EVALUATION OF AN ULTRA-LOW POWER REED SOLOMON ENCODER FOR NASA’s SPACE TECHNOLOGY 5 MISSION
نویسندگان
چکیده
Radiation test results and analyses are presented for ultra-low power Reed Solomon encoder circuits that are being considered for use on the Space Technology 5 (ST5) mission. The total ionizing dose tolerance is in excess of 100 krad(Si) and is due to the low supply voltage and the use of back-bias, which suppresses radiation-induced leakage currents in the n-channel devices. The circuits do not latch-up for ion LET values of at least 90 MeV-cm2/mg. A hardened-by-design approach to SEU has achieved an upset threshold of about 20 MeV-cm2/mg. The SEU rate expected for these circuits in the geosynchronous transfer orbit of ST5 is low. https://ntrs.nasa.gov/search.jsp?R=20030112385 2017-12-05T01:32:22+00:00Z
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