A double-peaked inner radiation belt - Cause and effect as seen on CRRES

Details A double-peaked inner radiation belt - Cause and effect as seen on CRRES A double-peaked inner radiation belt - Cause and effect as seen on CRRES

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991itns...38.1713m&link_type=abstract

(1991 IEEE Annual Conference on Nuclear and Space Radiation Effects, 28th, San Diego, CA, July 15-19, 1991, Proceedings. A92-240

Computer Science

54

Earth Orbital Environments, Radiation Belts, Radiation Effects, Radiation Measurement, Solar Terrestrial Interactions, Sudden Storm Commencements, Magnetic Storms, Protons, Radio Telescopes

Scientific paper

Data from the Combined Release and Radiation Effects Satellite (CRRES) show the formation of a second peak in the inner proton radiation belt during the Sudden Storm Commencement (SSC) at 03:42 UT on 24 March 1991. The authors believe that the injection of high energy protons into an L-shell of 2.55 RE is directly related to the solar-initiated shock accompanying the SSC. Once injected, the greater than 20 MeV protons became stably trapped and produced the second peak in the proton belt that continues for months after the event. The secondary peak protons increased single event upset rates in microelectronic test devices on CRRES by over an order of magnitude in the region of the second peak, that is, for L-values of 1.8 RE to 2.6 RE. This second belt has far-reaching effects for radiation belt modelers and for determining radiation degradation and single event upset (SEU) levels that must operate in this region of near-Earth space.

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