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A model of the secondary radiation belt

Selesnick, R. S. and Looper, M. D. and Mewaldt, R. A. (2008) A model of the secondary radiation belt. Journal of Geophysical Research A, 113 . A11221. ISSN 0148-0227. doi:10.1029/2008JA013593.

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Products of nuclear reactions between primary radiation belt protons and constituents of the tenuous upper atmosphere form a collocated secondary radiation belt. A calculation of the time-dependent secondary intensity provides a model specification of this environmental component for low- and medium-altitude satellite orbits. It is based on an earlier model of the radiation belt protons, the novel feature being a determination of the secondary source function from nuclear reaction cross sections. All long-lived secondary products are included, isotopes of H and He being dominant while the heavier Li to O isotopes are present at relatively low levels. Secondary protons are shown to be a minor correction to the primary radiation belt.

Item Type:Article
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Mewaldt, R. A.0000-0003-2178-9111
Additional Information:Copyright 2008 by the American Geophysical Union. Received 8 July 2008; revised 22 September 2008; accepted 30 September 2008; published 29 November 2008. The work at Aerospace was supported by NSF grant ATM-0518190 under the National Space Weather Program. The work at Caltech was supported by NASA grants NNG04GB55G and NAG5-12929. Zuyin Pu thanks Reiner Friedel and Xinlin Li for their assistance in evaluating this paper.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
National Science FoundationATM-0518190
Subject Keywords:Radiation belt, nuclear reactions, secondaries
Record Number:CaltechAUTHORS:SELjgra08
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Official Citation:Selesnick, R. S., M. D. Looper, and R. A. Mewaldt (2008), A model of the secondary radiation belt, J. Geophys. Res., 113, A11221, doi:10.1029/2008JA013593.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12763
Deposited By: Archive Administrator
Deposited On:22 Dec 2008 23:28
Last Modified:08 Nov 2021 22:32

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