Observation of doubly radiative neutron capture by3He
作者： Martin Suffert , Roland Berthollet
DOI: 10.1016/0375-9474(79)90469-X
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摘要: Abstract Using two 25 cm diameter × 30 Nal spectrometers, coincidence γ-rays were observed attributed to the two-photon decay following thermal neutron capture by 3 He( Q = 20.6MeV). The branching ratio σ(2γ)/σ(1γ) was measured be 0.28±0.07. This value is about ten times larger than result of recent calculations.
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