Title: A Multi-detector NaI(Tl) Gamma-ray Spectrometry System for Investigation of Neutron Induced Capture and Fission Reactions
Citation: PHYSICS PROCEDIA vol. 59 p. 107-113
Publisher: ELSEVIER BV
Publication Year: 2014
JRC N°: JRC105396
ISSN: 1875-3892
URI: http://www.sciencedirect.com/science/article/pii/S1875389214004921?via%3Dihub
DOI: 10.1016/j.phpro.2014.10.017
Type: Articles in periodicals and books
Abstract: At the Joint Institute for Nuclear Research (JINR) Frank Laboratory of Neutron Physics (FLNP), a new multi-detector gamma-ray spectrometry system (MDGRSS) was constructed. It consists of 24 hexagonal NaI(Tl) detectors, arranged in two cylindrical arrays of variable diameter and distance between them. Test measurements with the MDGRSS are going on at one of the neutron beam-lines of the pulsed white-spectrum neutron source IREN. Some preliminary results from a measurement of the resonance-neutron flux density at IREN 60m flight-path station, using 181Ta(n,γ) reaction, are reported. In combination with a multi-section parallel-plate gas-ionization chamber as a fission fragment detector, positioned in the centre of the system, it is possible to investigate the neutron-induced capture and fission reactions on a number of heavy isotopes, important for fundamental and applied neutron and nuclear physics.
JRC Directorate:Nuclear Safety and Security

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