title: The Third International Intercomparison on EPR Tooth Dosimetry: part 2, final analysis.
abstract: The objective of the Third International Intercomparison on EPR Tooth Dosimetry was to evaluate laboratories performing tooth enamel dosimetry <300 mGy. Final analysis of results included a correlation analysis between features of laboratory dose reconstruction protocols and dosimetry performance. Applicability of electron paramagnetic resonance (EPR) tooth dosimetry at low dose was shown at two applied dose levels of 79 and 176 mGy. Most (9 of 12) laboratories reported the dose to be within 50 mGy of the delivered dose of 79 mGy, and 10 of 12 laboratories reported the dose to be within 100 mGy of the delivered dose of 176 mGy. At the high-dose tested (704 mGy) agreement within 25% of the delivered dose was found in 10 laboratories. Features of EPR dose reconstruction protocols that affect dosimetry performance were found to be magnetic field modulation amplitude in EPR spectrum recording, EPR signal model in spectrum deconvolution and duration of latency period for tooth enamel samples after preparation.
authors.affiliation: Institute of Radiation Protection, GSF-National Research Centre for Environment and Health, D-85758 Neuherberg, Germany.
authors.forename: A
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authors.lastname: Wieser
authors.forename: R
authors.initials: R
authors.lastname: Debuyst
authors.forename: P
authors.initials: P
authors.lastname: Fattibene
authors.forename: A
authors.initials: A
authors.lastname: Meghzifene
authors.forename: S
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authors.lastname: Onori
authors.forename: S N
authors.initials: SN
authors.lastname: Bayankin
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authors.initials: A
authors.lastname: Brik
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authors.initials: A
authors.lastname: Bugay
authors.forename: V
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authors.lastname: Chumak
authors.forename: B
authors.initials: B
authors.lastname: Ciesielski
authors.forename: M
authors.initials: M
authors.lastname: Hoshi
authors.forename: H
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authors.lastname: Imata
authors.forename: A
authors.initials: A
authors.lastname: Ivannikov
authors.forename: D
authors.initials: D
authors.lastname: Ivanov
authors.forename: M
authors.initials: M
authors.lastname: Junczewska
authors.forename: C
authors.initials: C
authors.lastname: Miyazawa
authors.forename: M
authors.initials: M
authors.lastname: Penkowski
authors.forename: S
authors.initials: S
authors.lastname: Pivovarov
authors.forename: A
authors.initials: A
authors.lastname: Romanyukha
authors.forename: L
authors.initials: L
authors.lastname: Romanyukha
authors.forename: D
authors.initials: D
authors.lastname: Schauer
authors.forename: O
authors.initials: O
authors.lastname: Scherbina
authors.forename: K
authors.initials: K
authors.lastname: Schultka
authors.forename: S
authors.initials: S
authors.lastname: Sholom
authors.forename: V
authors.initials: V
authors.lastname: Skvortsov
authors.forename: V
authors.initials: V
authors.lastname: Stepanenko
authors.forename: J A
authors.initials: JA
authors.lastname: Thomas
authors.forename: E
authors.initials: E
authors.lastname: Tielewuhan
authors.forename: S
authors.initials: S
authors.lastname: Toyoda
authors.forename: F
authors.initials: F
authors.lastname: Trompier
mesh_terms: D004578:Electron Spin Resonance Spectroscopy / Q000379:methods* / Q000639:trends; D005553:Forensic Dentistry / Q000379:methods* / Q000639:trends; D006801:Humans; D011868:Radioisotopes / Q000032:analysis*; D011874:Radiometry / Q000379:methods* / Q000639:trends; D012016:Reference Values; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014070:Tooth / Q000737:chemistry*
chemical_list: D011868:Radioisotopes