NAOC Open IR
Accurate Determination of Conversion Gains of SVOM VT CCDs Based on a Signal-Dependent Charge-Sharing Mechanism
Pan, Yue1,2; Fan, Xuewu1; Wang, Hu1; Zhao, Hui1; Qiu, Yulei3; Gao, Wei1; Zhang, Jian1
2021-04-01
Source PublicationELECTRONICS
Volume10Issue:8Pages:10
AbstractThe signal-variance method and the photon transfer curve method are the most valuable tools for calculating the conversion gains of charge-coupled device (CCD) detectors. This paper describes the phenomena that arise in the conversion gain measurements of space multi-band variable object monitor (SVOM) visible telescope (VT) CCDs, where the results of the signal-variance method increase with the image gray level, and the results of the photon transfer curve method appear with nonlinearity, which is caused by the signal-dependent charge sharing mechanism of back-illuminated CCDs. A numerical simulation model based on random variables was adopted to analyze the influence of the mechanism on the gain determination. The model simulates all the signals and noise in the flat field image, including the photon signal and photon-shot noise, readout noise, fixed pattern noise, and the signal-dependent charge-sharing signal, and it demonstrated agreement with the experimental data. Then, we proposed a quadratic polynomial curve-fitting formula for the photon transfer curve, and we quantitatively analyzed the relationship between the fitting coefficients and the gain, the signal-dependent charge sharing coefficient, and the full well capacity using the control variable method. Finally, the formula was used to accurately determine the conversion gains of SVOM VT CCDs.
Keywordphoton transfer curve charge coupled device (CCD) CCD characterization conversion gain SVOM VT
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
DOI10.3390/electronics10080931
Language英语
Funding ProjectNational Natural Science Foundation of China[61107008] ; National Natural Science Foundation of China[61105017]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaComputer Science ; Engineering ; Physics
WOS SubjectComputer Science, Information Systems ; Engineering, Electrical & Electronic ; Physics, Applied
WOS IDWOS:000644013000001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/78213
Collection中国科学院国家天文台
Corresponding AuthorFan, Xuewu
Affiliation1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Pan, Yue,Fan, Xuewu,Wang, Hu,et al. Accurate Determination of Conversion Gains of SVOM VT CCDs Based on a Signal-Dependent Charge-Sharing Mechanism[J]. ELECTRONICS,2021,10(8):10.
APA Pan, Yue.,Fan, Xuewu.,Wang, Hu.,Zhao, Hui.,Qiu, Yulei.,...&Zhang, Jian.(2021).Accurate Determination of Conversion Gains of SVOM VT CCDs Based on a Signal-Dependent Charge-Sharing Mechanism.ELECTRONICS,10(8),10.
MLA Pan, Yue,et al."Accurate Determination of Conversion Gains of SVOM VT CCDs Based on a Signal-Dependent Charge-Sharing Mechanism".ELECTRONICS 10.8(2021):10.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Pan, Yue]'s Articles
[Fan, Xuewu]'s Articles
[Wang, Hu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Pan, Yue]'s Articles
[Fan, Xuewu]'s Articles
[Wang, Hu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Pan, Yue]'s Articles
[Fan, Xuewu]'s Articles
[Wang, Hu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.