&gamma;射线及质子辐照导致CCD光谱响应退化的机制

文林; 李豫东; 郭旗; 汪朝敏

doi:10.3788/fgxb20183902.0244

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γ射线及质子辐照导致CCD光谱响应退化的机制

发光学应用及交叉前沿 | 更新时间：2020-08-12

- 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
- 发光学报 2018年39卷第2期页码：244-250
- 作者机构：
  
  1. 中国科学院新疆理化技术研究所, 中国科学院特殊环境功能材料与器件重点实验室, 新疆电子信息材料与器件重点实验室,新疆乌鲁木齐,830011
  2. 重庆光电技术研究所, 重庆 400060
- 作者简介：
- 基金信息：
  
  新疆维吾尔自治区青年科技创新人才培养工程（qn2015yx035）();中国科学院西部之光重点项目（ZD201301）();中国科学院西部之光项目（2016-QNXZ-
- DOI：10.3788/fgxb20183902.0244
  中图分类号： TP211.6;O472.8
- 纸质出版日期：2018-2-5，
  
  收稿日期：2017-5-12，
  
  修回日期：2017-6-17，
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文林, 李豫东, 郭旗等. 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

WEN Lin, LI Yu-dong, GUO Qi etc. Mechanism of Spectrum Response Degradation in CCD's Exposed to γ-ray and Proton[J]. Chinese Journal of Luminescence, 2018,39(2): 244-250
文林, 李豫东, 郭旗等. 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 DOI： 10.3788/fgxb20183902.0244.

WEN Lin, LI Yu-dong, GUO Qi etc. Mechanism of Spectrum Response Degradation in CCD's Exposed to γ-ray and Proton[J]. Chinese Journal of Luminescence, 2018,39(2): 244-250 DOI： 10.3788/fgxb20183902.0244.

摘要

光谱响应是表征CCD性能的重要参数。为了研究辐射环境对CCD光谱响应产生影响的规律及物理机制，开展了不同粒子辐照实验，对CCD光谱响应曲线的退化形式及典型波长下CCD光响应的退化情况进行了分析。辐射效应对CCD光谱响应的影响可以分为电离总剂量效应和位移效应导致的退化，本文从这两种辐射效应出发，采用

Co-射线及质子两种辐照条件，研究了CCD光谱响应的退化规律。针对460 nm（蓝光）和700 nm（红光）等典型CCD光响应波长，从辐射效应导致的损伤缺陷方面分析了CCD光谱响应退化的物理机制。研究发现，在

Co-射线辐照时CCD光谱响应曲线变化是由于暗信号增加导致的，而质子辐照导致CCD对700 nm波长的光响应退化明显大于460 nm波长的光响应，且10 MeV质子导致的损伤比3 MeV质子更明显，表明位移损伤缺陷易导致CCD光谱响应退化。结果表明，电离总剂量效应主要导致CCD光谱响应整体变化，而位移效应则导致不同波长光的响应差异增大。

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

Co- and 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

Co-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

Keywords

charge-coupled devicestotal ionizing dose effectsdepartment damagespectral response

references

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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

DOI：10.3788/fgxb20183902.0244

摘要

Abstract

关键词

Keywords

references