Front end electronics for a variable field PET camera using the PMT-quadrant-sharing detector array design

Wai Hoi Wong; Guoji Hu; Nan Zhang; Jorge Uribe; Junming Wang; Hongdi Li; Weizhao Lu; Hossain Baghaei; Shigeru Yokoyama

Front end electronics for a variable field PET camera using the PMT-quadrant-sharing detector array design

Wai Hoi Wong, Guoji Hu, Nan Zhang, Jorge Uribe, Junming Wang, Hongdi Li, Weizhao Lu, Hossain Baghaei, Shigeru Yokoyama

Cancer Systems Imaging

Research output: Contribution to conference › Paper › peer-review

Abstract

This is an electronic design for a PET camera with 8 arrays of position sensitive detectors. Each array has 16 BGO blocks (each block is composed of 49 crystals). The design goals are component and space reduction. Each PMT has its fast amplifier and triggered integrator. Nine flash ADC serve an array of 27 PMT and 784 crystals. The fast signals from one or more PMT clusters are summed. The fast summed signals are thresholded and sent to a programmable logic to determines the probable scintillation zone (4 blocks) and to turn on the associated 9 PMT integrators. After integration, the logic also drives a set of ultra-fast analog switches to connect the flash ADC set to the PMT integration channels in the scintillation zone. The 9 ADC output (integrated pulses with good photon statistics) are latched and compared. The comparator result determines which block in the zone is firing and the appropriate 4 ADC are selected and bused into a position decoder. The decoder outputs the image-slice address and the crystal address. The circuit is pipelined and driven by a 250 MHz master clock. The maximum event-processing rate for the circuit and a random radiation l source is 2×10⁶/sec (with 10:1 randomness allowance).

Original language	English (US)
Pages	1320-1324
Number of pages	5
State	Published - 1996
Event	Proceedings of the 1996 IEEE Nuclear Science Symposium. Part 1 (of 3) - Anaheim, CA, USA Duration: Nov 2 1996 → Nov 9 1996

Other

Other	Proceedings of the 1996 IEEE Nuclear Science Symposium. Part 1 (of 3)
City	Anaheim, CA, USA
Period	11/2/96 → 11/9/96

ASJC Scopus subject areas

Radiation
Nuclear and High Energy Physics
Radiology Nuclear Medicine and imaging

Cite this

@conference{2485b27517dd4bb1917055d691e76440,

title = "Front end electronics for a variable field PET camera using the PMT-quadrant-sharing detector array design",

abstract = "This is an electronic design for a PET camera with 8 arrays of position sensitive detectors. Each array has 16 BGO blocks (each block is composed of 49 crystals). The design goals are component and space reduction. Each PMT has its fast amplifier and triggered integrator. Nine flash ADC serve an array of 27 PMT and 784 crystals. The fast signals from one or more PMT clusters are summed. The fast summed signals are thresholded and sent to a programmable logic to determines the probable scintillation zone (4 blocks) and to turn on the associated 9 PMT integrators. After integration, the logic also drives a set of ultra-fast analog switches to connect the flash ADC set to the PMT integration channels in the scintillation zone. The 9 ADC output (integrated pulses with good photon statistics) are latched and compared. The comparator result determines which block in the zone is firing and the appropriate 4 ADC are selected and bused into a position decoder. The decoder outputs the image-slice address and the crystal address. The circuit is pipelined and driven by a 250 MHz master clock. The maximum event-processing rate for the circuit and a random radiation l source is 2×106/sec (with 10:1 randomness allowance).",

author = "Wong, {Wai Hoi} and Guoji Hu and Nan Zhang and Jorge Uribe and Junming Wang and Hongdi Li and Weizhao Lu and Hossain Baghaei and Shigeru Yokoyama",

note = "Copyright: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.; Proceedings of the 1996 IEEE Nuclear Science Symposium. Part 1 (of 3) ; Conference date: 02-11-1996 Through 09-11-1996",

year = "1996",

language = "English (US)",

pages = "1320--1324",

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T1 - Front end electronics for a variable field PET camera using the PMT-quadrant-sharing detector array design

AU - Wong, Wai Hoi

AU - Hu, Guoji

AU - Zhang, Nan

AU - Uribe, Jorge

AU - Wang, Junming

AU - Li, Hongdi

AU - Lu, Weizhao

AU - Baghaei, Hossain

AU - Yokoyama, Shigeru

PY - 1996

Y1 - 1996

N2 - This is an electronic design for a PET camera with 8 arrays of position sensitive detectors. Each array has 16 BGO blocks (each block is composed of 49 crystals). The design goals are component and space reduction. Each PMT has its fast amplifier and triggered integrator. Nine flash ADC serve an array of 27 PMT and 784 crystals. The fast signals from one or more PMT clusters are summed. The fast summed signals are thresholded and sent to a programmable logic to determines the probable scintillation zone (4 blocks) and to turn on the associated 9 PMT integrators. After integration, the logic also drives a set of ultra-fast analog switches to connect the flash ADC set to the PMT integration channels in the scintillation zone. The 9 ADC output (integrated pulses with good photon statistics) are latched and compared. The comparator result determines which block in the zone is firing and the appropriate 4 ADC are selected and bused into a position decoder. The decoder outputs the image-slice address and the crystal address. The circuit is pipelined and driven by a 250 MHz master clock. The maximum event-processing rate for the circuit and a random radiation l source is 2×106/sec (with 10:1 randomness allowance).

AB - This is an electronic design for a PET camera with 8 arrays of position sensitive detectors. Each array has 16 BGO blocks (each block is composed of 49 crystals). The design goals are component and space reduction. Each PMT has its fast amplifier and triggered integrator. Nine flash ADC serve an array of 27 PMT and 784 crystals. The fast signals from one or more PMT clusters are summed. The fast summed signals are thresholded and sent to a programmable logic to determines the probable scintillation zone (4 blocks) and to turn on the associated 9 PMT integrators. After integration, the logic also drives a set of ultra-fast analog switches to connect the flash ADC set to the PMT integration channels in the scintillation zone. The 9 ADC output (integrated pulses with good photon statistics) are latched and compared. The comparator result determines which block in the zone is firing and the appropriate 4 ADC are selected and bused into a position decoder. The decoder outputs the image-slice address and the crystal address. The circuit is pipelined and driven by a 250 MHz master clock. The maximum event-processing rate for the circuit and a random radiation l source is 2×106/sec (with 10:1 randomness allowance).

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T2 - Proceedings of the 1996 IEEE Nuclear Science Symposium. Part 1 (of 3)

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ER -

Front end electronics for a variable field PET camera using the PMT-quadrant-sharing detector array design

Abstract

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ASJC Scopus subject areas

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