Monday, July 1, 2013

1306.6773 (Yue Chuan Tan et al.)

Silicon avalanche photodiode operation and lifetime analysis for small
satellites
   [PDF]

Yue Chuan Tan, Rakhitha Chandrasekara, Cliff Cheng, Alexander Ling
Silicon avalanche photodiodes (APDs) are sensitive to operating temperature fluctuations and are also susceptible to radiation flux expected in satellite-based quantum experiments. We introduce a low power voltage adjusting mechanism to overcome the effects of in-orbit temperature fluctuations. We also present data on the performance of Si APDs after irradiation (gamma-ray and proton beam). Combined with an analysis of expected orbital irradiation, we propose that a Si APD in a 400 km equatorial orbit may operate beyond the lifetime of the satellite.
View original: http://arxiv.org/abs/1306.6773

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