Correction Factors in the Epr Dose Reconstruction for Residents of the Middle and Lower Techa Riverside

Romanyukha, Alexander; Seltzer, S. M.; Desrosiers, Marc F.; Ignatiev, E.A.; Иванов, Д.; Bayankin, S.; Eichmiller, Frederick C.; Wieser, A.; Jacob, Peter

doi:10.1097/00004032-200111000-00010

Cited by 28 publications

(13 citation statements)

References 20 publications

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“…Gy in the teeth that had already been completed at that time (Tolstykh et al, 2000;Romanyukha et al, 2001). Because of the differences in the development processes of teeth in different buccal positions, incorporation of radioisotopes into teeth of different types occurs at different ages.…”

Section: Epr Response Of Tooth Enamel To Doses From Internal β β β β-mentioning

confidence: 99%

“…Dentine was used for dose reconstructions in a small number of studies (Goksu et al, 2002;Romanyukha et al, 2001). …”

Section: Epr Dosimetry Using Dentinementioning

confidence: 99%

“…Donor's residence Estimate of the regional natural radiation background dose (19.4) Survivors of A-bombing of Hiroshima, Japan ~100 Cytogenetic methods Ikeya et al (1984); Ikeya and Ishii (1989); Ikeya et al (1986); Tatsumi Mayak nuclear workers, Russia ~100 Occupational dosimetry Romanyukha et al (1994Romanyukha et al ( , 1996cRomanyukha et al ( , 2000b; Wieser et al (2006b) Techa River basin population, Russia ~300 Model-calculated dose, cytogenetic methods Degteva et al (2000bDegteva et al ( , 2005; Romanyukha et al (1996aRomanyukha et al ( , 1996bRomanyukha et al ( , 2001Romanyukha et al ( , 2002b; Shishkina et al (2001Shishkina et al ( , 2003Shishkina et al ( , 2005; Tikunov et al …”

Section: History Of Treatments Of Nearby Teethmentioning

confidence: 99%

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EPR dosimetry with tooth enamel: A review

Fattibene

Callens

2010

Applied Radiation and Isotopes

212

160

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When tooth enamel is exposed to ionizing radiation, radicals are formed that can be detected using Electron Paramagnetic Resonance (EPR) techniques. EPR dosimetry using tooth enamel is based on the (presumed) correlation between the intensity or amplitude of some of the radiation-induced signals with the dose absorbed in the enamel. In the present paper a critical review is given of this widely applied dosimetric method.The first part of the paper is quite fundamental and deals with the main properties of tooth enamel and several of its model systems (e.g., synthetic apatites). Considerable attention is also devoted to the numerous radiation-induced and native EPR signals, and the radicals responsible for them. The relevant EPR detection, identification and spectrum analysing methods are reviewed from a general point of view. Finally, the need for solid state modelling and the linearity of the dose response are investigated.The second part is devoted to the practical implementation of EPR dosimetry using enamel. It concerns the preparation of samples, specific irradiation problems, spectrum acquisition and it is described how the dosimetric signal intensity and dose can be retrieved from the EPR spectra. Special attention is paid to the energy dependence of the EPR response and to sources of uncertainties. Results of and problems encountered in international intercomparisons and epidemiological studies are also dealt with.In the final chapter the future of EPR dosimetry with tooth enamel is analysed.

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Section: Epr Response Of Tooth Enamel To Doses From Internal β β β β-mentioning

confidence: 99%

“…Dentine was used for dose reconstructions in a small number of studies (Goksu et al, 2002;Romanyukha et al, 2001). …”

Section: Epr Dosimetry Using Dentinementioning

confidence: 99%

Section: History Of Treatments Of Nearby Teethmentioning

confidence: 99%

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EPR dosimetry with tooth enamel: A review

Fattibene

Callens

2010

Applied Radiation and Isotopes

212

160

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“…However, EPR dosimetry remains a very sensitive technique for retrospective dosimetry and epidemiological studies [11,[62][63][64][65][66][67][68] with recent advancements that allows in vivo measurements [69].…”

Section: Epr Dosimetrymentioning

confidence: 99%

Study of EPR/ESR Dosimetry in Fingernails as a Method for Assessing Dose of Victims of Radiological Accidents/Incidents

