Review of Scientific Instruments via MedWorm.com

The dependence of extracted current on discharge gas pressure in neutral beam ion sources on HL-2A tokamak

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

H. L. Wei, J. Y. Cao, J. Rao, G. J. Lei, S. F. Jiang et al. The discharge gas pressure is a key factor to influence the extracted current of ion source. In this paper, the dependence of extracted current on discharge gas pressure was investigated in detail at different arc discharge currents. The discharge gas pressure with a very broad range (0.1 Pa2.7 Pa) ... [Rev. Sci. Instrum. 83, 023302 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

Measurement of ion and electron temperatures in plasma blobs by using an improved ion sensitive probe system and statistical analysis methods

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

K. Okazaki, H. Tanaka, N. Ohno, N. Ezumi, Y. Tsuji et al. We have measured ion temperature as well as electron temperature in plasma blobs observed in a linear plasma device by using an improved ion sensitive probe. Currentvoltage characteristics of the ion sensitive probe inside and outside plasma blobs were re-constructed with a conditional sampling meth ... [Rev. Sci. Instrum. 83, 023502 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

A nanopositioner for scanning probe microscopy: The KoalaDrive

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

We present a new type of piezoelectric nanopositioner called KoalaDrive which can have a diameter less than 2.5 mm and a length smaller than 10 mm. The new operating principle provides a smooth travel sequence and avoids shaking which is intrinsic to nanopositioners based on inertial motion with saw ... [Rev. Sci. Instrum. 83, 023703 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

Effects of the transparent cathode on the performance of a relativistic magnetron with axial radiation

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

Wei Li, Yong-gui Liu, Jun Zhang, Ting Shu, Han-wu Yang et al. Experimental investigation of the transparent cathode used in a relativistic magnetron with axial radiation is reported in this paper. The transparent cathode is composed of six separate stalks with the diameter of 6 mm. Under the working condition of 549 kV and ~0.38 T, the relativistic magnetron w ... [Rev. Sci. Instrum. 83, 024707 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

Non-contact thrust stand calibration method for repetitively pulsed electric thrusters

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

Andrea R. Wong, Alexandra Toftul, Kurt A. Polzin, and J. Boise Pearson A thrust stand calibration technique for use in testing repetitively pulsed electric thrusters for in-space propulsion has been developed and tested using a modified hanging pendulum thrust stand. In the implementation of this technique, current pulses are applied to a solenoid to produce a pulsed m ... [Rev. Sci. Instrum. 83, 025103 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

Normalization schemes for ultrafast x-ray diffraction using a table-top laser-driven plasma source

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

We present an experimental setup of a laser-driven x-ray plasma source for femtosecond x-ray diffraction. Different normalization schemes accounting for x-ray source intensity fluctuations are discussed in detail. We apply these schemes to measure the temporal evolution of Bragg peak intensities of ... [Rev. Sci. Instrum. 83, 025104 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

Molecular and negative ion production by a standard electron cyclotron resonance ion source

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

R. Racz, S. Biri, Z. Juhasz, B. Sulik, and J. Palinkas Molecular and negative ion beams, usually produced in special ion sources, play an increasingly important role in fundamental and applied atomic physics. The ATOMKI-ECRIS is a standard ECR ion source, designed to provide highly charged ion (HCI) plasmas and beams. In the present work, H, O, OH, O, C ... [Rev. Sci. Instrum. 83, 02A313 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

The effect of gas mixing and biased disc voltage on the preglow transient of electron cyclotron resonance ion source

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

O. Tarvainen, V. Toivanen, J. Komppula, T. Kalvas, and H. Koivisto The effect of gas mixing and biased disc voltage on the preglow of electron cyclotron resonance ion source plasma has been studied with the AECR-U type 14 GHz ion source. It was found that gas mixing has a significant effect on the preglow. The extracted transient beam currents and efficiency of the ... [Rev. Sci. Instrum. 83, 02A314 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

Design of the injection beamline for the Californium Rare Isotope Breeder Upgrade electron beam ion source charge breeder

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

C. A. Dickerson, B. Mustapha, S. Kondrashev, P. N. Ostroumov, G. Savard et al. The design of the ion injection line connecting the electron beam ion source (EBIS) charge breeder and the Californium Rare Isotope Breeder Upgrade radio frequency quadrupole cooler-buncher at the Argonne Tandem Linear Accelerator System was investigated with particle tracking simulations. The injec ... [Rev. Sci. Instrum. 83, 02A502 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

Angular distribution of plasma in the vacuum arc ion source

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

A. G. Nikolaev, G. Yu. Yushkov, K. P. Savkin, and E. M. Oks This paper presents measurements of the angular distribution of the plasma components and different charge states of metal ions generated by a MEVVA-type ion source and measured by a time-of-flight mass-spectrometer. The experiments were performed for different cathode materials (Al, Cu, and Ti) and ... [Rev. Sci. Instrum. 83, 02A503 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

Status of the plasma generator of the superconducting proton linac

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

M. Kronberger, D. Faircloth, J. Lettry, M. Paoluzzi, H. Pereira et al. In the framework of the superconducting proton linac (SPL) study at CERN, a new non-cesiated H plasma generator driven by an external 2 MHz RF antenna has been developed and successfully operated at repetition rates of 50 Hz, pulse lengths of up to 3 ms, and average RF powers of up to 3 kW. The coup ... [Rev. Sci. Instrum. 83, 02A703 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

Initial study of the optical spectrum of the ISIS H ion source plasma

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

S. R. Lawrie, D. C. Faircloth, and K. Philippe The front end test stand is being constructed at the Rutherford Appleton Laboratory, with the aim of producing a 60 mA, 2 ms, 50 Hz, perfectly chopped H ion beam. To meet the beam requirements, a more detailed understanding of the ion source plasma is required. To this end, an initial study is made ... [Rev. Sci. Instrum. 83, 02A704 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

Simulation of H ion source extraction systems for the Spallation Neutron Source with Ion Beam Simulator

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

T. Kalvas, R. F. Welton, O. Tarvainen, B. X. Han, and M. P. Stockli A three-dimensional ion optical code IBSimu, which is being developed at the University of Jyvaskyla, features positive and negative ion plasma extraction models and self-consistent space charge calculation. The code has been utilized for modeling the existing extraction system of the H ion source o ... [Rev. Sci. Instrum. 83, 02A705 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

Production of rare isotope beams at the Texas A&M University Cyclotron Institute

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

G. Tabacaru, D. P. May, J. Arje, G. Chubarian, H. Clark et al. The Cyclotron Institute at Texas A&M is currently configuring a scheme for the production of radioactive-ion beams that incorporates a light-ion guide and a heavy-ion guide coupled with an electron-cyclotron-resonance ion source constructed for charge-breeding. This scheme is part of an upgrade to t ... [Rev. Sci. Instrum. 83, 02A905 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

Prospects for advanced electron cyclotron resonance and electron beam ion source charge breeding methods for EURISOL

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

P. Delahaye, A. Galata, J. Angot, G. Ban, L. Celona et al. As the most ambitious concept of isotope separation on line (ISOL) facility, EURISOL aims at producing unprecedented intensities of post-accelerated radioactive isotopes. Charge breeding, which transforms the charge state of radioactive beams from 1+ to an n+ charge state prior to post-acceleration, ... [Rev. Sci. Instrum. 83, 02A906 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

The development of the radio frequency driven negative ion source for neutral beam injectors (invited)

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

W. Kraus, U. Fantz, P. Franzen, M. Froschle, B. Heinemann et al. Large and powerful negative hydrogen ion sources are required for the neutral beam injection (NBI) systems of future fusion devices. Simplicity and maintenance-free operation favors RF sources, which are developed intensively at the Max-Planck-Institut fur Plasmaphysik (IPP) since many years. The ne ... [Rev. Sci. Instrum. 83, 02B104 (2012)] published Tue Feb 7, 2012. (Source: Review of Scientific Instruments)

A plastic miniature x-ray emission spectrometer based on the cylindrical von Hamos geometry

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

We describe the general design principles for the spectrometer and detail a specific implementation that covers Kbeta and valence level emission from Fe. Large spatial and ... [Rev. Sci. Instrum. 83, 023901 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

Analysis of temporal jitter in a copper vapor laser system

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

D. Durga Praveen Kumar, L. M. Gantayet, Sunita Singh, A. S. Rawat, Paramjit Rana et al. Temporal jitter in a magnetic pulse compression based copper vapor laser (CVL) system is analyzed by considering ripple present in the input dc power supply and ripple present in the magnetic core resetting power supply. It is shown that the jitter is a function of the ratio of operating voltage to ... [Rev. Sci. Instrum. 83, 025105 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

Note: A signal-to-noise ratio enhancement based on wafer light irradiation system for optical modulation spectroscopy measurement

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

H. Chouaib and P. V. Kelly We have recently found that the magnitude of the photoreflectance (PR) signal DeltaR/R on silicon wafers depends on the duration of continuous probe or pump beams irradiation. This temporal behavior of the DeltaR/R signal is attributed to the defects related electronic states at the Si/ SiO interfac ... [Rev. Sci. Instrum. 83, 026104 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

Development of compact linear accelerator in KBSI

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

Jang-Hee Yoon, Byoung-Seob Lee, Seyong Choi, Jin Yong Park, Jung-Woo Ok et al. The compact linear accelerator using a 28 GHz ECRIS is under construction in KBSI, South Korea. The main capability of this facility is the production of fast neurons for the neutron radiography. The designing of a superconducting magnet, microwave transmission system, beam extraction, and plasma ch ... [Rev. Sci. Instrum. 83, 02A315 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

Light ion source for proton/deuteron production at CEA Saclay for the Spiral2 project

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

O. Tuske, G. Adroit, O. Delferriere, J-F. Denis, Y. Gauthier et al. The production of rare radioactive ion beam (RIB) far from the valley of stability is one of the final purposes of the Spiral2 facility in Caen. The RIB will be produced by impinging a deuteron beam onto a carbon sample to produce a high neutron flux, which will interact with a uranium target. The p ... [Rev. Sci. Instrum. 83, 02A316 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

