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pubmed-article:15353619pubmed:dateCreated2004-9-8lld:pubmed
pubmed-article:15353619pubmed:abstractTextAt the ENEA Radiation Protection Institute in Bologna a thermal neutron irradiation facility is available for the calibration of neutron dosemeters. It consists of a 1 m x 1 m x 1 m polyethylene cube containing three 241Am-Be sources of about 185 GBq. The cube contains three co-axial cylindrical calibration cavities of different dimension. Due to their limited dimensions, the cavities do not allow the calibration of thermal neutron personal dosemeters in terms of Personal Dose Equivalent Hp(d), that should be carried out on the 30 cm x 30 cm x 15 cm ISO phantom. The study herewith presented was addressed at adapting the facility for external irradiation of personal dosemeters on the ISO phantom. Extensive Monte Carlo studies were carried out to characterise the neutron fluence spatial distribution along the front face of the phantom. A satisfying neutron field homogeneity within the measurement area has been obtained by means of a pyramidal polyethylene fluence flattening filter and the selection of the proper cube to phantom distance. This new irradiation set-up was experimentally tested through measurements with activation foils, according to the spatial mapping array taken from the calculations.lld:pubmed
pubmed-article:15353619pubmed:languageenglld:pubmed
pubmed-article:15353619pubmed:journalhttp://linkedlifedata.com/r...lld:pubmed
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pubmed-article:15353619pubmed:statusMEDLINElld:pubmed
pubmed-article:15353619pubmed:issn0144-8420lld:pubmed
pubmed-article:15353619pubmed:authorpubmed-author:GualdriniGGlld:pubmed
pubmed-article:15353619pubmed:authorpubmed-author:BedogniRRlld:pubmed
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pubmed-article:15353619pubmed:volume110lld:pubmed
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pubmed-article:15353619pubmed:pagination43-8lld:pubmed
pubmed-article:15353619pubmed:dateRevised2006-11-15lld:pubmed
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pubmed-article:15353619pubmed:year2004lld:pubmed
pubmed-article:15353619pubmed:articleTitleDeveloping a thermal neutron irradiation system for the calibration of personal dosemeters in terms of Hp(10).lld:pubmed
pubmed-article:15353619pubmed:affiliationENEA--Italian National Agency for New Technologies, Energy and the Environment, Radiation Protection Institute, 16, via dei Colli, 40136 Bologna, Italy. guald@bologna.enea.itlld:pubmed
pubmed-article:15353619pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:15353619pubmed:publicationTypeComparative Studylld:pubmed
pubmed-article:15353619pubmed:publicationTypeEvaluation Studieslld:pubmed
pubmed-article:15353619pubmed:publicationTypeValidation Studieslld:pubmed