John Adams (physicist)

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Sir John Bertram Adams KBE FRS (24 May 1920 – 3 March 1984) was an English accelerator physicist and administrator. He is best known for his work at CERN and Culham Laboratory.

Adams grew up in Kingston, Surrey, and never earned a university degree. He left school in 1936 to work at Siemens Laboratories, then studied at the South East London Technical Institute and earned a Higher National Certificate. He began his career working on telephone acoustics.

During World War II and after, he worked at the Telecommunications Research Establishment, helping to develop microwave radar. He then moved to the Atomic Energy Research Establishment until 1953.

In 1953 he joined CERN, where he designed Europe’s first large accelerator, the Harwell Synchrocyclotron, and worked with the Proton Synchrotron Group. When CERN’s proton synchrotron became operational in 1959, he helped set up the testing methods and administrative organization needed for experimentation.

After the death of CERN director Cornelis Bakker in 1960, Adams served as acting Director-General. He left CERN in 1961 to become director of the Culham Fusion Laboratory in the UK and later worked with the UK Atomic Energy Authority. He was also elected a Fellow of the Royal Society.

Adams returned to CERN in 1971 as Director-General of Laboratory II and led the design of the Super Proton Synchrotron (SPS). He shared leadership duties with Willibald Jentschke and later Léon Van Hove during the 1970s. His careful, reliable planning helped CERN gain funding for big projects, and the SPS achieved about 540 GeV.

In 1976 CERN reorganized, and Adams became executive Director-General, helping to secure support for the Large Electron-Positron collider (LEP). He also served as chair of the International Committee for Future Accelerators from 1978 to 1982.

Adams was knighted in 1981. He was married to Renie Warburton in 1943, and they had two daughters and a son. He lived in Founex, Switzerland, and died in Geneva in 1984.

The John Adams Institute for Accelerator Science is named in his honor, and CERN has a Route Adams road named after him.