Image tube employing a microchannel electron multiplier

Details Image tube employing a microchannel electron multiplier Image tube employing a microchannel electron multiplier

1971-10-28

1978-06-13

Nelson, Peter A.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

With radiant energy sensitive control means

250213VT, 313105CM, H01J 3148

Patent

active

040951367

ABSTRACT:
In an image tube, a microchannel electron multiplier plate is disposed between the photocathode and a cathodoluminescent output screen for multiplying the electron current of electron images. Electrodes are deposited upon the input and output face of the microchannel electron multiplier plate. On the output face the electrode is deposited into the ends of the microchannels to a distance of approximately 2 diameters of the individual channels. A semiconductive material, such as zinc sulphide, is deposited over the output electrode in the output ends of the microchannels for causing the secondary electrons emitted from the end portions of the microchannels to show a narrow energy spread, whereby the resolution of the intensified output image is enhanced.

REFERENCES:
patent: 3086139 (1963-04-01), Lehrer
patent: 3339099 (1967-08-01), Anderson
patent: 3634712 (1972-01-01), Orthuber
patent: 3660668 (1972-05-01), Wolski
patent: 3673457 (1972-06-01), Sackinger et al.

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