Speaker
Dr
Andrey Isaev
(JINR)
Description
A new detector system aimed to study spontaneous fission properties of short-lived nuclei was created. The system consists of DSSSD array surrounded by 116 $^3$He-counters of neutrons. Focal plane DSSSD has 128$\times$128 strips and 100$\times$100 mm$^{2}$ area. Single neutron registration efficiency of counters assembly was measured as 54.7$\pm$0.1% with using $^{248}$Cm-source. The setup was tested in June 2021 during an experiment on SHELS separator. The characteristics of spontaneous fission of the $^{252}$No isotope were studied. $^{252}$No prompt neutrons multiplicity distribution were obtained and then also was restored using Tikhonov statistical regularisation method.
Primary authors
Dr
Andrey Isaev
(JINR)
Alexander Yeremin
(Flerov Laboratory of Nuclear Reactions JINR)
Nikolay Zamyatin
(JINR)
Igor Izosimov
(Joint Institute for Nuclear Research)
Mrs
Alena Kuznetsova
(JINR)
Mr
Oleg Malyshev
(FLNR)
Roman Mukhin
Andrey Popeko
(FLNR)
Yury Popov
(FLNR)
Bekzat Sailaubekov
(Sailaubekyli)
Alexandr Svirikhin
(Joint Institute for Nuclear Research)
Evgeni Sokol
(FLNR)
Mereigul Tezekbayeva
(FLNP, JINR)
Dmitry Testov
(JINR)
Maxim Chelnokov
(FLNR)
Victor Chepigin
(JINR)
Stanislav Antalic
(Comenius University)
Pavol Mosat
(FLNR)
Pierre Brionnet
(IPHC, IN2P3-CNRS)
Benoit Gall
(IPHC, IN2P3-CNRS)
Olivier Dorvaux
(IPHC, IN2P3-CNRS)
Kieran Kessaci
(IPHC, IN2P3-CNRS)
Addil Sellam
(IPHC, IN2P3-CNRS)
Araceli Lopez-Martens
(IJCLab, IN2P3-CNRS)
Karl Hauschild
(IJCLab, IN2P3-CNRS)
