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Effects of capacitance ratio on the image linearity of capacitive division image readout
Lei, Fanpu1,2; Bai, Yonglin1; Zhu, Bingli1; Wang, Bo1; Bai, Xiaohong1; Hou, Xun1; Lei, Fanpu (leifanpu@opt.ac.cn)
作者部门精密物理量测量实验室
2018-09-11
发表期刊Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ISSN1689002
卷号902页码:76-82
产权排序1
摘要

Capacitive division readout anode has the advantages of simple manufacture technology and high spatial resolution. Linearity of the restored image is limited by the relationship between the values of C (charge divide capacitor), Cs(parasitic capacitor), Cd(capacitor introduced by diagonal electrode) and Cp(perimeter capacitor). This paper describes a discrete capacitance matrix to investigate the dependence of image linearity on capacitor ratios, including C/Cs, C/Cdand(N-1)C/Cp(N is the number of nodes in each row of the capacitance matrix). Results presents that image nonlinearity varies monotonically with C/Cs, C/Cdand(N-1)C/Cp. The effect of these capacitors on the linearity of image can be negligible when C/Csis greater than 100, C/Cdis greater than 10 and (N-1)C/Cpis smaller than 0.1. The reliability of the simulation results is verified by experiments. The RMS nonlinearity of capacitive anode is expected to less than 0.71%. ? 2018 Elsevier B.V.

DOI10.1016/j.nima.2018.06.030
收录类别SCI ; EI
语种英语
WOS记录号WOS:000442082500010
EI入藏号20182605360386
引用统计
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/30409
专题精密物理量测量实验室
通讯作者Lei, Fanpu (leifanpu@opt.ac.cn)
作者单位1.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an; 710119, China
2.University of Chinese Academy of Sciences (CAS), Beijing; 100049, China
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GB/T 7714
Lei, Fanpu,Bai, Yonglin,Zhu, Bingli,et al. Effects of capacitance ratio on the image linearity of capacitive division image readout[J]. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment,2018,902:76-82.
APA Lei, Fanpu.,Bai, Yonglin.,Zhu, Bingli.,Wang, Bo.,Bai, Xiaohong.,...&Lei, Fanpu .(2018).Effects of capacitance ratio on the image linearity of capacitive division image readout.Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment,902,76-82.
MLA Lei, Fanpu,et al."Effects of capacitance ratio on the image linearity of capacitive division image readout".Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 902(2018):76-82.
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