Semiempirical Method for Predicting Single Event Effect Rates Due to Direct Ionization

摘要

A semiempirical method for predicting on-orbit single event effect rates has been developed. The derivation of this technique circumvents the need for assumptions regarding sensitive volume geometry, the use of the concept of effective linear energy transfer, and sensitive volume dimension input. Prediction results are compared to flight data from the Cosmic Ray Upset Experiment, for which the presented method is shown to compare up to an order of magnitude more closely than previous methods when applied both to flight-lot-specific and to generic ground test data. The utility of this method in performing trade studies also is demonstrated through an application of candidate microprocessors.