Detailed Investigations of Neutron–Neutron Angular Correlations in Slow-Neutron-Induced Fission of 233U, 235U, and 239Pu
- Авторлар: Guseva I.S.1, Gagarski A.M.1, Sokolov V.E.1, Petrov G.A.1, Vorobyev A.S.1, Val’sky G.V.1, Zavarukhina T.A.1
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Мекемелер:
- Petersburg Nuclear Physics Institute
- Шығарылым: Том 81, № 4 (2018)
- Беттер: 447-454
- Бөлім: Nuclei
- URL: https://journal-vniispk.ru/1063-7788/article/view/194332
- DOI: https://doi.org/10.1134/S1063778818040051
- ID: 194332
Дәйексөз келтіру
Аннотация
An experiment devoted to studying neutron–neutron angular correlations in the slow-neutroninduced fission of 233U, 235U and 239Pu nuclei was performed. The experimentally determined angular dependence of the number of neutron–neutron coincidences was compared with the results of a Monte Carlo simulation for various values of the neutron-detection threshold in the range between 490 and 2080 keV. It was found that the experimental angular distributions in question can be described well under the assumption that 2% to 5% of all prompt fission neutrons are emitted isotropically in the laboratory frame. Probably, such neutrons can be interpreted as so-called scission neutrons directly associated with the nuclear-rupture instant. Energy distributions of this component were also obtained from the present analysis.
Авторлар туралы
I. Guseva
Petersburg Nuclear Physics Institute
Хат алмасуға жауапты Автор.
Email: guseva_is@pnpi.nrcki.ru
Ресей, Gatchina, 188300
A. Gagarski
Petersburg Nuclear Physics Institute
Email: guseva_is@pnpi.nrcki.ru
Ресей, Gatchina, 188300
V. Sokolov
Petersburg Nuclear Physics Institute
Email: guseva_is@pnpi.nrcki.ru
Ресей, Gatchina, 188300
G. Petrov
Petersburg Nuclear Physics Institute
Email: guseva_is@pnpi.nrcki.ru
Ресей, Gatchina, 188300
A. Vorobyev
Petersburg Nuclear Physics Institute
Email: guseva_is@pnpi.nrcki.ru
Ресей, Gatchina, 188300
G. Val’sky
Petersburg Nuclear Physics Institute
Email: guseva_is@pnpi.nrcki.ru
Ресей, Gatchina, 188300
T. Zavarukhina
Petersburg Nuclear Physics Institute
Email: guseva_is@pnpi.nrcki.ru
Ресей, Gatchina, 188300
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