Formation of quasi-monochromatic soft x-ray radiation from laser-produced plasmas

Alexander P. Shevelko; Israel L. Beigman; Larry V. Knight

doi:10.1117/12.450461

23 October 2002 Formation of quasi-monochromatic soft x-ray radiation from laser-produced plasmas

Alexander P. Shevelko, Israel L. Beigman, Larry V. Knight

Proceedings Volume 4781, Advances in Laboratory-Based X-Ray Sources and Optics III; (2002) https://doi.org/10.1117/12.450461
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

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 Z_a~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.

Citation Download Citation

Alexander P. Shevelko, Israel L. Beigman, and Larry V. Knight "Formation of quasi-monochromatic soft x-ray radiation from laser-produced plasmas", Proc. SPIE 4781, Advances in Laboratory-Based X-Ray Sources and Optics III, (23 October 2002); https://doi.org/10.1117/12.450461

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