Summary
The photofission and photoneutron cross-sections of233U have been measured by using monochromatic and discrete photons produced by thermal neutron capture gamma-rays in several targets placed at the core of the IEA-R1 reactor in the energy interval from 5.43 MeV to 9.72 MeV. The evaluation of the total photoabsorption cross-sections and the parameters: single fission barrier, relative fissionability, fission probability, neutron emission/fission competition, nuclear temperature are also presented.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
B. S. Bhandari andI. C. Nascimento:Nucl. Sci. Eng.,60, 19 (1976).
R. Moreh:Nucl. Instrum. Methods,166, 29 (1979).
O. Y. Mafra, S. Kunioshi andJ. Goldenberg:Nucl. Phys. A,186, 110 (1972).
L. P. Geraldo, L. A. Vinhas andM. F. Cesar:Nucl. Sci. Eng.,89, 150 (1985).
L. P. Gerardo:J. Phys. G,12, 423 (1986).
M. A. P. V. Moraes andM. F. Cesar:Nucl. Instrum. Methods A,277, 467 (1989).
M. A. P. V. Moraes:Photonuclear reactions of 233Uand 239Punear threshold, induced by thermal neutron capture gamma rays, Ph.D. Thesis, University of Sao Paulo (1990).
L. P. Geraldo, M. T. Cesar andM. A. P. V. Moraes: accepted for publication inNucl. Sci. Eng.
J. R. Huizenga, K. M. Clarke, J. E. Gindler andR. Vandenbosch:Nucl. Phys.,34, 439 (1962).
Y. B. Ostapenko, G. N. Smirenkin, A. S. Soladatov, V. E. Zucko andY. M. Tsipenyuk: submitted toVopr. At. Tekh. Ser. Yad. Konst., apudBermann et al. [12].
L. Katz, A. P. Baerg andF. Brown:Proceedings of II International Conference on Peaceful Uses of Atomic Energy, Geneva, 1958, Vol. 15, p. 188.
B. L. Bermann, J. T. Caldwell, E. J. Dowdy, S. S. Dietrich, P. Meyer andR. A. Alvarez:Phys. Rev. C,34, 2201 (1986).
UKAEA Atomic Energy Research Establishment, Chemistyr Division, Harwell, private communication.
M. A. P. V. Moraes andR. Pugliesi: Sao Paulo, Instituto de Pesquisas Energeticas e Nucleares: IPEN-PUB 206 (1988).
D. L. Hill andJ. A. Wheeler:Phys. Rev.,89, 1102 (1953).
R. Vadenbosch andJ. R. Huizenga:Nuclear Fission (Academic Press, New York, N.Y., 1973).
O. Y. Mafra: Ph.D Thesis, Escola Politecnica, University Sao Paulo (1971).
L. P. Geraldo: Ph.D Thesis, IPEN/CNEN, Sao Paulo (1983).
M. A. P. V. Moraes andM. F. Cesar:International Conference Fifty Years of Nuclear Fission, Berlin, April 3–7 (Hahn Meitner Institut, HMB-B464, 1989), p. 21.
M. Gellmann, M. Goldberger andW. Thirring:Phys. Rev.,95, 1612 (1954).
K. Istekov, K. Kuprianov, V. Fursov andG. Smirenkin:Sov. Nucl. Phys.,29, 595 (1979).
K. Kuprianov, G. Smirenkin andV. Fursov:Sov. J. Nucl. Phys.,27, 775 (1978)
K. Kuprianov, I. Istekov, V. Fursov andG. Smirenkin:Sov. J. Nucl. Phys.,32, 180 (1980).
A. Khan andJ. Knowles:Nucl. Phys. A,179, 333 (1972).
A. Wapstra andK. Bos:At. Data Nucl. Data Tables,19, 215 (1977).
J. Huizenga:Phys. Rev.,109, 484 (1958).
C. Bishop, I. Halpern, R. Shaw andR. Vandenbosch:Nucl. Phys. A,198, 161 (1972).
Author information
Authors and Affiliations
Additional information
The authors of this paper have agreed to not receive the proofs for correction.
Rights and permissions
About this article
Cite this article
de Moraes, M.A.P.V., Cesar, M.F. Photonuclear cross-sections of233U using neutron capture gamma-rays, near threshold. Nuov Cim A 106, 1165–1173 (1993). https://doi.org/10.1007/BF02778206
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02778206