Consultative Committee for Ionizing Radiation (CCRI)

The new BIPM website

Report of the 109th meeting of the CIPM

Revised CIPM MRA documents

The documents supporting the CIPM Mutual Recognition Arrangement (CIPM MRA) have been revised following the international review of the Arrangement in 2016. The updated documents were published on 11 January 2021.

New series of virtual seminars on ionizing radiation metrology

The field of ionizing radiation metrology is constantly evolving, ensuring the effectiveness and safety of new cancer treatments being just one example. A series of international scientific virtual seminars has been launched to share information on progress in the field.

Announcement of the 20th International Congress of Metrology (CIM 2021)

The 20th International Congress of Metrology, CIM 2021, will be held from 28-30 September 2021 in Paris (France). The congress will explore scientific and industrial challenges in the field of measurement through a varied programme.

IAEA/WHO SSDL Network Scientific Committee meeting

The IAEA/WHO SSDL Network Scientific Committee meeting, which includes a representative of the BIPM, met in March 2020.

New paper providing data for improved radiotherapy dose evaluation

New instrument for comparing primary standards of pure β-emitting radionuclides

Scientists from the BIPM have worked closely with colleagues from national metrology institutes in Germany, France, Poland, China and the UK to develop a new instrument that will enable metrology institutes to compare primary standards of pure beta-emitting radionuclides, reducing the need for complex and time-consuming multi-centre comparison exercises.