Abstract

The cross section for the Be 9( n, t′) Li 7∗ → Li 7 + γ (0.477 MeV) reaction has been measured in the vicinity of 14 MeV by detecting the gamma-rays at scattering angles from 30° to 150°. A time-of-flight technique was used to distinguish the gamma-rays from the high neutron background. The cross section drops from 20 mb at 13.6 MeV to 10 mb at 14.1 MeV and then rises to 30 mb at 14.7 MeV.

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