ALPHA PARTICLES FROM THE INTERACTION OF 14.8-Mev NEUTRONS WITH MEDIUM WEIGHT NUCLEI
The angular and energy distributions of alpha particles resulting from V/ sup 51/(n, alpha )Sc/sup 48/ and Sc/sup 32/(n, alpha )Si/sup 29/ reacti ons induced by 14.8 Mev neutrons were measured with Ilford C2 nuclear plates. It was found that the angular distributions for the entire energy regions in the center- of-mass system are concave upwaard and approximately 90 deg symmetrical, and the energy distributions show that more alpha particles with energies below the Coulomb barrier are emitted than expected. Also the curve on a semilog plot of the relative level density calculated from the energy distributions of the alpha particles fits a straight line which would correspond to Maxwellian distributions with the temperatures of about 0.9 Mev for Sc and about 1.5 Mev for Si. The total cross sections of V and S are 126 mb plus or minus 15% and 109 mb plus or minus 15%, respectively. Experimental data on (n, alpha ) reaction are summarized and discussed in detail. (auth)
- Research Organization:
- Univ. of Kyoto
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-12-008773
- OSTI ID:
- 4341580
- Journal Information:
- J. Phys. Soc. Japan, Journal Name: J. Phys. Soc. Japan Vol. Vol: 13
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
THE ANGULAR AND ENERGY DISTRIBUTION OF PROTONS FROM Ni$sup 58$ REACTIONS INDUCED BY 14.8 Mev NEUTRONS
$alpha$-PARTICLES EMITTED FROM 14 Mev NEUTRON INTERACTIONS WITH LIGHT AND MEDIUM-WEIGHT NUCLEI