TITLE

Transmission grating based extreme ultraviolet imaging spectrometer for time and space resolved impurity measurements

AUTHOR(S)
Kumar, Deepak; Stutman, Dan; Tritz, Kevin; Finkenthal, Michael; Tarrio, Charles; Grantham, Steven
PUB. DATE
October 2010
SOURCE
Review of Scientific Instruments;Oct2010, Vol. 81 Issue 10, p10E507
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A free standing transmission grating based imaging spectrometer in the extreme ultraviolet range has been developed for the National Spherical Torus Experiment (NSTX). The spectrometer operates in a survey mode covering the approximate spectral range from 30 to 700 Å and has a resolving capability of δλ/λ on the order of 3%. Initial results from space resolved impurity measurements from NSTX are described in this paper.
ACCESSION #
54858210

 

Related Articles

  • Particle mass yield in secondary organic aerosol formed by the dark zonolysis of α-pinene. Shilling, J. E.; Chen, Q.; King, S. M.; Rosenoern, T.; Kroll, J. H.; Worsnop, D. R.; McKinney, K. A.; Martin, S. T. // Atmospheric Chemistry & Physics;2008, Vol. 8 Issue 7, p2073 

    The yield of particle mass in secondary organic aerosol (SOA) formed by dark ozonolysis was measured for 0.3-22.8 ppbv of reacted α-pinene. Most experiments were conducted using a continuous-flow chamber, allowing nearly constant SOA concentration and chemical composition for several days....

  • UV-vis-NIR spectrometer.  // Spectroscopy;May2006, Vol. 21 Issue 5, p56 

    The article features StellarNet Inc.'s UVN-Super-Range spectrometer. This is designed to provide a wavelength range of 200-110 nm having a high speed USB2 interface. This instrument also has a 2048-element detector array with the company's extreme grating optics that provide a resolution of...

  • Characterization of a polarization-resolved high spectral resolution UV-visible spectrometer. Kim, J.; Kim, D. // Review of Scientific Instruments;Mar2008, Vol. 79 Issue 3, p033109 

    To measure the degree of polarization of a plasma emission, a polarization-resolved UV-visible Czerny–Turner-type spectrometer was designed and constructed. For a high spectral resolution, F=1 m mirrors were used as a focusing and collimating mirrors and the incidence angles to the...

  • WSO/UV spectrographs: the expected performance of HIRDES. Kappelmann, N.; Barnstedt, J.; Werner, K.; Becker-Ross, H.; Florek, S. // Astrophysics & Space Science;Sep2008, Vol. 320 Issue 1-3, p191 

    The World Space Observatory Ultraviolet (WSO/UV) is a multi-national project grown out of the needs of the astronomical community to have future access to the UV range. WSO/UV consists of a single UV telescope with a primary mirror of 1.7 m diameter feeding the UV spectrometer and UV imagers....

  • Multireflection Planar Time-of-Flight Mass Analyzer. I: An Analyzer for a Parallel Tandem Spectrometer. Verentchikov, A. N.; Yavor, M. I.; Hasin, Yu. I.; Gavrik, M. A. // Technical Physics;Jan2005, Vol. 50 Issue 1, p73 

    To increase the speed and selectivity of tandem mass-spectrometric analysis, a tandem of two time-of-flight analyzers that operate in a radically new “nested time” mode is proposed. Such an approach makes it possible to perform parallel analysis of the fragment spectra for all parent...

  • A Soft X-ray Spectrometer using a Highly Dispersive Multilayer Grating. Warwick, Tony; Padmore, Howard; Voronov, Dmitriy; Yashchuk, Valeriy // AIP Conference Proceedings;6/24/2010, Vol. 1234 Issue 1, p776 

    There is a need for higher resolution spectrometers as a tool for inelastic x-ray scattering. Currently, resolving power around R = 10,000 is advertised. Measured RIXS spectra are often limited by this instrumental resolution and higher resolution spectrometers using conventional gratings would...

  • Iron Kα measurement of LHD plasmas using a wide band and compact x-ray crystal spectrometer. Sakurai, I.; Tawara, Y.; Matsumoto, C.; Furuzawa, A.; Morita, S.; Goto, M. // Review of Scientific Instruments;Oct2006, Vol. 77 Issue 10, p10F328 

    X-ray spectra of Fe Kα transitions have been obtained on the Large Helical Device (LHD) using a wide band and compact x-ray spectrometer. The spectrometer consists of a Johann-type LiF(220) crystal with a curvature of 430 mm and a back-illuminated charge-coupled device (CCD) detector with a...

  • Focusing, in-chamber spectrometer triplet for high resolution measurements on the Sandia Z facility. Wenger, D. F.; Sinars, D. B.; Rochau, G. A.; Bailey, J. E.; Porter, J. L.; Faenov, A. Ya.; Pikuz, T. A.; Pikuz, S. A. // Review of Scientific Instruments;Oct2006, Vol. 77 Issue 10, p10F312 

    An early prototype of a focusing spectrometer with one-dimensional (1D) spatial resolution (FSSR) instrument was previously developed for use in the vacuum chamber of the Sandia Z facility [Sinars et al., J. Quant. Spectrosc. Radiat. Transf. 99, 595 (2006)]. This instrument used a single,...

  • Imaging spectrometer for ultraviolet-near-infrared microspectroscopy. Johansson, Thomas; Pettersson, Anders // Review of Scientific Instruments;May97, Vol. 68 Issue 5, p1962 

    Describes the design and performance of a high speed imaging spectrometer system developed for the spectral analysis of micrometer-sized features in transmitted light. Instrument design; Measurement principle; Utilization of the wavelength range from ultraviolet to near infrared; Two white...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics