Radiological protection - Minimum criteria for electron paramagnetic resonance (EPR) spectroscopy for retrospective dosimetry of ionizing radiation - Part 1: General principles (ISO 13304-1:2020)

This technical specification establishes the fundamental requirements for conducting retrospective dose assessment using electron paramagnetic resonance (EPR) spectroscopy in the context of preventive protection. It outlines the essential principles and methodological framework necessary to ensure the accuracy and reliability of radiation dosimetry following exposure incidents. The document details the specific procedures required to analyze biological samples, particularly teeth and bone, to estimate absorbed radiation doses after the fact. It addresses the technical conditions for sample preparation, the selection of appropriate measurement parameters, and the validation of experimental setups. By defining these core operational guidelines, the text provides a basis for standardizing the analytical approach across different facilities. It ensures that the data generated from EPR measurements meets rigorous quality criteria, facilitating consistent interpretation of radiation exposure levels in various scenarios involving accidental or intentional irradiation.