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Monte-Carlo simulation of the operational quantities at the realistic mixed neutron-photon radiation fields CANEL and SIGMA


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Titre du congrès :IM 2005 - European Workshop on Individual Monitoring of Ionising Radiation
Ville du congrès :Vienne
Date du congrès :11/04/2005
Titre de la  revue : Radiation Protection Dosimetry Vol 125 issue 1-4 Pages : 185-188

Type de document > *Congrès/colloque

Mots clés >

Unité de recherche > IRSN/DRPH/SDE/LMDN

Auteurs > GRESSIER Vincent, LACOSTE Véronique

Date de publication > 15/04/2007

Résumé

The Institute for Radiological Protection and Nuclear Safety owns two facilities producing realistic mixed neutron-photon radiation fields, CANEL, an accelerator driven moderator modular device, and SIGMA, a graphite moderated americium-beryllium assembly. These fields are representative of some of those encountered at nuclear workplaces, and the corresponding facilities are designed and used for calibration of various instruments, such as survey meters, personal dosimeters or spectrometric devices. In the framework of the European project EVIDOS, irradiations of personal dosimeters were performed at CANEL and SIGMA. Monte Carlo calculations were performed to estimate the reference values of the personal dose equivalent at both facilities. The Hp(10) values were calculated for three different angular positions, 0°, 45° and 75°, of an ICRU phantom located at the position of irradiation.