TANGRA – an experimental setup for basic and applied nuclear research by means of 14.1 MeV neutrons

I Ruskov ,Yury Rogov,Fuad Aliyev,S Oberstedt ,D N Grozdanov ,D I Yurkov ,Yury N Barmakov ,V M Bystritsky ,V M Slepnev ,M G Sapozhnikov ,E P Bogolyubov ,В Н Швецов ,F.‐J Hambsch ,A O Zontikov ,N I Zamyatin ,R Capote Noy ,V Valković ,V R Skoy ,V I Ryzhkov ,Jasmina Obhođaš ,A Sadovsky ,Yury Kopatch

doi:10.1051/epjconf/201714603024

Abstract

For investigation of the basic characteristics of 14.1 MeV neutron induced nuclear reactions on a number of important isotopes for nuclear science and engineering, a new experimental setup TANGRA has been constructed at the Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research in Dubna. For testing its performance, the angular distribution of γ-rays (and neutrons) from the inelastic scattering of 14.1 MeV neutrons on high-purity carbon was measured and the angular anisotropy of γ-rays from the reaction 12 C(n, n′ γ)12 C was determined. This reaction is important from fundamental (differential cross-sections) and practical (non-destructive elemental analysis of materials containing carbon) point of view. The preliminary results for the anisotropy of the γ-ray emission from the inelastic scattering of 14.1- MeV neutrons on carbon are compared with already published literature data. A detailed data analysis for determining the correlations between inelastic scattered neutron and γ-ray emission will be published elsewhere.

Highlights

With existing powerful computing possibility scientists have the opportunity for enhancing nuclear data programs.For investigation of the basic characteristics of 14.1- MeV “tagged” neutron induced nuclear reactions, a new experimental setup TANGRA has been constructed at the Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research in Dubna [1]
For investigation of the basic characteristics of 14.1 MeV neutron induced nuclear reactions on a number of important isotopes for nuclear science and engineering, a new experimental setup TANGRA has been constructed at the Frank Laboratory of Neutron Physics of the Joint Institute for Nuclear Research in Dubna
The tagged neutron method in combination with the NaI(Tl) “Romashka”-system allowed us to measure the angular distribution of 4.4 MeV γ -rays produced in the inelastic scattering of 14.1 MeV neutrons on 12C nuclei by exciting its first (2+) level