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Published on: March 25, 2014
SPE dose prediction using locally weighted regression
J W Hines1, L W Townsend, T F Nichols
1Department of Nuclear Engineering, The University of Tennessee, Knoxville, TN 37996-2300, USA. jhines2@utk.edu
Abstract:
When astronauts are outside earth's protective magnetosphere, they are subject to large radiation doses resulting from solar particle events (SPEs). The total dose received from a major SPE in deep space could cause severe radiation poisoning. The dose is usually received over a 20-40 h time interval but the event's effects may be mitigated with an early warning system. This paper presents a method to predict the total dose early in the event. It uses a locally weighted regression model, which is easier to train and provides predictions as accurate as neural network models previously used.
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