Medical Radiology and Radiation Safety. 2024. Vol. 69. № 5
DOI:10.33266/1024-6177-2024-69-5-109-113
D.V. Ivanov1, 2, D.R. Baytimirov2, S.F. Konev2, E.E. Aladova3
Using of Cotton Fabric and Fiber as Objects of Retrospective EPR Dosimetry
1 M.N. Mikheev Institute of Metal Physics, Ekaterinburg, Russia
2 First President of Russia B.N. Yeltsin Ural Federal University, Ekaterinburg, Russia
3 Southern Urals Biophysics Institute of FMBA of Russia, Ozersk, Chelyabinsk region, Russia
Contact person: D.V. Ivanov, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
ABSTRACT
Purpose: Testing samples of cotton materials for their use as objects of recovery of accumulated dose by EPR dosimetry.
Material and methods: Samples of cotton fabric and fabrics of mixed composition – lab coats, casual clothing items – shirts and jeans, as well as protective masks and respirators were irradiated using a linear electron accelerator model UELR-10-10C2 in the dose range from several Gy to 16 kGy. EPR spectra were recorded using the Bruker Elexsys-II E580 X-band EPR spectrometer with a SuperHighQ cylindrical resonator.
Results: It was found that ionizing radiation induces free radicals in materials with triplet EPR signal, the most intense line of which has g = 2.019 and a linewidth 6 G. There was no or negligible native signal in uncolored fabrics. The radiation-induced EPR signal decayed exponentially with average half-life time of 62 hours.
Conclusion: Clothing materials based on cotton fabrics, as well as materials of protective medical masks, have shown themselves suitable for use as an object of retrospective EPR dosimetry.
Keywords: retrospective dosimetry, solid state dosimetry, electronic paramagnetic resonance, radiation defects, emergency exposure, clothing materials
For citation: Ivanov DV, Baytimirov DR, Konev SF, Aladova EE. Using of Cotton Fabric and Fiber as Objects of Retrospective EPR Dosimetry. Medical Radiology and Radiation Safety. 2024;69(5):109–113. (In Russian). DOI:10.33266/1024-6177-2024-69-5-109-113
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PDF (RUS) Full-text article (in Russian)
Conflict of interest. The authors declare no conflict of interest.
Financing. The work was financing by Federal Medical and Biological Agency within the framework of the Federal Target Program “Ensuring nuclear and radiation safety for 2016-2020 and for the period up to 2030” as well as by Ministry of Education and Science of the Russian Federation within the framework of the state assignment.
Contribution. Article was prepared with equal participation of the authors.
Article received: 20.05.2024. Accepted for publication: 25.06.2024.