Establishing local workplace field correction factors for neutron personal dosemeters

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Abstract

The present personal neutron dosemeters still need local correction factors to be able to provide accuracy comparable with photon dosemeters. Characterisation of the local neutron field is an indispensable part of neutron dosimetry to obtain such correction factors. It is often overlooked that besides characterisation in the neutron energy also the directional distribution of neutrons plays a crucial part in this characterisation. The authors have done such characterisation in the energy and angle for four workplace fields in Paks NPP. For this a relatively simple approximation method was used using the Nprobe for the energy distribution and measurements on the six sides of the slab phantom with personal dosemeters for the directional distribution. This allowed one to estimate a reference neutron Hp(10) rate and to compare it with the response of several neutron personal dosemeters.

Details

Original languageEnglish
Pages (from-to)307-311
JournalRadiation protection dosimetry
Volume161
Issue number1-4
DOIs
Publication statusPublished - Oct 2014
EventNEUDOS 2013 -12th Symposium on Neutron and Ion Dosimetry - IRSN- Institut de Radioprotection et de Sûreté Nucléaire, Aix-en-provence, France
Duration: 3 Jun 20137 Jun 2013

Keywords

  • personal neutron dosemeter, local correction factors, characterisation

ID: 340415