Abstract
The dosimetry service Seibersdorf monitors more than 20,000 persons with typical monitoring period of one month. The use of
thermoluminescence (TL)-dosemeters during the last 30 years allows measurements of even low dose values (some 10 lSv)
with sufficient uncertainty. Consideration of the natural background contribution or transport dose which needs to be
subtracted from the measured dose requires special protocols which differ significantly from country to country. The chosen
protocol has not only a strong influence on the individual dose values (especially for low doses) but changes significantly the
whole dose distribution function, as well as the corresponding statistical describing parameters (mean doses, median values,
etc.) of these distributions. On the basis of the measured (uncorrected) distribution function the attempt was made to extract
both the background doses as well as the remaining occupationally caused dose contribution. For this approach the
uncorrected dose values of all customers from several years were analysed and a superposition of two independent log-normal
distributions was assumed. By means of a new unfolding algorithm both components were isolated and the corresponding
parameters were calculated. The paper gives a detailed description of the procedure and summarises the resulting dose
distributions.
Originalsprache | Englisch |
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Seiten (von - bis) | 1-4 |
Seitenumfang | 4 |
Fachzeitschrift | Radiation Protection Dosimetry |
Publikationsstatus | Veröffentlicht - 2007 |
Research Field
- Biosensor Technologies