Profiles of ion beams and plasma parameters on a multi-frequencies microwaves large bore electron cyclotron resonance ion source with permanent magnets

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

Yushi Kato, Naoki Sakamoto, Ryutaro Kiriyama, Tomoya Takenaka, Yosuke Kurisu et al. In order to contribute to various applications of plasma and beams based on an electron cyclotron resonance, a new concept on magnetic field with all magnets on plasma production and confinement has been proposed with enhanced efficiency for broad and dense ion beam. The magnetic field configuration ... [Rev. Sci. Instrum. 83, 02A317 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

Off-line ionization tests using the surface and the plasma ion sources of the SPES project

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

M. Manzolaro, M. Manente, D. Curreli, J. Vasquez, J. Montano et al. The development of new target ion source systems for the selective production of exotic species (SPES) facility is currently in progress at Legnaro National Laboratories. In this context, the study of ion sources and their performance in terms of ionization efficiency and transversal emittance is a ... [Rev. Sci. Instrum. 83, 02A907 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

Initial commissioning results with the NSCL Electron Beam Ion Trap

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

S. Schwarz, G. Bollen, J. R. Crespo Lopez-Urrutia, O. Kester, K. Kittimanapun et al. The ReA reaccelerator is being added to the National Superconducting Cyclotron Laboratory (NSCL) fragmentation facility in order to provide exotic rare-isotope beams, not available at the Isotope Separation On-Line facilities, in the several-MeV/u energy range. The first stage of the NSCL reaccelera ... [Rev. Sci. Instrum. 83, 02A908 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

Generation of solid-density ultraintense ion beams by a picosecond laser pulse of circular polarization

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

S. Jablonski and J. Badziak This contribution reports particle-in-cell numerical studies of deuteron beam acceleration by a picosecond laser pulse of circular polarization. The effect of laser wavelength lambda and the Ilambda product (I is laser intensity) on the ion beam parameters is investigated. It is shown that at the Il ... [Rev. Sci. Instrum. 83, 02B105 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

New laser setup for the selective isotope production and investigation in a laser ion source at the IRIS (Investigation of Radioactive Isotopes on Synchrocyclotron) facility

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

A. E. Barzakh, D. V. Fedorov, V. S. Ivanov, P. L. Molkanov, V. N. Panteleev et al. New laser installation for the resonance ionization spectroscopy in a laser ion source and for rare isotope production has been recently put into operation at the IRIS (Investigation of Radioactive Isotopes on Synchrocyclotron) facility (Petersburg Nuclear Physics Institute, Gatchina). This is a sig ... [Rev. Sci. Instrum. 83, 02B306 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

Effects of electrode geometry on the ion beam extraction of closed drift type anode layer linear ion source

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

Seunghun Lee, Jong-Kuk Kim, and Do-Geun Kim Closed drift type anode layer linear ion source was investigated with focusing on the electrode geometry effects on ion beam emission and anode layer formation. In the electrode geometry, the discharge gap between anode and cathode plays an important role to control anode layer formation as well as ... [Rev. Sci. Instrum. 83, 02B703 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

Electrostatic energy analyzer measurements of low energy zirconium beam parameters in a plasma sputter-type negative ion source

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

Giovanni M. Malapit, Christian Lorenz S. Mahinay, Matthew D. Poral, and Henry J. Ramos A plasma sputter-type negative ion source is utilized to produce and detect negative Zr ions with energies between 150 and 450 eV via a retarding potential-type electrostatic energy analyzer. Traditional and modified semi-cylindrical Faraday cups (FC) inside the analyzer are employed to sample negat ... [Rev. Sci. Instrum. 83, 02B704 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

Low energy beam transport for facility for rare isotope beams driver linear particle accelerator

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

L. T. Sun, D. Leitner, G. Machicoane, E. Pozdeyev, V. Smirnov et al. The driver linac for the facility for rare isotope beams (FRIB) will provide a wide range of primary ion beams for nuclear physics research. The linac will be capable of accelerating a uranium beam to an energy of up to 200 Mev/u and delivering it to a fragmentation target with a maximum power of 40 ... [Rev. Sci. Instrum. 83, 02B705 (2012)] published Wed Feb 8, 2012. (Source: Review of Scientific Instruments)

3D mechanical measurements with an atomic force microscope on 1D structures

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

Christian Kallesoe, Martin B. Larsen, Peter Boggild, and Kristian Molhave We have developed a simple method to characterize the mechanical properties of three dimensional nanostructures, such as nanorods standing up from a substrate. With an atomic force microscope the cantilever probe is used to deflect a horizontally aligned nanorod at different positions along the nano ... [Rev. Sci. Instrum. 83, 023704 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

The long range voice coil atomic force microscope

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

H. Barnard, C. Randall, D. Bridges, and P. K. Hansma Most current atomic force microscopes (AFMs) use piezoelectric ceramics for scan actuation. Piezoelectric ceramics provide precision motion with fast response to applied voltage potential. A drawback to piezoelectric ceramics is their inherently limited ranges. For many samples this is a nonissue, a ... [Rev. Sci. Instrum. 83, 023705 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

A third-order complementary metaloxidesemiconductor sigma-delta modulator operating between 4.2 K and 300 K

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

Burak Okcan, Georges Gielen, and Chris Van Hoof This paper presents a third-order switched-capacitor sigma-delta modulator implemented in a standard 0.35-[mu]m CMOS process. It operates from 300 K down to 4.2 K, achieving 70.8 dB signal-to-noise-plus-distortion ratio (SNDR) in a signal bandwidth of 5 kHz with a sampling frequency of 500 kHz at 30 ... [Rev. Sci. Instrum. 83, 024708 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

Ultra-sensitive thermal conductance measurement of one-dimensional nanostructures enhanced by differential bridge

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

Matthew C. Wingert, Zack C. Y. Chen, Shooshin Kwon, Jie Xiang, and Renkun Chen Thermal conductivity of one-dimensional nanostructures, such as nanowires, nanotubes, and polymer chains, is of significant interest for understanding nanoscale thermal transport phenomena as well as for practical applications in nanoelectronics, energy conversion, and thermal management. Various te ... [Rev. Sci. Instrum. 83, 024901 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

Influence of the shear flow on electron cyclotron resonance plasma confinement in an axisymmetric magnetic mirror trap of the electron cyclotron resonance ion source

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

I. V. Izotov, S. V. Razin, A. V. Sidorov, V. A. Skalyga, V. G. Zorin et al. Influence of shear flows of the dense plasma created under conditions of the electron cyclotron resonance (ECR) gas breakdown on the plasma confinement in the axisymmetric mirror trap (vortex confinement) was studied experimentally and theoretically. A limiter with bias potential was set inside the ... [Rev. Sci. Instrum. 83, 02A318 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

Design and investigations of the superconducting magnet system for the multipurpose superconducting electron cyclotron resonance ion source

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

K. Tinschert, R. Lang, J. Mader, J. Rossbach, P. Spadtke et al. The production of intense beams of heavy ions with electron cyclotron resonance ion sources (ECRIS) is an important request at many accelerators. According to the ECR condition and considering semi-empirical scaling laws, it is essential to increase the microwave frequency together with the magnetic ... [Rev. Sci. Instrum. 83, 02A319 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

Performance and operation of advanced superconducting electron cyclotron resonance ion source SECRAL at 24 GHz

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

H. W. Zhao, W. Lu, X. Z. Zhang, Y. C. Feng, J. W. Guo et al. SECRAL (superconducting ECR ion source with advanced design in Lanzhou) ion source has been in routine operation for Heavy Ion Research Facility in Lanzhou (HIRFL) accelerator complex since May 2007. To further enhance the SECRAL performance in order to satisfy the increasing demand for intensive hi ... [Rev. Sci. Instrum. 83, 02A320 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

Reliability test of an electron cyclotron resonance ion source for accelerator driven sub-critical system

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

B. Cui, B. Tang, R. Ma, Q. Huang, Y. Ma et al. The reliability test of an electron cyclotron resonance ion source developed for accelerator driven sub-critical system is carried out in China Institute of Atomic Energy. A unique technique to improve the reliability is adopted. The source is operated for more than 200 h at 75 keV, 100 mA extracted ... [Rev. Sci. Instrum. 83, 02A321 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

Design of a compact electron cyclotron resonance ion source for medium charge state light ions

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

D. Button, M. A. C. Hotchkis, and G. N. Milford At the Australian Nuclear Science and Technology Organization we are developing a new isotope ratio mass spectrometer based on the measurement of multiple charge state ions. We have carried out a review of our existing ECR ion source and identified a number of design flaws. For the new instrument, w ... [Rev. Sci. Instrum. 83, 02A322 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

First commissioning results with the Grenoble test electron cyclotron resonance ion source at iThemba LABS

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

R. Thomae, J. Conradie, H. Delsink, H. Du Plessis, D. Fourie et al. iThemba Laboratory for Accelerator Based Science (iThemba LABS) is a multi-disciplinary accelerator facility. One of its main activities is the operation of a separated-sector cyclotron with a K-value of 200, which provides beams of various ion species. These beams are used for fundamental nuclear p ... [Rev. Sci. Instrum. 83, 02A323 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

Electron cyclotron resonance plasma production by using pulse mode microwaves and dependences of ion beam current and plasma parameters on the pulse condition

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

Ryutaro Kiriyama, Tomoya Takenaka, Yousuke Kurisu, Dai Nozaki, Fuminobu Sato et al. We measure the ion beam current and the plasma parameters by using the pulse mode microwave operation in the first stage of a tandem type ECRIS. The time averaged extracted ion beam current in the pulse mode operation is larger than that of the cw mode operation with the same averaged microwave powe ... [Rev. Sci. Instrum. 83, 02A324 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

