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Neutrons from the fission of excited nuclei

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Abstract

The time required for fragments to attain a given velocity was calculated and compared with the calculated lifetime of an excited nucleus with respect to neutron emission. On the basis of this, it is proposed that a certain fraction of neutrons (which increases with excitation) may be emitted before the time of complete acceleration of a fragment in the fission of nuclei excited to energies of 20 MeV and higher. Consideration of this situation makes it possible to eliminate some of the contradictions present in interpretations of experimental data. It is also pointed out that, because of this, the recentiy employed method for determining the dependence of neutron number on fragment masses by comparing the energies and velocities of the fragments may prove to be inapplicable in cases of high excitations.

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Authors
  1. V. P. Éismont
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Additional information

Translated from Atomnaya Énergiya, Vol. 19, No. 2, pp. 113–116, August, 1965

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Éismont, V.P. Neutrons from the fission of excited nuclei. At Energy 19, 1000–1003 (1965). https://doi.org/10.1007/BF01126415

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  • DOI: https://doi.org/10.1007/BF01126415

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