The CCRI News resource

A joint CCRI-IAEA workshop was held at the IAEA Headquarters in Vienna, Austria, from 7 to 8 July 2025. The focus of the meeting was to discuss the needs of high energy neutrons in various applications and how neutron metrology can address them, with the particular focus of finding available and suitable facilities in the world.

A joint CCRI-IAEA workshop was held at the IAEA Headquarters in Vienna, Austria, from 7 to 8 July 2025. The focus of the meeting was to discuss the needs of high energy neutrons in various applications and how neutron metrology can address them, with the particular focus of finding available and suitable facilities in the world.

The 2025 meeting of section III “neutron measurements” of the Consultative Committee for Ionizing Radiation was held at the head quarter of the IAEA, Vienna, Austria, from 9 to 11 July 2025 under the chair of Andreas Zimbal, PTB, Germany. About 40 participants, 7 of them connected remotely, discussed for 3 days the actual status and future developments in neutron metrology.

Dr Haoran Liu from the National Institute of Metrology (China) was awarded one of the two Best Poster Awards at the 24th International Conference...

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

Recently, the CCRI(II) Task Group on the use of mass spectrometry in radionuclide metrology distributed a survey to more than 250 NMIs, DIs, and relevant stakeholders to determine current and planned activities in the use of mass spectrometry for radionuclide measurements.

Dr David T. Burns, PhD, FInstP, will retire from his position as principal research physicist at the Bureau International des Poids et Mesures (BIPM) on 30 September 2024. After a distinguished career spanning several decades, Dr Burns will leave behind a legacy of excellence and significant contributions to the field of ionizing radiation metrology.

The BIPM is pleased to announce the receipt of the first standard solution of Technetium-99 (99Tc) from the LNE-LNHB for measurement using the newly implemented Extension of the International Reference System (ESIR). This marks the launch of the BIPM.RI(II)-K5 comparison, with the first of the 14 isotopes selected by the CCRI.

At first sight, the theme for World Metrology Day 2024 – Sustainability – does not seem to have much overlap with the activities of primary and secondary standard dosimetry laboratories. However, when one considers the meaning of sustainability in the light of the 17 UN Sustainability Goals it becomes more obvious that ionizing radiation is very relevant to the subject and, by...

Dr Anna Villevalde joined the Ionizing Radiation Department as a dosimetry physicist in April 2024. Before joining the BIPM, Dr Villevalde worked at the D.I. Mendeleyev Institute for Metrology (VNIIM) since 2006 as a researcher responsible for primary standards in ionizing radiation dosimetry, focusing on low- and medium-energy x-rays, gamma rays and brachytherapy. She actively...