Radiological protection - Minimum criteria for electron paramagnetic resonance (EPR) spectroscopy for retrospective dosimetry of ionizing radiation - Part 2: Ex vivo human tooth enamel dosimetry (ISO 13304-2:2020)

This document establishes the minimum requirements for retrospectively determining radiation doses using electron paramagnetic resonance (EPR) spectroscopy specifically on human tooth enamel. It serves as a foundational technical specification for forensic and medical applications where historical exposure to ionizing radiation needs to be assessed through biological samples. The methodology outlines precise protocols for sample preparation, measurement conditions, and data analysis to ensure consistency and reliability across different laboratories. By focusing on the specific characteristics of dental enamel, this text provides a standardized approach to quantify accumulated radiation doses that can be critical in accident reconstruction or radiological health studies. The procedures described facilitate the comparison of results obtained in various settings, supporting the accurate reconstruction of past radiation events. It defines the necessary quality control measures and uncertainty evaluation methods required for valid dose estimation, ensuring that the technical outcomes meet international scientific expectations for retrospective dosimetry.