Z箍缩Al等离子体X辐射谱线的分离及电子温度的提取  

Separating the Z-pinch plasma X-ray radiation and attaining the electron temperature

作　　者：高启[1] 张传飞[2] 周林[2] 李正宏[2] 吴泽清[3] 雷雨[1] 章春来[1] 祖小涛[1] 

机构地区：[1]电子科技大学物理电子学院,成都610054 [2]中国工程物理研究院核物理与化学研究所,绵阳621900 [3]北京应用物理与计算数学研究所,北京100088

出　　处：《物理学报》2014年第9期242-246,共5页Acta Physica Sinica

基　　金：国家自然科学基金与中物院联合基金(批准号:U1230124)资助的课题~~

摘　　要：以"强光一号"Z箍缩装置10174发次光谱诊断实验结果为例,描述了一种对Z箍缩等离子体X辐射光谱分离提纯、诊断的方法.对连续辐射谱和特征辐射线谱进行分离,并从连续辐射谱和特征辐射线谱中提取了等离子体电子温度信息.结果显示:等离子体连续谱主要由等离子体中心的高温区(Te=290.7 eV±1.2 eV)和温度较低的壳层区域(Te=95.3 eV±8.3 eV)两部分叠加而成;特征辐射线谱主要反映了等离子体中心的高温区信息,根据非局域热动平衡模型计算提取的电子温度约为299—313 eV,与连续谱诊断结果基本符合.According to the experimental results of spectrum diagnosis made on Qiang-Guang-I generator, we report a method to separate and diagnose Z-pinch plasma radiation spectrum. Spectral lines and different continuums are separated from experimental results and electron temperatures can be acquired. Results show that continuums are superposed by radiation of high electron temperature plasma at the centre field （T e = 290.7 eV ± 1.2 eV） and radiation of lower electron temperature plasma at shell region （T e =95.3 eV ± 8.3 eV）. Spectral lines reflect the information of high electron temperature plasma at the centre field. According to the calculation by using NLTE model, the electron temperature of such a plasma is in the range of 299-313 eV. The diagnose result by spectral lines is identical with the continuum’s results.

关 键 词：Z箍缩 光谱分离 光谱诊断 电子温度 

分 类 号：O536[理学—等离子体物理]