Abstract
The spectra of neutrons from the reactions 49Ti(p, n)49V and 57Fe (p, n)57Co were measured in the range of proton energies between 8 and 11 MeV along with their counterparts from the reactions 48Ti(d, n)49V and 56Fe (d, n)57Co 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 49V and 57Co and their energy dependences were determined. The results were discussed together with available experimental data and data recommended by model systematics.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
W. Mannhart, Report IAEA-TECDOC-410 (Vienna, 1987).
V. G. Demenkov, B. V. Zhuravlev, A. A. Lychagin, et al., Instrum. Exp. Tech. 38, 314 (1995).
P. G. Young, E. D. Arthur, and M. B. Chadwick, in Proceedings of the IAEA Workshop on Nuclear Reaction Data and Nuclear Reactors: Physics, Design and Safety, Trieste, Italy, 1998 (World Sci., Singapore, 1998), Vol. 1, p. 227.
B. V. Zhuravlev and N. N. Titarenko, Preprint FEI- 2819 (Inst. Phys. Power Eng., Obninsk, 2000).
A. J. Koning and J. D. Delaroche, Nucl. Phys. A 713, 231 (2003).
ENSDF Database–Evaluated Nuclear Structure Data File. http://www-nds. iaea. or. at/
H. Vonach, M. Uhl, B. Strohmaier, et al., Phys. Rev. C 38, 2541 (1988).
A. V. Ignatyuk, Statistical Properties of Excited Atomic Nuclei (Energoatomizdat, Moscow, 1980) [in Russian]; O. T. Grudzevich, A. V. Ignatyuk, and V. I. Plyaskin, in Proceedings of the 1st International Conference on Neutron Physics, Kiev, 1987 (TsNIIatominform, Moscow, 1988), Vol. 2, p. 96.
W. Dilg, W. Schantl, H. Vonach, and M. Uhl, Nucl. Phys. A 217, 269 (1973).
A. Gilbert and A. G. W. Cameron, Can. J. Phys. 43, 1446 (1965).
V. Mishra, N. Boukharouba, C. T. Brient, et al., Phys. Rev. C 49, 750 (1994).
J. Ernst, H. L. Harney, and K. Kotajima, Nucl. Phys. A 136, 87 (1969).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © B.V. Zhuravlev, N.N. Titarenko, 2016, published in Yadernaya Fizika, 2016, Vol. 79, No. 2, pp. 95–100.
Rights and permissions
About this article
Cite this article
Zhuravlev, B.V., Titarenko, N.N. Nuclear-level densities in the 49V and 57Co nuclei on the basis of evaporated-neutron spectra in (p, n) and (d, n) reactions. Phys. Atom. Nuclei 79, 133–138 (2016). https://doi.org/10.1134/S1063778816020228
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063778816020228