Optimization and simulation for photon-counting imaging detector readout anode based on capacitance division

doi:10.3788/CO.20191206.1303

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	Optimization and simulation for photon-counting imaging detector readout anode based on capacitance division
	L.-P.He; J.-Y.Yue; H.-J.Zhang; B.Chen
	2019
发表期刊	Chinese Optics
ISSN	20951531
卷号	12 期号:6 页码:1303-1310
摘要	This paper proposes a new position-resolving readout anode based on charge capacitance-division, which can improve the spatial resolution and photon counting rate of its detector. Firstly, the key factors affecting the imaging performance of existing photon-counting imaging detectors are introduced and the advantages of using capacitance-division readout anodes are analyzed. Secondly, the principle of charge capacitance-division is theoretically deduced and the relation between photon position and detector signal output is analyzed. Then, based on the theoretical deduction, the impact of a capacitance-division anode's physical parameters on the detector's performance is analyzed. After that, the optimized design principle for a capacitance-division position-resolved anode is proposed. A novel readout anode based on charge capacitance-division for a photon counting detector is designed. Finally, by using the finite element simulation tool COMSOL, a model for that readout anode is established, which is used to simulate the process of position-sensitivity and its accuracy. The simulation results show that the position-resolution performance of the new readout anode with the optimized design is better than 50 m in most areas. 2019, China Science Publishing & Media LTD. All right reserved.
关键词	Anodes,Capacitance,Photons
DOI	10.3788/CO.20191206.1303
URL	查看原文
收录类别	EI
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63333
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	L.-P.He,J.-Y.Yue,H.-J.Zhang,et al. Optimization and simulation for photon-counting imaging detector readout anode based on capacitance division[J]. Chinese Optics,2019,12(6):1303-1310.
APA	L.-P.He,J.-Y.Yue,H.-J.Zhang,&B.Chen.(2019).Optimization and simulation for photon-counting imaging detector readout anode based on capacitance division.Chinese Optics,12(6),1303-1310.
MLA	L.-P.He,et al."Optimization and simulation for photon-counting imaging detector readout anode based on capacitance division".Chinese Optics 12.6(2019):1303-1310.

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