The SFiNx Detector System
Isaev A.V. Yeremin A.V. Zamyatin N.I. Izosimov I.N. Kuznetsova A.A. Malyshev O.N. Mukhin R.S. Popeko A.G. Popov Y.A. Sailaubekov B. Svirikhin A.I. Sokol E.A. Tezekbayeva M.S. Testov D.A. Chelnokov M.L. Chepigin V.I. Antalic S. Mosat P. Brionnet P. Gall B. Dorvaux O. Kessaci K. Sellam A. Lopez-Martens A. Hauschild K.
February 2022Pleiades journals
Physics of Particles and Nuclei Letters
2022#19Issue 137 - 45 pp.
Abstract: A new detector system for investigating the properties of spontaneous fission of short-lived transuranium nuclei has been created. This system consists of an assembly of double-sided silicon strip detectors surrounded by 116 proportional neutrons counters filled with 3He. The neutron registration efficiency is 54.7 ± 0.1%. The detector system is tested in an experiment investigating the characteristics of spontaneous fission of the 252No isotope. The experimental data on neutron yields are compared with previously published results. The average number of neutrons per fission act ((Formula presented.) = 4.25 ± 0.09) and the multiplicity distribution of prompt neutrons are obtained. The true form of the neutron distribution is reconstructed via a statistical regularization.
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Joint Institute for Nuclear Research, Dubna, Russian Federation
Dubna State University, Dubna, Russian Federation
Institute of Nuclear Physics, Almaty, Kazakhstan
Comenius University, Bratislava, Slovakia
Université de Strasbourg, CNRS, IPHC, Strasbourg, France
IJCLab, IN2P3-CNRS, Université Paris-Saclay, Orsay, France
Joint Institute for Nuclear Research
Dubna State University
Institute of Nuclear Physics
Comenius University
Université de Strasbourg
IJCLab
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