| 星敏感器用典型CCD探测器电离总剂量效应研究 |
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| 引用本文： | 于朝霞,王有峰,韩飞,梁彦,贺亮.星敏感器用典型CCD探测器电离总剂量效应研究[J].上海航天,2013(5):65-67,72. |
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| 作者姓名： | 于朝霞 王有峰 韩飞 梁彦 贺亮 |
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| 作者单位： | [1]上海航天控制技术研究所,上海200233 [2]上海市空间智能控制技术重点实验室,上海200233 |
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| 摘 要： | 用自建的工程单机对星敏感器用核心器件CCD的电离总剂量效应进行了研究，给出了不同辐照剂量下辐照前后图像灰度、标准差等反映CCD拍摄图像质量的参数变化。研究表明：CCD对电离总剂量效应较敏感，辐照会引起输出图像灰度和标准差变大，导致图像质量下降、信噪比降低，最终影响探测器的成像效果。
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| 关 键 词： | 星敏感器 CCD 电离总剂量效应 |
Study of Total Ionizing Dose Effects on Typical CCD for Star Sensor |
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| YU Zhao-xia,＇,WANG You-feng,＇,HAN Fei,＇,LIANG Yan,＇,HE Liang.Study of Total Ionizing Dose Effects on Typical CCD for Star Sensor[J].Aerospace Shanghai,2013(5):65-67,72. |
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| Authors: | YU Zhao-xia ＇ WANG You-feng ＇ HAN Fei ＇ LIANG Yan ＇ HE Liang |
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| Institution: | 1＇ 2 (1. Shanghai Institute of Spaceflight Control Technology, Shanghai 200233, China 2. Shanghai Key Laboratory of Aerospace Intelligent Control Technology, Shanghai 200233, China) |
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| Abstract: | The total ionizing dose effects on typical CCD for star sensor was studied by the engineering device set up in this paper. The parameters showing the CCD imaging quality which were image gray value before and after irradiation and the standard deviation under various doses were given out. The study showed that CCD was sensitive to the total dose. The irradiation could cause the image gray value and standard deviation becoming bigger which would cause the image quality degraded, signal noise ratio decreased and affect the image of the sensor at last. |
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| Keywords: | Star sensor CCD Total ionizing dose effect |
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