A High-Efficiency X-Ray Crystal Spectrometer for X-Ray Thomson Scattering

被引：0
|
作者：
张小丁 [1 ,2 ]
张继彦 [2 ]
杨国洪 [2 ]
韦敏习 [2 ]
胡广月 [1 ]
赵斌 [1 ]
郑坚 [1 ]
机构：
[1] CAS Key Laboratory of Basic Plasma Physics and Department of Modern Physics,University of Science and Technology of China
[2] Laser Fusion Research Center,Chinese Academy of Engineering
来源：
Plasma Science and Technology | 2013年 / 08期
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摘要：
Highly oriented pyrolitic graphite (HOPG) has high X-ray diffraction efficiency due to its unique mosaic crystal structure, and thus is very suitable for its application to X-ray Thomson scattering measurement of solid-density plasmas. In this article, by using the K-shell X-ray source from laser-produced Ti plasma, the properties of the HOPG spectrometer are characterized and compared with those of the flat Pentaerythritol (PET) spectrometer. The results show that the diffraction efficiency of the HOPG spectrometer under focusing condition is an order higher than that of the PET spectrometer, while the spectral resolution of the HOPG is about 320, high enough to be used in the measurement of X-ray Thomson scattering spectra.
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页数：5
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