Spiral accelerator: Difference between revisions
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The '''spiral accelerator''' is a helical resistive coating on a cathode-ray tube designed to minimize beam compression in the post-deflection acceleration system by applying a gradually increasing acceleration voltage along the bulb's length. | The '''spiral accelerator''' is a helical resistive coating on a [[cathode-ray tube]] (CRT), designed to minimize beam compression in the post-deflection acceleration system by applying a gradually increasing acceleration voltage along the bulb's length. | ||
It was first suggested in 1938 but not developed into a practical device. | It was first suggested in 1938 but not developed into a practical device. | ||
Revision as of 03:20, 11 March 2017
The spiral accelerator is a helical resistive coating on a cathode-ray tube (CRT), designed to minimize beam compression in the post-deflection acceleration system by applying a gradually increasing acceleration voltage along the bulb's length.
It was first suggested in 1938 but not developed into a practical device.
In 1952, Howard Vollum revived the idea for the T51 CRT that Tektronix was developing for the 1953 model 535 scope.
The spiral accelerator displaced multi-band acceleration by the 1960s.