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Prompt fission gamma-ray spectra characteristics - systematics and predictions
- Oberstedt, Andreas, 1961 (author)
-
- Halipré, P. (author)
- Institut de Physique Nucleaire Orsay
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- Hambsch, F. J. (author)
- Europeiska kommissionens gemensamma forskningscentrum (JRC),Joint Research Centre (JRC), European Commission
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- Elsevier BV, 2015
- 2015
- English.
- In: Physics Procedia. - : Elsevier BV. - 1875-3884 .- 1875-3892. ; 64, s. 91-100
- Conference paper (peer-reviewed)
Abstract
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- Revised systematics for prompt fission gamma-ray spectra (PFGS) characteristics as function of both atomic and mass number of the compound system, derived from recent experiments on thermal-neutron induced and spontaneous fission, is presented and applied to fission induced by fast neutrons. Results from these calculations for U-238(n, f) and U-235(n, f) for incident neutron energies from 0 to 20 MeV are compared to new experimental results, exhibiting nice agreement. Very recent PFGS measurements for Pu-240(sf) and Pu-242(sf) have been evaluated and the determined PFGS characteristics are shown to also fit well with the systematics. From this we conclude that the obtained systematics, although purely empirical, is indeed a useful tool for the prediction of average total gamma-ray energy released in prompt fission, mean energy per photon as well as average photon multiplicity for fissioning systems, which are difficult or even impossible to study experimentally. (C) 2015 The Authors. Published by Elsevier B.V.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- multiplicity
- u-235
- systematics
- prompt gamma-ray multiplicity
- emission
- A
- energy
- neutron-induced fission
- total gamma-ray energy
- Prompt fission gamma-rays
- fragments
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- kon (subject category)
- ref (subject category)
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- Halipré, P.
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- Lebois, M.
- Oberstedt, S.
- Wilson, J.
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- Chalmers University of Technology
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