Shielding effectiveness of X-ray protective garment |
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| Affiliation: | 1. Formerly Bavarian Environment Agency, priv. Am Stadtpark 43, D-81243 München, Germany;2. Helmholtz Zentrum München, Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH), Ingolstädter Landstraße 1, D-85764 Neuherberg, Germany;1. Center for Evidence-Based Imaging (CEBI), Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA;2. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA;3. Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA;4. Takeda Pharmaceuticals, Boston, MA, USA;1. School of Physics, National University of Ireland, Galway, Ireland;2. Department of Medical Physics and Clinical Engineering, St Vincent’s University Hospital, Dublin 4, Ireland;1. Higher Institute of Medical Technologies of Tunis, Tunis El Manar University, Tunisia;2. Nuclear Physics and High Energy Unit, Faculty of Sciences of Tunis, Tunis El Manar University, Tunisia;3. University Hospital Center of Bordeaux. Bordeaux, France;4. Université de Bordeaux, CNRS/IN2P3, UMR5797, Centre d’Études Nucléaires de Bordeaux Gradignan, 33175 Gradignan, France;1. Physics Department of Kaunas University of Technology. Studentų Str. 50, Kaunas, Lithuania;2. Faculty of Chemical Technology of Kaunas University of Technology, Radvilėnų pl. 19, Kaunas, Lithuania;1. School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA 6027, Australia;2. School of Mechanical and Chemical Engineering, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia;3. Department of Medical Engineering and Physics, Royal Perth Hospital, 197 Wellington St, WA 6000, Australia;4. Can Tho University of Technology, 256 Nguyen Van Cu Street, Can Tho 900000, Viet Nam |
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| Abstract: | PurposeCertification of the X-ray shielding garment is based on attenuation testing on flat material samples. We investigated the difference of shielding effectiveness compared to realistic use when the garment is worn on the body of a staff person.MethodsAttenuation factors of X-ray protective aprons have been evaluated for several clinical scenarios with Monte Carlo (MC) calculations based on the ICRP female reference model and an experimental setup. The MC calculated attenuation factors refer to the effective dose E, whereas the measured attenuation factors refer to the personal dose equivalent Hp(10). The calculated/measured factors were compared to the attenuation factors of the identical materials measured under the conditions of the standard IEC 61331-1 that is currently in use for the type testing of X-ray protective aprons.ResultsAs a result, for example, at a common tube voltage of 80 kV, the real attenuation factors of a 0.35 mm Pb apron worn by a 3-dimensional body were 38% to 76% higher than when measured under IEC conditions on flat samples. The MC-calculated organ doses show the maximum contribution to E being within the operatoŕs abdomen/pelvis region.ConclusionsWith our findings, personal X-ray protective garments could be improved in effectiveness. |
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| Keywords: | Protective garment Attenuation factor Effective dose Organ doses |
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