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Potential of prompt γ -ray emission studies in fast-neutron induced fission : a first step

Qi, L. (author)
Univ Paris Sud, Inst Phys Nucl, Rue Georges Clemenceau, F-91406 Orsay, France.
Schmitt, C. (author)
Inst Pluridisciplinaire Hubert Curien, 23 Rue Loess,BP 28, F-67037 Strasbourg 2, France.
Lebois, M. (author)
Univ Paris Sud, Inst Phys Nucl, Rue Georges Clemenceau, F-91406 Orsay, France.
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Oberstedt, A. (author)
Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, ELI NP, Bucharest 077125, Romania.
Oberstedt, S. (author)
European Commiss, Joint Res Ctr, Directorate G Nucl Safety & Secur, Unit G2, B-2440 Geel, Belgium.
Wilson, J. N. (author)
Univ Paris Sud, Inst Phys Nucl, Rue Georges Clemenceau, F-91406 Orsay, France.
Al-Adili, Ali (author)
Uppsala universitet,Tillämpad kärnfysik
Chatillon, A. (author)
CEA, DAM, DIF, F-91297 Arpajon, France.
Choudhury, D. (author)
Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, ELI NP, Bucharest 077125, Romania.
Gatera, A. (author)
European Commiss, Joint Res Ctr, Directorate G Nucl Safety & Secur, Unit G2, B-2440 Geel, Belgium.
Georgiev, G. (author)
Univ Paris Sud, CSNSM, CNRS IN2P3, F-91406 Orsay, France.
Göök, Alf (author)
European Commiss, Joint Res Ctr, Directorate G Nucl Safety & Secur, Unit G2, B-2440 Geel, Belgium.
Laurent, B. (author)
CEA, DAM, DIF, F-91297 Arpajon, France.
Maj, A. (author)
Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland.
Matea, I. (author)
Univ Paris Sud, Inst Phys Nucl, Rue Georges Clemenceau, F-91406 Orsay, France.
Rose, S. J. (author)
Univ Oslo, Dept Phys, POB 1048, N-0316 Oslo, Norway.
Wasilewska, B. (author)
Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland.
Zeiser, F. (author)
Univ Oslo, Dept Phys, POB 1048, N-0316 Oslo, Norway.
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Univ Paris Sud, Inst Phys Nucl, Rue Georges Clemenceau, F-91406 Orsay, France Inst Pluridisciplinaire Hubert Curien, 23 Rue Loess,BP 28, F-67037 Strasbourg 2, France. (creator_code:org_t)
2020-03-25
2020
English.
In: European Physical Journal A. - : Springer Nature. - 1434-6001 .- 1434-601X. ; 56:3
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Prompt γ-ray spectra emitted in fast-neutron induced fission of 239Pu have been recently measured by using the LICORNE directional neutron source at En = 1.8 MeV. The results are used in parallel with the measurements of fast-neutron induced fission of 238U and spontaneous fission of 252Cf to assess the potential of such reactions and observables, in contributing to the understanding of fission. The γ-ray spectra were measured and analyzed under similar conditions, allowing a consistent and robust comparison between the three systems. They are further compared to Monte–Carlo simulations based on two widely-used semi-empirical codes, FREYA and GEF. Differences in the low and high energy portions of the spectrum are interpreted based on simple arguments involving nuclear structure and evaporation effects. The significance and potential of experimental campaigns of this kind, as well as current limitations, are highlighted, together with straightforward but mandatory extensions.

Subject headings

NATURVETENSKAP  -- Fysik -- Subatomär fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Subatomic Physics (hsv//eng)

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