Elastic and Inelastic Scattering of Protons by Oxygen in the Energy Region of 6.9 MeV to 15.6 MeV
Journal Article
·
· Journal of the Physical Society of Japan
Extensive experimental results were obtained, showing the variation with energy of the absolute angular distributions for the elastic and inelastic scattering of medium energy protons on oxygen. For the elastic scattering, angular distributions between 20 and 160 tained were obtained for twenty incident proton energies spaced between 6.87 and 15.6 Mev. The absolute angular distributions for the inelastic proton groups, leading to the excitation of abcut 6 Mev (6.06 and 6.14 Mev) and 7 Mev (6.92 and 7.12 Mev) states of O16, were measured at five energies from 11.9 to 15.6 Mev. Although angular distributions varied remarkably with the incident energy, integrated cross section decreased monotonically as incident energy increased. In particular, at Ep = 15.6 Mev the total inelastic scattering cross section was roughly measured to be 240 combination rat 40 mb. From this result and the reported results for other reaction cross sections, it was deduced that the O16 nucleus was considerably transparent even for this rather high incident energy. The excitation function for the elastic scattering showed appreciably sharp resonances at energies, scale resonance of a width about 4 Mev, at incident energy of about 13 Mev. It appeared that this resonance was the f-wave giant resonance expected from the shell model.
- Research Organization:
- Tokyo Univ.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-14-020972
- OSTI ID:
- 4167733
- Journal Information:
- Journal of the Physical Society of Japan, Journal Name: Journal of the Physical Society of Japan Journal Issue: 7 Vol. 15; ISSN 0031-9015
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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