Ion optics of RHIC electron beam ion source

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

A. Pikin, J. Alessi, E. Beebe, A. Kponou, M. Okamura et al. RHIC electron beam ion source has been commissioned to operate as a versatile ion source on RHIC injection facility supplying ion species from He to Au for Booster. Except for light gaseous elements RHIC EBIS employs ion injection from several external primary ion sources. With electrostatic optics ... [Rev. Sci. Instrum. 83, 02A504 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

Target normal sheath acceleration analytical modeling, comparative study and developments

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

C. Perego, D. Batani, A. Zani, and M. Passoni Ultra-intense laser interaction with solid targets appears to be an extremely promising technique to accelerate ions up to several MeV, producing beams that exhibit interesting properties for many foreseen applications. Nowadays, most of all the published experimental results can be theoretically ex ... [Rev. Sci. Instrum. 83, 02B502 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

Progress towards the development of a realistic electron cyclotron resonance ion source extraction model

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

D. Winklehner, D. Leitner, J. Y. Benitez, C. M. Lyneis, and M. M. Strohmeier In this paper, an ongoing effort to provide a simulation and design tool for electron cyclotron resonance ion source extraction and low energy beam transport is described and benchmarked against experimental results. Utilizing the particle-in-cell code WARP, a set of scripts has been developed: A se ... [Rev. Sci. Instrum. 83, 02B706 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

Test bench to commission a third ion source beam line and a newly designed extraction system

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

T. Winkelmann, R. Cee, T. Haberer, B. Naas, and A. Peters The HIT (Heidelberg Ion Beam Therapy Center) is the first hospital-based treatment facility in Europe where patients can be irradiated with protons and carbon ions. Since the commissioning starting in 2006 two 14.5 GHz electron cyclotron resonance ion sources are routinely used to produce a variety ... [Rev. Sci. Instrum. 83, 02B904 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

Intense beams from gases generated by a permanent magnet ECR ion source at PKU

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

H. T. Ren (任海涛), S. X. Peng (彭士香), P. N. Lu (吕鹏南), S. Yan (颜莎), Q. F. Zhou (周泉丰) et al. An electron cyclotron resonance (ECR) ion source is designed for the production of high-current ion beams of various gaseous elements. At the Peking University (PKU), the primary study is focused on developing suitable permanent magnet ECR ion sources (PMECRs) for separated function radio frequency ... [Rev. Sci. Instrum. 83, 02B905 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

An electrooptic probe to determine internal electric fields in a piezoelectric transformer

Review of Scientific Instruments — Fri, 10 Feb 2012 01:13:17 +0100

Peter Norgard and Scott Kovaleski A technique using the electrooptic effect to determine the output voltage of an optically clear LiNbO piezoelectric transformer was developed and explored. A brief mathematical description of the solution is provided, as well as experimental data demonstrating a linear response under ac resonant ope ... [Rev. Sci. Instrum. 83, 025106 (2012)] published Thu Feb 9, 2012. (Source: Review of Scientific Instruments)

A capillary absorption spectrometer for stable carbon isotope ratio (C/C) analysis in very small samples

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

J. F. Kelly, R. L. Sams, T. A. Blake, M. Newburn, J. Moran et al. A capillary absorption spectrometer (CAS) suitable for IR laser isotope analysis of small CO samples is presented. The system employs a continuous-wave (cw) quantum cascade laser to study nearly adjacent rovibrational transitions of different isotopologues of CO near 2307 cm (4.34 [mu]m). This initi ... [Rev. Sci. Instrum. 83, 023101 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Improved chopping of a lithium beam for plasma edge diagnostic at ASDEX Upgrade

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

M. Willensdorfer, E. Wolfrum, R. Fischer, J. Schweinzer, M. Sertoli et al. The lithium beam diagnostic at ASDEX Upgrade routinely delivers electron density profiles in the plasma edge by lithium beam impact excitation spectroscopy. An accurate background subtraction requires a periodically chopped lithium beam. A new, improved chopping system was developed and installed. I ... [Rev. Sci. Instrum. 83, 023501 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Effectiveness of frequency mapping on 28 nm device broken scan chain failures

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

S. H. Goh, Yan Pan, G. F. You, Y. H. Chan, He ran et al. Frequency mapping methodology is an effective diagnostic tool for detection of manufacturing defects in scan chains. It analyses reflected laser modulations from toggling scan cells to localize defective scan path or scan cell. In this paper, we demonstrate experimentally that the use of solid immer ... [Rev. Sci. Instrum. 83, 023702 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Pilot-scale cooling tower to evaluate corrosion, scaling, and biofouling control strategies for cooling system makeup water

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

S. H. Chien, M. K. Hsieh, H. Li, J. Monnell, D. Dzombak et al. Pilot-scale cooling towers can be used to evaluate corrosion, scaling, and biofouling control strategies when using particular cooling system makeup water and particular operating conditions. To study the potential for using a number of different impaired waters as makeup water, a pilot-scale system ... [Rev. Sci. Instrum. 83, 024101 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

An explosively driven high-power microwave pulsed power system

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

M. A. Elsayed, A. A. Neuber, J. C. Dickens, J. W. Walter, M. Kristiansen et al. The increased popularity of high power microwave systems and the various sources to drive them is the motivation behind the work to be presented. A stand-alone, self-contained explosively driven high power microwave pulsed power system has been designed, built, and tested at Texas Tech University's ... [Rev. Sci. Instrum. 83, 024705 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Application of length vernier in phase coincidence detection and precision frequency measurement

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

Miao Miao, Zhou Wei, and Wang Bin For comparison of arbitrary frequency signals, the paper proposed two levels of length vernier based on the time-space relationship are used in three levels of phase coincidence detecting circuits to extract the phase coincidence information by proper logic calculation. The length/phase of each vern ... [Rev. Sci. Instrum. 83, 024706 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Recent progress on the superconducting ion source VENUS

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

J. Y. Benitez, K. Y. Franzen, A. Hodgkinson, T. Loew, C. M. Lyneis et al. The 28 GHz Ion Source VENUS (versatile ECR for nuclear science) is back in operation after the superconducting sextupole leads were repaired and a fourth cryocooler was added. VENUS serves as an R&D device to explore the limits of electron cyclotron resonance source performance at 28 GHz with its 10 ... [Rev. Sci. Instrum. 83, 02A311 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

The electron cyclotron resonance ion source with arc-shaped coils concept (invited)

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

H. Koivisto, P. Suominen, O. Tarvainen, and P. Spadtke The main limitation to further improve the performance of ECR ion sources is set by the magnet technology related to the multipole magnet field used for the closed minimum-B structure. The JYFL ion source group has sought different approaches to improve the strength of the minimum-B structure requir ... [Rev. Sci. Instrum. 83, 02A312 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Matrix of small-radius radio-frequency discharges as a volume-production based source of negative hydrogen ions

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

St. Lishev, Ts. Paunska, A. Shivarova, and Kh. Tarnev Based on experience from a workboth theoretical and experimental oneon negative hydrogen ion beam sources studied regarding fusion applications, a novel design of a rf source with volume production of the ions is proposed. The suggestion is for a source constructed as a matrix of small-radius tandem ... [Rev. Sci. Instrum. 83, 02A702 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Upgrade of the resonance ionization laser ion source at ISOLDE on-line isotope separation facility: New lasers and new ion beams

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

V. N. Fedosseev, L.-E. Berg, D. V. Fedorov, D. Fink, O. J. Launila et al. The resonance ionization laser ion source (RILIS) produces beams for the majority of experiments at the ISOLDE on-line isotope separator. A substantial improvement in RILIS performance has been achieved through a series of upgrade steps: replacement of the copper vapor lasers by a Nd:YAG laser; repl ... [Rev. Sci. Instrum. 83, 02A903 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Laser ion source development at Holifield Radioactive Ion Beam Facility

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

This report describes the efforts made to develop a resonant-ionization laser ion source based on tunable Ti:sapphire lasers for nuclear physics and astrophysics research at Holifield Radioactive Ion Beam Facility. Three Ti:sapphire lasers have been upgraded with individual pump lasers to eliminate ... [Rev. Sci. Instrum. 83, 02A904 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Diagnostics of the ITER neutral beam test facility

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

R. Pasqualotto, G. Serianni, P. Sonato, M. Agostini, M. Brombin et al. The ITER heating neutral beam (HNB) injector, based on negative ions accelerated at 1 MV, will be tested and optimized in the SPIDER source and MITICA full injector prototypes, using a set of diagnostics not available on the ITER HNB. The RF source, where the H/D production is enhanced by cesium eva ... [Rev. Sci. Instrum. 83, 02B103 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Comparison between off-resonance and electron Bernstein waves heating regime in a microwave discharge ion source

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

G. Castro, D. Mascali, F. P. Romano, L. Celona, S. Gammino et al. A microwave discharge ion source (MDIS) operating at the Laboratori Nazionali del Sud of INFN, Catania has been used to compare the traditional electron cyclotron resonance (ECR) heating with an innovative mechanisms of plasma ignition based on the electrostatic Bernstein waves (EBW). EBW are obtain ... [Rev. Sci. Instrum. 83, 02B501 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Laser and focused ion beam combined machining for micro dies

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

Y. Yoshida, W. Okazaki, and T. Uchida We have developed a laser and focused ion beam (FIB) compound process for press mold dies of a micro lens array (MLA) and a micro needle array (MNA) in a glassy carbon (GC). The press mold die of the MLA was roughly fabricated by UV-YAG laser. After this process, we finished this surface by scanning ... [Rev. Sci. Instrum. 83, 02B901 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

The second generation Singapore high resolution proton beam writing facility

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

J. A. van Kan, P. Malar, and Armin Baysic de Vera A new proton beam focusing facility, designed for proton beam writing (PBW) applications has been tested. PBW allows for proximity free structuring of high aspect ratio, high-density 3D nanostructures. The new facility is designed around OM52 compact quadrupole lenses capable of operating in a varie ... [Rev. Sci. Instrum. 83, 02B902 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

