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2766 records returned

The photon analysis, delivery, and reduction system at the FERMI@Elettra free electron laser user facilityemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
We report the layout of the photon ... [Rev. Sci. Instrum. 80, 113110 (2009)] published Fri Nov 20, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 21, 2009 Category: Physics Source Type: journals

Effect of the change in the load resistance on the high voltage pulse transformer of the intense electron-beam acceleratorsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Xin-bing Cheng, Jin-liang Liu, Bao-liang Qian, Yu Zhang, and Hong-bo Zhang A high voltage pulse transformer (HVPT) is usually used as a charging device for the pulse forming line (PFL) of intense electron-beam accelerators (IEBAs). Insulation of the HVPT is one of the important factors that restrict the development of the HVPT. Until now, considerable effort has been focus ... [Rev. Sci. Instrum. 80, 115110 (2009)] published Fri Nov 20, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 21, 2009 Category: Physics Source Type: journals

Successive large perturbation method for the elimination of initial value dependence in I-V curve fittingemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Jinhua Cai, Norifusa Satoh, Masatoshi Yanagida, and Liyuan Han A successive large perturbation method (SLPM) is proposed to resolve the problem of initial value dependence in the numerical least-square fitting for the extraction of I-V parameters in solar cells. In this method a large perturbation is applied onto certain a parameter before next turn of Newton-l ... [Rev. Sci. Instrum. 80, 115111 (2009)] published Fri Nov 20, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 21, 2009 Category: Physics Source Type: journals

Hyperfine spectroscopy of the 1s2p transition of Aremail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
We report on the first experimental determination of the hyperfine structure of the 1s2p transition in Ar. We give a detailed description of the sample preparation, spectroscopy cell cleaning, and spectroscopic setup. The resulting set of parameters consists of the hyperfine constants of the levels ... [Rev. Sci. Instrum. 80, 113109 (2009)] published Thu Nov 19, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 20, 2009 Category: Physics Source Type: journals

Design, construction, and calibration of a three-axis, high-frequency magnetic probe (B-dot probe) as a diagnostic for exploding plasmasemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
E. T. Everson, P. Pribyl, C. G. Constantin, A. Zylstra, D. Schaeffer et al. A three-axis, 2.5 mm overall diameter differential magnetic probe (also known as B-dot probe) is discussed in detail from its design and construction to its calibration and use as diagnostic of fast transient effects in exploding plasmas. A design and construction method is presented as a means to r ... [Rev. Sci. Instrum. 80, 113505 (2009)] published Wed Nov 18, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 19, 2009 Category: Physics Source Type: journals

Determination of perpendicular magnetic anisotropy in ultrathin ferromagnetic films by extraordinary Hall voltage measurementemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Kyoung-Woong Moon, Jae-Chul Lee, Sug-Bong Choe, and Kyung-Ho Shin A magnetometric technique for detecting the magnetic anisotropy field of ferromagnetic films is described. The technique is based on the extraordinary Hall voltage measurement with rotating the film under an external magnetic field. By analyzing the angle-dependent Hall voltage based on the StonerWo ... [Rev. Sci. Instrum. 80, 113904 (2009)] published Mon Nov 16, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 18, 2009 Category: Physics Source Type: journals

Erratum: High-repetition-rate optical delay line using a micromirror array and galvanometer mirror for a terahertz system [Rev. Sci. Instrum. 80, 076104 (2009)]email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Hideaki Kitahara, Masahiko Tani, and Masanori Hangyo Abstract not available. [Rev. Sci. Instrum. 80, 119901 (2009)] published Mon Nov 16, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 18, 2009 Category: Physics Source Type: journals

Measurement system of the refractive power of spherical and sphero-cylindrical lenses with the magnification ellipse fitting methodemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Wooseok Ko and Soohyun Kim This paper proposes a new measurement system for measuring the refractive power of spherical and sphero-cylindrical lenses with a six-point light source, which is composed of a light emitting diode and a six-hole pattern aperture, and magnification ellipse fitting method. The position of the six lig ... [Rev. Sci. Instrum. 80, 115109 (2009)] published Mon Nov 16, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 18, 2009 Category: Physics Source Type: journals

