Abstract
WE have constructed a high-voltage cathode ray tube in which the beam excites the entire screen surface simultaneously and uniformly; the peak beam-current may exceed 100 m.amp. for short periods without damage either to the cathode or the phosphor. The intensity and duration of the electron beam-pulse are controlled by the grid, complete cutoff being possible without removal of the anode voltage. By a suitable choice of screen phosphor (a zinc oxide supplied by Messrs. Levy-West) the form of the light pulses may be made to follow that of the control signal up to frequencies approaching one megacycle per second.
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DUDLEY, M., WHITNEY, I. & FEINBERG, R. A High-Intensity Light Source for Stroboscopic Operation at Frequencies up to 250 kc./s.. Nature 179, 1024 (1957). https://doi.org/10.1038/1791024a0
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DOI: https://doi.org/10.1038/1791024a0
