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Effects of neutron irradiation on current gain and noise in silicon avalanche photodiodes

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4 Author(s)
Gedam, S.G. ; Dept. of Electr. Eng., Rhode Island Univ., Kingston, RI, USA ; Singh, A. ; Banerjee, P.K. ; Mitra, S.S.

The authors report on an experimental study of the effects of fission neutron irradiation on a silicon avalanche photodiode, which is a photodetector that is often used as the front end of a receiver in a fiber-optic link. Measurements indicate that there is a degradation in the current gain and a decrease in the multiplication noise after irradiation. Some recovery is found to occur after three days. The device, however, continues to behave linearly after irradiation

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Nuclear Science, IEEE Transactions on  (Volume:38 ,  Issue: 5 )