Demonstration of a highly coherent 13.9 nm x-ray laser from a silver tape targetemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Masaharu Nishikino, Yoshihiro Ochi, Noboru Hasegawa, Tetsuya Kawachi, Hiroshi Yamatani et al. A highly coherent 13.9 nm x-ray laser (XRL) is generated under an oscillator-amplifier configuration using a new tape target system and a driver laser system with a 0.1 Hz repetition rate. The output energy is comparable to the XRL generated with a silver-deposited slab target, and the pointing stab ... [Rev. Sci. Instrum. 80, 116102 (2009)] published Mon Nov 16, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 18, 2009 Category: Physics Source Type: journals

A new dual-purpose ultrahigh vacuum infrared spectroscopy apparatus optimized for grazing-incidence reflection as well as for transmission geometriesemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Y. Wang, A. Glenz, M. Muhler, and Ch. Woll A newly designed ultrahigh vacuum (UHV) infrared spectroscopy apparatus dedicated to the spectroscopic characterization of oxides, singles crystals as well as powders, is described. It combines a state-of-the-art vacuum Fourier transform infrared (FTIR) spectrometer (Bruker, VERTEX 80v) with a novel ... [Rev. Sci. Instrum. 80, 113108 (2009)] published Fri Nov 13, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 14, 2009 Category: Physics Source Type: journals

Pr-doped fluoro-oxide lithium glass as scintillator for nuclear fusion diagnosticsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Yasunobu Arikawa, Kohei Yamanoi, Tomoharu Nakazato, Elmer Surat Estacio, Toshihiko Shimizu et al. Experimental results are presented on the neutron scintillating properties of a custom-designed Pr3+(praseodymium)-doped lithium (Li) glass. Luminescence was observed at 278 nm wavelength, originating from the 5d-4f transition. Time-resolved measurements yielded about 20 ns decay times for ultraviol ... [Rev. Sci. Instrum. 80, 113504 (2009)] published Fri Nov 13, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 14, 2009 Category: Physics Source Type: journals

A gas-tight Cu Kalpha x-ray transparent reaction chamber for high-temperature x-ray diffraction analyses of halide gas/solid reactionsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Samuel Shian and Kenneth H. Sandhage An externally heated, x-ray transparent reaction chamber has been developed to enable the dynamic high temperature x-ray diffraction (HTXRD) analysis of a gas/solid [TiF(g)/SiO(s)] reaction involving a halide gas reactant formed at elevated temperatures (up to 350 degrees C) from a condensed source ... [Rev. Sci. Instrum. 80, 115108 (2009)] published Fri Nov 13, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 14, 2009 Category: Physics Source Type: journals

A novel capacitance sensor for fireside corrosion measurementemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Heng Ban and Zuoping Li Fireside corrosion in coal-fired power plants is a leading mechanism for boiler tube failures. Online monitoring of fireside corrosion can provide timely data to plant operators for mitigation implementation. This paper presents a novel sensor concept for measuring metal loss based on electrical cap ... [Rev. Sci. Instrum. 80, 115107 (2009)] published Thu Nov 12, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 13, 2009 Category: Physics Source Type: journals

High resolution miniature dilatometer based on an atomic force microscope piezocantileveremail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
J.-H. Park, D. Graf, T. P. Murphy, G. M. Schmiedeshoff, and S. W. Tozer Thermal expansion, or dilation, is closely related to the specific heat, and provides useful information regarding material properties. The accurate measurement of dilation in confined spaces coupled with other limiting experimental environments such as low temperatures and rapidly changing high mag ... [Rev. Sci. Instrum. 80, 116101 (2009)] published Thu Nov 12, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 13, 2009 Category: Physics Source Type: journals

Modification of a commercial cavity ring-down spectroscopy NO detector for enhanced sensitivityemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Patricia Castellanos, Winston T. Luke, Paul Kelley, Jeffrey W. Stehr, Sheryl H. Ehrman et al. Nitrogen dioxide (NO) plays a central role in atmospheric chemistry, air pollution, and biogeochemical cycles. Many analytical techniques have been developed to detect NO, but only chemiluminescence-based instruments are commonly, commercially available. There remains a need for a fast, light, and s ... [Rev. Sci. Instrum. 80, 113107 (2009)] published Wed Nov 11, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 12, 2009 Category: Physics Source Type: journals

