Predicting Radiation-Induced Transient Response in HgCdTe Sensor Arrays
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چکیده
REAG has been tasked with predicting the on-orbit radiation induced transient response in the JWST focal plane arrays (FPA) in the context of assessing the impact on acquisition of science data. Since this is a problem of general interest, NEPP also contributed to the analysis. Pre-mission knowledge of the transient response will allow mission planners to optimize the observatory design and performance. The dominant onorbit radiation environment at L2 is GeV-range protons from the galactic cosmic rays (GCR). In addition, there will be protons at the FPA in the range of ten to a few hundred MeV from solar particle events (SPE). However, it is assumed that science data acquisition will not be attempted during solar particle events. The SPE protons are a concern for degradation but not for transients.
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