| 时间分辨晶体谱仪在Z箍缩等离子体中的应用 |
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| 引用本文： | 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):2385-2388. |
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| 作者姓名： | 蔡红春 黄显宾 段书超 李晶 周少彤 张思群 |
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| 作者单位： | 1.中国工程物理研究院 流体物理研究所, 脉冲功率科学与技术实验室, 四川 绵阳 621 900 |
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| 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。
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| 关 键 词： | 晶体谱仪 时间分辨 Z箍缩 K壳层辐射 |
| 收稿时间： | 2012-10-12 |
Application of time-resolved crystal spectrometer in Z-pinch plasmas |
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| Affiliation: | 1.Key Laboratory of Pulsed Power,Institute of Fluid Physics,CAEP,P.O.Box 919-108,Mianyang 621900,China |
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| Abstract: | A time-resolved crystal spectrometer has been fabricated for the study of X-ray radiations from Z-pinch plasma on Yang accelerator. In the spectrometer, an elliptical crystal is used as light splitting element, a ten-channel PIN array is employed to record time-resolved spectral images, and at the same time imaging plate(IP) is used to record time-integral results. The spectrometer has been used in Z-pinch experiments performed on Yang accelerator. The spectra of K-shell lines are observed, when using Al wire arrays as Z-pinch loads. Computer program ZSPEC based on the collisional-radiative model has been used to analyze the experimental data. According to the line ratios of H/He and I.C./He, the averaged space and time electron density, and time-resolved electron temperature are obtained. |
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