Characteristics of ultrafast K line hard x-ray source from femtosecond terawatt laser-produced plasma
Chen Min (陈 敏)ab, Chen Jian-Wen (陈建文)b, Gao Hong-Yi (高鸿奕)b, Lu Pei-Xiang (陆培祥)b, Xu Zhi-Zhan (徐至展)b
a Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai 201800, China; b Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Abstract Theoretical studies and analytical scalings were carried out to find the optimized laser parameters and target conditions so that ultrashort hard x-ray pulses and high x-ray power could be achieved. The dependence of laser intensity and wavelength on the yield of $K$-shell x-ray emission was studied. We propose an optimal design for a foil target for producing high-yield hard x-ray pulses of customizing duration.
Received: 02 January 2002
Revised: 27 September 2002
Accepted manuscript online:
PACS:
52.50.Jm
(Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.))
(Beam characteristics: profile, intensity, and power; spatial pattern formation)
Fund: Project supported by the Special Foundation for State Major Basic Research Program of China (Grant No G1999075200).
Cite this article:
Chen Min (陈 敏), Chen Jian-Wen (陈建文), Gao Hong-Yi (高鸿奕), Lu Pei-Xiang (陆培祥), Xu Zhi-Zhan (徐至展) Characteristics of ultrafast K line hard x-ray source from femtosecond terawatt laser-produced plasma 2003 Chinese Physics 12 55
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