Disintegration of Uranium by Neutrons: a New Type of Nuclear Reaction
Disintegration of Uranium by Neutrons: a New Type of Nuclear Reaction
复制标题
DOI：
10.1038/143239a0
复制
发表时间：
1939-02
期刊：
影响因子：
64.8
通讯作者：
L. Meitner;O. Frisch
中科院分区：
文献类型：
--
作者：
L. Meitner;O. Frisch
在用中子轰击铀的过程中，费米及其合作者发现至少产生了四种放射性物质，其中两种被认为是原子序数大于92的物质。进一步调查2表明，至少存在九个放射性周期，其中六个属于铀以外的元素，必须假定核异构性，以便解释它们的化学行为及其遗传关系。
ON bombarding uranium with neutrons, Fermi and collaborators1found that at least four radioactive substances were produced, to two of which atomic numbers larger than 92 were ascribed. Further investigations2demonstrated the existence of at least nine radioactive periods, six of which were assigned to elements beyond uranium, and nuclear isomerism had to be assumed in order to account for their chemical behaviour together with their genetic relations.