Measurements of solar flare enhancements to the single event upset environment in the upper atmosphere (avionics)

Abstract

The Cosmic Radiation Environment Monitor has flown regularly on a supersonic airliner over a period of 18 months in order to explore the extent of single-event phenomena in the upper atmosphere. Data presented are from flights occurring between November 1988 and May 1990. The detector system used is briefly described. Quiet-time data now have good statistical precision and are compared with predictions of environment models. A number of increases and decreases were observed during the solar flare events of September and October 1989.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>