Abstract
We compare four circuit methods for single event (SE) mitigation: single string with radiation-hardened flip flops, delay-guarded logic, dual-rail logic, and triple modular redundancy (TMR). Test results of the circuit methods at 180 nm are presented. We then describe a novel reprogrammable FPGA architecture which can be configured based on SE mitigation and performance needs, and we evaluate the candidate SE mitigation methods as to suitability for such architecture.
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