A Tandetron as proton injector for the eye tumor therapy in Berlin

Review of Scientific Instruments — Tue, 07 Feb 2012 01:08:28 +0100

J. Rohrich, T. Damerow, W. Hahn, U. Muller, U. Reinholz et al. The therapy of eye tumors with fast protons is an excellent tool giving very high local control rates. At the Helmholtz-Zentrum Berlin (HZB) almost 1800 patients were treated since 1998. A 2 MV Tandetron was installed as injector for the k = 132 HZB cyclotron. Using the standard 358 duoplasmatron io ... [Rev. Sci. Instrum. 83, 02B903 (2012)] published Mon Feb 6, 2012. (Source: Review of Scientific Instruments)

Note: Absolute calibration of two DRZ phosphor screens using ultrashort electron bunch

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

This article gives the absolute calibration of two types phosphor screens (DRZ) that were used to detect and characterize electron bunches driven by laser-plasma accelerator. The test was performed with picoseconds electron bunch at a radio frequency linear electron accelerator in Tsinghua Universit ... [Rev. Sci. Instrum. 83, 026101 (2012)] published Wed Feb 1, 2012. (Source: Review of Scientific Instruments)

Preface: Proceedings of the 14th International Conference on Ion Sources, Giardini Naxos, Italy, 2011

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

S. Gammino and L. Celona Abstract not available. [Rev. Sci. Instrum. 83, 02A101 (2012)] published Wed Feb 1, 2012. (Source: Review of Scientific Instruments)

Concept for a fourth generation electron cyclotron resonance ion source

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

C. Lyneis, P. Ferracin, S. Caspi, A. Hodgkinson, and G. L. Sabbi A fourth generation electron cyclotron resonance ion source with an operating frequency between 40 and 56 GHz has the potential to quadruple the heavy-ion beam currents and provide a cost effective upgrade path for heavy ion drivers in use or in the planning stage at radioactive beam facilities. Des ... [Rev. Sci. Instrum. 83, 02A301 (2012)] published Wed Feb 1, 2012. (Source: Review of Scientific Instruments)

Upgraded vacuum arc ion source for metal ion implantation

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

A. G. Nikolaev, E. M. Oks, K. P. Savkin, G. Yu. Yushkov, and I. G. Brown Vacuum arc ion sources have been made and used by a large number of research groups around the world over the past twenty years. The first generation of vacuum arc ion sources (dubbed Mevva, for metal vapor vacuum arc) was developed at Lawrence Berkeley National Laboratory in the 1980s. This paper c ... [Rev. Sci. Instrum. 83, 02A501 (2012)] published Wed Feb 1, 2012. (Source: Review of Scientific Instruments)

Optimizing the front end test stand high performance H ion source at RAL

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

D. Faircloth, S. Lawrie, C. Gabor, A. Letchford, M. Whitehead et al. The aim of the front end test stand project is to demonstrate that chopped low energy H beams of high quality can be produced. The beam line currently consists of the ion source, a 3 solenoid low energy beam transport and a suite of diagnostics. A brief status report of the radio frequency quadrupol ... [Rev. Sci. Instrum. 83, 02A701 (2012)] published Wed Feb 1, 2012. (Source: Review of Scientific Instruments)

Charge breeding simulations for radioactive ion beam production

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

V. Variale, A. C. Raino, and T. Clauser The charge breeding technique is used for radioactive ion beam (RIB) production in order of optimizing the re-acceleration of the radioactive element ions produced by a primary beam in a thick target. Charge breeding is achieved by means of a device capable of increasing the ion charge state from 1+ ... [Rev. Sci. Instrum. 83, 02A901 (2012)] published Wed Feb 1, 2012. (Source: Review of Scientific Instruments)

Effect of fast positive ions incident on caesiated plasma grid of negative ion source

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

M. Bacal This paper describes the effect on negative ion formation on a caesiated surface of the backscattering of positive ions approaching it with energy of a few tens of eV. For a positive ion energy of 45 eV, the surface produced negative ion current density due to these fast positive ions is 12 times la ... [Rev. Sci. Instrum. 83, 02B101 (2012)] published Wed Feb 1, 2012. (Source: Review of Scientific Instruments)

Low-energy, high-current, ion source with cold electron emitter

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

A. V. Vizir, M. V. Shandrikov, G. Yu. Yushkov, and E. M. Oks An ion source based on a two-stage discharge with electron injection from a cold emitter is presented. The first stage is the emitter itself, and the second stage provides acceleration of injected electrons for gas ionization and formation of ion flow ( (Source: Review of Scientific Instruments)

Shot-to-shot reproducibility in the emission of fast highly charged metal ions from a laser ion source

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

J. Krasa, A. Velyhan, D. Margarone, E. Krousky, L. Laska et al. The generation of fast highly charged metal ions with the use of the sub-nanosecond Prague Asterix Laser System, operated at a fundamental wavelength of 1315 nm, is reported. Particular attention is paid to shot-to-shot reproducibility in the ion emission. Au and Pd targets were exposed to intensiti ... [Rev. Sci. Instrum. 83, 02B302 (2012)] published Wed Feb 1, 2012. (Source: Review of Scientific Instruments)

Status of the laser ion source at IMP

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

S. Sha, H. W. Zhao, X. H. Guo, Z. L. Zhang, X. Fang et al. A laser (Nd:YAG laser, 3 J, 1064 nm, 810 ns) ion source has been built and under development at IMP to provide pulsed high-charge-state heavy ion beams to a radio frequency quadrupole (RFQ) for upgrading the IMP accelerators with a new low-energy beam injector. The laser ion source currently operate ... [Rev. Sci. Instrum. 83, 02B303 (2012)] published Wed Feb 1, 2012. (Source: Review of Scientific Instruments)

Optimizing a microwave gas ion source for continuous-flow accelerator mass spectrometry

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

K. F. von Reden, M. L. Roberts, J. R. Burton, and S. R. Beaupre A 2.45 GHz microwave ion source coupled with a magnesium charge exchange canal (C x C) has been successfully adapted to a large acceptance radiocarbon accelerator mass spectrometry system at the National Ocean Sciences Accelerator Mass Spectrometry (AMS) Facility, Woods Hole Oceanographic Institut ... [Rev. Sci. Instrum. 83, 02B304 (2012)] published Wed Feb 1, 2012. (Source: Review of Scientific Instruments)

A new structure of superconducting magnetic system for 50 GHz operations (invited)

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

D. Z. Xie High field and high frequency have been leading the development of electron cyclotron resonance ion sources (ECRISs) in the past decade as demonstrated by the achieved great performance. The present superconducting magnet structures built with NbTi wires have reached an axial field of 3.54.0 T and a ... [Rev. Sci. Instrum. 83, 02A302 (2012)] published Wed Feb 1, 2012. (Source: Review of Scientific Instruments)

Characteristics of low-energy ion beams extracted from a wire electrode geometry

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

M. Vasquez, Jr., S. Tokumura, T. Kasuya, S. Maeno, and M. Wada Beams of argon ions with energies less than 50 eV were extracted from an ion source through a wire electrode extractor geometry. A retarding potential energy analyzer (RPEA) was constructed in order to characterize the extracted ion beams. The single aperture RPEA was used to determine the ion energ ... [Rev. Sci. Instrum. 83, 023301 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Active noise cancellation in a suspended interferometer

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

Jennifer C. Driggers, Matthew Evans, Keenan Pepper, and Rana Adhikari We demonstrate feed-forward vibration isolation on a suspended Fabry-Perot interferometer using Wiener filtering and a variant of the common least mean square adaptive filter algorithm. We compare the experimental results with theoretical estimates of the cancellation efficiency. Using data from the ... [Rev. Sci. Instrum. 83, 024501 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Performance of a fast digital integrator in on-field magnetic measurements for particle accelerators

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

P. Arpaia, L. Bottura, L. Fiscarelli, and L. Walckiers The fast digital integrator has been conceived to face most demanding magnet test requirements with a resolution of 10 ppm, a signal-to-noise ratio of 105 dB at 20 kHz, a time resolution of 50 ns, an offset of 10 ppm, and on-line processing. In this paper, the on-field achievements of the fast digit ... [Rev. Sci. Instrum. 83, 024702 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Generalized four-point characterization method using capacitive and ohmic contacts

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

Brian S. Kim, Wang Zhou, Yash D. Shah, Chuanle Zhou, N. Işık et al. In this paper, a four-point characterization method is developed for samples that have either capacitive or ohmic contacts. When capacitive contacts are used, capacitive current- and voltage-dividers result in a capacitive scaling factor not present in four-point measurements with only ohmic contact ... [Rev. Sci. Instrum. 83, 024703 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

High temperature Seebeck coefficient and resistance measurement system for thermoelectric materials in the thin disk geometry

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

P. H. Michael Bottger, E. Flage-Larsen, O. B. Karlsen, and Terje G. Finstad A versatile apparatus to measure the cross-plane Seebeck coefficient and the resistivity of bulk samples shaped as disks or thin plates, over a temperature range of 300 K620 K with possible extension to higher temperatures, is presented. It is constructed from readily available equipment and instrum ... [Rev. Sci. Instrum. 83, 025101 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Compact cryogenic source of periodic hydrogen and argon droplet beams for relativistic laser-plasma generation

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

We present a cryogenic source of periodic streams of micrometer-sized hydrogen and argon droplets as ideal mass-limited target systems for fundamental intense laser-driven plasma applications. The highly compact design combined with a high temporal and spatial droplet stability makes our injector id ... [Rev. Sci. Instrum. 83, 025102 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Note: Rotational compliance and instantaneous center of rotation in segmented and V-shaped notch hinges

