航天器环境工程2026，Vol.43Issue(1)：75-82,8.DOI:10.12126/see.2025067
金属遮挡优化型前照式sCMOS传感器在中子辐照下的成像性能
Imaging performance of a metal-shielding-optimized front-side-illuminated scientific CMOS sensor under neutron irradiation
王睿 1郭宝辉 1王英男 1葛延滨 1武晓阳 1王亮1
作者信息
摘要
Abstract
To meet the engineering requirements for high-sensitivity imaging that demands both high optical performance and radiation robustness in space and nuclear radiation environments,this study experimentally investigates the imaging performance of a metal-shielding-optimized front-side-illuminated(FSI)scientific CMOS image sensor under neutron irradiation.Neutron irradiation experiments were conducted using a fast-neutron source,with a cumulative equivalent 1 MeV neutron fluence of up to 3.72×1010 n·cm-2.The stability of imaging brightness and the uniformity of pixel response were evaluated by statistically analyzing the variation in the mean gray value and variance of images at different irradiation stages.The results show that,throughout the entire irradiation fluence range,the maximum fluctuation of the mean gray value remained below 20%,and the image variance was stable within the range of 1.28 to 1.81.No significant bad pixels or functional failures were observed.These findings demonstrate the effectiveness of the metal-shielding-optimized FSI structure,which has a peak quantum efficiency of 72%,in suppressing neutron-induced displacement damage and maintaining imaging uniformity.This indicates its strong potential for high-reliability applications such as space imaging and nuclear radiation monitoring.关键词
科学级CMOS/金属遮挡优化/中子辐照/位移损伤/空间辐射成像Key words
scientific CMOS/metal-shielding optimization/neutron irradiation/displacement damage/space radiation imaging分类
信息技术与安全科学引用本文复制引用
王睿,郭宝辉,王英男,葛延滨,武晓阳,王亮..金属遮挡优化型前照式sCMOS传感器在中子辐照下的成像性能[J].航天器环境工程,2026,43(1):75-82,8.
