/ physics.acc-ph FERMILAB-PUB-16-215-APC

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

Adam, J. (Rez, Nucl. Phys. Inst.) ; Chilap, V.V. ; Furman, V.I. ; Kadykov, M.G. ; Khushvaktov, J. ; Solnyshkin, A.A. ; Stegailov, V.I. ; Suchopar, M. ; Tsoupko-Sitnikov, V.M. ; Tyutyunnikov, S.I. ; Vrzalova, J. ; Wagner, V. ; Zavorka, L. ; Pronskikh, V.S. (Dubna, JINR)

Year: 2016
Vol.: 107
Page No: 225-233
Pages: 25
Year: 2015-11-04

Abstract: The natural uranium assembly, "QUINTA", was irradiated with 2, 4, and 8 GeV deuterons. The $^{232}$Th, $^{127}$I, and $^{129}$I samples have been exposed to secondary neutrons produced in the assembly at a 20-cm radial distance from the deuteron beam axis. The spectra of gamma rays emitted by the activated $^{232}$Th, $^{127}$I, and $^{129}$I samples have been analyzed and several tens of product nuclei have been identified. For each of those products, neutron-induced reaction rates have been determined. The transmutation power for the $^{129}$I samples is estimated. Experimental results were compared to those calculated with well-known stochastic and deterministic codes.

Note: 25 pp

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