Modeling the photon counting and photoelectron counting characteristics of quanta image sensors

Bowen Liu; Jiangtao Xu

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Modeling the photon counting and photoelectron counting characteristics of quanta image sensors

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摘要

A signal chain model of single-bit and multi-bit quanta image sensors(QISs)is established.Based on the proposed model,the photoresponse characteristics and signal error rates of QISs are investigated,and the effects of bit depth,quantum efficiency,dark current,and read noise on them are analyzed.When the signal error rates towards photons and photoelectrons counting are lower than 0.01,the high accuracy photon and photoelectron counting exposure ranges are determined.Furthermore,an optimization method of integration time to ensure that the QIS works in these high accuracy exposure ranges is presented.The trade-offs between pixel area,the mean value of incident photons,and integration time under different illuminance level are analyzed.For the 3-bit QIS with 0.16 e-/s dark current and 0.21 e-r.m.s.read noise,when the illuminance level and pixel area are 1 lux and 1.21μm^(2),or 10000 lux and 0.21μm^(2),the recommended integration time is 8.8 to 30 ms,or 10 to21.3μs,respectively.The proposed method can guide the design and operation of single-bit and multi-bit QISs.

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《半导体学报》 |2021年第6期|25-34|共10页
作者
Bowen Liu; Jiangtao Xu;
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作者单位

Tianjin Key Laboratory of Imaging and Sensing Microelectronic Technology;

School of Microelectronics;

Tianjin University;

Tianjin 300072;

China;

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原文格式 PDF
正文语种 chi
中图分类 TP212;
关键词
CMOS image sensor; quanta image sensor; photon counting; photoelectron counting; signal error rate; integration time;

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1. Ghosting theoretical model of single photon counting imagers with Vernier anode [J] . YANG Hao ,ZHAO BaoSheng ,YAN QiuRong . 中国科学 . 2013,第008期
2. Two-dimensional photon counting imaging detector based on a Vernier position sensitive anode readout [J] . 鄢秋荣 ,赵宝升 ,刘永安 . 高能物理与核物理 . 2011,第004期
3. 基于三维加速度counts能量消耗推算方程的校准 [C] . 管培培 ,丁宁炜 ,汤强 . 中华人民共和国第九届大学生运动会暨科学论文报告会 . 2012
4. The Analysis of Revenge Leading to Personality Change in Dumas’the Count of Monte Cristo Using Bourdieu’s Concepts of Habitus,Capital and Field [A] . SYLVIA OHENE MANTEAW . 2020

Modeling the photon counting and photoelectron counting characteristics of quanta image sensors

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