Nuclear-level densities in the {sup 49}V and {sup 57}Co nuclei on the basis of evaporated-neutron spectra in (p, n) and (d, n) reactions
- Leipunsky Institute for Physics and Power Engineering (Russian Federation)
The spectra of neutrons from the reactions {sup 49}Ti(p, n){sup 49}V and {sup 57}Fe (p, n){sup 57}Co were measured in the range of proton energies between 8 and 11 MeV along with their counterparts from the reactions {sup 48}Ti(d, n){sup 49}V and {sup 56}Fe (d, n){sup 57}Co at the deuteron energies of 2.7 and 3.8 MeV. These measurements were conducted with the aid of a time-of-flight fast-neutron spectrometer on the basis of the EGP-15 pulsed tandem accelerator of the Institute for Physics and Power Engineering (IPPE, Obninsk). An analysis of measured data was performed within the statistical equilibrium and preequilibrium models of nuclear reactions. The respective calculations based on the Hauser–Feshbach formalism of statistical theory were carried out with nuclear-level densities given by the generalized superfluid model of the nucleus, the backshifted Fermi-gas model, and the Gilbert–Cameron composite formula. The nuclear-level densities of {sup 49}V and {sup 57}Co and their energy dependences were determined. The results were discussed together with available experimental data and data recommended by model systematics.
- OSTI ID:
- 22612700
- Journal Information:
- Physics of Atomic Nuclei, Vol. 79, Issue 2; Other Information: Copyright (c) 2016 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COBALT 57
DEUTERON REACTIONS
ENERGY DEPENDENCE
ENERGY-LEVEL DENSITY
EXPERIMENTAL DATA
FAST NEUTRONS
FERMI GAS MODEL
IRON 56 TARGET
IRON 57
IRON 57 TARGET
MEV RANGE 01-10
NEUTRON SPECTRA
NEUTRON SPECTROMETERS
PROTON REACTIONS
STATISTICAL MODELS
SUPERFLUID MODEL
TANDEM ELECTROSTATIC ACCELERATORS
TIME-OF-FLIGHT SPECTROMETERS
TITANIUM 48 TARGET
TITANIUM 49 TARGET
VANADIUM 49