The International Space Station Space Radiation Environment: Avionics systems performance in low-Earth orbit Single Event Effects (SEE) environments

摘要

We report the results of detailed investigations of the effects of geographic location, altitude, the 11 year solar cycle, and spacecraft shielding mass on the in-flight single event effects (SEE) performance of the ISS Command and Data Handling (C&DH) system computers between the years 2005 and 2017 and compare in-flight C&DH computer performance with pre-flight test and verification predictions. In addition, we report on the preflight testing and in-flight performance of the commercial-off- the-shelf lap top computers used on ISS. Finally, we present an assessment of ISS as an avionics SEE test and flight demonstration platform for exploration hardware destined for the cis-lunar or other inner solar system environments.