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

Yakov Tseytlin This note shows a technique for the calculation of rotational compliance (stiffness) and develops a generalized mathematical model for the virtual center of rotation position in concave, segmented, and V-shaped notch hinges using Chebyshev's polynomials. The calculational results are in a good agree ... [Rev. Sci. Instrum. 83, 026102 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Effect of pulse-modulated microwaves on fullerene ion production with electron cyclotron resonance ion source

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

T. Asaji, T. Uchida, H. Minezaki, K. Oshima, R. Racz et al. Fullerene plasmas generated by pulse-modulated microwaves have been investigated under typical conditions at the Bio-Nano electron cyclotron resonance ion source. The effect of the pulse modulation is distinct from that of simply structured gases, and then the density of the fullerene plasmas increa ... [Rev. Sci. Instrum. 83, 02A303 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Operation of the CAPRICE electron cyclotron resonance ion source applying frequency tuning and double frequency heating

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

F. Maimone, K. Tinschert, L. Celona, R. Lang, J. Mader et al. The properties of the electromagnetic waves heating the electrons of the ECR ion sources (ECRIS) plasma affect the features of the extracted ion beams such as the emittance, the shape, and the current, in particular for higher charge states. The electron heating methods such as the frequency tuning ... [Rev. Sci. Instrum. 83, 02A304 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Characterization of the versatile ion source and possible applications as injector for future projects

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

R. Miracoli, L. Celona, G. Castro, D. Mascali, S. Gammino et al. The versatile ion source (VIS) is an off-resonance microwave discharge ion source which generates a slightly overdense plasma (n [approximate] 10 cm) operating at 2.45 GHz and producing more than 50 mA of proton beams. A detailed characterization of the source, by operating between 60 and 75 kV, in ... [Rev. Sci. Instrum. 83, 02A305 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Electron cyclotron resonance ion source plasma chamber studies using a network analyzer as a loaded cavity probe

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

V. Toivanen, O. Tarvainen, C. Lyneis, J. Kauppinen, J. Komppula et al. A method and first results utilizing a network analyzer as a loaded cavity probe to study the resonance properties of a plasma filled electron cyclotron resonance ion source (ECRIS) plasma chamber are presented. The loaded cavity measurements have been performed using a dual port technique, in which ... [Rev. Sci. Instrum. 83, 02A306 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Advanced light ion source extraction system for a new electron cyclotron resonance ion source geometry at Saclay

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

O. Delferriere, R. Gobin, F. Harrault, S. Nyckees, Y. Sauce et al. One of the main goal of intense light ion injector projects such as IPHI, IFMIF, or SPIRAL2, is to produce high current beams while keeping transverse emittance as low as possible. To prevent emittance growth induced in a dual solenoid low energy transfer line, its length has to be minimized. This c ... [Rev. Sci. Instrum. 83, 02A307 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Results of RIKEN superconducting electron cyclotron resonance ion source with 28 GHz

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

Y. Higurashi, J. Ohnishi, T. Nakagawa, H. Haba, M. Tamura et al. We measured the beam intensity of highly charged heavy ions and x-ray heat load for RIKEN superconducting electron cyclotron resonance ion source with 28 GHz microwaves under the various conditions. The beam intensity of Xe became maximum at B ~ 0.65 T, which was ~65% of the magnetic field strength ... [Rev. Sci. Instrum. 83, 02A308 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

First neutral beam injection experiments on KSTAR tokamak

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

S. H. Jeong, D. H. Chang, T. S. Kim, S. R. In, K. W. Lee et al. The first neutral beam (NB) injection system of the Korea Superconducting Tokamak Advanced Research (KSTAR) tokamak was partially completed in 2010 with only 1/3 of its full design capability, and NB heating experiments were carried out during the 2010 KSTAR operation campaign. The ion source is com ... [Rev. Sci. Instrum. 83, 02B102 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Laser produced streams of Ge ions accelerated and optimized in the electric fields for implantation into SiO substrates

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

M. Rosinski, L. Giuffrida, P. Parys, P. Gasior, E. Fazio et al. Ge crystals were prepared by means of laser-induced ion implantation technique. A Nd:YAG pulsed laser (repetition rate: 10 Hz; pulse duration: 3.5 ns; pulse energy: ~0.5 J) was used both as an ion source and to carry out the ablation processes. The optimization of the laser-generated ion beam parame ... [Rev. Sci. Instrum. 83, 02B305 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Compression and focusing a laser produced plasma using a plasma optical system

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

C. Pagano, A. A. Goncharov, and J. G. Lunney Axi-symmetric compression and focusing of a low temperature laser produced copper plasma with an electrostatic plasma optical system was investigated for the first time. The degree of plasma concentration was quantified using Langmuir ion measurements of the ion flow and optical measurements of the ... [Rev. Sci. Instrum. 83, 02B701 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

Automatic generation of IGUN input files for enhanced mesh resolution at the plasma meniscus

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

Reinard Becker The plasma-beam interface (meniscus) is highly nonlinear and its correct simulation needs a mesh resolution of the order of the Debye length. In high intensity ion sources, the plasma density is usually too high and the Debye length is too small for a sufficient mesh resolution. A well established m ... [Rev. Sci. Instrum. 83, 02B702 (2012)] published Thu Feb 2, 2012. (Source: Review of Scientific Instruments)

A new TriBeam system for three-dimensional multimodal materials analysis

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

McLean P. Echlin, Alessandro Mottura, Christopher J. Torbet, and Tresa M. Pollock The unique capabilities of ultrashort pulse femtosecond lasers have been integrated with a focused ion beam (FIB) platform to create a new system for rapid 3D materials analysis. The femtosecond laser allows for in situ layer-by-layer material ablation with high material removal rates. The high puls ... [Rev. Sci. Instrum. 83, 023701 (2012)] published Fri Feb 3, 2012. (Source: Review of Scientific Instruments)

Broadband microwave spectroscopy in Corbino geometry at He temperatures

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

Katrin Steinberg, Marc Scheffler, and Martin Dressel A broadband microwave spectrometer has been constructed to determine the complex conductivity of thin metal films at frequencies from 45 MHz to 20 GHz working in the temperature range from 0.45 K to 2 K (in a He cryostat). The setup follows the Corbino approach: a vector network analyzer measures th ... [Rev. Sci. Instrum. 83, 024704 (2012)] published Fri Feb 3, 2012. (Source: Review of Scientific Instruments)

Note: Self-sensing based on charge control improves the performance of active damping using piezoelements

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

Yong Bin Liu, Lian Sheng Zhang, and Zhi Hua Feng A piezoelectric element can be used separately as a sensor or an actuator. A self-sensing strategy based on a charge driver can utilize a piezoelectric element as a sensor while actuating. The strategy was proven via experiments on a cantilever vibrator using a piezoelectric plate with both sensing ... [Rev. Sci. Instrum. 83, 026103 (2012)] published Fri Feb 3, 2012. (Source: Review of Scientific Instruments)

Generation of high charge state metal ion beams by electron cyclotron resonance heating of vacuum arc plasma in cusp trap

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

A. G. Nikolaev, K. P. Savkin, E. M. Oks, A. V. Vizir, G. Yu. Yushkov et al. A method for generating high charge state heavy metal ion beams based on high power microwave heating of vacuum arc plasma confined in a magnetic trap under electron cyclotron resonance conditions has been developed. A feature of the work described here is the use of a cusp magnetic field with inher ... [Rev. Sci. Instrum. 83, 02A309 (2012)] published Fri Feb 3, 2012. (Source: Review of Scientific Instruments)

Dependence of ion beam current on position of mobile plate tuner in multi-frequencies microwaves electron cyclotron resonance ion source

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

Yosuke Kurisu, Ryutaro Kiriyama, Tomoya Takenaka, Dai Nozaki, Fuminobu Sato et al. We are constructing a tandem-type electron cyclotron resonance ion source (ECRIS). The first stage of this can supply 2.45 GHz and 1113 GHz microwaves to plasma chamber individually and simultaneously. We optimize the beam current I by the mobile plate tuner. The I is affected by the position of the ... [Rev. Sci. Instrum. 83, 02A310 (2012)] published Fri Feb 3, 2012. (Source: Review of Scientific Instruments)

Development of electron beam ion source charge breeder for rare isotopes at Californium Rare Isotope Breeder Upgrade

Review of Scientific Instruments — Sat, 04 Feb 2012 01:22:35 +0100

S. Kondrashev, C. Dickerson, A. Levand, P. N. Ostroumov, R. C. Pardo et al. Recently, the Californium Rare Isotope Breeder Upgrade (CARIBU) to the Argonne Tandem Linac Accelerator System (ATLAS) was commissioned and became available for production of rare isotopes. Currently, an electron cyclotron resonance ion source is used as a charge breeder for CARIBU beams. To further ... [Rev. Sci. Instrum. 83, 02A902 (2012)] published Fri Feb 3, 2012. (Source: Review of Scientific Instruments)

Spectroscopic reflectometry of mirror surfaces during plasma exposure

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

M. Wisse, B. Eren, L. Marot, R. Steiner, and E. Meyer An in situ spectroscopic reflectometry system has been built to investigate the evolution of the specular reflectivity spectrum of ITER first mirror samples during plasma exposure. Results are presented for three different types of molybdenum mirror samples that were exposed to deuterium plasma, inc ... [Rev. Sci. Instrum. 83, 013509 (2012)] published Mon Jan 30, 2012. (Source: Review of Scientific Instruments)

A comparison of light spot hydrophone and fiber optic probe hydrophone for lithotripter field characterization

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

N. Smith, G. N. Sankin, W. N. Simmons, R. Nanke, J. Fehre et al. The performance of a newly developed light spot hydrophone (LSHD) in lithotripter field characterization was compared to that of the fiber optic probe hydrophone (FOPH). Pressure waveforms produced by a stable electromagnetic shock wave source were measured by the LSHD and FOPH under identical exper ... [Rev. Sci. Instrum. 83, 014301 (2012)] published Mon Jan 30, 2012. (Source: Review of Scientific Instruments)

