The CCRI News resource

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...

Radiopharmaceutical therapy using alpha-emitting radionuclides such as 223Ra and 225Ac is proving to be highly effective in fighting several forms of cancer. The safe and effective use of these types of drugs relies on the ability to make accurate measurements of the amount of the drug, measured clinically as the amount of radioactivity, being administered to the patient. Because of...

In the August 2023 edition of Measure for Measure in Nature Physics, Dr Carine Michotte took the readers on a journey through a condensed history of radionuclide metrology, starting from its remarkable inception in 1913 – when Marie Curie introduced the first international standard for Ra-226 at the BIPM – and spanning to activity measurement standards, logistical challenges of...

The CCRI was held at the Pavillon du Mail at the BIPM headquarters in Sèvres, France, and was well attended in person (36 participants) and additionally had online participation (30 attendees). This was the first in person meeting of the CCRI since the global pandemic was declared in 2020. The meeting was chaired by the new CCRI president JT Janssen from NPL. The following list...

The  CCRI Section II (Measurement of Radionuclides) met at the BIPM in Sèvres on 5-7 June 2023. There were 24 members and guests meeting in person, and an additional 19 total at various times virtually. The first half-day was held jointly with the KCWG(II). The main recommendations and actions from this meeting were: The opening of the BIPM(II)-K5 comparison, following the ...