Photoneutron reaction cross-section data for 75As: Experiments and evaluation

Авторы: Varlamov V., Davydov A., Kaidarova V., Orlin V.
Журнал: Physical Review C - Nuclear Physics
Том: 99
Номер: 2
Год издания: 2019
Издательство: American Physical Society
Местоположение издательства: United States
Первая страница: 024608-1
Последняя страница: 024608-9
DOI: 10.1103/PhysRevC.99.02460
Аннотация: The problems of reliability of partial photoneutron cross-section data for 75As obtained using beams of quasimonoenergetic photons produced by annihilation in flight of relativistic positrons and the method of neutron multiplicity sorting at Lawrence Livermore National Laboratory (USA) and Centre d’Etudes Nucleaires of Saclay (France) were discussed using the objective physical data reliability criteria. New data for photoneutron reaction cross sections for 75As, satisfying those criteria, were obtained using the experimental-theoretical method for partial reaction cross-section evaluating. Evaluated data for 75As were compared with experimental data and the problems of significant disagreements between Livermore and Saclay data were discussed in detail. It was shown that experimental data for the (γ , 1n) and (γ , 2n) reactions’ cross sections obtained at Livermore are not reliable because of significant systematic uncertainties of different nature.
Добавил в систему: Варламов Владимир Васильевич

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