Secular variations in the production of cosmogenic isotopes in the Earth's atmosphere
Secular variations in the production of cosmogenic isotopes in the Earth's atmosphere
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地球大气中宇宙同位素产生的长期变化
DOI：
10.1029/ja084ia02p00423
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发表时间：
1979
影响因子：
--
通讯作者：
K. O'Brien
中科院分区：
文献类型：
--
作者：
K. O'Brien
计算了宇宙同位素产生对太阳调制和地磁场强度的依赖性，并确定了基于 Silberberg-Tsao 形式的散裂产率。 1970--1974年期间的/sup 7/Be平流层存量经计算约为4.5mCi，与实测值吻合较好。计算出的放射性碳储量为 1.75 cm/sub e//sup -2/ s/sup -1/（其中结果在整个地球上积分）与实验值 1.8 非常吻合。考虑了地磁和太阳效应。
The dependence of cosmogenic isotope production on solar modulation and on geomagnetic field intensity has been calculated, and spallation yields based on the Silberberg-Tsao formalism have been determined. The stratospheric inventory of /sup 7/Be during the period 1970--1974 has been calculated to be about 4.5mCi, in good agreement with measured values. The calculated radiocarbon reservoir of 1.75 cm/sub e//sup -2/ s/sup -1/ (where results are integrated over the whole earth) is in good agreement with experimental value of 1.8. Geomagnetic and solar effects were taken into account.