Secondary electron multiplying apparatus

Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Plural load device systems

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315 121, 328243, H01J 4300, H01J 4304, H01J 4328

Patent

active

051720698

ABSTRACT:
There is disclosed a secondary electron multiplying apparatus including a first channel base for multiplying secondary electrons and a second channel base for inducing an inclined electric field. In the secondary electron multiplying apparatus, the second channel base is arranged so that an inner surface thereof opposes an inner surface of the first channel base, thereby forming a channel for moving the secondary electrons in a direction of the inclined electric field from an entrance end of the channel toward an exit end thereof. The inner surface of the first channel base is made of an electrically resistive material having a predetermined relatively large secondary electron emission coefficient, and the inner surface of the second channel base is made of an electrically resistive material having a predetermined secondary electron emission coefficient smaller than that of the inner surface of the first channel base. Further, a collector electrode for collecting the multiplied secondary electrons going out from the channel is arranged so as to oppose the exit end of the channel.

REFERENCES:
patent: 2141322 (1938-12-01), Thompson
patent: 2185172 (1940-01-01), Bruche et al.
patent: 2220452 (1940-11-01), Jarvis et al.
patent: 2346952 (1944-04-01), Van Mierlo
patent: 2841729 (1958-07-01), Wiley
patent: 3235765 (1966-02-01), Goodrich et al.
patent: 3278751 (1966-10-01), Chubb
patent: 3436590 (1969-04-01), Wolfgang et al.

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