发光学报2018，Vol.39Issue(2)：244-250,7.DOI:10.3788/fgxb20183902.0244
γ射线及质子辐照导致CCD光谱响应退化的机制
Mechanism of Spectrum Response Degradation in CCD's Exposed to γ-ray and Proton
摘要
Abstract
Spectral response is one of the important parameters of CCD.In order to study the effects and physical mechanism of spectral response of CCD being affected by radiation environmental,the different particles irradiation tests are done,also the degradation form of CCDs' spectral response and degradation of CCDs' light response on typical wavelength are investigated.The decays of spectral response in CCD exposed to radiation environment consist of total ionizing dose effects and displacement damage effects.This paper investigated the degradation law and physics mechanism of spectral response in CCD irradiated by 60Co-γand proton.In view of the typical CCD optical response wavelength of 460 nm (blue light) and 700 nm (red light),the physical mechanism of the degradation of CCD spectral response was analyzed from the radiation induced damage defects.The results suggest that the CCDs' spectral response curve change induced by 60Co-gamma ray is due to the dark signal increases.The CCDs' spectral response degradation induced by proton is significantly higher at 700 nm wavelength light response than at 460 nm.The degradation is more obvious at 10 MeV proton than 3 MeV proton.So it is clearly that displacement damage defects easily lead to CCD spectral response degradation.The results indicate that the total ionizing dose effects inducing a global degradation of spectrum response,while displacement damage inducing the contrast of spectrum response on different wave length significantly.关键词
电荷耦合器件/电离效应/位移损伤/光谱响应Key words
charge-coupled devices/total ionizing dose effects/department damage/spectral response分类
信息技术与安全科学引用本文复制引用
文林,李豫东,郭旗,汪朝敏..γ射线及质子辐照导致CCD光谱响应退化的机制[J].发光学报,2018,39(2):244-250,7.基金项目
新疆维吾尔自治区青年科技创新人才培养工程(qn2015yx035) （qn2015yx035）
中国科学院西部之光重点项目(ZD201301) （ZD201301）
中国科学院西部之光项目(2016-QNXZ-B-8)资助 （2016-QNXZ-B-8）
Supported by Youth Science and Technology Innovation Talents Training Project of Xinjiang Uygur Autonomous Region (qn2015yx035) （qn2015yx035）
Key Project of Western Light of Chinese Academy of Sciences (ZD201301) （ZD201301）
Western Light Project of Chinese Academy of Sciences (2016-QNXZ-B-8) （2016-QNXZ-B-8）
