Multi-anode Channel Plate Multiplier Phototube for Multiple-arm Optical Memories
Original Publication Date: 1985-Feb-01
Included in the Prior Art Database: 2005-Feb-19
A channel plate multiplier phototube 10 as shown in Fig. 1 has a plurality of optical fibers 12A-E connected to a photoemissive cathode 14 from a laser diode light source (not shown). The cathode 14 is held at negative high voltage and light from the optical fiber inputs causing photoemission of electrons. The cathode 14 is supported by face plate 16. Positioned on the cathode 14 is a channel plate multiplier plate 18 which emits as many as about 1000 x the number of electrons that enter it. A stream of electrons is then collected by the anode 20A-E which corresponds to each input fiber 12A-E. The anode signals are then coupled out of the envelope 22 on pins from the anodes 20A-E.