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Analytical solution of crystal diffraction intensity

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【作者】 尚万里； 孙奥； 杜华冰； 杨国洪； 韦敏习； 谢旭飞； 车兴森； 侯立飞； 张文海； 黎淼； 施军； 王峰； 何海恩； 杨家敏； 江少恩； 张保汉；

【Author】 Wan-Li Shang;Ao Sun;Hua-Bin Du;Guo-Hong Yang;Min-Xi Wei;Xu-Fei Xie;Xing-Sen Che;Li-Fei Hou;Wen-Hai Zhang;Miao Li;Jun Shi;Feng Wang;Hai-En He;Jia-Min Yang;Shao-En Jiang;Bao-Han Zhang;Research Center of Laser Fusion, China Academy of Engineering Physics;College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications;Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, Chongqing University;

【通讯作者】 韦敏习;黎淼;

【机构】 Research Center of Laser Fusion, China Academy of Engineering Physics； College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications； Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, Chongqing University；

【摘要】 Plasma density and temperature can be diagnosed by x-ray line emission measurement with crystal, and bent crystals such as von Hamos and Hall structures are proposed to improve the diffraction brightness. In this study, a straightforward solution for the focusing schemes of flat and bent crystals is provided. Simulations with XOP code are performed to validate the analytical model, and good agreements are achieved. The von Hamos or multi-cone crystal can lead to several hundred times intensity enhancements for a 200 μm plasma source. This model benefits the applications of the focusing bent crystals.

【Abstract】 Plasma density and temperature can be diagnosed by x-ray line emission measurement with crystal, and bent crystals such as von Hamos and Hall structures are proposed to improve the diffraction brightness. In this study, a straightforward solution for the focusing schemes of flat and bent crystals is provided. Simulations with XOP code are performed to validate the analytical model, and good agreements are achieved. The von Hamos or multi-cone crystal can lead to several hundred times intensity enhancements for a 200 μm plasma source. This model benefits the applications of the focusing bent crystals.

【关键词】 crystal diffraction； analytic method； x-ray diffraction；
【Key words】 crystal diffraction； analytic method； x-ray diffraction；
【基金】 Project supported by the National Natural Science Fundation of China (Grant Nos. 11775203 and 12075219);the China Academy of Engineering Physics(CAEP) Foundation (Grant No. CX20210019)
  • 【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2021年11期
  • 【分类号】O722
  • 【下载频次】12
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