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.
Similar content being viewed by others
Article PDF
References
NATURE, 128, 185; 1931.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
JACOBSEN, J. Efficiency of Geiger Counter and Absorption of Cosmic Rays. Nature 130, 581 (1932). https://doi.org/10.1038/130581a0
Issue Date:
DOI: https://doi.org/10.1038/130581a0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.