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Use of electron paramagnetic resonance dosimetry with tooth enamel for retrospective dose assessment. Report of a co-ordinated research project

Abstract

Electron paramagnetic resonance (EPR) dosimetry is a physical method for the assessment of absorbed dose from ionising radiation. It is based on the measurement of stable radiation induced radicals in human calcified tissues (primarily in tooth enamel). EPR dosimetry with teeth is now firmly established in retrospective dosimetry. It is a powerful method for providing information on exposure to ionising radiation many years after the event, since the 'signal' is 'stored' in the tooth or the bone. This technique is of particular relevance to relatively low dose exposures or when the results of conventional dosimetry are not available (e.g. in accidental circumstances). The use of EPR dosimetry, as an essential tool for retrospective assessment of radiation exposure is an important part of radioepidemiological studies and also provides data to select appropriate countermeasures based on retrospective evaluation of individual doses. Despite well established regulations and protocols for maintaining radiation protection dose limits, the assurance that these limits will not be exceeded cannot be guaranteed, thus providing new challenges for development of accurate methods of individual dose assessment. To meet some of these challenges, in 1998 the IAEA initiated a co-ordinated research project (CRP) with the objective to review the available methods,  More>>
Publication Date:
Dec 01, 2002
Product Type:
Technical Report
Report Number:
IAEA-TECDOC-1331
Resource Relation:
Other Information: 141 refs, figs, 5 tabs; PBD: Dec 2002
Subject:
61 RADIATION PROTECTION AND DOSIMETRY; CALCULATION METHODS; COORDINATED RESEARCH PROGRAMS; DOSE COMMITMENTS; DOSIMETRY; ELECTRON SPIN RESONANCE; ENAMELS; EPR SPECTROMETERS; RADIATION DOSES; TEETH
OSTI ID:
20325454
Research Organizations:
International Atomic Energy Agency, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISBN 92-0-119402-1; ISSN 1011-4289; TRN: XA0300325014758
Availability:
Available from INIS in electronic form; Also available on-line: http://www-pub.iaea.org/MTCD/publications/PDF/te_1331_web.pdf
Submitting Site:
INIS
Size:
63 pages
Announcement Date:
Mar 04, 2003

Citation Formats

None. Use of electron paramagnetic resonance dosimetry with tooth enamel for retrospective dose assessment. Report of a co-ordinated research project. IAEA: N. p., 2002. Web.
None. Use of electron paramagnetic resonance dosimetry with tooth enamel for retrospective dose assessment. Report of a co-ordinated research project. IAEA.
None. 2002. "Use of electron paramagnetic resonance dosimetry with tooth enamel for retrospective dose assessment. Report of a co-ordinated research project." IAEA.
@misc{etde_20325454,
title = {Use of electron paramagnetic resonance dosimetry with tooth enamel for retrospective dose assessment. Report of a co-ordinated research project}
author = {None}
abstractNote = {Electron paramagnetic resonance (EPR) dosimetry is a physical method for the assessment of absorbed dose from ionising radiation. It is based on the measurement of stable radiation induced radicals in human calcified tissues (primarily in tooth enamel). EPR dosimetry with teeth is now firmly established in retrospective dosimetry. It is a powerful method for providing information on exposure to ionising radiation many years after the event, since the 'signal' is 'stored' in the tooth or the bone. This technique is of particular relevance to relatively low dose exposures or when the results of conventional dosimetry are not available (e.g. in accidental circumstances). The use of EPR dosimetry, as an essential tool for retrospective assessment of radiation exposure is an important part of radioepidemiological studies and also provides data to select appropriate countermeasures based on retrospective evaluation of individual doses. Despite well established regulations and protocols for maintaining radiation protection dose limits, the assurance that these limits will not be exceeded cannot be guaranteed, thus providing new challenges for development of accurate methods of individual dose assessment. To meet some of these challenges, in 1998 the IAEA initiated a co-ordinated research project (CRP) with the objective to review the available methods, current research and development in EPR biodosimetry technology, which may be of practical use. The major goal of this CRP was to investigate the use of EPR biodosimetry for reconstruction of absorbed dose in tooth enamel with the aim of providing Member States with up-to-date, and generally agreed upon advice regarding the most suitable procedures and the best focus for their research. The co-ordinated research project was conducted over four years and this publication presents the results and findings by a group of investigators from different countries. The available cytogenetic methods for radiation dose assessment were studied and reviewed in a recently published manual (IAEA TRS 405). A comprehensive review with recommendations on the use of different methods of radiation dose reconstruction (including the EPR biodosimetry) is the subject of an International Commission on Radiological Units and Measurements (ICRU) report on Retrospective Assessment of Exposures to Ionizing Radiation (ICRU 68). The present IAEA TECDOC is addressed to those who need guidance in applying EPR tooth biodosimetry and also to technical specialists producing retrospective dosimetric results.}
place = {IAEA}
year = {2002}
month = {Dec}
}