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<p>Space-based quantum technologies are essential building blocks for global quantum networks. However, the optoelectronic components used can be susceptible to radiation damage. Predicting long-term instrument performance in the presence of radiation remains a challenging part of space missions. We present a model that accounts for differences in radiation shielding and can predict the trends for dark count rates of space-based silicon Geiger-mode avalanche photodiodes (GM-APD). We find that the predicted trends are correlated with in-situ observations from GM-APDs on-board the SpooQy-1 CubeSat mission.</p>

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Comparing a radiation damage model for avalanche photodiodes through in-situ observation of CubeSat based devices

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月26日

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  • Arpad Lenart,
  • Tanvirul Islam,
  • Srihari Sivasankaran,
  • Peter Neilson,
  • Bernhard Hidding,
  • Daniel K. L. Oi,
  • Alexander Ling

摘要

Space-based quantum technologies are essential building blocks for global quantum networks. However, the optoelectronic components used can be susceptible to radiation damage. Predicting long-term instrument performance in the presence of radiation remains a challenging part of space missions. We present a model that accounts for differences in radiation shielding and can predict the trends for dark count rates of space-based silicon Geiger-mode avalanche photodiodes (GM-APD). We find that the predicted trends are correlated with in-situ observations from GM-APDs on-board the SpooQy-1 CubeSat mission.