The CIPM has elected Dr Jan-Theodoor Janssen as President of the Consultative Committee for Ionizing Radiation (CCRI) for a four-year term starting from 21 March 2023.

During the first session of its 112th meeting (21-23 March 2023) the CIPM elected Dr Jan-Theodoor Janssen as President of the Consultative Committee for Ionizing Radiation (CCRI) for a four-year term starting from 21 March 2023. Dr Janssen is the Chief Scientist and International Director at the National Physical Laboratory (NPL) in the UK. In that role he is responsible for maintaining and enhancing the quality of the NPL’s science and engineering capabilities across a wide range of disciplines spanning physics, engineering, chemistry, material science, mathematics, medical and the life sciences. His 25-year research career has covered a wide range of topics in solid-state physics applied to metrology. Highlights include the behaviour of electrons in nanostructured devices with the aim of developing a quantum standard for electrical current, the quantum Hall effect in both traditional semiconductor systems as well as graphene, as a primary standard for resistance and the Josephson effect for a quantum voltage standard.

A strong advocate for diversity and inclusion in the laboratory, Dr Janssen is the executive sponsor for the Institute of Physics JUNO project which aims to address the under-representation of women in physics and to encourage better working practices for both women and men.

Dr Vincent Gressier, director of the BIPM Ionizing Radiation Department has been the Executive Secretary of the CCRI since August 2021. Dr Gressier was awarded his PhD by The French Alternative Energies and Atomic Energy Commission and the Joint Research Center (Geel, Belgium), before joining the French Institute for Radiation Protection and Nuclear Safety in 1999. There he was in charge of neutron metrology and, in particular, the definition and operation of the dedicated AMANDE facility. Dr Gressier became Chair of CCRI Section III: Neutron measurements in 2015 and participated in the development of the CCRI 2018-2028 Strategy. He had been a member of CCRI Section III since 2005 on behalf of the French National Metrology Institute.

The BIPM wishes Dr Janssen success in the role and extends its warmest thanks to Dr Martyn Sené (NPL, UK) who held the position from 2019 to 2023.