Analog-to-digital converters nonlinear errors correction in thermal diagnostics for the laser interferometer space antenna missionemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
J. Sanjuan, A. Lobo, and J. Ramos-Castro Low-noise temperature measurements at frequencies in the millihertz range are required in the laser interferometer space antenna (LISA) and LISA PathFinder missions. The required temperature stability for LISA is around 10 [mu]K Hz at frequencies down to 0.1 mHz. In this paper we focus on the ident ... [Rev. Sci. Instrum. 80, 114901 (2009)] published Wed Nov 11, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 12, 2009 Category: Physics Source Type: journals

Compact vibration isolation and suspension for Australian International Gravitational Observatory: Performance in a 72 m Fabry Perot cavityemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
P. Barriga, J. C. Dumas, A. A. Woolley, C. Zhao, and D. G. Blair This paper describes the first demonstration of vibration isolation and suspension systems, which have been developed with view to application in the proposed Australian International Gravitational Observatory. In order to achieve optimal performance at low frequencies new components and techniques ... [Rev. Sci. Instrum. 80, 114501 (2009)] published Wed Nov 11, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 12, 2009 Category: Physics Source Type: journals

Metastable helium density probe for remote plasmasemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Naoto Miura and Jeffrey Hopwood Helium metastable atom density was spatially determined by a modified electrostatic probe in a remote plasma. The probe structure was similar to that of a guard ring probe. Opposite polarity voltages were applied to the inner probe and the guard ring to shield both electrons and ions from the vicini ... [Rev. Sci. Instrum. 80, 113502 (2009)] published Wed Nov 11, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 12, 2009 Category: Physics Source Type: journals

Electrically detected magnetic resonance using radio-frequency reflectometryemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
H. Huebl, R. P. Starrett, D. R. McCamey, A. J. Ferguson, and L. H. Willems van Beveren The authors demonstrate readout of electrically detected magnetic resonance at radio frequencies by means of a LCR tank circuit. Applied to a silicon field-effect transistor at millikelvin temperatures, this method shows a 25-fold increased signal-to-noise ratio of the conduction band electron spin ... [Rev. Sci. Instrum. 80, 114705 (2009)] published Wed Nov 11, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 12, 2009 Category: Physics Source Type: journals

Compact vibration isolation and suspension for Australian International Gravitational Observatory: Local control systememail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Jean-Charles Dumas, Pablo Barriga, Chunnong Zhao, Li Ju, and David G. Blair High performance vibration isolators are required for ground based gravitational wave detectors. To attain very high performance at low frequencies we have developed multistage isolators for the proposed Australian International Gravitational Observatory detector in Australia. New concepts in vibrat ... [Rev. Sci. Instrum. 80, 114502 (2009)] published Wed Nov 11, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 12, 2009 Category: Physics Source Type: journals

Soft x-ray virtual diagnostics for tokamak simulationsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
J. S. Kim, L. Zhao, I. N. Bogatu, Y. In, A. Turnbull et al. The numerical toolset, FAR-TECH Virtual Diagnostic Utility, for generating virtual experimental data based on theoretical models and comparing it with experimental data, has been developed for soft x-ray diagnostics on DIII-D. The virtual (or synthetic) soft x-ray signals for a sample DIII-D dischar ... [Rev. Sci. Instrum. 80, 113503 (2009)] published Wed Nov 11, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 12, 2009 Category: Physics Source Type: journals

Direct high-resolution ion beam-profile imaging using a position-sensitive Faraday cup arrayemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Lauri Panitzsch, Michael Stalder, and Robert F. Wimmer-Schweingruber Ion sources have wide-spread use in a multitude of applications. For many, an accurate knowledge, or better, an accurate imaging, of the beam profile and intensity is an important criterion. We are developing an ion source to calibrate instruments for space-based measurements of solar wind and supra ... [Rev. Sci. Instrum. 80, 113302 (2009)] published Tue Nov 10, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 11, 2009 Category: Physics Source Type: journals

