THE PHOTOPROTONS EMITTED FROM CARBON AND NITROGEN NUCLEI

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Abstract
The photoprotons from carbon have been studied by exposing propane gas to bremsstrahlung of maximum energy 35 Mev. and recording the charged particles produced in photographic plates. The energy distribution displays a peak near 6.0 Mev. which is related to the position of the dipole resonance in C12 nuclei. The angular distribution of protons near the peak energy agrees closely with a function f(θ) = A + Bsin2θ but at higher energies most of the protons are emitted at forward angles. Nitrogen gas has also been bombarded with bremsstrahlung of maximum energies 30 and 70 Mev. The energy distributions of the photoprotons are interpreted in terms of known reactions in the N14 nucleus.

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