Characterizing solar flare high energy particles in near-earth orbits

Details Characterizing solar flare high energy particles in near-earth orbits Characterizing solar flare high energy particles in near-earth orbits

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988itns...35.1412g&link_type=abstract

(IEEE, DNA, NASA, and DOE, Annual Conference on Nuclear and Space Radiation Effects, 25th, Portland, OR, July 12-15, 1988) IEEE

Computer Science

7

Earth Orbital Environments, Energetic Particles, Geomagnetism, Radiation Shielding, Solar Flares, Solar Protons, Aluminum, Sunspots, Terrestrial Radiation

Scientific paper

The high-latitude radiation environment at 840 km for the solar minimum period from December 1983 to October 1987 was measured, using a dosimeter on the DMSP/F7 satellite to characterize solar proton events and compare them to events from earlier periods near solar maximum. The solar proton spectra agree well. A method of characterizing the high-energy particles in solar proton events is proposed. It uses a power spectrum index and dose number that can be useful in specifying polar radiation environments for the design of spacecraft. Latitudinal cutoff levels for higher-energy (up to 35 MeV, up to 55 MeV, and up to 95 MeV) particles are also given for the solar proton event periods and compared to calculated cosmic-ray cutoffs.

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