Abstract
The neutron-neutron angular correlation for neutrons with energies ⩾ 1 MeV emitted in thermal-neutron-induced fission of 235U has been measured. The correlation could be adequately described by a simple model, assuming isotropic neutron emission in the fully accelerated fragment frames together with a 20% isotropic scission component and using binomial distributions to simulate the neutron multiplicity (instead of the usual gaussian form) for each fission fragment. The results give no indication of enhanced polar emission.
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