Gamma spectrometry analysis of radioiodine in charcoal from high volume aerosol samples

Autor:	D. O Brien, Christopher Ian Burbidge, O. Hanley, L. Nolan, L. León Vintró, Lorraine Currivan, N.M. Murphy
Rok vydání:	2021
Předmět:	Radiation Materials science Radiochemistry Mixing (process engineering) chemistry.chemical_element Germanium Contamination Mass spectrometry Aerosol Matrix (chemical analysis) Volume (thermodynamics) chemistry visual_art visual_art.visual_art_medium Charcoal
Zdroj:	Applied Radiation and Isotopes. 178:109984
ISSN:	0969-8043
DOI:	10.1016/j.apradiso.2021.109984
Popis:	Following accidental releases, gamma spectrometry of impregnated charcoal filters is used to measure gaseous 131I contamination, but is subject to sampling inhomogeneity. In this study two germanium detectors are calibrated using a charcoal multi-gamma standard. Activities in samples spiked with a matrix of 131I aliquots are compared based on measurement, spike known activity, and monte-carlo simulation, and used to test a simple mixing method. Measurement efficiency, and removal of 11% inhomogeneity effect by mixing, was successfully reproduced in GESPECOR calculations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68d514f303b52fcdca96ef07ef6c1b42 https://doi.org/10.1016/j.apradiso.2021.109984 Zobrazit plný text záznamu Full Text from ScienceDirect