Thyroid screening of members of the public for iodine isotopes with portable NaI detectors

In the case of an accident in a nuclear power plant with radionuclide releases to the environment, members of the public with possible internal contamination with radioactive isotopes of iodine should be screened to identify cases where a more detailed evaluation and medical follow-up is necessary....

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Main Author: John Graham Hunt
Format: Article
Language:English
Published: Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) 2015-05-01
Series:Brazilian Journal of Radiation Sciences
Subjects:
Online Access:https://bjrs.org.br/revista/index.php/REVISTA/article/view/121
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author John Graham Hunt
author_facet John Graham Hunt
author_sort John Graham Hunt
collection DOAJ
description In the case of an accident in a nuclear power plant with radionuclide releases to the environment, members of the public with possible internal contamination with radioactive isotopes of iodine should be screened to identify cases where a more detailed evaluation and medical follow-up is necessary. Screening of large numbers of the public can be performed with a quick measuring protocol using hand held unshielded NaI based detectors giving results in cps. The screening geometry was simulated using the Monte Carlo code Visual Monte Carlo. The results show that for a geometry with the NaI detector near the skin in front of the thyroid, the interference of the gamma radiation coming from other radionuclides released in the accident either deposited in the lung or in the whole body is sufficiently low to allow thyroid screening criteria to be established. The screening criteria were developed using 5, 10 and 15 year old hybrid phantoms and for the adult male based on the ICRP reference voxel phantom.
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language English
publishDate 2015-05-01
publisher Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)
record_format Article
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spelling doaj-art-7722abfbc3b6436f8836ed6371c8f0242025-08-20T02:39:41ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122015-05-0131A (Suppl.)10.15392/bjrs.v3i1A.12194Thyroid screening of members of the public for iodine isotopes with portable NaI detectorsJohn Graham Hunt0IRD/CNENIn the case of an accident in a nuclear power plant with radionuclide releases to the environment, members of the public with possible internal contamination with radioactive isotopes of iodine should be screened to identify cases where a more detailed evaluation and medical follow-up is necessary. Screening of large numbers of the public can be performed with a quick measuring protocol using hand held unshielded NaI based detectors giving results in cps. The screening geometry was simulated using the Monte Carlo code Visual Monte Carlo. The results show that for a geometry with the NaI detector near the skin in front of the thyroid, the interference of the gamma radiation coming from other radionuclides released in the accident either deposited in the lung or in the whole body is sufficiently low to allow thyroid screening criteria to be established. The screening criteria were developed using 5, 10 and 15 year old hybrid phantoms and for the adult male based on the ICRP reference voxel phantom.https://bjrs.org.br/revista/index.php/REVISTA/article/view/121emergency screeningmonte carlovoxel phantoms
spellingShingle John Graham Hunt
Thyroid screening of members of the public for iodine isotopes with portable NaI detectors
Brazilian Journal of Radiation Sciences
emergency screening
monte carlo
voxel phantoms
title Thyroid screening of members of the public for iodine isotopes with portable NaI detectors
title_full Thyroid screening of members of the public for iodine isotopes with portable NaI detectors
title_fullStr Thyroid screening of members of the public for iodine isotopes with portable NaI detectors
title_full_unstemmed Thyroid screening of members of the public for iodine isotopes with portable NaI detectors
title_short Thyroid screening of members of the public for iodine isotopes with portable NaI detectors
title_sort thyroid screening of members of the public for iodine isotopes with portable nai detectors
topic emergency screening
monte carlo
voxel phantoms
url https://bjrs.org.br/revista/index.php/REVISTA/article/view/121
work_keys_str_mv AT johngrahamhunt thyroidscreeningofmembersofthepublicforiodineisotopeswithportablenaidetectors