Harvard University's new one hundred and twenty‐five million volt synchrocyclotron, built with the cooperation of the Office of Naval Research and the U.S. Atomic Energy Commission, was dedicated at ceremonies held in the University's Nuclear Laboratory on June 15. The new accelerator, third largest operating cyclotron in the country, was built to replace the twelve million volt Harvard cyclotron, built in 1937, which was moved to the Los Alamos, New Mexico laboratory of the Manhattan District in 1943. Design of the new machine began in 1946, when it was decided that the old cyclotron would not be returned to Cambridge. The project was under the general technical direction of Norman Ramsey and L. L. Davenport. They were assisted by K. T. Bainbridge, E. M. Purcell, J. C. Street, and R. W. Hickman, all of Harvard's physics department, and by other laboratory scientists.

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