Response of LaBr3(Ce) scintillators to 2.5 MeV fusion neutrons

C Cazzaniga; M Nocente; M Tardocchi; G Croci; L Giacomelli; M Angelone; M Pillon; S Villari; A Weller; L Petrizzi; G Gorini; ASDEX Upgrade Team; JET-EFDA Contributors

doi:10.1063/1.4847056

Response of LaBr3(Ce) scintillators to 2.5 MeV fusion neutrons

Rev Sci Instrum. 2013 Dec;84(12):123505. doi: 10.1063/1.4847056.

Authors

Affiliations

¹ University of Milano Bicocca, Piazza della Scienza 3, Milano 20125, Italy.
² Istituto di Fisica del Plasma, Associazione EURATOM-ENEA-CNR, Via Roberto Cozzi 53, Milano 20125, Italy.
³ ENEA, C. R. Frascati, P.O. Box 65, I-00044 Frascati, Italy.
⁴ Max-Planck-Institut fuer Plasmaphysik, IPP-Euratom Association, Boltzmann str. 2, D-85748 Garching, Germany.
⁵ IAEA Representative at OECD Nuclear Energy Agency 12, Boulevard des I^les, F-92130 Issy-les-Moulineaux, France.

PMID: 24393076
DOI: 10.1063/1.4847056

Abstract

Measurements of the response of LaBr3(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 (79)Br, (81)Br, and (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.