Title: The 11-year solar modulation of cosmic rays as deduced from neutron monitor variations and direct measurements at low energies
Abstract: The variation in the cosmic-ray intensity recorded by neutron monitors from 1958 to 1965 has been investigated to deduce the form of the solar modulation of the cosmic radiation. The neutron monitor data were carefully selected and examined. The observed quarter-year average changes in the intensity at the neutron-monitor stations were then compared with the calculated changes using different modulation functions. Finally, the observed variations in the intensities recorded by neutron monitors were compared with the variations of the radiation observed at the top of the atmosphere and in space. The change in both the neutron monitor intensity and the primary cosmic-radiation can be described by a modulation of the form exp(−K/P) in the rigidity range 0.5 < P < 50 Gv.
Publication Year: 1967
Publication Date: 1967-12-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 23
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