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Dosimetric and spectrometric neutron measurements around an annular vessel containing a plutonium nitrate fissile solution


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Tourniera B., Itie C., Medioni R., Rich C., Mussoni F., Camus L., Pichenot G., Crovisier P., Cutarella D., Asselineau B., Groetz J-E. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 476(1-2), 440-445

Type de document > *Article de revue

Mots clés > dosimétrie externe, méthodologie, neutrons

Unité de recherche > Laboratoire de recherches en dosimétrie externe (LRDE)

Auteurs > ASSELINEAU Bruno, ITIE Christian

Date de publication > 01/01/2002

Résumé

The new ICPR60 recommendations and the consideration of the ALARA principle have led the operators of nuclear facilities to evaluate with a higher care, the doses received by workers. The aim of this paper is to present a recent study concerning mixed field characterisation at a workplace located in a reprocessing laboratory. As a first step, neutron spectrum determination was achieved by two ways: simulation using MCNP code and experimental measurements with Bonner spheres and recoil proton counters. Neutron spectrum allowed the evaluation of dosimetric quantities. Measurements were then performed with different devices routinely used in radioprotection. The authors describe the measurement techniques, present the results obtained, and finally compare and discuss them. (C) 2002 Elsevier Science B.V. All rights reserved.