Physics Letters B (Aug 2023)
Structure of the prompt neutron multiplicity distribution in the spontaneous fission of 256Rf
- A.V. Isaev,
- R.S. Mukhin,
- A.V. Andreev,
- Z. Asfari,
- M.L. Chelnokov,
- V.I. Chepigin,
- H.M. Devaraja,
- O. Dorvaux,
- B. Gall,
- K. Hauschild,
- I.N. Izosimov,
- A.A. Kuznetsova,
- A. Lopez-Martens,
- O.N. Malyshev,
- A.G. Popeko,
- Yu.A. Popov,
- A. Rahmatinejad,
- B. Sailaubekov,
- T.M. Shneidman,
- E.A. Sokol,
- A.I. Svirikhin,
- M.S. Tezekbayeva,
- A.V. Yeremin,
- N.I. Zamyatin
Affiliations
- A.V. Isaev
- Joint Institute for Nuclear Research, Dubna, 141980, Russia; Corresponding author.
- R.S. Mukhin
- Joint Institute for Nuclear Research, Dubna, 141980, Russia
- A.V. Andreev
- Joint Institute for Nuclear Research, Dubna, 141980, Russia
- Z. Asfari
- Université de Strasbourg, CNRS, IPHC, Strasbourg, UMR7178, 67037, France
- M.L. Chelnokov
- Joint Institute for Nuclear Research, Dubna, 141980, Russia
- V.I. Chepigin
- Joint Institute for Nuclear Research, Dubna, 141980, Russia
- H.M. Devaraja
- Joint Institute for Nuclear Research, Dubna, 141980, Russia
- O. Dorvaux
- Université de Strasbourg, CNRS, IPHC, Strasbourg, UMR7178, 67037, France
- B. Gall
- Université de Strasbourg, CNRS, IPHC, Strasbourg, UMR7178, 67037, France
- K. Hauschild
- IJCLab, IN2P3-CNRS, Université Paris-Saclay, Orsay, UMR9012, 91405, France
- I.N. Izosimov
- Joint Institute for Nuclear Research, Dubna, 141980, Russia
- A.A. Kuznetsova
- Joint Institute for Nuclear Research, Dubna, 141980, Russia
- A. Lopez-Martens
- IJCLab, IN2P3-CNRS, Université Paris-Saclay, Orsay, UMR9012, 91405, France
- O.N. Malyshev
- Joint Institute for Nuclear Research, Dubna, 141980, Russia; Dubna State University, Dubna, 141980, Russia
- A.G. Popeko
- Joint Institute for Nuclear Research, Dubna, 141980, Russia; Dubna State University, Dubna, 141980, Russia
- Yu.A. Popov
- Joint Institute for Nuclear Research, Dubna, 141980, Russia; Dubna State University, Dubna, 141980, Russia
- A. Rahmatinejad
- Joint Institute for Nuclear Research, Dubna, 141980, Russia
- B. Sailaubekov
- Joint Institute for Nuclear Research, Dubna, 141980, Russia; Institute of Nuclear Physics, Almaty, 050032, Kazakhstan; L.N. Gumilyov Eurasian National University, Astana, 010000, Kazakhstan
- T.M. Shneidman
- Joint Institute for Nuclear Research, Dubna, 141980, Russia; Kazan Federal University, Kazan, 420008, Russia
- E.A. Sokol
- Joint Institute for Nuclear Research, Dubna, 141980, Russia
- A.I. Svirikhin
- Joint Institute for Nuclear Research, Dubna, 141980, Russia; Dubna State University, Dubna, 141980, Russia
- M.S. Tezekbayeva
- Joint Institute for Nuclear Research, Dubna, 141980, Russia; Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
- A.V. Yeremin
- Joint Institute for Nuclear Research, Dubna, 141980, Russia; Dubna State University, Dubna, 141980, Russia
- N.I. Zamyatin
- Joint Institute for Nuclear Research, Dubna, 141980, Russia
- Journal volume & issue
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Vol. 843
p. 138008
Abstract
An experimental study of 256Rf spontaneous fission following the fusion reaction of 50Ti+208Pb was performed using the velocity filter SHELS of the Flerov laboratory at JINR. The average number of neutrons of ν‾=4.30±0.17 and variance of σν2=3.2 from the prompt neutron multiplicity distribution were obtained. The alpha decay branching ratio of bα=0.003−0.003+0.005 and the half-life of T1/2=(6.7±0.2) ms of the isotope were determined. For the first time, our neutron detector system allowed us to extend investigation of the prompt neutron multiplicity study to the superheavy element region.
