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Emerging radiation hardness assurance (RHA) issues: a NASA approach for space flight programs

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5 Author(s)
LaBel, K.A. ; NASA Goddard Space Flight Center, Greenbelt, MD, USA ; Johnston, A.H. ; Barth, J.L. ; Reed, R.A.
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Spacecraft performance requirements drive the utilization of commercial-off-the-shelf (COTS) components and emerging technologies in systems. The response of these technologies to radiation is often complex. This engenders a set of emerging radiation hardness assurance (RHA) issues which include displacement damage in optocouplers, high-precision and hybrid devices, enhanced low dose rate (ELDR) and proton damage enhancement (PDE) in linear circuits, linear transients, and catastrophic single event effects (SEEs) phenomena. NASA has developed an approach to designing reliable space systems which address these emerging RHA issues. This programmatic methodology includes hazard definition, hazard evaluation, requirements definition, evaluation of device usage, and application of radiation engineering techniques with the active involvement of designers. Risk assessment is an integral constituent in the approach as is an established program to assess future technology needs for programs

Published in:

Nuclear Science, IEEE Transactions on  (Volume:45 ,  Issue: 6 )

Date of Publication:

Dec 1998

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