A study of radiation effects of 9 and 12MeV protons on Chinese CMOS image sensor degradation
- Received Date: 2007-09-10
- Accepted Date: 2007-12-02
- Available Online: 2008-06-05
Abstract:
The 9 and 12MeV proton irradiations of the Chinese CMOS Image Sensor in the fluence range from 1×109 to 4×10×10cm-2 and 1×109 to 2×1012cm-2 have been carried out respectively. The color pictures and dark output images are captured, and the average brightness of dark output images is calculated. The anti-irradiation fluence thresholds for 9 and 12~MeV protons are about 4×1010 and 2×1012 cm-2, respectively. These can be explained by the change of the concentrations of irradiation-induced electron-hole pairs and vacancies in the various layers of CMOS image sensor calculated by the TRIM simulation program.