Augular Distributions of the Alpha Particles from the ( p , α) Reactions on Na 23 and K 39 at 6.9~7.3 MeV
Journal Article
·
· Journal of the Physical Society of Japan
Angular distributions of the reactions Na/sup 23/(p, alpha )Ne/sup 20/ and tates of the residual nuclei were measured at 6.9, 7.1 and 7.3 Mev of the incident proton energy, respectively, using a semiconductor detector For the reaction Na/sup 23/(p, alpha )Ne/sup 20/ the angunlar distributions of these alpha particles are almost 90 deg unsymmetrical at 7.1 Mev of the incident proton energy, and are slightly unsymmetrical about 90 deg at 7.3 and 6.9 Mev. For the reaction K/sup 39/(p, alpha )Ar/sup 36/,the angular distributions are almost 90 deg symmetrical at all energies of the incident protons. It is considered that the reactions Na/sup 23/(p, alpha )Ne/sup 20/ and K/sup 39/(p, alpha )Ar/sup 36/ leading to the ground and first excited states of the residul nuclei, at around; Mev of incident proton energy, occur through a compound nucleus process, and in the former reaction the number of the compound states excited by the approximately 7-Mev protons are probably not so many as to justify the statistical assumption.
- Research Organization:
- Kyoto Univ.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-010997
- OSTI ID:
- 4808456
- Journal Information:
- Journal of the Physical Society of Japan, Journal Name: Journal of the Physical Society of Japan Journal Issue: 1 Vol. 17; ISSN 0031-9015
- Publisher:
- Physical Society of Japan
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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