Committee members

Consultative Committee for Ionizing Radiation (CCRI)

President

Dr J.-T. Janssen

Chief Scientist

National Physical Laboratory

United Kingdom

Executive Secretary

Dr V. Gressier

Director of the Ionizing Radiation Department

Bureau international des poids et mesures

France

CCRI News Resource CCRI Webinars CCRI Workshops

List of meetings

Meetings and related documents

31st meeting of the CCRI

07
November
2025

Hybrid Workshop: "Past and Future of Ionizing Radiation Metrology"

06
November
2025

CCRI-COMWG

Workshop on: The Future of Radionuclide Metrology and CCRI(II)

05
November
2025

CCRI(II)

CCRI-KCWG(II)

03
November
2025

CCRI(II)

From 03 to 05
November
2025

CCRI(II)

CCRI Webinar on "Challenges with Monte Carlo Simulation in Ionizing Radiation Metrology

15
October
2025

CCRI(I)

From 17 to 18
September
2025

CCRI(I)

Protons and Heavy Ions for Therapeutic Applications Workshop

16
September
2025

CCRI(I)

Dosimetry for Radiation Protection, Emergency Response, and Mitigation

16
September
2025

CCRI(I)

Brachytherapy Dosimetry Workshop

15
September
2025

CCRI(I)

CCRI(III)

From 09 to 11
July
2025

CCRI(III)

Hybrid Workshop on High-Energy Neutron Fields

From 07 to 08
July
2025

CCRI(III)

Hybrid workshop on “Current and Future Applications of Mass Spectrometry in Radionuclide Metrology”

16
May
2025

CCRI Webinar on “Updates on X-ray imaging Dosimetry Practices

24
April
2025

CCRI-COMWG

10
April
2025

CCRI-COMWG

CCRI-DT-TG

04
April
2025

CCRI Webinar on "Radionuclide Reference Materials"

28
March
2025

CCRI-KCWG(II)

27
March
2025

CCRI(I)

CCRI Section I: X- and gamma rays, charged particles

CCRI(II)

CCRI Section II: Measurement of radionuclides

CCRI(III)

CCRI Section III: Neutron measurements

CCRI-BSWG(I)

CCRI Section I: Brachytherapy Standards Working Group

CCRI-COMWG

CCRI Communication Working Group

CCRI-DT-TG

CCRI Task Group on Digital Transformation

CCRI-KCWG(I)

CCRI Section I: Key Comparisons Working Group

CCRI-KCWG(II)

CCRI Section II: Key Comparisons Working Group

CCRI-RMOWG

CCRI RMO Working Group on IR CMCs

CCRI-RS-TG

CCRI Task Group on Radioactive Sources and Alternative Technologies

CCRI-RTWG

CCRI Radionuclide Therapy and Quantitative Imaging Working Group

CCRI-SWG

CCRI ad hoc Working Group on Strategy

Publications

Strategy documents

[CCRI] CCRI-S-01
CCRI Strategic Plan 2030+

General documents

[CCRI] CCRI-D-01
CCRI CMC rules

Guidance documents on the CIPM MRA

[CCRI] CCRI-G-03
An Interpretation of CIPM MRA-G-11: Implications and Impacts for CCRI (2023)

[CCRI] CCRI-G-04
CMC review checklist (2023)

CCRI-mission

Mission

To discuss, foster, enable and co-ordinate the development, comparison and promulgation of national measurement standards for ionizing radiation. We aim to enable all users of ionizing radiation to make measurements with confidence at an accuracy that is fit for purpose.

Vision

A world in which the many benefits of ionizing radiation for healthcare and technology can be realized by accurate, scientifically rigorous measurement, confident that the associated risks are constrained.

Nested Applications

News and Updates

BIPM Extends Use of Off-Site Facility to Calibrate Secondary Standards for Radiation Protection Dosimetry

The BIPM is advancing dosimetry services for National Metrology Institutes (NMIs) by expanding its use of off-site facilities for calibration and comparison services.