This module contains a model of the October 1989 solar particle event, including protons and heavy ions. Use it to predict heavy-ion induced single-event upsets and dose equivalent in any orbit during a large solar flare. It is of particular importance for SEU prediction in GEO.
It is a credible worst-case solar particle environment and is used
for that purpose in the International Space Station radiation
specifications. It replaces the CREME August 1972 and composite
worst-case solar models which were overly conservative.
A salient feature of this model is the inclusion of the partially
ionized nature of particles from the sun. This allows the particles
to penetrate into low Earth orbits. It is a new effect that has
not been included in earlier engineering models and will
significantly change assessments of solar particle exposure in LEO.
¹
P.P. Majewski, E. Normand, and D.L. Oberg, A New Solar Flare Heavy Ion Model
and Its Implementation Through MACREE, An Improved Modeling Tool to Calculate
Single Event Effects Rates in Space, IEEE Trans. Nucl. Sci.