Optimization of the interplanetary energetic proton flux database and its application in modeling radiation conditions |
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| Authors: | I V Getselev M V Podzolko I S Veselovsky |
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| Institution: | (1) Skobel’tsyn Institute of Nuclear Physics, Moscow State University, Vorob’evy gory, Moscow, 119899, Russia;(2) Institute for Space Research, Russian Academy of Sciences, ul. Profsoyuznaya 84/32, GSP-7, Moscow, 117810, Russia |
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| Abstract: | The dissimilarity of the results of solar and galactic proton flux measurements made on different spacecraft is pointed out. It is caused, in addition to instrument errors, by differences in the temporal and spatial conditions of the measurements. We suggest using statistical analysis of proton fluences calculated for different long time intervals, from half a year to 10 years, for the optimization of the interplanetary proton database. An example of such analysis is presented and a probabilistic model of total proton fluences at the Earth’s orbit outside the magnetosphere, constructed using the analysis, is described. A formalized method for separating proton fluxes in solar proton events from protons of galactic cosmic rays is suggested. A conclusion is made that sources of cosmic ray protons with energies of less than 4 MeV should be examined in more detail. |
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| Keywords: | PACS" target="_blank">PACS 96 50 Vg |
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