Photon and neutron dose discrimination using low pressure proportional counters with graphite and A150 walls
2007 (English)In: Radiation Protection Dosimetry, ISSN 0144-8420, Vol. 125, no 1-4, 314-317 p.Article in journal (Refereed) Published
A graphite-walled proportional counter with low neutron sensitivity was used in combination with a tissue-equivalent proportional counter (TEPC) to separate the photon and neutron components in mixed radiation fields. Monte Carlo (MCNP4C) simulations of the photon and neutron responses of the two detectors were done to obtain correction factors for the sensitivity differences. In an alternative method the radiation components were determined using constant-yD-values for typical photon and neutron energy distributions. The results show no significant difference between the two methods and the measured neutron dose-equivalent agrees within ±50% with Bonner sphere determined values. The experimental data were obtained in measurement campaigns organised within the EVIDOS-project.
Place, publisher, year, edition, pages
Oxford University Press , 2007. Vol. 125, no 1-4, 314-317 p.
Radiology, Nuclear Medicine and Medical Imaging
IdentifiersURN: urn:nbn:se:su:diva-24147DOI: 10.1093/rpd/ncm162OAI: oai:DiVA.org:su-24147DiVA: diva2:196870
Part of urn:nbn:se:su:diva-66872007-03-012007-02-262011-01-18Bibliographically approved