Reyes¹

2008

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The threat of nuclear terrorism and the potential for the use of radiation as a weapon make having an efficient and accurate radiation dosimetry methodology paramount. This study gives a physical/mechanical explanation to the behavior of EPR signals in fingernail dosimetry by modeling fingernails as sponges. Since previous work was performed using stressed (untreated) samples, they do not represent the realistic behavior of unstressed (treated) fingernails. The developed treatment eliminates the combined effect of the mechanical EPR signals, MIS1 (former MIS), and MIS2 (former BKS). As nail samples are physically restored with treatments, are not stressed, and display a response closer to that of in vivo specimens. The RIS is proportional to the radiation dose and shows a curvilinear dose response in unstressed samples using the additive dose method that can be modeled with a saturating exponential model (Grun model) for predicting residual or accidental radiological dose.Water content and mechanical stress were identified as the major factors affecting radiation sensitivity and its shape in fingernail EPR measurements respectively. It is proposed that treated samples be used in fingernail EPR dosimetry because they show more stable signals than untreated ones and have lower interpersonal and intrapersonal variability. Practical conditions of sample collection, preparation, and measurements at an accident site can be met with techniques illustrated in this study.v

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“…These other dose contributions have to be estimated by independent methods, e.g., the natural background exposure can be evaluated by the dose rate in the region of residence and the tooth age and medical or occupational radiation exposures may be estimated by an interview of the tooth donor about his/her radiation history. If it is known that bone seeking radionuclides like 90 Sr were incorporated in teeth tissues to a significant extent, an independent measurement of the concentration of 90 Sr in teeth needs to be carried out in order to determine the relative contributions from external exposures and internal contamination (Romanyukha et al, 2001;Veronese et al, 2006). Göksu et al (2002a, b) and Shishkina et al (2005) have shown that the 90 Sr concentration in dental tissue can be measured using passive beta detectors; a good correlation with the measured EPR values was obtained in their experiments.…”

Section: Electron Paramagnetic Resonancementioning

confidence: 99%

BiodosEPR-2006 consensus committee report on biodosimetric methods to evaluate radiation doses at long times after exposure

Simon

Bailiff

Bouville

et al. 2007

Radiation Measurements

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'kaev, Alexander V.; Tucker, James D.; and Wieser, Albrecht, "BiodosEPR-2006 consensus committee report on biodosimetric methods to evaluate radiation doses at long times after exposure" (2007 AbstractThe requirements for biodosimetric techniques used at long times after exposure, i.e., 6 months to more than 50 years, are unique compared to the requirements for methods used for immediate dose estimation. In addition to the fundamental requirement that the assay measures a physical or biologic change that is proportional to the energy absorbed, the signal must be highly stable over time to enable reasonably precise determinations of the absorbed dose decades later. The primary uses of these biodosimetric methods have been to support long-term health risk (epidemiologic) studies or to support compensation (damage) claims. For these reasons, the methods must be capable of estimating individual doses, rather than group mean doses. Even when individual dose estimates can be obtained, inter-individual variability remains as one of the most difficult problems in using biodosimetry measurements to rigorously quantify individual exposures. Other important criteria for biodosimetry methods include obtaining samples with minimal invasiveness, low detection limits, and high precision. Cost and other practical limitations generally prohibit biodosimetry measurements on a large enough sample to replace analytical dose reconstruction in epidemiologic investigations. However, these measurements can be extremely valuable as a means to corroborate analytical or model-based dose estimates, to help reduce uncertainty in individual doses estimated by other methods and techniques, and to assess bias in dose reconstruction models. There has been extensive use of three biodosimetric techniques in irradiated populations: EPR (using tooth enamel), FISH (using blood lymphocytes), and GPA (also using blood); these methods have been supplemented with luminescent methods applied to building materials and artifacts. A large number of investigations have used biodosimetric methods many years after external and, to a lesser extent, internal exposure to reconstruct doses received from accidents, from occupational exposures, from environmental releases of radioactive materials, and from medical exposures. In most applications, the intent has been to either identify highly exposed persons or confirmed suspected exposures. Improvements in methodology, however, have led many investigators to attempt quantification of whole-body doses received, or in a few instances, to estimate organ doses. There will be a continued need for new and improved biodosimetric techniques not only to assist in future epidemiologic investigations but to help evaluate the long-term consequences following nuclear accidents or events of radiologic terrorism.

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Correction Factors in the Epr Dose Reconstruction for Residents of the Middle and Lower Techa Riverside

Cited by 28 publications

References 20 publications

EPR dosimetry with tooth enamel: A review

EPR dosimetry with tooth enamel: A review

Study of EPR/ESR Dosimetry in Fingernails as a Method for Assessing Dose of Victims of Radiological Accidents/Incidents

BiodosEPR-2006 consensus committee report on biodosimetric methods to evaluate radiation doses at long times after exposure

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