$alpha$-PARTICLES EMITTED FROM 14 Mev NEUTRON INTERACTIONS WITH LIGHT AND MEDIUM-WEIGHT NUCLEI
A study of alpha -particles emitted as a result of 14-Mev neutron interactions with Na/sup 23/, Mn/sup 55/, and As/sup 75/ is undertaken by the emulsion technique making use of 200 mu m Ilford C/sub 2/ plates. The energy distribution seems to be completely Maxwellian with a peak value ranging from 4 to 5 Mev alpha energy with an excessive emission of alpha particles on the low- energy side. The angular distribution in the c.m. system is anisotropic, but approximately symmetrical about 90 deg . A semi-log plot of relative level densities of the residual nuclei calculated from the alpha energy fits a straight line except on the low energy side where it becomes concave upwards; this curvature becomes more pronounced for higher mass numbers. The cross section for Mn/sup 55/ is estimated to be approximately 86 mb plus or minus 10%. The temperature of the residual nuclei is found to be an increasing function of mass number. The results obtained in the cases of Na/sup 23/, Mn/sup 55/, and As/sup 75/ are discussed. (auth)
- Research Organization:
- Saha Inst. of Nuclear Physics, Calcutta
- NSA Number:
- NSA-17-013511
- OSTI ID:
- 4737074
- Journal Information:
- Nuclear Physics (Netherlands) Divided into Nucl. Phys. A and Nucl. Phys. B, Journal Name: Nuclear Physics (Netherlands) Divided into Nucl. Phys. A and Nucl. Phys. B Vol. Vol: 39; ISSN NUPHA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
Co$sup 59$(n,/cap alpha/)Mn$sup 56$ AND Mn$sup 55$(n,/cap alpha/)V$sup 52$ REACTIONS INDUCED BY 14.8-Mev NEUTRONS
The (α, p ) Reactions on Light and Medium-Weight Nuclei