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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)
Department精密物理量测量实验室
2018-09-11
Source PublicationNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ISSN1689002
Volume902Pages:76-82
Contribution Rank1
Abstract

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
Indexed BySCI ; EI
Language英语
WOS IDWOS:000442082500010
EI Accession Number20182605360386
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/30409
Collection精密物理量测量实验室
Corresponding AuthorLei, Fanpu (leifanpu@opt.ac.cn)
Affiliation1.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
Recommended Citation
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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