Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10730219 | Applied Radiation and Isotopes | 2005 | 9 Pages |
Abstract
The objective of the 3rd International Intercomparison on Electron Paramagnetic Resonance (EPR) Tooth Dosimetry was the evaluation of laboratories performing tooth enamel dosimetry below 300Â mGy. Participants had to reconstruct the absorbed dose in tooth enamel from 11 molars, which were cut into two halves. One half of each tooth was irradiated in a 60Co beam to doses in the ranges of 30-100Â mGy (5 samples), 100-300Â mGy (5 samples), and 300-900Â mGy (1 sample). Fourteen international laboratories participated in this intercomparison programme. A first analysis of the results and an overview of the essential features of methods applied in different laboratories are presented. The relative standard deviation of results of all methods was better than 27% for applied doses in the range of 79-704Â mGy. In the analysis of the unirradiated tooth halves 8% of the samples were identified as outliers with additional absorbed dose above background dose.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
A. Wieser, R. Debuyst, P. Fattibene, A. Meghzifene, S. Onori, S.N. Bayankin, B. Blackwell, A. Brik, A. Bugay, V. Chumak, B. Ciesielski, M. Hoshi, H. Imata, A. Ivannikov, D. Ivanov, M. Junczewska, C. Miyazawa, B. Pass, F. Trompier,