Recent Progress in Flash Radiography

The use of the Westinghouse Micronex X-ray equipment for research problems involving material motions from 2500 to 25,000 ft.per sec. is discussed and illustrated by selected flash radiographs. The radiographs of the faster motions show clearly that the duration of the X-ray pulse produced by the Micronex apparatus is of the order of two microseconds. A circuit is described which, when used with a Micronex X-ray tube, will produce single X-ray pulses lasting no longer than 1/10 microsecond.