Measuring high-energy γ-ray emission accompanying the spontaneous fission of 252Cf nuclei
Н.В. ЕреминSkobel’tsyn Institute of Nuclear Physics, Moscow State University, Moscow, 119991, RussiaS.S. MarkochevMoscow Physicotechnical Institute (State University), Institutskii per. 9, Dolgoprudny, Moscow oblast, 141700, RussiaA. A. PaskhalovSkobel’tsyn Institute of Nuclear Physics, Moscow State University, Moscow, 119991, RussiaЕ. А. ЦветковMoscow Physicotechnical Institute (State University), Institutskii per. 9, Dolgoprudny, Moscow oblast, 141700, Russia
ABI
Аннотация
The probability of high-energy γ-ray emission accompanying the spontaneous fission of 252Cf nuclei in the energy range of 5–60 MeV was measured experimentally. The γ rays were detected by a BGO detector with a size of ∅7.6 × 7.6 cm in coincidence with neutrons detected by an organic polystyrene-based scintillator with a size of ∅6.0 × 2.0 cm. To reject events associated with the cosmic background, we propose an original method that combines rapid digitizing of the pulse shape and the time-of-flight method.
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