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Title: Response of LaBr{sub 3}(Ce) scintillators to 2.5 MeV fusion neutrons

Measurements of the response of LaBr{sub 3}(Ce) to 2.5 MeV neutrons have been carried out at the Frascati Neutron Generator and at tokamak facilities with deuterium plasmas. The observed spectrum has been interpreted by means of a Monte Carlo model. It is found that the main contributor to the measured response is neutron inelastic scattering on {sup 79}Br, {sup 81}Br, and {sup 139}La. An extrapolation of the count rate response to 14 MeV neutrons from deuterium-tritium plasmas is also presented. The results are of relevance for the design of γ-ray diagnostics of fusion burning plasmas.
Authors:
; ;  [1] ;  [2] ; ;  [3] ;  [1] ; ; ;  [4] ;  [5] ;  [6] ; ;
  1. University of Milano Bicocca, Piazza della Scienza 3, Milano 20125 (Italy)
  2. (Italy)
  3. Istituto di Fisica del Plasma, Associazione EURATOM-ENEA-CNR, Via Roberto Cozzi 53, Milano 20125 (Italy)
  4. ENEA, C. R. Frascati, P.O. Box 65, I-00044 Frascati (Italy)
  5. Max-Planck-Institut fuer Plasmaphysik, IPP-Euratom Association, Boltzmann str. 2, D-85748 Garching (Germany)
  6. IAEA Representative at OECD Nuclear Energy Agency 12, Boulevard des Îles, F-92130 Issy-les-Moulineaux (France)
Publication Date:
OSTI Identifier:
22220219
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 84; Journal Issue: 12; Other Information: (c) 2013 Euratom; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BROMINE 79; DEUTERIUM; LANTHANUM 139; LANTHANUM BROMIDES; MEV RANGE 10-100; MONTE CARLO METHOD; NEUTRON GENERATORS; NEUTRONS; PHOSPHORS; PLASMA DIAGNOSTICS; SOLID SCINTILLATION DETECTORS; TOKAMAK DEVICES; TRITIUM