Radiation Testing of Electronic Devices

Abstract

Space is filled with many different types of radiation, but for most satellite application only the radiation trapped in Earth’s magnetosphere is of primary concern. This trapping effect generates the Van Allen Radiation Belts which expose satellite electronics to high energy protons and electrons. In order to increase the probability that new space hardware will survive in this environment requires rigorous testing. Moving away from classical shielding methods, where the shield and the device are two separate identities, brings many mass and performance benefits to satellite manufactures and operators, however this is only possible through radiation testing. This paper presents some of the mechanisms behind radiation induced failures in electronic devices and testing methods developed to simulate the radiation environment here on Earth. Additionally, the preparation process for such a test and some test results are also presented to give an overview of the whole testing procedure involved in qualifying equipment for space use.