L-shell absorption measurement and simulation of x-ray-heated constrained material
Liu Hong-Jie (刘红杰)a, Zhang Bao-Han (张保汉)a, Yang Guo-Hong (杨国洪)a, Li Jun (李军)a, Zhang Ji-Yan (张继彦)a, Yang Jia-Min (杨家敏)a, Yan Jun (颜君)b, Li Jia-Ming (李家明)c
a Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China; b Institute of Applied Physics and Computational Mathematics, Beijing 100088, China; c Centre of Atomic and Molecular Sciences, Tsinghua university, Beijing 100084, China
Abstract Using the newly-designed multi-layered target, we obtain a homogeneous Al sample plasma at high density, low electron temperature, and in near local thermodynamic equilibrium. L-shell resonance absorption lines of Li-like and Be-like ions, as well as satellites are clearly observed. Transition arrays such as 2s－3p, 2s2－2s3p and 2s2p－2p3p are identified. We present the calculation method based on the unresolved transition array model, and we compare the measured transmission spectrum with the calculated results. The electron temperature of the constrained sample plasma is determined to be 34eV with a variation of ±2eV.
Received: 03 December 2001
Revised: 11 January 2002
Accepted manuscript online:
PACS:
52.25.Os
(Emission, absorption, and scattering of electromagnetic radiation ?)
Fund: Project supported by the Youth Science and Technology Foundation of Sichuan Province.
Cite this article:
Liu Hong-Jie (刘红杰), Zhang Bao-Han (张保汉), Yang Guo-Hong (杨国洪), Li Jun (李军), Zhang Ji-Yan (张继彦), Yang Jia-Min (杨家敏), Yan Jun (颜君), Li Jia-Ming (李家明) L-shell absorption measurement and simulation of x-ray-heated constrained material 2002 Chinese Physics 11 795
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