A Bayesian Treatment of Risk for Radiation Hardness Assurance

A Bayesian Approach for Total Ionizing Dose Hardness Assurance

“…Usually, both failure probability and cost will depend on time-probability increasing with time (as dose accumulates) and cost decreasing (as mission objectives are achieved) or remaining constant. For most missions longer than 2 years, dose increases roughly linearly with time, [11] so probability of failure as a function of time is obtained with a simple change of variables from probability vs. dose.…”

Practicality of evaluating soft errors in commercial sub-90 nm CMOS for space applications

“…Each of these memory applications carries with it different levels of soft error criticality risk -some soft errors may result in scientific or housekeeping data loss, while others may require ground-based intervention for spacecraft safe-hold conditions. Engineers can determine this risk a number of different ways, one of which is a radiation-specific form of failure mode, effects, and criticality analysis called single-event effects criticality analysis (SEECA) [7], another is a Bayesian analysis approach [8].…”