Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Review of Scientific Instruments
62 (1991), S. 321-322
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
A simple circuit to protect side window photomultiplier tubes against damage from accidental exposure to intense light is described. The gain of the tube is reduced by a factor of at least 104 within 20 μs of overload and automatically returns to normal when the over exposure is removed. This is achieved by using high voltage transistor optocouplers to reduce the voltage between the photocathode and the first seven stages of the tube to zero. The circuit may be easily adapted to suit other types of photomultiplier.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1142122
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