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509th Composite Group |
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University of California
Berkeley Radiation Lab
Photo: P-390 (A Fatigued Lawrence)
(Photo courtesy of LBNL Image Library)
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This is a photo of Ernest O. Lawrence slumping from fatigue in his chair at the control panel of the cyclotron during the calutron test. In August, the first racetrack began to operate at Oak Ridge, successfully it was thought, but it soon collapsed, its vacuum leaky, its coils shorted, its tanks warped by its might magnet. Meanwhile, Oppenheimer reported that a bomb would require three times as much as U-235 as forecast. Lawrence and others flew in from Berkeley to diagnose the ailing racetrack, which was dismantled and returned to its manufacturers. The pressure overwhelmed even Lawrence. Her spent the end of 1943 in a hospital in Chicago.
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