Daily Variation of Cosmic Rays

ONE of the interesting properties of cosmic radiation of intermediate energies, 1–100 GeV, is the daily variation of intensity measured at the Earth. This variation, of average amplitude ∼ 0.3–0.4 per cent, appears largely diurnal in character although harmonic analysis reveals a semidiurnal compone...

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Bibliographic Details
Published in:Nature (London) 1965-10, Vol.208 (5009), p.477-479
Main Authors: MERCER, J. B., WILSON, B. G.
Format: Article
Language:English
Subjects:
Humanities and Social Sciences
letter
multidisciplinary
Science
Science (multidisciplinary)
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Summary:ONE of the interesting properties of cosmic radiation of intermediate energies, 1–100 GeV, is the daily variation of intensity measured at the Earth. This variation, of average amplitude ∼ 0.3–0.4 per cent, appears largely diurnal in character although harmonic analysis reveals a semidiurnal component. The maximum intensity occurs, on the average, about 1700 L.T. although the phase can vary considerably.
ISSN:0028-0836
1476-4687
DOI:10.1038/208477a0