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A correlogram method to examine the crosstalk of sCMOS sensors
Ling, Z.1,2; Wang, W.1; Jia, Z.1; Zhou, Q.3; Wang, X.3; Zhang, C.1,2; Yuan, W.1,2; Zhang, S. N.1,2,4
2021-03-01
Source PublicationJOURNAL OF INSTRUMENTATION
ISSN1748-0221
Volume16Issue:3Pages:17
AbstractIn recent years, scientific CMOS (sCMOS) sensors have been widely used for imaging and spectroscopy in the optical and soft X-ray bands. A sCMOS camera has been developed, along with its auxiliary algorithms, for soft X-ray imaging spectroscopy, which is equipped with a Gsense400BSI chip operating at a frame rate up to 48 Hz. In this paper, we report the finding of a new crosstalk phenomenon in X-ray imaging data taken with the sCMOS sensor exposed to an Fe55 X-ray source. A simple correlogram method for the diagnostics of the crosstalk is introduced. Experiments are carried out for various set-ups and operating conditions of the sCMOS sensor. It is found that the crosstalk occurs in about 2.0% of the X-ray events registered, and there is no dependence of the crosstalk on the voltage configurations, temperature or entrance window of the chip. The cause of the crosstalk has been identified to be an imperfect isolation of the readout nodes inherent in the design. It is demoustrated that the true X-ray spectrum can be restored after careful correction for this effect, which should be taken into account for applications of accurate X-ray spectroscopy using the Gsense400BSI sCMOS sensor.
KeywordImaging spectroscopy Photon detectors for UV, visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs, CMOS imagers,etc) X-ray detectors
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences
DOI10.1088/1748-0221/16/03/P03018
Language英语
Funding ProjectNational Natural Science Foundation of China[11703050] ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences[XDA15310100] ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences[XDA15310300] ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences[XDA15052100]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences
WOS Research AreaInstruments & Instrumentation
WOS SubjectInstruments & Instrumentation
WOS IDWOS:000636786100006
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/78421
Collection中国科学院国家天文台
Corresponding AuthorZhang, C.
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Space Astron & Technol, 20A Datun Rd, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing, Peoples R China
3.Gpixel Inc, 588 Yingkou Rd, Changchun, Peoples R China
4.Chinese Acad Sci, Inst High Energy Phys, 19B Yuquan Rd, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Ling, Z.,Wang, W.,Jia, Z.,et al. A correlogram method to examine the crosstalk of sCMOS sensors[J]. JOURNAL OF INSTRUMENTATION,2021,16(3):17.
APA Ling, Z..,Wang, W..,Jia, Z..,Zhou, Q..,Wang, X..,...&Zhang, S. N..(2021).A correlogram method to examine the crosstalk of sCMOS sensors.JOURNAL OF INSTRUMENTATION,16(3),17.
MLA Ling, Z.,et al."A correlogram method to examine the crosstalk of sCMOS sensors".JOURNAL OF INSTRUMENTATION 16.3(2021):17.
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