A neutron spectrometer using nested moderators

Par Conseil national de recherches du Canada

DOI	Trouver le DOI : https://doi.org/10.1093/rpd/ncr381
Auteur	Rechercher : Dubeau, J.; Rechercher : Hakmana Witharana, S. S.; Rechercher : Atanackovic, J.; Rechercher : Yonkeu, A.; Rechercher : Archambault, J. P.¹
Affiliation	Conseil national de recherches du Canada. Institut des étalons nationaux de mesure du CNRC
Format	Texte, Article
Sujet	polyethylene; chemistry; equipment design; instrumentation; methodology; neutron; radiation dose; radiation protection; spectroscopy; Equipment Design; Neutrons; Polyethylene; Radiation Dosage; Radiation Protection; Spectrum Analysis
Résumé	The design, simulation results and measurements of a new neutron energy spectrometer are presented. The device, which may be called NNS, for Nested Neutron Spectrometer, works under the same principles as a Bonner Sphere Spectrometer (BSS) System, i.e. whereby a thermal neutron detector is surrounded by a polyethylene moderator. However, the moderator is cylindrical in shape. The different thicknesses of moderator are created by inserting one cylinder into another, much like nested Russian dolls. This design results in a much lighter instrument that is also easier to use in the field. Simulations and measurements show that, despite its shape, the device can be made to offer a near angular isotropic response to neutrons and that unfolded neutron spectra are in agreement with those obtained with a more traditional BSS.
Date de publication	2011-09-28
Dans	Radiation Protection Dosimetry 150, nº 2, ncr381 (28 septembre 2011) : 217–222.
Langue	anglais
Publications évaluées par des pairs	Oui
Numéro NPARC	21270201
Exporter la notice	Exporter en format RIS
Signaler une correction	Signaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement	e199cec4-b682-4402-87a2-aaedfb4e3871
Enregistrement créé	2014-01-10
Enregistrement modifié	2020-04-21

Date de modification :: 2024-07-21