| 金激光等离子体的空间分辨X射线发射谱及其应用 |
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| 引用本文： | 张继彦,杨国洪,郑志坚,杨家敏,丁耀南,张文海,李军.金激光等离子体的空间分辨X射线发射谱及其应用[J].强激光与粒子束,2003,15(10):981-984. |
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| 作者姓名： | 张继彦 杨国洪 郑志坚 杨家敏 丁耀南 张文海 李军 |
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| 作者单位： | 中国工程物理研究院 激光聚变研究中心， 四川 绵阳 621900 |
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| 基金项目： | 国家自然科学基金资助课题(10275056)，中国工程物理研究院预研基金资助课题(20020210) |
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| 摘 要： | 在星光II激光装置上,采用PET平面晶体谱仪与宽20μm的狭缝构成一维空间分辨光谱测量系统,对金平面靶激光等离子体进行观测,获得了沿靶面法向一维空间分辨的金M带发射谱。在实验谱中观察到了Au元素类Ni离子的电四极跃迁线3p63d10(1S0) 3p53d104d(3/2,5/2)J=1。利用电四极跃迁线对电子密度的敏感特性,开展了金激光等离子体电子密度诊断的尝试,确定出利用该谱线进行电子密度诊断的有效范围大致在1019～4.5×1021cm-3之间。
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| 关 键 词： | 金激光等离子体 电四极跃迁线 空间分辨 等离子体诊断 电子密度 |
| 文章编号： | 1001-4322(2003)10-0981-04 |
| 收稿时间： | 2002/11/26 |
| 修稿时间： | 2002年11月26 |
Space-resolved X-ray spectrum emitted from laser-produced gold plasma and its applications |
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| zhang ji yan,yang guo hong,zheng zhi jian,yang jia min,ding yao nan,zhang wen hai,li jun.Space-resolved X-ray spectrum emitted from laser-produced gold plasma and its applications[J].High Power Laser and Particle Beams,2003,15(10):981-984. |
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| Authors: | zhang ji yan yang guo hong zheng zhi jian yang jia min ding yao nan zhang wen hai li jun |
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| Institution: | Research Center of Laser Fusion, China Academy of Engineering Physics, P.O.Box 919 986, Mianyang 621900, China |
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| Abstract: | On the Xingguang II laser facility, one dimensional space resoved M band spectra on Au plasmas produced laser irradiation of a plane target were measured by using a PET crystal spectrometer coupled with a slit of 20μm in width. In the experimental spectra, electric quadrupole transition line 3p63d10(1S0)-3p53d104d(3/2,5/2)J=1 of Ni like Au was observed, and according to the sensitive characteristic of this line to electron density, diagnostics of the electron density of Au plasmas were discussed. In conclusion, the use of electric quadrupole line as a diagnostic tool of electron density is available in the range of about 1019～4.5×1021cm-3. |
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| Keywords: | Laser-produced Au plasma Electric quadrupole line Spatial resolution Plasma diagnose Electron density |
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