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Abstract

At IRMM, the reactions 237Np(n,f) and 252Cf(sf) have been studied. In the case of 237Np(n,f), the fluctuations observed in TKE (total kinetic energy could be explained, performing two-dimensional fits to the fragment mass-TKE distributions. The behaviour of the total kinetic energy as a function of E(n) (incident neutron energy) could be attributed to a change in TKE (A) as long as E(n) is below the fission barrier. Above the barrier, the mass distribution changes with higher mass yields for masses with lower TKEs and therefore the TKE drops. In the case of 252Cf(sf), an increased high energy gamma-ray yield for energies from 2 MeV to 6 MeV could be verified for fragment masses around 132 amu as compared to other mass regions. The gamma-ray energy spectra for individual masses show several peaks located at different positions for light and heavy fragments.

Additional information

Authors: HAMBSCH F J, JRC Geel (BE);SIEGLER P, JRC Geel (BE);VAN AARLE J, JRC Geel (BE);VOGT R, JRC Geel (BE)
Bibliographic Reference: Paper presented: 15th Nuclear Physics Divisional Conference LEND 95, St. Petersburg (RU), April 18-22, 1995
Availability: Available from (1) as Paper EN 38869 ORA
Record Number: 199511479 / Last updated on: 1995-11-03
Category: PUBLICATION
Original language: en
Available languages: en