THE PROTON COMPONENT OF COSMIC RAYS AT AIRCRAFT ALTITUDES
Keyword(s):
Experiments with a heavy particle selector installed in an aircraft show that the proton intensity in the energy range 230 to 480 Mev. has a variation with height which is exponential, with absorption length 128 ± 10 gm./cm.2 The latitude effect between λ = 40°N. and λ = 56°N. is in general agreement with that found for fast (up to 5 Mev.) neutrons. Some information has been obtained on the variation of the average specific yield for primary energies below 5 Bev.
2012 ◽
Vol 746
(2)
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pp. 116
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1973 ◽
Vol 6
(6)
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pp. 564-568
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2002 ◽
Vol 17
(24)
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pp. 3353-3363
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2007 ◽
Vol 16
(09)
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pp. 2775-2788
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2005 ◽
Vol 1036
(1-2)
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pp. 122-129
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