Comparison of three methods of EPR retrospective dosimetry in watch glass

Agnieszka Marciniak; Małgorzata Juniewicz; Bartłomiej Ciesielski; Anita Prawdzik-Dampc; Jakub Karczewski

doi:10.3389/fpubh.2022.1063769

Comparison of three methods of EPR retrospective dosimetry in watch glass

Front Public Health. 2022 Nov 17:10:1063769. doi: 10.3389/fpubh.2022.1063769. eCollection 2022.

Authors

Agnieszka Marciniak¹, Małgorzata Juniewicz¹, Bartłomiej Ciesielski¹, Anita Prawdzik-Dampc², Jakub Karczewski³

Affiliations

¹ Department of Physics and Biophysics, Medical University of Gdańsk, Gdańsk, Poland.
² Department of Oncology and Radiotherapy, Medical University of Gdańsk, Gdańsk, Poland.
³ Institute of Nanotechnology and Materials Engineering, Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Gdańsk, Poland.

Abstract

In this article we present results of our follow-up studies of samples of watch glass obtained and examined within a framework of international intercomparison dosimetry project RENEB ILC 2021. We present three methods of dose reconstruction based on EPR measurements of these samples: calibration method (CM), added dose method (ADM) and added dose&heating method (ADHM). The study showed that the three methods of dose reconstruction gave reliable and similar results in 0.5-6.0 Gy dose range, with accuracy better than 10%. The ADHM is the only one applicable in a real scenario, when sample-specific background spectrum is not available; therefore, a positive verification of this method is important for future use of EPR dosimetry in glass in potential radiation accidents.

Keywords: EPR; annealing; dose; dosimetry; glass; radiation.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Film Dosimetry*
Retrospective Studies