Method and system capable of tuning scintillation camera by smal

Details Method and system capable of tuning scintillation camera by smal Method and system capable of tuning scintillation camera by smal

1992-10-08

1995-05-02

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250369, G01T 1164, G01T 1208

Patent

active

054122155

ABSTRACT:
In a scintillation camera system, a total number of reference light sources such as LEDs is considerably reduced with reference to a total number of photomultiplier tubes, and a defect occurring in either the reference light source, or the photomultiplier tube can be detected. The scintillation camera system includes: a plurality of photomultiplier tubes (4A:4N) for outputting scintillation signals; at least three reference light sources (5A:5B:5C) positioned continuous to the plurality of photomultiplier tubes (4A:4N), one of these plural photomultiplier tubes (4A:4N) being separated from the three reference light sources at an equidistance; a signal processing unit (6) for processing the scintillation signal outputs from the plural photomultiplier tubes (4A:4N) to produce feedback signals; and a controlling unit (7) for controlling radiation from the reference light sources (5A:5B:5C) in response to the feedback signals.

REFERENCES:
patent: 4079257 (1978-03-01), Jatteau et al.
patent: 4605856 (1986-08-01), Persyk et al.
patent: 4764678 (1988-08-01), Yamakawa
patent: 5004904 (1991-04-01), Yamakawa et al.
patent: 5237173 (1993-08-01), Stark et al.

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