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
汤姆逊散射 Fe/Al等离子体 自发辐射 电子温度 电子密度 Thomson scattering Fe/Al plasma self-emission electron temperature electron density
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.
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.