A high speed position-decoding electronics for BGO block detectors in PET

Hongdi Li; Wai Hoi Wong; Jorge Uribe; Hossain Baghaei; Nan Zhang; Junming Wang; Wang Yu Wang

doi:10.1109/23.856539

A high speed position-decoding electronics for BGO block detectors in PET

Hongdi Li, Wai Hoi Wong, Jorge Uribe, Hossain Baghaei, Nan Zhang, Junming Wang, Wang Yu Wang

Cancer Systems Imaging

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

13 Scopus citations

Abstract

A high-speed prototype electronics for positioning gamma event at BGO block detectors in PET has been developed. It adapts the "high-yield pileup-event recovery" method (HYPER) proposed by us for nonimaging probes and gamma camera, HYPER uses recurring residual subtractions for multiple/continuous pileup conditions. The regular Anger positioning algorithm was modified by the HYPER method. The HYPER-Anger positioning circuit was designed for individual BGO blocks or block arrays and tested on a DGO block (2×2 cm with 7×7 elements on 4 PMT). The block was well decoded even at 800 kcps, which is 6-7× higher than the typical maximum rate of 130 kcps for BGO blocks. The position-decoding electronics may be used to increase the maximum imaging-rate of regular BGO PET or to compensate for the lower imaging rate of the PMT-quadrant-sharing detector design, which doubles spatial resolution in both transaxial and axial directions.

Original language	English (US)
Pages (from-to)	1006-1010
Number of pages	5
Journal	IEEE Transactions on Nuclear Science
Volume	47
Issue number	3 PART 3
DOIs	https://doi.org/10.1109/23.856539
State	Published - 2000

ASJC Scopus subject areas

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

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title = "A high speed position-decoding electronics for BGO block detectors in PET",

abstract = "A high-speed prototype electronics for positioning gamma event at BGO block detectors in PET has been developed. It adapts the {"}high-yield pileup-event recovery{"} method (HYPER) proposed by us for nonimaging probes and gamma camera, HYPER uses recurring residual subtractions for multiple/continuous pileup conditions. The regular Anger positioning algorithm was modified by the HYPER method. The HYPER-Anger positioning circuit was designed for individual BGO blocks or block arrays and tested on a DGO block (2×2 cm with 7×7 elements on 4 PMT). The block was well decoded even at 800 kcps, which is 6-7× higher than the typical maximum rate of 130 kcps for BGO blocks. The position-decoding electronics may be used to increase the maximum imaging-rate of regular BGO PET or to compensate for the lower imaging rate of the PMT-quadrant-sharing detector design, which doubles spatial resolution in both transaxial and axial directions.",

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AU - Li, Hongdi

AU - Wong, Wai Hoi

AU - Uribe, Jorge

AU - Baghaei, Hossain

AU - Zhang, Nan

AU - Wang, Junming

AU - Yu Wang, Wang

PY - 2000

Y1 - 2000

N2 - A high-speed prototype electronics for positioning gamma event at BGO block detectors in PET has been developed. It adapts the "high-yield pileup-event recovery" method (HYPER) proposed by us for nonimaging probes and gamma camera, HYPER uses recurring residual subtractions for multiple/continuous pileup conditions. The regular Anger positioning algorithm was modified by the HYPER method. The HYPER-Anger positioning circuit was designed for individual BGO blocks or block arrays and tested on a DGO block (2×2 cm with 7×7 elements on 4 PMT). The block was well decoded even at 800 kcps, which is 6-7× higher than the typical maximum rate of 130 kcps for BGO blocks. The position-decoding electronics may be used to increase the maximum imaging-rate of regular BGO PET or to compensate for the lower imaging rate of the PMT-quadrant-sharing detector design, which doubles spatial resolution in both transaxial and axial directions.

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A high speed position-decoding electronics for BGO block detectors in PET

Abstract

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