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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Comparison of EPR occupational lifetime external dose assessments for Mayak nuclear workers and film badge dose data
Radiation and Environmental Biophysics, Volume 44, No. 4, Year 2006
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Description
The Mayak worker cohort is one of the major sources of information on health risks due to protracted exposures to plutonium and external ionizing radiation. Electron paramagnetic resonance (EPR) measurements in tooth enamel in combination with personal dose monitoring can help to improve external dose assessment for this cohort. Here, the occupational lifetime external exposure was evaluated individually for 44 nuclear workers of three plants of the Mayak Production Association by EPR measurements of absorbed doses in collected tooth enamel samples. Analysis included consideration of individual background doses in enamel and dose conversion coefficients specific for photon spectra at selected work areas. As a control, background doses were assessed for various age groups by EPR measurements on teeth from non-occupationally exposed Ozyorsk residents. Differences in occupational lifetime doses estimated from the film badges and from enamel for the Mayak workers were found to depend on the type of film badge and the selected plant. For those who worked at the radiochemical processing plant and who were monitored with IFK film badges, the dose was on average 570 mGy larger than estimated from the EPR measurements. However, the average difference was found to be only -4 and 6 mGy for those who were monitored with IFKU film badges and worked at the reactor and the isotope production plant respectively. The discrepancies observed in the dose estimates are attributed to a bias in film badge evaluation. © Springer-Verlag 2006.
Authors & Co-Authors
Wieser, Albrecht
Germany, Oberschleissheim
Helmholtz Center Munich German Research Center for Environmental Health
Fattibene, Paola
Italy, Rome
Istituto Superiore Di Sanita
El-Faramawy, Nabil A.
Germany, Oberschleissheim
Helmholtz Center Munich German Research Center for Environmental Health
Statistics
Citations: 28
Authors: 3
Affiliations: 5
Identifiers
Doi:
10.1007/s00411-005-0024-1
ISSN:
0301634X
Research Areas
Cancer
Study Design
Cohort Study