A Positron Camera Detector Design with Cross-Coupled Scintillators and Quadrant Sharing Photomultipliers

Wai Hoi Wong

doi:10.1109/23.256693

A Positron Camera Detector Design with Cross-Coupled Scintillators and Quadrant Sharing Photomultipliers

Wai Hoi Wong

Cancer Systems Imaging

Research output: Contribution to journal › Article › peer-review

100 Scopus citations

Abstract

A new positron camera scintillation detector design is proposed. This design uses discrete scintillators tightly optically coupled (glued) together to form a block. The coupling interfaces between crystals have different degree of polish depending of the interface location within the block. Each block has the same dimension as that of the photomultipliers (PMT) used, but the blocks and the PMT array are off-set in both X-Y directions. Advantages of the design are: (a) higher detection efficiency with almost 100% packing fraction, (b) very uniform signal pulse-heights even for very small crystals at the edge of the block, (c) the decoding is less dependent of the depth of interaction (d) significantly decreasing the number of PMT by up to 75%, and (e) with the smallest PMT (1.0 cm) currently available, spatial resolution in the range of 1-2mm may potentially be achieved.

Original language	English (US)
Pages (from-to)	962-966
Number of pages	5
Journal	IEEE Transactions on Nuclear Science
Volume	40
Issue number	4
DOIs	https://doi.org/10.1109/23.256693
State	Published - Aug 1993

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering
Electrical and Electronic Engineering

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10.1109/23.256693

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title = "A Positron Camera Detector Design with Cross-Coupled Scintillators and Quadrant Sharing Photomultipliers",

abstract = "A new positron camera scintillation detector design is proposed. This design uses discrete scintillators tightly optically coupled (glued) together to form a block. The coupling interfaces between crystals have different degree of polish depending of the interface location within the block. Each block has the same dimension as that of the photomultipliers (PMT) used, but the blocks and the PMT array are off-set in both X-Y directions. Advantages of the design are: (a) higher detection efficiency with almost 100% packing fraction, (b) very uniform signal pulse-heights even for very small crystals at the edge of the block, (c) the decoding is less dependent of the depth of interaction (d) significantly decreasing the number of PMT by up to 75%, and (e) with the smallest PMT (1.0 cm) currently available, spatial resolution in the range of 1-2mm may potentially be achieved.",

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year = "1993",

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A Positron Camera Detector Design with Cross-Coupled Scintillators and Quadrant Sharing Photomultipliers

Abstract

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