Half-life of 92Nb
Half-life of 92Nb
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DOI：
10.1016/0016-7037(77)90256-3
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发表时间：
1977-10
影响因子：
5
通讯作者：
T. Makino;M. Honda
中科院分区：
文献类型：
--
作者：
T. Makino;M. Honda
用中子辐照Mo产生长寿命核素92 Nb、91 Nb和94 Nb。核素的活度用γ能谱法测定，原子丰度用质谱法测定。根据92 Nb和94 Nb的活度和丰度的相互比较，得出92 Nb的半衰期为（3.3±0.5）× 107年，而94 Nb的半衰期为2.0× 104年。在绝对计数数据和稀释分析的误差范围内获得了相同的值。
The long-lived nuclide 92 Nb together with 91 Nb and 94 Nb were produced from Mo by neutron irradiation. The activities of the nuclides were determined by γ spectroscopy and the atomic abundances were determined by mass spectrometry. Intercomparison of 92 Nb and 94 Nb activities and abundances yielded a value for half-life (92 Nb)=(3.3±0.5)× 10 7 yr based on a value for half-life (94 Nb)= 2.0× 10 4 yr. The same value was obtained within errors from absolute counting data and dilution analysis.