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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 18:06 |
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Conference: Bucharest University Faculty of Physics 2017 Meeting
Section: Atomic and Molecular Physics. Astrophysics. Applications
Title:
Photofission cross section of 238U in the giant-resonance region
Authors:
Cristina OPREA(1), Ioan Alexandru OPREA(1), Ion GRUIA(2), Marian PETRE(3)
Affiliation:
1) Joint Institute for Nuclear Research, Frank Laboratory of Neutron Physics,
141980 Dubna, Moscow Region, RF
2) University of Bucharest, Faculty of Physics, Department of Optics, Spectroscopy and Lasers, University of Bucharest, RO-077125 Magurele, Romania
3) “Horia Hulubei” National Institute of Physics and Nuclear Engineering, Department of Theoretical Physics, RO-76900 Magurele, Romania
E-mail
opreaalexandru492@yahoo.com
Keywords:
Nuclear reactions, 238U, photofission, cross section, fragments mass distribution
Abstract:
Photofission represents the process of nuclear fission induced by gamma quanta. The natural Uranium has three isotopes 238U, 235U and 234U. The 238U isotope has the higher abundance (99.2745%) among the Uranium isotopes and therefore is of a great interest in the construction of new nuclear reactors because represents a potential huge fuel source. Cross section of photofission process of 238U is evaluated for gamma energy up to some MeV-s, including the giant-resonance region. The theoretical evaluated cross section is compared with experimental data. After a reliable description of the photofission cross section the fragments mass distribution is extracted. In this work standard codes and programs realized by the authors were used.
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