Magnetic moment investigation by frequency mixing techniquesemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
I. Teliban, C. Thede, S. Chemnitz, C. Bechtold, W. J. Quadakkers et al. Gas turbines and other large industrial equipments are subjected to high-temperature oxidation and corrosion. Research and development of efficient protective coatings is the main task in the field. Also, knowledge about the depletion state of the coating during the operation time is important. To d ... [Rev. Sci. Instrum. 80, 115106 (2009)] published Tue Nov 10, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 11, 2009 Category: Physics Source Type: journals

Thickness-induced resonance-based complex permittivity measurement technique for barium strontium titanate ceramics at microwave frequencyemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Song Xia, Zhuo Xu, and Xiaoyong Wei Thickness-induced resonance would be the major factor of uncertainty for complex permittivity measurement by using transmission/reflection method when the thickness of sample is several integer multiples of the half wavelength. A new technique for complex permittivity measurement was presented in th ... [Rev. Sci. Instrum. 80, 114703 (2009)] published Tue Nov 10, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 11, 2009 Category: Physics Source Type: journals

A diffraction-limited scanning system providing broad spectral range for laser scanning microscopyemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Jiun-Yann Yu (游鈞彥), Chien-Sheng Liao (廖建盛), Zong-Yan Zhuo (卓宗衍), Chen-Han Huang (黃貞翰), Hsiang-Chen Chui (崔祥辰) et al. Diversified research interests in scanning laser microscopy nowadays require broadband capability of the optical system. Although an all-mirror-based optical design with a suitable metallic coating is appropriate for broad-spectrum applications from ultraviolet to terahertz, most researchers prefer ... [Rev. Sci. Instrum. 80, 113704 (2009)] published Tue Nov 10, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 11, 2009 Category: Physics Source Type: journals

Development of a straightness measurement and compensation system with multiple right-angle reflectors and a lead zirconate titanate-based compensation stageemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Chien-Hung Liu, Jui-Hung Chen, and Yun-Feng Teng This paper presents a real-time straightness measurement and compensation system with an optical straightness measurement system and a single-axis flexure-hinge type lead zirconate titanate (PZT)-based compensation stage. The optical straightness measurement system consists of a HeNe laser, a quadra ... [Rev. Sci. Instrum. 80, 115105 (2009)] published Tue Nov 10, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 11, 2009 Category: Physics Source Type: journals

Design and characterization of a high-power ultrasound driver with ultralow-output impedanceemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
We describe a pocket-sized ultrasound driver with an ultralow-output impedance amplifier circuit (less than 0.05 Omega) that can transfer more than 99% of the voltage from a power supply to the ultrasound transducer with minimal reflections. The device produces high-power acoustical energy waves wh ... [Rev. Sci. Instrum. 80, 114704 (2009)] published Tue Nov 10, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 11, 2009 Category: Physics Source Type: journals

Non-contact detection of myocardium's mechanical activity by ultrawideband RF-radar and interpretation applying electrocardiographyemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
F. Thiel, D. Kreiseler, and F. Seifert Electromagnetic waves can propagate through the body and are reflected at interfaces between materials with different dielectric properties. Therefore the reason for using ultrawideband (UWB) radar for probing the human body in the frequency range from 100 MHz up to 10 GHz is obvious and suggests an ... [Rev. Sci. Instrum. 80, 114302 (2009)] published Tue Nov 10, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 11, 2009 Category: Physics Source Type: journals

Continuous wave terahertz wave spectrometer based on diode laser pumping: Potential applications in high resolution spectroscopyemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Tadao Tanabe, Srinivasa Ragam, and Yutaka Oyama We constructed a high resolution terahertz (THz) spectroscopic system with an automatic scanning control using a continuous wave (cw) THz wave generator based on difference frequency generation method by excitation of phonon-polariton mode in GaP. The pump and signals lasers were compact, tunable ex ... [Rev. Sci. Instrum. 80, 113105 (2009)] published Mon Nov 9, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 10, 2009 Category: Physics Source Type: journals

