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Citation: Zhang Binquan, Wei Fei, Leng Shuang, et al. Effect on the characteristic of silicon drift detector by electron exposure[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(2): 235-238. (in Chinese)

Effect on the characteristic of silicon drift detector by electron exposure

  • Received Date: 19 Nov 2011
  • Publish Date: 28 Feb 2013
  • Detection characteristics of the silicon drift detector (SDD), which is used in the new generation of solar x-ray detector onboard FY-2 satellite, might change due to the exposure of long-term high-energy electron radiation. To test the effect on its energy resolution, efficiency, signal amplitude and other characteristics by electron exposure, an SDD was irradiated using electron radionuclide sources, which is to simulate the space electron radiation. Experiment result shows that both surface damage and bulk damage occur after long-term electron irradiation on the SDD. The SDD's leakage currents increase; its signal amplitude decrease and energy resolution is also affected by the electron irradiation. No changes in detection efficiency are found.

     

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