Mass and kinetic energy distribution in cold fission of233U,235U and239Pu induced by thermal neutrons
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The time-of-flight technique was used to measure the mass and kinetic energy distribution of fragments from fission of233U,235U and239Pu, induced by thermal neutrons at the Grenoble High Flux Reactor. The data array is presented as equal probability lines in the high kinetic energy regions. The fluctuations observed in those experimental lines are explained by a static scission configuration model, in which the most important influence comes from the Coulomb interaction energy between the two fragments. The highest values of total kinetic energy are obtained for fragmentations with heavy fragmentsZ=50–52,N=80–82 and light fragmentsZ=40–42,N=60–64.
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