Keywords
spectrometer, crystal, von Hamos, x-ray spectroscopy, CCD
Abstract
A compact focusing crystal spectrometer based on the von Hamos scheme is described. Cylindrically curved mica and graphite crystals with a radius of curvature of R = 20 mm are used in the spectrometer. A front illuminated charge-coupled device (CCD) linear array detector makes this spectrometer useful for real-time spectroscopy of laser-produced plasma x-ray sources within the wavelength range of lambda= 1.8-10 Angstroms. Calibration of crystals and the CCD linear array makes it possible to measure absolute photon fluxes. X-ray spectra in an absolute intensity scale were obtained from Mg, Ti, and Fe laser-produced plasmas, with a spectral resolution lambda/delta lambda= 800-2000 for the mica and lambda/ delta lambda= 200-300 for graphite crystal spectrometers. The spectrometer has high efficiency in a wide spectral range, it is compact (40 mm diam, 150 mm length), easy to align, and flexible. The spectrometer is promising for absolute spectral measurements of x-ray radiation of low-intensity sources (femtosecond laser-produced plasmas, micropinches, electron-beam “ion-trap sources, etc."
Original Publication Citation
Shevelko, A. P., Yu, O. F. Yakushev, and L. V. Knight."Compact focusing von Hamos spectrometer for quantitative x-ray spectroscopy." Review of Scientific Instruments 73 (22): 3458-3463.
BYU ScholarsArchive Citation
Knight, Larry V.; Shevelko, A. P.; Kasyanov, Yu S.; and Yakushev, O. F., "Compact focusing von Hamos spectrometer for quantitative x-ray spectroscopy" (2002). Faculty Publications. 530.
https://scholarsarchive.byu.edu/facpub/530
Document Type
Peer-Reviewed Article
Publication Date
2002-10-01
Permanent URL
http://hdl.lib.byu.edu/1877/1264
Publisher
AIP
Language
English
College
Physical and Mathematical Sciences
Department
Physics and Astronomy
Copyright Status
© 2002 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in The Journal of Chemical Physics and may be found at http://link.aip.org/link/?RSINAK/73/3458/1
Copyright Use Information
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