Document Detail


Pulsed Photon-Stimulated Luminescence (PPSL) as a tool in retrospective dosimetry.
MedLine Citation:
PMID:  20085899     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The analysis of luminescence of minerals extracted from pottery and bricks is a well-known tool in retrospective dosimetry. In the past, the detection limit of this method has been reported to lie in general in the order of magnitude of about 10 mGy. For most applications in accidental dosimetry, this is more than sufficient. Still there are some applications, such as the determination of the natural dose if the samples are comparatively young and the doses involved are small (e.g. in epidemiological studies), where the possibility of determining much smaller doses is desirable. As the detection limit is often defined by the measurement background, in this study the application of the 'SURRC Pulsed Photostimulated Luminescence (PPSL) Irradiated Food Screening System (SURRC PPSL Irradiated Food Screening System)', where the measurement background is suppressed in a very innovative way, was tested for dosimetric purposes. Therefore, the luminescence parameters were determined for a set of nine samples of modern bricks. It was found that depending on individual samples, it was possible to determine values as small as a few 100 microGy. Herewith a new application for the 'SURRC PPSL Irradiated Food Screening System' presented itself and further applications in dose reconstruction became available. As to the dosimetric properties of the sample material, it was found that although all the samples were from different brickmakers and places throughout Germany, surprisingly the luminescence parameters were similar, so that it was possible to define a generalised measurement sequence. An interpretation is given.
Authors:
M Niedermayer; A Bayer
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Publication Detail:
Type:  Evaluation Studies; Journal Article     Date:  2010-01-18
Journal Detail:
Title:  Radiation protection dosimetry     Volume:  139     ISSN:  1742-3406     ISO Abbreviation:  Radiat Prot Dosimetry     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-06-04     Completed Date:  2010-10-08     Revised Date:  2010-11-10    
Medline Journal Info:
Nlm Unique ID:  8109958     Medline TA:  Radiat Prot Dosimetry     Country:  England    
Other Details:
Languages:  eng     Pagination:  494-504     Citation Subset:  IM    
Affiliation:
TUV SUD Industry Services, Westendstrasse 199, 80686 München, Germany. Matthias.Niedermayer@tuev-sued.de
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MeSH Terms
Descriptor/Qualifier:
Algorithms*
Construction Materials / analysis*
Materials Testing / instrumentation,  methods*
Photons
Radioisotopes / analysis*
Reproducibility of Results
Sensitivity and Specificity
Signal Processing, Computer-Assisted*
Thermoluminescent Dosimetry / instrumentation,  methods*
Chemical
Reg. No./Substance:
0/Radioisotopes

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