In situ amplification of a signal stored upon a dielectric surface
- 1 January 1969
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electron Devices
- Vol. 16 (1) , 30-35
- https://doi.org/10.1109/t-ed.1969.16562
Abstract
Electrostatic latent image development (ELID) is a method of amplifying storage tube information in which electronic charge patterns stored upon a target may be enhanced by secondary emission upon the incidence of a flood beam. Experimental evidence is given for this effect, using the WX-4384 electrostatic slow scan vidicon and the WX-5074 Optechon storage camera tube, showing measured gains greater than 16 times. There has been demonstrated gain which brought a signal, originally completely obscured by target disturbance, up to a level that is easily discernible. There is a definite increase in signal-to-noise ratio. The analytical expression derived for the gain as a function of electron charge incident on the storage surface during the action and the voltage of the first crossover indicates that large gains may be possible for small stored signals.Keywords
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