Figure 3From: Mitigating radiation damage of single photon detectors for space applications DCR of APDs after irradiation, measurement taken at \(\pmb{-86^{\circ}\mbox{C}}\) operation with APDs biased 20 V above their breakdown voltages. In every case, radiation damage caused a DCR increase. The APDs biased during irradiation developed a noticeably higher dark count rate.Back to article page