Heavy Ions and Nuclear Fission

作者: Yuri Ts. Oganessian , Yuri A. Lazarev

DOI: 10.1007/978-1-4615-8097-3_1

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摘要: The discovery of neutron-induced fission uranium nuclei in the experiments performed by Hahn and Strassmann (Ha 39, Me 39) has signified an observation nuclear transmutations a radically new type—the processes large-scale rearrangement finite amounts matter. As matter fact, is result irreversible deformation, that grows time, course which original, nearly spherical heavy nucleus undergoes drastic changes its topology transformed into two fragments comparable, yet generally unequal, mass. time evolution fissioning system accompanied multiple redistribution available energy between various degrees freedom, culminates release vast amount form kinetic (mass) accompanying radiation, i.e., prompt neutrons γ rays. To initiate such radical rearrangement, extremely weak external perturbation proved to suffice—the capture slow neutron causing only tiny total number nucleons as well original nucleus.

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