HEAVY ISOTOPE ABUNDANCES IN MIKE THERMONUCLEAR DEVICE
HEAVY ISOTOPE ABUNDANCES IN MIKE THERMONUCLEAR DEVICE
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DOI：
10.1103/physrev.119.2000
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发表时间：
1960-01-01
期刊：
影响因子：
--
通讯作者：
SPENCE, RW
中科院分区：
文献类型：
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作者：
DIAMOND, H;FIELDS, PR;SPENCE, RW
1952年11月1日的热核爆炸(“迈克”)产生了所有的铀同位素U239，U240，...U 255通过U 238的多次中子俘获。从这些同位素连续的β−衰变的长寿命产物被测量质谱学和辐射计量学。丰度的对数随质量数的增加而平稳下降，偶质量丰度略高于相邻奇质量丰度的几何平均值。对不受常规研究的富中子重核素的某些核性质进行了推断。
The November 1, 1952 thermonuclear explosion (" Mike") produced all of the uranium isotopes U 239, U 240,... U 255 through multiple neutron capture by U 238. The long-lived products of successive β− decays from these isotopes were measured mass spectrometrically and radiometrically. The logarithms of the abundances decline smoothly with increasing mass number; the even-mass abundances slightly exceed the geometric mean of adjacent odd-mass abundances. Some nuclear properties of neutron-rich heavy nuclides, not subject to ordinary investigation are inferred.