Glow-to-arc transition events in H-Ar direct current pulsed plasma: Automated measurement of current and voltage

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

Luciano A. Mendes, Marcio Mafra, and Jhonatam C. Rodrigues The glow-to-arc transition phenomena (arcing) observed in plasma reactors used in materials processing was studied through the arcs characteristic current and voltage waveforms. In order to capture these arcs signals, a LABVIEW based automated instrumentation system (ARCVIEW) was developed, includin ... [Rev. Sci. Instrum. 83, 015112 (2012)] published Mon Jan 30, 2012. (Source: Review of Scientific Instruments)

A new quasi-steady method to measure gas permeability of weakly permeable porous media

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

Yves Jannot and Didier Lasseux A new quasi-steady method for the determination of the apparent gas permeability of porous materials is presented in this paper along with the corresponding interpretative physical model derived from the unsteady flow equations. This method is mainly dedicated to the measurement of very low permeabi ... [Rev. Sci. Instrum. 83, 015113 (2012)] published Mon Jan 30, 2012. (Source: Review of Scientific Instruments)

Ultrahigh resolution soft x-ray emission spectrometer at BL07LSU in SPring-8

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

Yoshihisa Harada, Masaki Kobayashi, Hideharu Niwa, Yasunori Senba, Haruhiko Ohashi et al. An extremely high resolution flat field type slit less soft x-ray emission spectrometer has been designed and constructed for the long undulator beamline BL07LSU in SPring-8. By optimizing the ruling parameters of two cylindrical gratings, a high energy resolution DeltaE < 100 meV and/or an E/DeltaE ... [Rev. Sci. Instrum. 83, 013116 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

Cutoff probe using Fourier analysis for electron density measurement

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

Byung-Keun Na, Kwang-Ho You, Dae-Woong Kim, Hong-Young Chang, Shin-Jae You et al. This paper proposes a new method for cutoff probe using a nanosecond impulse generator and an oscilloscope, instead of a network analyzer. The nanosecond impulse generator supplies a radiating signal of broadband frequency spectrum simultaneously without frequency sweeping, while frequency sweeping ... [Rev. Sci. Instrum. 83, 013510 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

Using high-intensity laser-generated energetic protons to radiograph directly driven implosions

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

A. B. Zylstra, C. K. Li, H. G. Rinderknecht, F. H. Seguin, R. D. Petrasso et al. The recent development of petawatt-class lasers with kilojoule-picosecond pulses, such as OMEGA EP [L. Waxer et al., Opt. Photonics News 16, 30 (2005)], provides a new diagnostic capability to study inertial-confinement-fusion (ICF) and high-energy-density (HED) plasmas. Specifically, petawatt OMEGA ... [Rev. Sci. Instrum. 83, 013511 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

Simple electronics for inertial and Pan-type piezoelectric positioners used in scanning probe microscopes

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

We describe a new type of circuit designed for driving piezoelectric positioners that rely on the stick-slip phenomenon. The circuit can be used for inertial positioners that have only one piezoelectric element (or multiple elements that are moved simultaneously) or for designs using a sequential mo ... [Rev. Sci. Instrum. 83, 013708 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

Online in situ x-ray diffraction setup for structural modification studies during swift heavy ion irradiation

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

We present an x-ray diffractometer called ALIX (Analyse en Ligne sur IRRSUD par diffraction de rayons X), which has been set up at the low-energy beamline (IRRadi ... [Rev. Sci. Instrum. 83, 013902 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

A versatile cantilever beam magnetometer for ex situ characterization of magnetic materials

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

R. Adhikari, A. Sarkar, and A. K. Das We have designed, fabricated, and made operational an ex situ cantilever beam magnetometer (CBM), which is versatile in the sense that it can measure most of the magnetic properties of a material in all probable shapes. The working principle of a CBM is discussed considering the magnetic torque into ... [Rev. Sci. Instrum. 83, 013903 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

An in situ approach to study trace element partitioning in the laser heated diamond anvil cell

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

S. Petitgirard, M. Borchert, D. Andrault, K. Appel, M. Mezouar et al. Data on partitioning behavior of elements between different phases at in situ conditions are crucial for the understanding of element mobility especially for geochemical studies. Here, we present results of in situ partitioning of trace elements (Zr, Pd, and Ru) between silicate and iron melts, up t ... [Rev. Sci. Instrum. 83, 013904 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

Creating a high temperature environment at high pressure in a gas piston cylinder apparatus

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

P. C. Burnley and I. C. Getting An internal heater capable of 1400 K has been developed for use with a gas piston cylinder apparatus capable of achieving in excess of 3 GPa with an argon pressure medium. The heated gas piston cylinder produces a truly hydrostatic environment for samples up to 3 mm in diameter and 8 mm in length. T ... [Rev. Sci. Instrum. 83, 014501 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

Omni-directional selective shielding material based on amorphous glass coated microwires

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

G. Ababei, H. Chiriac, V. David, V. Dafinescu, and I. Nica The shielding effectiveness of the omni-directional selective shielding material based on CoFe-glass coated amorphous wires in 0.8 GHz-3 GHz microwave frequency range is investigated. The measurements were done in a controlled medium using a TEM cell and in the free space using horn antennas, respec ... [Rev. Sci. Instrum. 83, 014701 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

Multiple pulse-heating experiments with different current to determine total emissivity, heat capacity, and electrical resistivity of electrically conductive materials at high temperatures

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

Hiromichi Watanabe and Yuichiro Yamashita A modified pulse-heating method is proposed to improve the accuracy of measurement of the hemispherical total emissivity, specific heat capacity, and electrical resistivity of electrically conductive materials at high temperatures. The proposed method is based on the analysis of a series of rapid re ... [Rev. Sci. Instrum. 83, 014904 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

Dynamic thermomechanical response of bimaterial microcantilevers to periodic heating by infrared radiation

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

Beomjin Kwon, Matthew Rosenberger, Rohit Bhargava, David G. Cahill, and William P. King This paper investigates the dynamic thermomechanical response of bimaterial microcantilevers to periodic heating by an infrared laser operating at a wavelenegth of 10.35 [mu]m. A model relates incident radiation, heat transfer, temperature distribution in the cantilever, and thermal expansion mismat ... [Rev. Sci. Instrum. 83, 015003 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

Design and operation of the wide angular-range chopper spectrometer ARCS at the Spallation Neutron Source

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

D. L. Abernathy, M. B. Stone, M. J. Loguillo, M. S. Lucas, O. Delaire et al. The wide angular-range chopper spectrometer ARCS at the Spallation Neutron Source (SNS) is optimized to provide a high neutron flux at the sample position with a large solid angle of detector coverage. The instrument incorporates modern neutron instrumentation, such as an elliptically focused neutro ... [Rev. Sci. Instrum. 83, 015114 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

Design and application of a new series of gallbladder endoscopes that facilitate gallstone removal without gallbladder excision

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

Tie Chiao, Wan-Chao Huang, Xiao-Bing Luo, and Yang-De Zhang In recent years, some Chinese doctors have proposed a new concept, gallstone removal without gallbladder excision, along with transition of the medical model. As there is no specialized endoscope for gallstone removal without gallbladder excision, we designed and produced a new series of gallbladder ... [Rev. Sci. Instrum. 83, 015115 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

A tapered undulator experiment at the ELBE far infrared hybrid-resonator oscillator free electron laser

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

V. Asgekar, U. Lehnert, and P. Michel A tapered undulator experiment was carried out at the ELBE far-infrared free electron laser (FEL). The oscillator FEL makes use of a hybrid optical resonator. The main motivation was to see whether the presence of a dispersive medium in the form of a waveguide in the resonator has any effect on the ... [Rev. Sci. Instrum. 83, 015116 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

Design, construction, and calibration of an isothermal titration calorimeter and its application in the study of the adsorption of phenolic compounds

Review of Scientific Instruments — Tue, 31 Jan 2012 19:51:02 +0100

Juan Carlos Moreno-Pirajan and Liliana Giraldo An isothermal calorimetric titration was designed and built, and some of the results obtained are presented here. For this purpose, a Calvet heat-conducting microcalorimeter was developed and connected to a titration unit built for this experiment to record titration thermograms. The microcalorimete ... [Rev. Sci. Instrum. 83, 015117 (2012)] published Tue Jan 31, 2012. (Source: Review of Scientific Instruments)

Time-resolved one-dimensional detection of x-ray scattering in pulsed magnetic fields

Review of Scientific Instruments — Sat, 28 Jan 2012 01:37:39 +0100

Zahirul Islam, Jacob P. C. Ruff, Kate A. Ross, Hiroyuki Nojiri, and Bruce D. Gaulin We have developed an application of a one-dimensional micro-strip detector for capturing x-ray diffraction data in pulsed magnetic fields. This detector consists of a large array of 50 [mu]m-wide Si strips with a full-frame read out at 20 kHz. Its use substantially improves data-collection efficienc ... [Rev. Sci. Instrum. 83, 013113 (2012)] published Wed Jan 25, 2012. (Source: Review of Scientific Instruments)

Improving metastable impact electron spectroscopy and ultraviolet photoelectron spectroscopy signals by means of a modified time-of-flight separation

Review of Scientific Instruments — Sat, 28 Jan 2012 01:37:39 +0100

Florian M. Spirkl, Sebastian Kunz, Florian F. Schweinberger, Adrian N. Farnbacher, Richard Schroter et al. The separation of ultraviolet photoelectron spectroscopy (UPS) and metastable impact electron spectroscopy (MIES) is usually performed by a time-of-flight (ToF) separation using pre-set ToF for both types of signal. In this work, we present a new, improved ex situ signal separation method for the se ... [Rev. Sci. Instrum. 83, 013114 (2012)] published Wed Jan 25, 2012. (Source: Review of Scientific Instruments)