An ultralow noise preamplifier for low frequency noise measurementsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Gianluca Cannata, Graziella Scandurra, and Carmine Ciofi Low frequency noise measurements are among the most sensitive tools for the investigation of the quality and of the reliability of semiconductor devices. The sensitivity that can be obtained depends on the background noise of the low noise preamplifier coupled to the device under test (DUT) that, at ... [Rev. Sci. Instrum. 80, 114702 (2009)] published Mon Nov 9, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 10, 2009 Category: Physics Source Type: journals

Electron density measurements of a field-reversed configuration plasma using a novel compact ultrastable second-harmonic interferometeremail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
F. Brandi, F. Giammanco, W. S. Harris, T. Roche, E. Trask et al. A compact high-sensitivity second-harmonic interferometer for line-integrated electron density measurements on a large plasma machine is presented. The device is based on a fiber coupled near-infrared continuous-wave Nd:YAG laser and is remotely controlled. The performances of the instrument are tes ... [Rev. Sci. Instrum. 80, 113501 (2009)] published Mon Nov 9, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 10, 2009 Category: Physics Source Type: journals

Photoacoustic beam profiling of pulsed lasersemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Martin Gonzalez, Guillermo Santiago, Veronica Slezak, and Alejandro Peuriot We introduce a beam profiler of pulsed lasers based on the photoacoustic technique. The method assumes that the initial pressure distribution inside the acoustic cell follows the laser intensity pattern if absorbed energy relaxes rapidly. This initial pressure condition can be described as a superpo ... [Rev. Sci. Instrum. 80, 113106 (2009)] published Mon Nov 9, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 10, 2009 Category: Physics Source Type: journals

Measurements of total peroxy and alkyl nitrate abundances in laboratory-generated gas samples by thermal dissociation cavity ring-down spectroscopyemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Dipayan Paul, Amanda Furgeson, and Hans D. Osthoff A novel measurement technique, thermal dissociation cavity ring-down spectroscopy (TD-CRDS), for rapid (1 s time resolution) and sensitive (precision ~100 parts per trillion by volume (10; pptv)) quantification of total peroxy nitrate (SigmaPN) and total alkyl nitrate (SigmaAN) abundances in laborat ... [Rev. Sci. Instrum. 80, 114101 (2009)] published Mon Nov 9, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 10, 2009 Category: Physics Source Type: journals

Stage for texture measurements above room temperature in a Philips X'Pert Pro MPD diffractometeremail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Cesar E. Sobrero, Daniel Castellani, Raul E. Bolmaro, and Jorge A. Malarria A special stage for texture measurements above room temperature was designed with the proper size and weight to be fitted onto the Eulerean cradle of the Philips X'Pert Pro MPD diffractometer. With such device, flat samples of 2 x 2 cm area can be analyzed at a nearly constant temperature with vari ... [Rev. Sci. Instrum. 80, 113903 (2009)] published Mon Nov 9, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 10, 2009 Category: Physics Source Type: journals

Repetitive production of positron emitters using deuterons accelerated by multiterawatt laser pulsesemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Masatoshi Fujimoto (藤本正俊), Koji Matsukado (松門宏治), Hironori Takahashi (高橋宏典), Yoichi Kawada (河田陽一), Shinji Ohsuka (大須賀慎二) et al. Positron emitters C, N, and O, which can be used in positron emission tomography, were produced using deuterons accelerated by irradiation of laser pulses ~70 TW in peak power and ~30 fs in duration with a repetition of 10 Hz during a period of as long as 200 s. Every laser pulse irradiates the fr ... [Rev. Sci. Instrum. 80, 113301 (2009)] published Mon...
Source: Review of Scientific Instruments - November 10, 2009 Category: Physics Source Type: journals

