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Efficiency of Geiger Counter and Absorption of Cosmic Rays

Nature volume 130, page 581 (1932)Cite this article

Abstract

THE efficiency of a Geiger counter may be defined as the probability of excitation when the counter is traversed by a high speed electrified particle. A determination of the efficiency for cosmic rays may be obtained in the following way. Imagine three counters 1, 2, and 3, which are placed with their axes in the same plane and their centres in the same (vertical) line. Let n13 be the number of coincidences between 1 and 3 and n123 the number of triple coincidences. The efficiency of the counter 2 is then determined by n123 : n13.

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References

  1. NATURE, 128, 185; 1931.

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  1. University Institute for Theoretical Physics, Copenhagen

    J. C. JACOBSEN

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  1. J. C. JACOBSEN
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JACOBSEN, J. Efficiency of Geiger Counter and Absorption of Cosmic Rays. Nature 130, 581 (1932). https://doi.org/10.1038/130581a0

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