In situ calibration of rotating sensor coils for magnet testing

Review of Scientific Instruments — Sat, 28 Jan 2012 01:37:39 +0100

P. Arpaia, M. Buzio, G. Golluccio, and L. Walckiers An in situ procedure for calibrating equivalent magnetic area and rotation radius of rotating coils is proposed for testing accelerator magnets shorter than the measuring coil. The procedure exploits measurements of magnetic field and mechanical displacement inside a reference quadrupole magnet. In ... [Rev. Sci. Instrum. 83, 013306 (2012)] published Wed Jan 25, 2012. (Source: Review of Scientific Instruments)

Increased bandwidth for dielectric spectroscopy of proteins through electrode surface preparation

Review of Scientific Instruments — Sat, 28 Jan 2012 01:37:39 +0100

Brett L. Mellor, Efren Cruz Cortes, Shiul Khadka, and Brian A. Mazzeo Dielectric spectroscopy measurements of liquids are often limited by electrode polarization. The influence of surface polishing and deposition of the conducting polymer polypyrrole/polystyrenesulfonate (PPy/PSS) on the polarization impedance is investigated. A quantitative description of the electro ... [Rev. Sci. Instrum. 83, 015110 (2012)] published Wed Jan 25, 2012. (Source: Review of Scientific Instruments)

High-speed force load in force measurement in liquid using scanning probe microscope

Review of Scientific Instruments — Sat, 28 Jan 2012 01:37:39 +0100

This article presents an inversion-based iterative feedforward-feedback (II-FF/FB) approach to achieve high-speed force load in force measurement of soft materials in liquid using scanning probe microscope (SPM). SPM force measurement under liquid environment is needed to interrogate a wide range of ... [Rev. Sci. Instrum. 83, 013707 (2012)] published Thu Jan 26, 2012. (Source: Review of Scientific Instruments)

Overcoming the influence of the coupling fluid in photopyroelectric measurements of solid samples

Review of Scientific Instruments — Sat, 28 Jan 2012 01:37:39 +0100

Agustin Salazar and Alberto Oleaga The thermal diffusivity of solid samples is systematically underestimated in a photopyroelectric technique used in the standard back configuration due to the presence of the coupling fluid between sample and detector. In this work, we propose a new method to overcome the undesired effect of the coup ... [Rev. Sci. Instrum. 83, 014903 (2012)] published Thu Jan 26, 2012. (Source: Review of Scientific Instruments)

A high accuracy femto-/picosecond laser damage test facility dedicated to the study of optical thin films

Review of Scientific Instruments — Wed, 25 Jan 2012 02:29:09 +0100

B. Mangote, L. Gallais, M. Zerrad, F. Lemarchand, L. H. Gao et al. A laser damage test facility delivering pulses from 100 fs to 3 ps and designed to operate at 1030 nm is presented. The different details of its implementation and performances are given. The originality of this system relies the online damage detection system based on Nomarski microscopy and the us ... [Rev. Sci. Instrum. 83, 013109 (2012)] published Mon Jan 23, 2012. (Source: Review of Scientific Instruments)

Total internal reflection fluorescence microscopy imaging-guided confocal single-molecule fluorescence spectroscopy

Review of Scientific Instruments — Wed, 25 Jan 2012 02:29:09 +0100

Desheng Zheng, Leonora Kaldaras, and H. Peter Lu We have developed an integrated spectroscopy system combining total internal reflection fluorescence microscopy imaging with confocal single-molecule fluorescence spectroscopy for two-dimensional interfaces. This spectroscopy approach is capable of both multiple molecules simultaneously sampling and ... [Rev. Sci. Instrum. 83, 013110 (2012)] published Mon Jan 23, 2012. (Source: Review of Scientific Instruments)

Two beam surface fluctuation specular reflection spectroscopy

Review of Scientific Instruments — Wed, 25 Jan 2012 02:29:09 +0100

Allan Raudsepp, Christian Fretigny, Francois Lequeux, and Laurence Talini In surface fluctuation specular reflection spectroscopy (SFSRS) deflections of a specularly reflected laser beam are used to characterize thermally excited surface waves. Here we report on a new two beam version of SFSRS in which the deflections of two reflected laser beams from separate locations o ... [Rev. Sci. Instrum. 83, 013111 (2012)] published Mon Jan 23, 2012. (Source: Review of Scientific Instruments)

Beam emission spectroscopy turbulence imaging system for the MAST spherical tokamak

Review of Scientific Instruments — Wed, 25 Jan 2012 02:29:09 +0100

A. R. Field, D. Dunai, R. Gaffka, Y.-c. Ghim, I. Kiss et al. A new beam emission spectroscopy turbulence imaging system has recently been installed onto the MAST spherical tokamak. The system utilises a high-throughput, direct coupled imaging optics, and a single large interference filter for collection of the Doppler shifted D emission from the ~2 MW heating ... [Rev. Sci. Instrum. 83, 013508 (2012)] published Mon Jan 23, 2012. (Source: Review of Scientific Instruments)

Invited Article: Refractive index matched scanning of dense granular materials

Review of Scientific Instruments — Wed, 25 Jan 2012 02:29:09 +0100

Joshua A. Dijksman, Frank Rietz, Kinga A. Lőrincz, Martin van Hecke, and Wolfgang Losert We review an experimental method that allows to probe the time-dependent structure of fully three-dimensional densely packed granular materials and suspensions by means of particle recognition. The method relies on submersing a granular medium in a refractive index matched fluid. This makes the resu ... [Rev. Sci. Instrum. 83, 011301 (2012)] published Tue Jan 24, 2012. (Source: Review of Scientific Instruments)

One-shot spectrometer for several elements using an integrated conical crystal analyzer

Review of Scientific Instruments — Wed, 25 Jan 2012 02:29:09 +0100

Kohei Morishita, Kouichi Hayashi, and Kazuo Nakajima Time-resolved x-ray spectrometry using an ultrastrong x-ray source such as an x-ray free electron laser is one of the new trends in the field of x-ray physics. To achieve such time-resolved measurement, the development of an one-shot spectrometer with a wide wavelength range, high efficiency, and go ... [Rev. Sci. Instrum. 83, 013112 (2012)] published Tue Jan 24, 2012. (Source: Review of Scientific Instruments)

A dual-channel, focusing x-ray spectrograph with uniform dispersion for Z pinch plasmas measurement

Review of Scientific Instruments — Sun, 22 Jan 2012 01:22:17 +0100

Qingguo Yang, Zeren Li, Guanhua Chen, Yan Ye, Xianbin Huang et al. A dual-channel, focusing x-ray spectrograph with uniform dispersion (i.e., the linear dispersion of this spectrograph is a constant) is described for measuring the x-ray spectra emission from the hot, dense Al Z pinch plasmas. The spectrograph uses double uniform-dispersed crystals (e.g., a Quartz 1 ... [Rev. Sci. Instrum. 83, 013106 (2012)] published Thu Jan 19, 2012. (Source: Review of Scientific Instruments)

Rapid measurement of a high step microstructure with 90 degrees steep sidewall

Review of Scientific Instruments — Sun, 22 Jan 2012 01:22:17 +0100

Bing-Feng Ju, Yuan-Liu Chen, Wei Zhang, and F. Z. Fang A prototype STM system with high aspect ratio measurement capability is developed to fulfill accurate profile measurement of a high step microstructure with 90 degrees steep sidewall. Distinguished from the traditional STM, the new system consists of a long range piezoelectric (PZT) actuator with f ... [Rev. Sci. Instrum. 83, 013706 (2012)] published Thu Jan 19, 2012. (Source: Review of Scientific Instruments)

Improving the precision of Hall effect measurements using a single-crystal copper probe

Review of Scientific Instruments — Sun, 22 Jan 2012 01:22:17 +0100

Su-Young Cha, Jong Moon Shin, Su Jae Kim, Sang Eon Park, Chae Ryong Cho et al. The circuitry and components of a Hall measurement kit were replaced with single-crystal copper (SCC) wires and parts prepared by a novel wire fabrication process. This process preserved the grain-free structure of SCC grown by the Czochralski method. The new kit was used to determine, with greatly ... [Rev. Sci. Instrum. 83, 013901 (2012)] published Thu Jan 19, 2012. (Source: Review of Scientific Instruments)

An optically pumped XeF(C-A) laser with repetitive rate of 10 Hz

Review of Scientific Instruments — Sun, 22 Jan 2012 01:22:17 +0100

Yu Li, Ma Lian-ying, Yi Ai-ping, Huang Chao, Zhu Feng et al. A novel XeF(C-A) laser which can be operated in repetition mode has been developed based on surface discharge optical pumping technique. Its maximum repetitive rate is up to 10 Hz. The influence of repetitive rate and gas flow rate on the stability of output energy is studied and the main factor whi ... [Rev. Sci. Instrum. 83, 013107 (2012)] published Fri Jan 20, 2012. (Source: Review of Scientific Instruments)

Positive/negative ion velocity mapping apparatus for electron-molecule reactions

Review of Scientific Instruments — Sun, 22 Jan 2012 01:22:17 +0100

Bin Wu, Lei Xia, Hong-Kai Li, Xian-Jin Zeng, and Shan Xi Tian In molecular dissociative ionization by electron collisions and dissociative electron attachment to molecule, the respective positively and negatively charged fragments are the important products. A compact ion velocity mapping apparatus is developed for the angular distribution measurements of the ... [Rev. Sci. Instrum. 83, 013108 (2012)] published Fri Jan 20, 2012. (Source: Review of Scientific Instruments)

A new experimental setup designed for the investigation of irradiation of nanosystems in the gas phase: A high intensity mass-and-energy selected cluster beam

Review of Scientific Instruments — Sun, 22 Jan 2012 01:22:17 +0100

G. Bruny, S. Eden, S. Feil, R. Fillol, K. El Farkh et al. DIAM (Dispositif d'Irradiation d'Agregats Moleculaires) is a new experimental setup devoted to investigate processes induced by irradiation at the nanoscale. The DIAM apparatus is based on a combination of techniques including a particle beam from high-energy physics, a cluster source from molecular ... [Rev. Sci. Instrum. 83, 013305 (2012)] published Fri Jan 20, 2012. (Source: Review of Scientific Instruments)

