Gamma ray detector for pet scanner

Details Gamma ray detector for pet scanner Gamma ray detector for pet scanner

1992-06-26

1994-04-05

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250366, 250368, G01T 120, G01T 1202

Patent

active

053007824

ABSTRACT:
A PET scanner includes a ring of detector units which receive gamma rays produced by annihilation events. Each detector unit includes a 6.times.6 array of BGO scintillation crystals mounted in front of a 2.times.2 array of photomultiplier tubes. The position of a scintillation event within the crystal array is determined more accurately by selectively painting the side surfaces of the array crystals.

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Yamamoto et al., "A BGO Detector Using a New Encoding Scheme for a High Resolution Positron Emission Tomograph", Nuc. Ins. & Met. in Phy. Rea., A248, 1986, pp. 557-561.

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