Published October 15, 1959
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Sudden increase of cosmic-ray intensity
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Abstract
A sudden 30% increase in cosmic-ray intensity lasting approximately 12 minutes was observed at an atmospheric depth equal to 80 g/cm2 by a Neher integrating ionization chamber flown from Bismarck, North Dakota on October 16, 1958. A similar measurement made simultaneously at Invercargill, New Zealand observed no increase. These observations are not in accord with the simple solar impact zone theory.
Additional Information
©1959 The American Physical Society. Received 15 June 1959. The author wishes to thank the personnel at the Weather Bureau Station in Bismarck, North Dakota for the use of their facilities to make these balloon flights. This program of measurements was supported by the National Science Foundation and the Office of Naval Research.Files
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2007-01-17Created from EPrint's datestamp field
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2021-11-08Created from EPrint's last_modified field