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Energy and direction distribution of neutrons in workplace fields : implication of the results from the EVIDOS project for the set-up of simulated workplace fields


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Titre du congrès :NEUDOS 10 
Ville du congrès :Uppsala
Date du congrès :12/06/2006
Titre de la revue : Radiation Protection Dosimetry 126 issue 1-4 Pages 151-154

Type de document > *Congrès/colloque

Mots clés >

Unité de recherche > IRSN/DRPH/SDE/LMDN

Auteurs > LACOSTE Véronique, LUSZIK-BHADRA Marlies, REGINATTO Marcel, ZIMBAL Andreas

Date de publication > 01/08/2007

Résumé

Workplace neutron spectra from nuclear facilities obtained within the European project EVIDOS are compared with those of the simulated workplace fields CANEL and SIGMA and fields set-up with radionuclide sources at the PTB. Contributions of neutrons to ambient dose equivalent and personal dose equivalent are given in three energy intervals (for thermal, intermediate and fast neutrons) together with the corresponding direction distribution, characterised by three different types of distributions (isotropic, weakly directed and directed). The comparison shows that none of the simulated workplace fields investigated here can model all the characteristics of the fields observed at power reactors.