Study on Total Dose Effects of TDI-CCD and Corresponding Test Methods

Zhang LL-Guo

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Study on Total Dose Effects of TDI-CCD and Corresponding Test Methods

Article | 更新时间：2020-08-13

- Study on Total Dose Effects of TDI-CCD and Corresponding Test Methods
- Optics and Precision Engineering Vol. 17, Issue 12, Pages: 2924-2930(2009)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所,吉林长春,130033
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：24 June 2009，
  
  Revised：19 August 2009，
  
  Published Online：25 December 2009，
  
  Published：25 December 2009
- 稿件说明：
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张立国. TDI-CCD总剂量辐射效应及其测试研究[J]. 光学精密工程, 2009,17(12):2924-2930

Zhang LL-Guo. Study on Total Dose Effects of TDI-CCD and Corresponding Test Methods[J]. Optics and precision engineering, 2009, 17(12): 2924-2930.
张立国. TDI-CCD总剂量辐射效应及其测试研究[J]. 光学精密工程, 2009,17(12):2924-2930 DOI：

Zhang LL-Guo. Study on Total Dose Effects of TDI-CCD and Corresponding Test Methods[J]. Optics and precision engineering, 2009, 17(12): 2924-2930. DOI：

摘要

对应用于某空间相机中定制的TDI-CCD，为评估空间辐射效应对其成像性能的影响，从器件的电路结构入手，分析了总剂量辐射效应对器件主要性能指标的影响；研究了针对此器件的总剂量辐照实验测试方法并研制了测试装置；对器件进行了60Co γ射线源总剂量辐照实验，定量测试了受辐照前后器件的光电响应性能及对比度传递函数的变化情况。实验结果表明，总辐照剂量达到20kRad(Si)时，定制TDI-CCD的相对响应度、暗电流、动态范围、最大信噪比相对于该器件没受辐照的初始值变化量小于5%，对比度传递函数(CTF)没有明显变化，说明定制的TDI-CCD器件能够满足某空间相机的使用要求。

Abstract

A space camera uses TDI-CCD devices as its imaging sensor. In order to evaluate the influence which is caused by space radiation environment on TDI-CCD

starting with the circuit structure of the devices

the total dose effects (TDEs) and the primary capability index of the devices are analyzed. Then the test equipment and the test methods of the devices for 60Co γ irradiation experiment are studied. In irradiation experiment

the photoelectric response capability and the contrast transfer function (CTF) are tested. By analyzing the experiment results

the following aspects have been concluded that the change of the relative responsibility

dark signal

dynamic range

SNR and CTF of TDI-CCD are below 5% when the irradiation dose is 20 kRad(Si). The TDI-CCD can satisfy the use of the space camera.

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Related Institution

长春光机所

Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

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