Widerange photomultiplier circuit

Details Widerange photomultiplier circuit Widerange photomultiplier circuit

1981-05-29

1983-10-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

313105R, H01J 4014

Patent

active

044094744

ABSTRACT:
An improvement for a photomultiplier tube having its cathode, dynodes and ode spaced apart within an envelope increases the tube's linear dynamic range capability. A constant and stable collection potential is maintained between the anode and the dynode nearest the anode. In one form a zener diode voltage source and serially connected resistor are used or a fixed voltage is appropriately connected separate and distinct from the dynode potential connected across the other dynodes and the cathode. Thusly modified, a light flux range of approximately eight orders of magnitude can be accommodated by the improved photomultiplier tube circuitry.

REFERENCES:
patent: 2583143 (1952-01-01), Glick
patent: 3296445 (1967-01-01), Roos et al.

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