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Proceedings Paper

Formation of quasi-monochromatic soft x-ray radiation from laser-produced plasmas
Author(s): Alexander P. Shevelko; Israel L. Beigman; Larry V. Knight
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Paper Abstract

This paper describes a simple method for formation of quasi-monochromatic soft x-ray radiation from laser-produced plasmas. The method uses a special combination of laser target materials and x-ray filters. Targets with middle atomic numbers Za~10-25 are chosen, so hydrogen- and helium-like ions ([H]- and [He]-like ions) are excited in the laser-produced plasmas. The x-ray K-absorption filters isolate only a few lines in the spectrum: resonance lines and corresponding satellites of [H]- and [He]-like ions. These lines occupy a narrow spectral band λ/δλ=10-100. The contribution of continuum radiation out of the separated spectral band is studied theoretically and experimentally. It is shown that the continuum radiation contribution does not exceed 20% of the line radiation intensity. The method of formation of quasi-monochromatic soft x-ray radiation is used for reflectometry (measurements of crystal reflectivity, calibration of crystal spectrometers and x-ray detectors) and for radiometry (absolute radiatin yield measurements) of laser-produced plasmas.

Paper Details

Date Published: 23 October 2002
PDF: 7 pages
Proc. SPIE 4781, Advances in Laboratory-Based X-Ray Sources and Optics III, (23 October 2002); doi: 10.1117/12.450461
Show Author Affiliations
Alexander P. Shevelko, P.N. Lebedev Physical Institute (Russia)
Israel L. Beigman, P.N. Lebedev Physical Institute (Russia)
Larry V. Knight, Brigham Young Univ. (United States)


Published in SPIE Proceedings Vol. 4781:
Advances in Laboratory-Based X-Ray Sources and Optics III
Ali M. Khounsary; Carolyn A. MacDonald, Editor(s)

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