28 May 2026, 12:00 – 14:00 UTC
The consortium of Metrology Partnership project Traceability in medical X-ray imaging dosimetry (22NRM01, TraMeXI) will be organising this CCRI webinar.
Consistent and reliable dosimetry in medical X-ray imaging depends on well-defined calibration and measurement procedures, making their critical assessment and harmonisation essential to ensure traceable and comparable results across laboratories and clinical practice. Building on earlier CCRI webinars addressing challenges and recent updates in X-ray imaging dosimetry, this third webinar focuses on advances in the calibration of X-ray multimeters used in medical imaging. The webinar will address calibration approaches for key quantities measured by X-ray multimeters beyond air kerma, including tube voltage, irradiation time, and half value layer. In addition, approaches for validating metrological traceability and providing supporting evidence for these calibration services will be discussed.
The webinar will be chaired by Massimo Pinto from ENEA in Italy.
Agenda
- Education and training of radiation metrologist: Olivera Ciraj Bjelac, IAEA and Marco Esposito, ICTP
- Introduction of ICTP university of Trieste Master of Advanced Studies in Medical Physics and Radiation Metrology
- Air kerma and irradiation time: Miloš Živanović, VINS, Serbia
- What changes when the calibrated item is XMM instead of an ionization chamber?
- How should we define the irradiation time and how to obtain the reference value for it?
- Tube voltage: Stefan Pojtinger, PTB, Germany
- How to obtain a reference value for practical peak voltage (PPV)?
- HVL: Aino Tietäväinen, STUK, Finland
- How to measure reference HVL value and estimate the uncertainty?
- Conclusions: Paula Toroi, STUK, Finland
- The future of X-ray imaging dosimetry
Contact email: paula.toroi@stuk.fi
Videos of previous CCRI webinars can be found here.
This Metrology Partnership project has received funding from the European Partnership on Metrology, co-financed by the European Union Horizon Europe Research and Innovation Programme and from the Participating States