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Mission Radiation Environment Modeling and Analysis: Avionics Trade Study for GCD Rad-Neuro ProjectThe two main objectives of this trade study are characterizing the mission radiation environment
for multiple Design Reference Missions (DRM) and analysis of radiation effects on avionics with
the goal of producing radiation tolerant Neuromorphic Computing processor chips with innovative radiation-induced fault mitigation. The NASA process for defining radiation requirements for flight avionics is applied to this domain. The effects of trapped protons and electrons in the Van Allen radiation belts predominates in Low-Earth-Orbit (LEO) and the solar wind, solar flares and Galactic Cosmic Rays (GCRs) are the dominant radiation challenge in the open space between the planets of our solar system. The nature and energy of the particles that cause circuit upset and failure is very different in the two regimes. Two results are produced from the radiation models: determining the Total Integrated Dose (TID) experienced by avionics for a given DRM and predicting the Single Event Effects (SEE) rates for avionics during high rate exposure. These tools are applied to existing semiconductors and can be used for predicting the radiation performance of future semiconductors based on early radiation testing of new devices.
Document ID
20220011775
Acquisition Source
Ames Research Center
Document Type
Technical Memorandum (TM)
Authors
Richard L. Alena
(Ames Research Center Mountain View, California, United States)
Date Acquired
August 2, 2022
Publication Date
August 1, 2022
Subject Category
Computer Operations And Hardware
Cybernetics, Artificial Intelligence And Robotics
Space Radiation
Funding Number(s)
WBS: 969115.04.36.21
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Technical Review
NASA Peer Committee
Keywords
Space Radiation
Avionics
Avionics Requirements and Architecture
Semiconductors
Chips
Electronic Devices
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