Computational analysis of thermoluminescence glow curves from thin layer dosemeters
| Autor: | Kevin Kröninger, A. Lütfring, R. Theinert, Jörg Walbersloh |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Radiation
Materials science business.industry Thin layer Analytical chemistry 02 engineering and technology 021001 nanoscience & nanotechnology Thermoluminescence 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Optics Dosimetry Individual dose Irradiation Computational analysis 0210 nano-technology business Instrumentation |
| Zdroj: | Radiation Measurements. 106:252-256 |
| ISSN: | 1350-4487 |
| DOI: | 10.1016/j.radmeas.2017.05.002 |
| Popis: | The Monitoring Service at the Materialprufungsamt Nordrhein-Westfalen in Dortmund develops a new dosemeter system for large-scale individual dose monitoring. The dosemeters make use of thermoluminescence light from a thin layer of LiF:Mg,Ti. In the large-scale routine dosimetry service, a high number of dosemeters have to be evaluated on a monthly basis, which requires a fast readout. Therefore, thermoluminescence is stimulated by exponential heating of the dosemeters. The main quantity of interest to obtain from a dosemeter is the irradiation dose. Since the data comes in the form of thermoluminescence glow curves, their analysis offers the possibility to extract more information from the data than the irradiation dose, e.g. the fading time. In addition, such an analysis can reduce the uncertainties of the reconstructed irradiation dose, especially for low irradiation doses. Because it is not possible to measure the temperature of the dosemeter during the readout process, the recorded time-dependent glow curves have to be converted to temperature-dependent glow curves before the analysis. |
| Databáze: | OpenAIRE |
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