A study of reaction rates of (n, f ) , (n, $ \gamma$ ) and (n, 2n) reactions in natU and 232Th by the neutron fluence produced in the graphite set-up (GAMMA-3) irradiated by 2.33 GeV deuteron beam

Study of secondary neutron interactions with 232 Th, 129 I, and 127 I nuclei with the uranium assembly “QUINTA” at 2, 4, and 8 GeV deuteron beams of the JINR Nuclotron accelerator

“…The reaction rate (n,γ) R = 3.03(10)E-26 and fission (n,f) R = 5.89(60)E-27 -3 and 10 times higher than results of this work at 2 GeV. Also interesting comparison with the work [17], made at a deuteron energy of 2.33 GeV at the setup "GAMMA-3": a lead target (d = 8 cm, l = 60 cm) in the carbon moderator with large size, channels for samples at different distances from the center of the target. Results for R -(n,γ) in a yield of 233Pa (will eventually 233U) is 30-40 times higher and fission (n, f) -20 -30 times higher than present work for the nearest window on carbon (24 cm from the axis target).…”

“…This program was carried out a large number of experiments on subcritical uranium-lead target "QUINTA" [15,16], as well as lead-graphite target "GAMMA-3" [17]. Several experiments were carried out using a solid lead target "GENERATOR" [18,19,20] with proton beam Phasotron DLNP JINR.…”

Study of 232 Th(n,γ) and 232 Th(n,f) reaction rates in a graphite moderated spallation neutron field produced by 1.6 GeV deuterons on lead target

“…Earlier works have also shown mixed agreements between experimental and Monte Carlo studies e.g. the calculated 232 Th(n,c) reaction rate is more than two times higher, and the 232 Th(n,f) reaction rate is less than half the experimentally measured rate [8].…”

“…Neutron transport cross section libraries were from the ENDF/B-VII.0 evaluation [31] and the S(a; b) thermal tables for graphite were also implemented to correctly represent thermal neutron scattering. The INCL4 intra-nuclear cascade model [32] and the ABLA fission-evaporation model [33] were chosen here to provide consistency with previous simulations of related experimental set-ups including Gamma-3 [8,10], Energy Plus Transmutation set-up [28,34,35] and Quinta assembly [22].…”

Current research on ADS at the Joint Institute for Nuclear Research

“…The target was made of lead surrounded with 25 graphite blocks. The parameters of the set-up were 1100 x 1100 x 600 mm 3 . The GAMMA-3 was irradiated with relativistic beams at Nuclotron accelerator [3].…”