Extended Kalman filter estimates the contour length of a protein in single molecule atomic force microscopy experimentsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Vicente I. Fernandez, Pallav Kosuri, Vicente Parot, and Julio M. Fernandez Atomic force microscopy force spectroscopy has become a powerful biophysical technique for probing the dynamics of proteins at the single molecule level. Extending a polyprotein at constant velocity produces the now familiar sawtooth pattern force-length relationship. Customarily, manual fits of the ... [Rev. Sci. Instrum. 80, 113104 (2009)] published Fri Nov 6, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 7, 2009 Category: Physics Source Type: journals

A portable high-field pulsed-magnet system for single-crystal x-ray scattering studiesemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
We present a portable pulsed-magnet system for x-ray studies of materials in high magnetic fields (up to 30 T). The apparatus consists of a split-pair of minicoils cooled on a closed-cycle cryostat, which is used for x-ray diffraction studies with applied field normal to the scattering plane. A seco ... [Rev. Sci. Instrum. 80, 113902 (2009)] published Fri Nov 6, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 7, 2009 Category: Physics Source Type: journals

Improving a high-resolution fiber-optic interferometer through deposition of a TiO reflective coating by simple dip-coatingemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Venkatesh Subba-Rao, Chandran Sudakar, Jason Esmacher, Mircea Pantea, Ratna Naik et al. Fiber-optic based interferometers are used to detect small displacements, down to the subnanometer range. Coating the end of the optical fiber with a partially reflecting thin film greatly improves the resolution of interferometers by increasing the multiple reflections between the fiber end and the ... [Rev. Sci. Instrum. 80, 115104 (2009)] published Fri Nov 6, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 7, 2009 Category: Physics Source Type: journals

Electro-optic measurement of terahertz pulse energy distributionemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
J. H. Sun, J. G. Gallacher, G. J. H. Brussaard, N. Lemos, R. Issac et al. An accurate and direct measurement of the energy distribution of a low repetition rate terahertz electromagnetic pulse is challenging because of the lack of sensitive detectors in this spectral range. In this paper, we show how the total energy and energy density distribution of a terahertz electrom ... [Rev. Sci. Instrum. 80, 113103 (2009)] published Thu Nov 5, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 6, 2009 Category: Physics Source Type: journals

High frequency dielectric properties distribution of BiFeO thin film using near-field microwave microscopyemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Xiao-Yu Zhang, Xuan-Cong Wang, Feng Xu, Yun-Gui Ma, and C. K. Ong A near-field scanning microwave microscopy (NSMM) is applied to investigate the local perpendicular dielectric information of single-phase multiferroic BiFeO thin film and single crystal LaAlO material. Our NSMM is composed of a vector network analyzer and a simple open-ended coaxial probe, which is ... [Rev. Sci. Instrum. 80, 114701 (2009)] published Thu Nov 5, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 6, 2009 Category: Physics Source Type: journals

Design and evaluation of a fast Fourier transform-based nonlinear dielectric spectrometeremail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Ernesto F. Treo and Carmelo J. Felice Nonlinear dielectric spectroscopy of micro-organism is carried out by applying a moderate electrical field to an aqueous sample through two metal electrodes. Several ad hoc nonlinear spectrometers were proposed in the literature. However, these designs barely compensated the nonlinear distortion der ... [Rev. Sci. Instrum. 80, 114301 (2009)] published Wed Nov 4, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 5, 2009 Category: Physics Source Type: journals

Internal frequency conversion extreme ultraviolet interferometer using mutual coherence properties of two high-order-harmonic sourcesemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
We report on an innovative two-dimensional imaging extreme ultraviolet (XUV) interferometer operating at 32 nm based on the mutual coherence of two laser high order harmonics (HOH) sources, separately generated in gas. We give the first evidence that the two mutually coherent HOH sources can be prod ... [Rev. Sci. Instrum. 80, 113102 (2009)] published Tue Nov 3, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 4, 2009 Category: Physics Source Type: journals

An open-source, extensible system for laboratory timing and controlemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
We describe a simple system for timing and control, which provides control of analog, digital, and radio-frequency signals. Our system differs from most common laboratory setups in that it is open source, built from off-the-shelf components, synchronized to a common and accurate clock, and connected ... [Rev. Sci. Instrum. 80, 115103 (2009)] published Tue Nov 3, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 4, 2009 Category: Physics Source Type: journals

