A mathematical model for calculation of Sr-90 absorbed dose in dental tissues: elaboration and comparison to EPR measurements

Authors
Shishkina, EA Lyubashevskii, NM Tolstykh, EI Ignatiev, EA Betenekova, TA Nikiforov, SV
Citation
Ea. Shishkina et al., A mathematical model for calculation of Sr-90 absorbed dose in dental tissues: elaboration and comparison to EPR measurements, APPL RAD IS, 55(3), 2001, pp. 363-374
Citations number
24
Categorie Soggetti
Multidisciplinary
Journal title
APPLIED RADIATION AND ISOTOPES
ISSN journal
09698043 → ACNP
Volume
55
Issue
3
Year of publication
2001
Pages
363 - 374
Database
ISI
SICI code
0969-8043(200109)55:3<363:AMMFCO>2.0.ZU;2-U
Abstract
A mathematical model for calculation of the Sr-90 absorbed doses in dental tissues is presented. The results of the Monte-Carlo calculations are compa red to the data obtained by EPR measurements of dental tissues. Radiometric measurements of the Sr-90 concentrations., TLD and EPR dosimetry investiga tions were performed in animal (dog) study. The importance of the irregular Sr-90 distribution in the dentine for absorbed dose formation has been sho wn. The dominant dose formation factors (main source-tissues) were identifi ed for the crown dentine and enamel. The model has shown agreement with exp erimental data which allows to determine further directions of the human to oth model development. (C) 2001 Elsevier Science Ltd. All rights reserved.