

The final meeting of the EURAMET project 22NRM01 TraMeXI (Traceability and Harmonisation in Medical X-ray Imaging Dosimetry) was held in Gothenburg, Sweden, from 11 to 12 May 2026, marking the successful completion of three years of collaborative work by an international consortium dedicated to improving and harmonising measurement procedures in the field of medical X-ray dosimetry.
The Laboratory for Ionizing Radiation of the Institute of Metrology of Bosnia and Herzegovina (IMBIH) participated as a project partner throughout the implementation of the project activities. During the meeting, the consolidated results of all work packages were presented, including the development of new reference radiation qualities, the establishment of harmonised calibration procedures for X-ray multimeters, the results of intercomparisons (EUR-1676, EUR-1677 and EUR-1678), as well as conclusions related to the validation of measurement methods and the dissemination of project outcomes.
Particular attention was given to the final technical reports and proposals for the improvement of existing international standards, especially IEC 61674, IEC 61676 and IAEA TRS-457, which are expected to provide a basis for future revisions and further harmonisation in this field.
The main objective of the TraMeXI project was to establish a common framework for traceable and comparable calibrations in medical X-ray dosimetry, thereby contributing to greater reliability of measurements in clinical practice and improved quality of diagnostic procedures.
The project delivered several significant outcomes, including the development of an open-access spectrum catalogue, the evaluation of the performance of commercial dosimeters, and the preparation of recommendations for the revision of relevant international standards. These achievements represent an important contribution to the advancement of modern metrology in the field of ionizing radiation.
IMBIH’s participation further strengthened international cooperation and enhanced the Institute’s visibility within European research and standardisation activities in this area.
More information about the project is available at: