| Issue |
EPJ Web of Conferences
Volume 8, 2010
EFNUDAT – Measurements and Models of Nuclear Reactions
|
|
|---|---|---|
| Article Number | 03004 | |
| Number of page(s) | 7 | |
| Section | Fission Properties | |
| DOI | https://doi.org/10.1051/epjconf/20100803004 | |
| Published online | 28 October 2010 | |
https://doi.org/10.1051/epjconf/20100803004
Investigation of the prompt neutron emission mechanism in low energy fission of 235,233U(nth, f) and 252Cf(sf)
PNPI, Neutron Research Department, 188300 Gatchina, Leningrad district, Russia
a e-mail: alexander.vorobyev@pnpi.spb.ru
A series of experiments has been performed to measure prompt neutron angular and energy distributions from thermal neutron-induced fission of 235,233U in correlation with the fission fragments. These distributions have been analyzed with the assumption of neutron isotropic emission from accelerated fission fragments. The performed analysis demonstrates that all obtained results can be described within 5% accuracy using this assumption. This discrepancy is approximately constant and doesn’t depend on fragment mass and the total kinetic energy (TKE). Some minor peculiarities of angular distribution may be interpreted as a result of anisotropy of the fission neutron angular distribution in the fragment center-of-mass system.
© Owned by the authors, published by EDP Sciences, 2010
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