Scintillation probe with photomultiplier tube saturation indicat

Details Scintillation probe with photomultiplier tube saturation indicat Scintillation probe with photomultiplier tube saturation indicat

1995-05-16

1996-10-01

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

2502521, G01T 1208

Patent

active

055612865

ABSTRACT:
A photomultiplier tube saturation indicator is formed by supplying a supplemental light source, typically an light emitting diode (LED), adjacent to the photomultiplier tube. A switch allows the light source to be activated. The light is forwarded to the photomultiplier tube by an optical fiber. If the probe is properly light tight, then a meter attached to the indicator will register the light from the LED. If the probe is no longer light tight, and the saturation indicator is saturated, no signal will be registered when the LED is activated.

REFERENCES:
patent: 4661693 (1987-04-01), Masanobu
patent: 5128546 (1992-07-01), Nam et al.
patent: 5237173 (1993-08-01), Stark et al.

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