Experimental Study of Photon Induced Reactions on 3
He and 4
He at Low Energies
Data are reported for the photodisintegration cross section of the reaction 3He(γ, p)2H at ten energies between 7.0 and 16.0 MeV. Very preliminary data are presented for the reaction 4He(γ, p)3H between 22.0 and 29.5 MeV in 0.5 MeV energy steps, and for the reaction 4He(γ, n)3He at three energies around 28.0 MeV. High-pressure He/Xe gas scintillators served as target and detector. Our data are in better agreement with recent theoretical calculations than the majority of the existing data for all three reactions, but differ significantly from recent data taken with a mono-energetic photon beam and a time-projection chamber. © 2010 Springer-Verlag.
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