Production of carbon 14 by cosmic‐ray neutrons
作者:
R. E. Lingenfelter,
期刊:
Reviews of Geophysics
(WILEY Available online 1963)
卷期:
Volume 1,
issue 1
页码: 35-55
ISSN:8755-1209
年代: 1963
DOI:10.1029/RG001i001p00035
数据来源: WILEY
摘要:
The rate of production of carbon 14 by cosmic‐ray neutrons is calculated by multigroup diffusion theory as a function of altitude, latitude, and time, and it is normalized to absolute cosmic‐ray neutron flux measurements. The global average production rate over the last ten solar cycles is found to be 2.50 ± 0.50 carbon 14 atoms per square centimeter per second. This value is compared with recent estimates of the decay rate of 1.8 ± 0.2 and 1.9 ± 0.2, and some of the possible implications are dis
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