JavaScript requeired.
Geochemical Journal
Geochemical Journal An open access journal for geochemistry
Published for geochemistry community from Geochemical Society of Japan.

Beryllium-7 production from oxygen by atmospheric cosmic rays

Yuji Nakamura, Hisao Mabuchi, Hiroshi Hamaguchi
Geochemical Journal, Vol. 6, No. 2, P. 43-47, 1972


The production rates of 7Be from 16O by cosmic rays were measured at three locations of different latitudes and altitudes. From the altitude dependence of the production rates, the attenuation length of L =165 ± 30g/cm2 was obtained. This value falls in the range of the reported values obtained by physical methods for the atmospheric neutrons. The experimental value at the sea level of the geomagnetic latitude, λ = 25°N, was in good agreement with the value calculated from the generally accepted atmospheric neutron spectrum and the best estimated excitation function. The latitude effect on the production rate is also discussed.

All Issues

Current Issue:
Impact Factor: 0.8 (2022)
Submission to final decision: 9.6 weeks (2022)
Geochemical Society of Japan

page top