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Comparison of various techniques for the exact determination of absorbed dose in heavy ion fields using passive detectors

Berger, Thomas and Reitz, Günther and Hajek, M. and Vana, N. (2006) Comparison of various techniques for the exact determination of absorbed dose in heavy ion fields using passive detectors. Advances in Space Research, 37, pp. 1716-1721. Elsevier.

Full text not available from this repository.

Abstract

Passive thermoluminescent detectors (TLDs) are commonly applied for the determination of absorbed dose in routine radiation protection. The usage of TLDs in heavy ion fields, e.g., in space dosimetry or for treatment planing in radiotherapy, requires the detailed knowledge of the efficiency of these detectors to the ion under study in dependence on the LET of the ion. This is due to the fact, that the detection efficiency of TLDs changes with increasing LET. If the changing efficiency of the TL-material is not taken into account, this would lead to a deviation of the measured absorbed dose. In the framework of the ICCHIBAN project – which was started as an intercomparison of passive and active detector systems used for dose determination in space – ‘‘BLIND’’ exposures were carried out. No information about dose and ion species was given to the investigators. Three different methods were used for the efficiency correction of TLDs after the BLIND exposures. The first method used the different LET efficiency of the TL-materials LiF:Mg, Ti and LiF:Mg, Cu, P to determine the LET and from this LET the efficiency of the LiF:Mg, Ti dosemeters. The second method used the high temperature emissions in LiF:Mg, Ti for the efficiency correction. The third method used a combination of TLDs and CR-39 track etch detectors to determine the total absorbed dose during the BLIND exposures. The paper will discuss the three methods, and focus on their applicability to precise dose determination and recalculation in space dosimetry.

Item URL in elib:https://elib.dlr.de/47240/
Document Type:Article
Title:Comparison of various techniques for the exact determination of absorbed dose in heavy ion fields using passive detectors
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Berger, ThomasUNSPECIFIEDUNSPECIFIED
Reitz, GüntherUNSPECIFIEDUNSPECIFIED
Hajek, M.Atominstitute of the Austrian Universities, Stadionallee 2, 1020 Vienna, AustriaUNSPECIFIED
Vana, N.Atominstitute of the Austrian Universities, Stadionallee 2, 1020 Vienna, AustriaUNSPECIFIED
Date:2006
Journal or Publication Title:Advances in Space Research
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:37
Page Range:pp. 1716-1721
Editors:
EditorsEmail
COSPAR, UNSPECIFIED
Publisher:Elsevier
Status:Published
Keywords:TL-efficiency, Heavy ions, Space dosimetry, Thermoluminescence
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Strahlenbiologie (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:20 Feb 2007
Last Modified:27 Apr 2009 13:30

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