Single-shot measurement of terahertz temporal waveform using pulse-front tilting by a direct vision dispersion prismemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Yoichi Kawada, Takashi Yasuda, Atsushi Nakanishi, Hironori Takahashi, and Shin-ichiro Aoshima We demonstrated a single-shot measurement of terahertz temporal waveform using pulse-front tilting by a direct vision dispersion prism (DVDP). An advantage of this technique is the simplicity with which an electro-optic terahertz imaging optical system can be changed into a single-shot measurement s ... [Rev. Sci. Instrum. 80, 113703 (2009)] published Tue Nov 3, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 4, 2009 Category: Physics Source Type: journals

Apparatus for single ice crystal growth from the meltemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Salvador Zepeda, Shunichi Nakatsubo, and Yoshinori Furukawa A crystal growth apparatus was designed and built to study the effect of growth modifiers, antifreeze proteins and antifreeze glycoproteins (AFGPs), on ice crystal growth kinetics and morphology. We used a capillary growth technique to obtain a single ice crystal with well-defined crystallographic o ... [Rev. Sci. Instrum. 80, 115102 (2009)] published Tue Nov 3, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 4, 2009 Category: Physics Source Type: journals

A threshold photoelectron-photoion coincidence spectrometer with double velocity imaging using synchrotron radiationemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Xiaofeng Tang, Xiaoguo Zhou, Mingli Niu, Shilin Liu, Jinda Sun et al. A novel threshold photoelectron-photoion coincidence (TPEPICO) imaging spectrometer at the U14-A beamline of the Hefei National Synchrotron Radiation Laboratory is presented. A set of open electron and ion lenses are utilized to map velocity imaging of photoelectrons and photoions simultaneously, in ... [Rev. Sci. Instrum. 80, 113101 (2009)] published Mon Nov 2, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 3, 2009 Category: Physics Source Type: journals

Measuring temperature-dependent water vapor and gas permeation through high barrier filmsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Philip Hulsmann, Daniel Philipp, and Michael Kohl A new test device for temperature-dependent permeation measurement, existing of a mass spectrometer and sample holders inside a climatic chamber was developed. The front face of a sample is loaded with the atmosphere in the cabinet or a test gas mixture, respectively. The permeated species are accum ... [Rev. Sci. Instrum. 80, 113901 (2009)] published Mon Nov 2, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 3, 2009 Category: Physics Source Type: journals

Improvement of windowed type environmental-cell transmission electron microscope for in situ observation of gas-solid interactionsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Tadahiro Kawasaki, Kouta Ueda, Mikio Ichihashi, and Takayoshi Tanji We have developed an improved, windowed type environmental-cell (E-cell) transmission electron microscope (TEM) for in situ observation of gas-solid interactions, such as catalytic reactions at atmospheric pressure. Our E-cell TEM includes a compact E-cell specimen holder with mechanical stability, ... [Rev. Sci. Instrum. 80, 113701 (2009)] published Mon Nov 2, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 3, 2009 Category: Physics Source Type: journals

Optimal measurement strategies for effective suppression of drift errorsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Valeriy V. Yashchuk Drifting of experimental setups with change in temperature or other environmental conditions is the limiting factor of many, if not all, precision measurements. The measurement error due to a drift is, in some sense, in-between random noise and systematic error. In the general case, the error contri ... [Rev. Sci. Instrum. 80, 115101 (2009)] published Mon Nov 2, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 3, 2009 Category: Physics Source Type: journals

Development of a surface conductivity measurement system for ultrahigh vacuum transmission electron microscopeemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
H. Minoda, K. Hatano, and H. Yazawa The surface conductivity measurement system using a micro-four-point probe (M4PP) had been developed for the ultrahigh vacuum transmission electron microscope (UHV-TEM). Since the current distribution in the sample crystals during the current voltage measurement by the M4PP is localized within the d ... [Rev. Sci. Instrum. 80, 113702 (2009)] published Mon Nov 2, 2009. (Source: Review of Scientific Instruments)
Source: Review of Scientific Instruments - November 3, 2009 Category: Physics Source Type: journals