| 高谱分辨X光能谱诊断技术 |
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| 引用本文： | 杨家敏,丁耀南,郑志坚,王耀梅,张文海,张继彦,洪义麟,徐向东,付绍军.高谱分辨X光能谱诊断技术[J].强激光与粒子束,2003,15(1):69-72. |
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| 作者姓名： | 杨家敏 丁耀南 郑志坚 王耀梅 张文海 张继彦 洪义麟 徐向东 付绍军 |
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| 作者单位： | 1. 中国工程物理研究院 激光聚变研究中心， 四川 绵阳 621900； 2. 等离子体物理国家重点实验室， 四川 绵阳 621900；3. 中国科学技术大学 合肥同步辐射实验室， 安徽 合肥 230029 |
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| 基金项目： | 国家863计划项目资助课题，高温高密度等离子体国家重点实验室基金资助课题 |
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| 摘 要： | 采用国内首次研制出的2 000线/mm的自支撑透射光栅配上背照射软X光CCD(charge coupled device)组成了高谱分辨透射光栅谱仪。通过实验标定和理论模型计算相结合得到了高线对透射光栅的绝对衍射效率；同时建立了透射光栅谱仪测谱解谱方法，编制了相应的解谱程序。在“神光”激光装置上利用该谱仪通过激光打靶实验获得了金腔靶注入口发射的X光能谱定量实验结果，实验结果表明，该谱仪测谱范围在高能区达到6 000eV,谱分辨达到0.1nm，能够清晰地分辨金等离子体M带三峰分布X光谱结构。
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| 关 键 词： | 高谱分辨透射光栅谱仪 软X光能谱 定量测量 |
| 文章编号： | 1001-4322(2003)01-0069-04 |
| 收稿时间： | 2001/10/17 |
| 修稿时间： | 2001年10月17 |
High spectral resolution measurement of soft-X-ray spectrum using transmission grating spectrometer |
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| yang jia min,ding yao nan,zheng zhi jian,wang yao mei,zhang wen hai,zhang ji yan,hong yi lin,xu xiang dong,fu shao jun.High spectral resolution measurement of soft-X-ray spectrum using transmission grating spectrometer[J].High Power Laser and Particle Beams,2003,15(1):69-72. |
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| Authors: | yang jia min ding yao nan zheng zhi jian wang yao mei zhang wen hai zhang ji yan hong yi lin xu xiang dong fu shao jun |
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| Institution: | 1． Research Center of Laser Fusion, CAEP, P.O. Box 919 986, Mianyang 621900, China;2. National Key Laboratory of Plasma Physics, P.O.Box 919 981, Mianyang 621900, China;3. Hefei Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China |
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| Abstract: | High spectral resolution transmission grating spectrometer is established by combining newly manufactured 2 000 l/mm transmission grating with a soft X ray CCD. Transmission grating efficiencies have been studied experimentally and theoretically in order to obtain quantitative results of measured X ray spectra. Then, a method for unfolding the soft X ray spectrum measured with transmission grating spectrometer is introduced, in which the grating efficiencies, CCD quantum efficiencies and grating higher dispersive order overlapping have been taken into account. The developed quantitative measurement method has been applied to obtain X ray spectrum from laser entered gold cavity on "ShengguangⅡ" laser facility. |
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| Keywords: | High spectral resolution transmission grating spectrometer Soft X-ray spectrum Quantitative measurement |
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