Cosmic-Ray Production Rates of Be7 in Oxygen, and P32, P33, S35 in Argon at Mountain Altitudes

Abstract
The production rates of radioisotopes P32, P33, and S35 in argon, and of Be7 in oxygen have been measured by exposing argon and water to cosmic rays at mountain altitudes for periods of two to four months during 1959. The measured values at λ=51° N, atmospheric depth 685 g cm2 are 7.6×106, 6.2×106, 1.4×105 atoms (gargon)1 sec1 of P32, P33, and S35, respectively, and 9.0×106 Be7 atoms (goxygen)1 sec1.