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The production of cosmic-ray showers at great depths

Pickering, W. H. (1937) The production of cosmic-ray showers at great depths. Physical Review, 52 (11). pp. 1131-1134. ISSN 0031-899X.

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Experiments are described which prove the existence of cosmic-ray showers consisting of at least three particles, at depths down to 30 meters of water below sea level. The experiments also show that the number of showers decreases in much the same way with depth as the number of vertical coincidences. Even in the first few meters of water there is no marked falling off in the relative number of showers. The effect of lead on the showers at great depths is also discussed.

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Additional Information:©1937 The American Physical Society. Received 18 October 1937. In conclusion I wish to thank the water department of the city of Pasadena for their generous cooperation in making possible the experiments at the Morris Dam. I also wish to acknowledge my appreciation of the financial assistance rendered by the Carnegie Corporation.
Issue or Number:11
Record Number:CaltechAUTHORS:PICpr37b
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8613
Deposited By: Tony Diaz
Deposited On:23 Aug 2007
Last Modified:02 Oct 2019 23:52

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