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Featured researches published by A. Wieser.


Health Physics | 2001

Correction factors in the EPR dose reconstruction for residents of the Middle and Lower Techa riverside.

Alexander A. Romanyukha; Stephen M. Seltzer; Marc F. Desrosiers; E A. Ignatiev; D V. Ivanov; S Bayankin; M O. Degteva; F C. Eichmiller; A. Wieser; P Jacob

Abstract—During 1949–1956, the first Soviet nuclear weapons plant, Mayak, released about 7.6×107 m−3 of liquid radioactive waste with a total activity of 1017 Bq into the Techa River (Southern Urals, Russia). 90Sr contributed 11.6% to the total waste radioactivity. As a result of these radioactive discharges, about 28,000 local residents were exposed to ionizing radiation, and some of them received relatively high doses. Internal exposure of the population residing at the Middle and Lower Techa riverside was mostly from 90Sr deposited in bone and tooth tissues. In order to reconstruct radiation doses to this population group, a study of 35 teeth extracted from local residents was carried out using electron paramagnetic resonance measurements. A total of 73 samples from these 35 teeth (tooth enamel, 33; crown dentin, 20; and root dentin, 20) were prepared and measured with electron paramagnetic resonance. The study revealed high doses (up to 15 Gy) absorbed in tooth enamel of the individuals born during 1945–1949, which was attributed to very high local 90Sr concentration in tooth enamel of this particular age group in the population. The analysis presented here takes into account (a) the time courses both of the release/intake of 90Sr and of the tooth formation, and (b) expected variations in measured absorbed doses due to differing geometric sizes of tooth structures. This methodology enables a more consistent picture to be developed of the 90Sr intake by the Middle and Lower Techa riverside population, based on electron paramagnetic resonance tooth dosimetry.


International Journal of Radiation Biology | 2017

Overview of physical dosimetry methods for triage application integrated in the new European network RENEB.

F. Trompier; Christopher Ian Burbidge; C. Bassinet; M. Baumann; E. Bortolin; Cinzia De Angelis; J. S. Eakins; Sara Della Monaca; P. Fattibene; Maria Cristina Quattrini; Rick Tanner; A. Wieser; Clemens Woda

Abstract Purpose: In the EC-funded project RENEB (Realizing the European Network in Biodosimetry), physical methods applied to fortuitous dosimetric materials are used to complement biological dosimetry, to increase dose assessment capacity for large-scale radiation/nuclear accidents. This paper describes the work performed to implement Optically Stimulated Luminescence (OSL) and Electron Paramagnetic Resonance (EPR) dosimetry techniques. Materials and methods: OSL is applied to electronic components and EPR to touch-screen glass from mobile phones. To implement these new approaches, several blind tests and inter-laboratory comparisons (ILC) were organized for each assay. Results: OSL systems have shown good performances. EPR systems also show good performance in controlled conditions, but ILC have also demonstrated that post-irradiation exposure to sunlight increases the complexity of the EPR signal analysis. Conclusions: Physically-based dosimetry techniques present high capacity, new possibilities for accident dosimetry, especially in the case of large-scale events. Some of the techniques applied can be considered as operational (e.g. OSL on Surface Mounting Devices [SMD]) and provide a large increase of measurement capacity for existing networks. Other techniques and devices currently undergoing validation or development in Europe could lead to considerable increases in the capacity of the RENEB accident dosimetry network.


Radiation Protection Dosimetry | 1997

Wide Scale EPR Retrospective Dosimetry: Results and Problems

A.A. Ivannikov; V.G. Skvortzov; V.F. Stepanenko; D.D. Tikunov; I.M. Fedosov; A. Romanyukha; A. Wieser


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2000

Assessment of an alanine EPR dosimetry technique with enhanced precision and accuracy

Robert B. Hayes; E.H. Haskell; A. Wieser; A.A. Romanyukha; Byron L. Hardy; J.K. Barrus


Radiation Measurements | 2011

The 4th international comparison on EPR dosimetry with tooth enamel Part 1: Report on the results

P. Fattibene; A. Wieser; Emelie Adolfsson; L.A. Benevides; Maria Brai; Freddy Callens; V. Chumak; B. Ciesielski; S. Della Monaca; K. Emerich; Håkan Gustafsson; Y. Hirai; Masaharu Hoshi; Axel Israelsson; Alexander Ivannikov; D. Ivanov; J. Kaminska; Wu Ke; Eva Lund; Maurizio Marrale; L. Martens; Chuzou Miyazawa; N. Nakamura; W. Panzer; S. Pivovarov; Ricardo A. Reyes; Mohd Rodzi; A. Romanyukha; A. Rukhin; S. Sholom


Radiation and Environmental Biophysics | 2000

Strontium metabolism in teeth and enamel dose assessment: analysis of the Techa river data

Evgenia I. Tolstykh; M. O. Degteva; V. P. Kozheurov; Elena A. Shishkina; A. A. Romanyukha; A. Wieser; Peter Jacob


Radiation and Environmental Biophysics | 1996

Pilot study of the Urals population by tooth electron paramagnetic resonance dosimetry.

A. A. Romanyukha; M. O. Degteva; V. P. Kozheurov; A. Wieser; Peter Jacob; E.A. Ignatiev; M. I. Vorobiova


Annali dell'Istituto Superiore di Sanità | 2009

Radiation-induced signals analysed by EPR spectrometry applied to fortuitous dosimetry.

F. Trompier; Bassinet C; A. Wieser; De Angelis C; Viscomi D; P. Fattibene


Nature | 1996

Radiation doses from Ural region.

A. A. Romanyukha; E.A. Ignatiev; M. O. Degteva; V. P. Kozheurov; A. Wieser; Peter Jacob


Radiation Protection Dosimetry | 2006

The third international intercomparison on EPR tooth dosimetry: Part 2, final analysis

A. Wieser; René Debuyst; P. Fattibene; A. Meghzifene; S. Onori; S. N. Bayankin; A. Brik; A. Bugay; V. Chumak; B. Ciesielski; Masaharu Hoshi; H. Imata; Alexander Ivannikov; D. Ivanov; M. Junczewska; C. Miyazawa; M. Penkowski; S. Pivovarov; A. Romanyukha; L. Romanyukha; David A. Schauer; O. Scherbina; K. Schultka; S. Sholom; V. Skvortsov; V. F. Stepanenko; J. A. Thomas; E. Tielewuhan; Shin Toyoda; F. Trompier

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P. Fattibene

Istituto Superiore di Sanità

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D. Ivanov

Russian Academy of Sciences

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A. Romanyukha

Uniformed Services University of the Health Sciences

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S. Della Monaca

Istituto Superiore di Sanità

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F. Trompier

Institut de radioprotection et de sûreté nucléaire

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A. A. Romanyukha

Russian Academy of Sciences

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S. Onori

Istituto Superiore di Sanità

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Sara Della Monaca

Istituto Superiore di Sanità

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V. De Coste

Istituto Superiore di Sanità

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