Note: Bending compliances of generalized symmetric notch flexure hinges

Review of Scientific Instruments — Sun, 22 Jan 2012 01:22:17 +0100

Nicolae Lobontiu The bending compliances of generalized notch flexure hinges with transverse or transverse-and-axial symmetry are studied in two particular reference frames. For an end-point reference frame, the cross compliance and the rotary compliance are proportional. When the reference frame is placed at the fl ... [Rev. Sci. Instrum. 83, 016107 (2012)] published Fri Jan 20, 2012. (Source: Review of Scientific Instruments)

New Products

Review of Scientific Instruments — Sun, 22 Jan 2012 01:22:17 +0100

Andreas Mandelis Abstract not available. [Rev. Sci. Instrum. 83, 019501 (2012)] published Fri Jan 20, 2012. (Source: Review of Scientific Instruments)

Circular multilayer zone plate for high-energy x-ray nano-imaging

Review of Scientific Instruments — Thu, 19 Jan 2012 02:04:40 +0100

Takahisa Koyama, Hidekazu Takano, Shigeki Konishi, Takuya Tsuji, Hisataka Takenaka et al. A circular multilayer zone plate (MZP) was fabricated and its focusing performance was evaluated using 20-keV x-rays. MoSi and Si layers were alternately deposited by DC magnetron sputtering on a wire core; all the interfaces satisfied the Fresnel zone condition. The measured line spread function wa ... [Rev. Sci. Instrum. 83, 013705 (2012)] published Tue Jan 17, 2012. (Source: Review of Scientific Instruments)

Angular measurement of acoustic reflection coefficients by the inversion of V(z, t) data with high frequency time-resolved acoustic microscopy

Review of Scientific Instruments — Thu, 19 Jan 2012 02:04:40 +0100

Jian Chen, Xiaolong Bai, Keji Yang, and Bing-Feng Ju For inspection of mechanical properties and integrity of critical components such as integrated circuits or composite materials by acoustic methodology, it is imperative to evaluate their acoustic reflection coefficients, which are in close correlation with the elastic properties, thickness, density ... [Rev. Sci. Instrum. 83, 014901 (2012)] published Tue Jan 17, 2012. (Source: Review of Scientific Instruments)

Note: Thermal conductivity measurement of individual poly(ether ketone)/carbon nanotube fibers using a steady-state dc thermal bridge method

Review of Scientific Instruments — Thu, 19 Jan 2012 02:04:40 +0100

Jaeyun Moon, Keith Weaver, Bo Feng, Han Gi Chae, Satish Kumar et al. Customized engineered fibers are currently being used extensively in the aerospace and automobile industries due to the ability to design in specific engineering characteristics. Understanding the thermal conductivity of these new fibers is critical for thermal management and design optimization. In ... [Rev. Sci. Instrum. 83, 016103 (2012)] published Tue Jan 17, 2012. (Source: Review of Scientific Instruments)

Spatial resolution of the JET Thomson scattering system

Review of Scientific Instruments — Thu, 19 Jan 2012 02:04:40 +0100

L. Frassinetti, M. N. A. Beurskens, R. Scannell, T. H. Osborne, J. Flanagan et al. JET-EFDA Contributors The instrument function of the high resolution Thomson scattering (HRTS) diagnostic in the Joint European Torus (JET) has been calculated for use in improved pedestal profile analysis. The full width at half maximum (FWHM) of the spatial instrument response is (22 1) mm for the original HRTS system ... [Rev. Sci. Instrum. 83, 013506 (2012)] published Wed Jan 18, 2012. (Source: Review of Scientific Instruments)

Design and performance of the collective Thomson scattering receiver at ASDEX Upgrade

Review of Scientific Instruments — Thu, 19 Jan 2012 02:04:40 +0100

V. Furtula, M. Salewski, F. Leipold, P. K. Michelsen, S. B. Korsholm et al. Here we present the design of the fast-ion collective Thomson scattering receiver for millimeter wave radiation installed at ASDEX Upgrade, a tokamak for fusion plasma experiments. The receiver can detect spectral power densities of a few eV against the electron cyclotron emission background on the ... [Rev. Sci. Instrum. 83, 013507 (2012)] published Wed Jan 18, 2012. (Source: Review of Scientific Instruments)

A contactless methodology of picking up micro-particles from rigid surfaces by acoustic radiation force

Review of Scientific Instruments — Thu, 19 Jan 2012 02:04:40 +0100

Kun Jia, Keji Yang, Zongwei Fan, and Bing-Feng Ju Controlled movement and pick up of small object from a rigid surface is a primary challenge in many applications. In this paper, a contactless methodology of picking up micro-particles within deionized water from rigid surfaces by acoustic radiation force is presented. In order to achieve this, an a ... [Rev. Sci. Instrum. 83, 014902 (2012)] published Wed Jan 18, 2012. (Source: Review of Scientific Instruments)

Note: Voltage and intensity dependence of the saturation curves of free-air ionization chambers irradiated with chopped synchrotron radiation beams

Review of Scientific Instruments — Thu, 19 Jan 2012 02:04:40 +0100

Nobuteru Nariyama Current saturation characteristics of free-air ionization chambers with electrode gaps of 4.2 and 8.4 mm were investigated using pulsed photon beam obtained by periodically interrupting synchrotron radiation beams with a chopper. Pulsed photon beams of 10 and 15 keV with pulse duration of 2.5 [mu]s ... [Rev. Sci. Instrum. 83, 016104 (2012)] published Wed Jan 18, 2012. (Source: Review of Scientific Instruments)

Note: Phase sensitive detection of photoluminescence with Fourier transform spectroscopy

Review of Scientific Instruments — Thu, 19 Jan 2012 02:04:40 +0100

B. Ullrich and G. J. Brown Although known for more than twenty years, there is limited information in the literature regarding the experimental parameters of lock-in based phase sensitive emission detection in conjunction with Fourier spectrometers. For this technique also known as double modulation spectroscopy we present ... [Rev. Sci. Instrum. 83, 016105 (2012)] published Wed Jan 18, 2012. (Source: Review of Scientific Instruments)

Note: Development of target changeable palm-top pyroelectric x-ray tube

Review of Scientific Instruments — Thu, 19 Jan 2012 02:04:40 +0100

Susumu Imashuku and Jun Kawai A target changeable palm-top size x-ray tube was realized using pyroelectric crystal and detachable vacuum flanges. The target metals can be exchanged easily by attaching them on the brass stage with carbon tape. When silver and titanium palates (area: 10 mm) were used as targets, silver Lalpha and ... [Rev. Sci. Instrum. 83, 016106 (2012)] published Wed Jan 18, 2012. (Source: Review of Scientific Instruments)

Fully programmable single-photon detection module for InGaAs/InP single-photon avalanche diodes with clean and sub-nanosecond gating transitions

Review of Scientific Instruments — Mon, 16 Jan 2012 03:36:14 +0100

We present the design and characterization of a modern near-infrared photon counting module, able to exploit the best performance of InGaAs/InP single-photon avalanche diodes for the detection of fast and faint optical signals up to 1.7 [mu]m. Such instrument is suitable for many applications, thank ... [Rev. Sci. Instrum. 83, 013104 (2012)] published Tue Jan 10, 2012. (Source: Review of Scientific Instruments)

A very low energy compact electron beam ion trap for spectroscopic research in Shanghai

Review of Scientific Instruments — Mon, 16 Jan 2012 03:36:14 +0100

J. Xiao, Z. Fei, Y. Yang, X. Jin, D. Lu et al. In this paper, a new compact low energy electron beam ion trap, SH-PermEBIT, is reported. This electron beam ion trap (EBIT) can operate in the electron energy range of 605000 eV, with a current density of up to 100 A/cm. The low energy limit of this machine sets the record among the reported works ... [Rev. Sci. Instrum. 83, 013303 (2012)] published Tue Jan 10, 2012. (Source: Review of Scientific Instruments)

A new detector for mass spectrometry: Direct detection of low energy ions using a multi-pixel photon counter

Review of Scientific Instruments — Mon, 16 Jan 2012 03:36:14 +0100

Edward S. Wilman, Sara H. Gardiner, Andrei Nomerotski, Renato Turchetta, Mark Brouard et al. A new type of ion detector for mass spectrometry and general detection of low energy ions is presented. The detector consists of a scintillator optically coupled to a single-photon avalanche photodiode (SPAD) array. A prototype sensor has been constructed from a LYSO (LuYSiO(Ce)) scintillator crysta ... [Rev. Sci. Instrum. 83, 013304 (2012)] published Tue Jan 10, 2012. (Source: Review of Scientific Instruments)

A high dynamic range data acquisition system for a solid-state electron electric dipole moment experiment

Review of Scientific Instruments — Mon, 16 Jan 2012 03:36:14 +0100

Young Jin Kim, Brandon Kunkler, Chen-Yu Liu, and Gerard Visser We have built a high precision (24-bit) data acquisition (DAQ) system capable of simultaneously sampling eight input channels for the measurement of the electric dipole moment of the electron. The DAQ system consists of two main components: a master board for DAQ control and eight individual analog- ... [Rev. Sci. Instrum. 83, 013502 (2012)] published Tue Jan 10, 2012. (Source: Review of Scientific Instruments)

High pressure rheometer for in situ formation and characterization of methane hydrates

Review of Scientific Instruments — Mon, 16 Jan 2012 03:36:14 +0100

We present a novel setup for a high pressure rheometer operating with concentric cylinders geometry for in situ studies of hydrate formation and rheological characterization. The apparatus uses an external high pressure mixing cell to saturate water-in-oil emulsions with methane gas. The capability ... [Rev. Sci. Instrum. 83, 015106 (2012)] published Tue Jan 10, 2012. (Source: Review of Scientific Instruments)