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ALT Ernest Orlando Lawrence sitting in a chair with the cyclotron in his hands.

ALT Ernest O. Lawrence talking to workers near construction site of 184-inch cyclotron.

ALT Ernest O. Lawrence, Glenn T. Seaborg, and J. Robert Oppenheimer in early 1946 at the controls to the magnet of the 184-inch cyclotron.

ALT Professor Ernest Orlando Lawrence looking over the then-called Lawrence Radiation Laboratory (LRL) with the 184-inch cyclotron in the background.