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高反射效率高定向性的热解石墨晶体X射线谱仪
引用本文:闫文超,苏鲁宁,林晓宣,杜飞,袁大伟,廖国前,刘成,沈忠伟,陈黎明,李玉同,马景龙,鲁欣,王瑄,王兆华,魏志义,盛政明,张杰.高反射效率高定向性的热解石墨晶体X射线谱仪[J].物理学报,2014,63(17):170701-170701.
作者姓名:闫文超  苏鲁宁  林晓宣  杜飞  袁大伟  廖国前  刘成  沈忠伟  陈黎明  李玉同  马景龙  鲁欣  王瑄  王兆华  魏志义  盛政明  张杰
作者单位:1. 中国科学院物理研究所光物理重点实验室, 北京 100080; 2. 上海交通大学激光等离子体教育部重点实验室, 上海 200240
基金项目:国家重点基础研究发展计划(973),科技部国家重大科学仪器设备开发专项,国家自然科学基金(
摘    要:基于高定向热解石墨晶体(highly oriented pyrolitic graphite,HOPG)研制了一种新型反射式X射线谱仪.该谱仪具有高反射效率、较高能谱分辨率及相对较宽的能谱测量范围.根据计算,在相同的入射条件下,该谱仪的效率比一般X射线弯晶谱仪高3个量级;谱仪能谱分辨率理论值最高达350;理论探测范围是6.891keV至9.193 keV.我们将该谱仪应用在高功率密度激光与固体靶相互作用的实验中,发现在普通弯晶谱仪无法采到信号的实验条件下,HOPG谱仪依然采集到清晰的Cu K谱线.分析发现在8.048 keV(Cu的Kα光子能量)附近的能谱分辨能力最高达到40 eV,分辨率大于200.

关 键 词:高定向性的热解石墨晶体  X射线  高反射效率谱仪
收稿时间:2014-03-31

A high efficiency highly oriented pyrolitic graphite X-ray sp ectrometer
Yan Wen-Chao,Su Lu-Ning,Lin Xiao-Xuan,Du Fei,Yuan Da-Wei,Liao Guo-Qian,Liu Cheng,Shen Zhong-Wei,Chen Li-Ming,Li Yu-Tong,Ma Jing-Long,Lu Xin,Wang Xuan,Wang Zhao-Hua,Wei Zhi-Yi,Sheng Zheng-Ming,Zhang Jie.A high efficiency highly oriented pyrolitic graphite X-ray sp ectrometer[J].Acta Physica Sinica,2014,63(17):170701-170701.
Authors:Yan Wen-Chao  Su Lu-Ning  Lin Xiao-Xuan  Du Fei  Yuan Da-Wei  Liao Guo-Qian  Liu Cheng  Shen Zhong-Wei  Chen Li-Ming  Li Yu-Tong  Ma Jing-Long  Lu Xin  Wang Xuan  Wang Zhao-Hua  Wei Zhi-Yi  Sheng Zheng-Ming  Zhang Jie
Abstract:A novel design of X-ray spectrometer is implemented, using a high efficiency HOPG (highly oriented pyrolitic graphite) Bragg crystal. The spectral resolution of it can reach above 350 with energy ranging from 6.891 to 9.193 keV, theoretically. And the efficiency are 3 order of magnitude higher than the ordinary X-ray crystal spectrometer. Application of this instrument is demonstrated in high intensity laser-foil interaction experiments. It is shown that HOPG spectrometer has much lower threshold of X-ray intensity than ordinary one. The spectral resolution for 8.048 keV (Cu Kαup -line) can reach 40 eV, which gives the spectral resolution > 200.
Keywords: highly oriented pyrolitic graphite Bragg crystal X-ray high efficiency spectrometer
Keywords:highly oriented pyrolitic graphite Bragg crystal  X-ray  high efficiency spectrometer
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