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6. A survey on emergency thyroid monitoring strategies and capacities in Europe and comparison with international recommendations

Author

Monteiro Gil, Octávia, Youngman, Mike, Vaz, Pedro, Angus, Philip, Battisti, Paolo, Berkovskyy, Volodyumyr, Bonchuk, Yuri, Broggio, David, Brudecki, Kamil, Dąbrowski, Krzysztof, de Groot, T.J.H., Fojtík, Pavel, Franck, Didier, Jaworska, Alicja, Jourquin, Flora, Jug, Nina, Kónyi, Júlia K., Krajewska, Grażyna, Lebacq, Anne L., Leenders, Marianne, Lepasson, Monika, Lopez, Maria Antonia, Malátova, Irena, Martins, João O., Meisenberg, Oliver, Ośko, Jakub, Pázmándi, Tamás, Peace, Mark S., Rosário, Pedro, Solný, Pavel, Stenström, Mats, Stoyanov, Orlin, Tormo, Maria Luisa, Urboniene, Ausra, Vagfoldi, Zoltan, Vasilenko, Valentina, Willens, Petra, and Zagyvai, Peter

Published
2019
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7. Assessing 131I in thyroid by non-spectroscopic instruments - A European intercomparison exercise

Author

Isaksson, Mats, Broggio, David, Fojtík, Pavel, Lebacq, Anne Laure, Navarro Amaro, Juan Francisco, Ośko, Jakub, Pérez López, Begoña, Vu, Isabelle, Battisti, Paolo, Börjesson, Jimmy, Carlsson, Marie, Castellani, Carlo Maria, Gårdestig, Magnus, Hill, Peter, Krajewska, Grażyna, Lünendonk, Günter, Meisenberg, Oliver, Stenström, Mats, and El Mantani Ordoulidis, Sokratis

Published
2019
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14. Assessing(131) I in thyroid by non-spectroscopic instruments - A European intercomparison exercise

Author

Isaksson, Mats, Broggio, David, Fojtik, Pavel, Lebacq, Anne Laure, Navarro Amaro, Juan Francisco, Osko, Jakub, Perez Lopez, Begona, Vu, Isabelle, Battisti, Paolo, Borjesson, Jimmy, Carlsson, Marie, Castellani, Carlo Maria, Gårdestig, Magnus, Hill, Peter, Krajewska, Graiyna, Luenendonk, Guenter, Meisenberg, Oliver, Stenstrom, Mats, Ordoulidis, Sokratis El Mantani, Isaksson, Mats, Broggio, David, Fojtik, Pavel, Lebacq, Anne Laure, Navarro Amaro, Juan Francisco, Osko, Jakub, Perez Lopez, Begona, Vu, Isabelle, Battisti, Paolo, Borjesson, Jimmy, Carlsson, Marie, Castellani, Carlo Maria, Gårdestig, Magnus, Hill, Peter, Krajewska, Graiyna, Luenendonk, Guenter, Meisenberg, Oliver, Stenstrom, Mats, and Ordoulidis, Sokratis El Mantani

Abstract

One of the issues of the Open Project for the European Radiation Research Area (OPERRA) was human thyroid monitoring in case of a large scale nuclear accident. This issue was covered in task 5.4 as project "CaThyMARA" (Child and Adult Thyroid Monitoring After Reactor Accident), which included several aspects of thyroid monitoring, e.g. screening of facilities able to perform thyroid monitoring in the European countries, dose estimation, modelling of detector response, and two intercomparison exercises. The intercomparison described in this paper focused on thyroid monitoring by non-spectrometric instruments, including gamma cameras and other instruments that were considered available for measurements made by members of the public. A total of 12 facilities from 7 European countries have participated and 43 various measuring devices have been evaluated. The main conclusion of this intercomparison is that the ability to make assessments of (131) I activity in the thyroid to the exposed population after an accidental release must, on the average, be considered as good among the European laboratories taking part in this study. This intercomparison also gave the participants the possibility to calibrate the measuring devices for thyroid measurements of children where this procedure was not available before. A comprehensive report of the intercomparison is given., Funding Agencies|OPERRA-CAThyMARA project (FP7-Fission-2013 project) within the 7th Framework Programme [604984]; EURADOS Network; WG7 "Internal Dosimetry"

Published
2019
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19. A puzzling case of contamination with241Am

Author

Giussani, Augusto, primary, Nogueira, Pedro, additional, El Faramawy, Nabil, additional, Buchholz, Werner, additional, Gerstmann, Udo C, additional, Hartmann, Martina, additional, Meisenberg, Oliver, additional, Noßke, Dietmar, additional, and Rühm, Werner, additional

Published
2016
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21. Filtration approach to mitigate indoor thoron progeny concentration

Author

JIN WANG, Meisenberg, Oliver, Chen, Yongheng, Karg, Erwin, and Tschiersch, Jochen

Subjects
filtration, thoron progeny, potential alpha energy concentration (PAEC), equilibrium equivalent concentration (EEC), mitigation
Abstract

This study investigates filtration of air as potential mitigation method of thoron progeny exposure. The experiments were conducted in a model room (volume 7.1 m(3)) which was equipped with a pump and an HEPA (high efficiency particulate air) filter. Filtration at a rate of 0.2, 0.4, 0.5 and 0.8 h(-1) during 88 h proved an effective practice in reducing the total indoor thoron decay product concentration. The results indicate that 0.4-0.8 h(-1) filtration rate had almost the same filtration efficiency in decreasing the total thoron EEC (equilibrium equivalent concentration) by 97% while 80% of total thoron EEC were reduced by 0.2 h(-1) filtration rate; meanwhile, the unattached thoron EEC rose significantly by 190, 270, 290%, respectively under 0.4-0.8 h(-1) filtration rate, whereas 0.2 h-1 filtration rate increased unattached thoron EEC by 40%. The aerosol number size distribution variation reveals that filtration operation removes smaller particles faster or earlier than the larger ones. The annual effective dose calculated was reduced by 91-92% at a filtration rate of 0.4-0.8 h-1 while 75% reduced at 0.2 h(-1) filtration rate after 88 h filtration process.

Published
2010

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