强激光与粒子束, 2015, 27 (3): 032019, 网络出版: 2015-03-23   

激光汤姆逊散射技术诊断辐射加热Fe/Al等离子体状态

Diagnosing radiative heated Fe/Al plasma by Thomson scattering
作者单位
1 中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621900
2 清华大学 工程物理系, 北京 100084
摘要
在神光Ⅱ激光装置上, 利用激光加热金腔产生的X射线辐射场加热Fe/Al样品, 随后用激光探针光入射Fe/Al等离子体并在90°散射方向采集散射光谱, 同时也记录下了样品的自发辐射光谱。实验观察到了清晰的散射光谱以及Fe等离子体自发辐射光谱, 诊断结果表明, Fe/Al等离子体的平均电子温度为360 eV, Fe的平均电离度为18.8。
Abstract
In Thomson scattering experiment on SG-Ⅱ laser facility, X-ray radiation produced by laser interaction with Au hohlraum was used to heat the Fe/Al sample. The scattering spectra of the probe laser beam were measured at 90°. The self-emission from the sample plasma was also recorded. Analyzing and fitting these two spectra, the average electron temperature was 360 eV, and the ionization degree of Fe was 18.8.
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鲍利华, 张继彦, 赵阳, 熊刚, 杨家敏, 丁永坤. 激光汤姆逊散射技术诊断辐射加热Fe/Al等离子体状态[J]. 强激光与粒子束, 2015, 27(3): 032019. Bao Lihua, Zhang Jiyan, Zhao Yang, Xiong Gang, Yang Jiamin, Ding Yongkun. Diagnosing radiative heated Fe/Al plasma by Thomson scattering[J]. High Power Laser and Particle Beams, 2015, 27(3): 032019.

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