Measurement of ²³²Th(n,2n)²³¹Th reaction cross-sections at neutron energies of 14.1 MeV and 14.8 MeV using neutron activation method

Subjects: Physics >> Nuclear Physics submitted time 2023-06-18 Cooperative journals: 《Nuclear Science and Techniques》

LAN Chang-Lin XIE Bao-Lin ZHANG Kai PENG Meng FANG Kai-Hong

Abstract： In this study, the activation cross-sections were measured for ²³²Th(n,2n)²³¹Th reactions at neutron energies of 14.1 and 14.8 MeV, which were produced by a neutron generator through a T(d,n)⁴He reaction. Induced gamma-ray activities were measured using a low background gamma ray spectrometer equipped with a high resolution HPGe detector. In the cross-section calculations, corrections were made regarding the effects of gamma-ray attenuation, dead-time, fluctuation of the neutron flux, and low energy neutrons. The measured cross-sections were compared with the literature data, evaluation data (ENDF-B/VII.1, JENDL-4.0 and CENDL-3.1), and the results of the model calculation (TALYS1.6).

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