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Influence of crystal dimension on performance of spherical crystal self-emission imager |
| Chenglong Zhang(张成龙)1,2, Yihang Zhang(张翌航)2, Haochen Gu(谷昊琛)2,3, Nuo Chen(陈诺)2,3, Xiaohui Yuan(远晓辉)4,5, Zhe Zhang(张喆)2,5,6,†, Miaohua Xu(徐妙华)7,‡, Yutong Li(李玉同)2,5,6, Yingjun Li(李英骏)1,§, and Jie Zhang(张杰)2,4,5 |
1 State Key Laboratory for Tunnel Engineering, China University of Mining and Technology, Beijing 100083, China;
2 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
3 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
4 Key Laboratory for Laser Plasmas (MoE) and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China;
5 Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China;
6 Songshan Lake Materials Laboratory, Guangdong 523808, China;
7 School of Science, China University of Mining and Technology (Beijing), Beijing 100089, China |
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Abstract The spherical crystal imaging system, noted for its high energy spectral resolution (monochromaticity) and spatial resolution, is extensively applied in high energy density physics and inertial confinement fusion research. This system supports studies on fast electron transport, hydrodynamic instabilities, and implosion dynamics. The x-ray source, produced through laser-plasma interaction, emits a limited number of photons within short time scales, resulting in predominantly photon-starved images. Through ray-tracing simulations, we investigated the impact of varying crystal dimensions on the performance of a spherical crystal self-emission imager. We observed that increasing the crystal dimension leads to higher imaging efficiency but at the expense of monochromaticity, causing broader spectral acceptance and reduced spatial resolution. Furthermore, we presented a theoretical model to estimate the spatial resolution of the imaging system within a specific energy spectrum range, detailing the expressions for the effective size of the crystal. The spatial resolution derived from the model closely matches the numerical simulations.
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Received: 09 September 2024
Revised: 20 September 2024
Accepted manuscript online: 09 October 2024
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PACS:
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52.57.-z
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(Laser inertial confinement)
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52.57.Kk
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(Fast ignition of compressed fusion fuels)
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| Fund: Project supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant Nos. XDA25051000, XDA25010100, XDA25010300, XDA25030100, and XDA25030200). |
Corresponding Authors:
Zhe Zhang, Miaohua Xu, Yingjun Li
E-mail: zzhang@iphy.ac.cn;mhxu@cumtb.edu.cn;lyj@aphy.iphy.ac.cn
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Cite this article:
Chenglong Zhang(张成龙), Yihang Zhang(张翌航), Haochen Gu(谷昊琛), Nuo Chen(陈诺), Xiaohui Yuan(远晓辉), Zhe Zhang(张喆), Miaohua Xu(徐妙华), Yutong Li(李玉同), Yingjun Li(李英骏), and Jie Zhang(张杰) Influence of crystal dimension on performance of spherical crystal self-emission imager 2024 Chin. Phys. B 33 125205
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