Soft x-ray spectra of highly ionized elements with atomic numbers ranging from 57 to 82 produced by compact lasers

G. M. Zeng, H. Daido, T. Nishikawa, H. Takabe, S. Nakayama, H. Aritome, K. Murai, Y. Kato, M. Nakatsuka, S. Nakai

研究成果査読

40 被引用数 (Scopus)

抄録

X-ray emission spectra in the spectral range of 2-13 nm from 19 kinds of material with high atomic numbers (lanthanum through lead) were recorded with a grazing incidence spectrometer equipped with a microchannel plate detector. There is an intense, narrow spectral band in these spectra which shifts toward shorter wavelength and becomes weak in intensity with increasing atomic number. The materials were irradiated either by a 4 J/35 ns slab Nd:glass laser or by a 0.5 J/8 ns Nd:YAG laser. The absolute photon intensities of the spectra were determined with an absolutely calibrated charge coupled device camera. The peak spectral brightness of the emission at the peak intensity of the spectral band for lanthanum plasma was estimated to be 2.1×1016 photons/s/mm2/mrad2 in 0.1% bandwidth. The origin of the narrow, intense spectral bands in the recorded spectra and their dependence on target materials and laser wavelength are interpreted.

本文言語English
ページ(範囲)1923-1930
ページ数8
ジャーナルJournal of Applied Physics
75
4
DOI
出版ステータスPublished - 1994
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学一般

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