强激光与粒子束, 2013, 25 (9): 2385, 网络出版: 2013-08-28
时间分辨晶体谱仪在Z箍缩等离子体中的应用
Application of timeresolved crystal spectrometer in Zpinch plasmas
摘要
在装置“阳”加速器上,使用椭圆弯晶谱仪对Al丝阵Z箍缩实验的X射线辐射特性进行了研究。在谱仪结构中,使用椭圆面的晶体作为分光元件,采用PIN阵列作为记录元件实现时间分辨测量,同时用成像板记录时间积分结果。在Al丝阵Z箍缩实验中,获得了时间分辨的Al等离子体K壳层辐射谱,用基于“碰撞辐射”模型的K壳层线辐射谱分析程序对Al丝阵Z箍缩的实验数据进行了分析,获得了Al丝阵等离子体的时间分辨的电子温度和时空平均的电子数密度参数。
Abstract
A timeresolved crystal spectrometer has been fabricated for the study of Xray radiations from Zpinch plasma on Yang accelerator. In the spectrometer, an elliptical crystal is used as light splitting element, a tenchannel PIN array is employed to record timeresolved spectral images, and at the same time imaging plate(IP) is used to record timeintegral results. The spectrometer has been used in Zpinch experiments performed on Yang accelerator. The spectra of Kshell lines are observed, when using Al wire arrays as Zpinch loads. Computer program ZSPEC based on the collisionalradiative model has been used to analyze the experimental data. According to the line ratios of Hα/Heα and I.C./Heα, the averaged space and time electron density, and timeresolved electron temperature are obtained.
蔡红春, 黄显宾, 段书超, 李晶, 周少彤, 张思群. 时间分辨晶体谱仪在Z箍缩等离子体中的应用[J]. 强激光与粒子束, 2013, 25(9): 2385. Cai Hongchun, Huang Xianbin, Duan Shuchao, Li Jing, Zhou Shaotong, Zhang Siqun. Application of timeresolved crystal spectrometer in Zpinch plasmas[J]. High Power Laser and Particle Beams, 2013, 25(9): 2385.