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Published June 15, 1936 | public
Journal Article Open

The geographical variation of the cosmic-ray showers

Abstract

In an effort to determine whether the radiation responsible for the cosmic-ray showers is affected by the earth's magnetic field, observations were taken in the summer of 1935 on a voyage across the Pacific to New Zealand and return. A triple coincidence recording apparatus was built in a form that could be used on ship board. The high voltage for the counters was supplied by batteries while the amplifier was connected to operate on 100 volts a.c. or d.c. The counters used were about 2.5 cm in diameter and 14 cm long. They were filled with a mixture of 80 percent argon and 20 percent air to a pressure of 5 cm.

Additional Information

©1936 The American Physical Society. Received 21 May 1936. The pleasant cooperation of the Union Steamship Company and especially the officers of the steamships Makura and Niagara, made this experiment possible.

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August 21, 2023
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October 16, 2023