Implementation of a High-Rate USB Data Acquisition System for PET and SPECT Imaging

Proffitt, James; Hammond, William T.; Majewski, S.; Popov, V.; Raylman, Raymond R.; Weisenberger, A.G.

doi:10.1109/nssmic.2006.356521

Cited by 23 publications

(14 citation statements)

References 2 publications

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“…Flat panel MAPMT H9500 from Hamamatsu photonics has been successfully applied in high resolution gamma imaging systems, such as positron emission tomography (PET) and single photon emission computed tomography (SPECT) scanners [14]. The MAPMT's high number of pixels offers exceptional angular resolution when coupled to appropriately selected sensitive detector.…”

Section: Resistive Charge Division Networkmentioning

confidence: 99%

Design and development of a real-time readout electronics system to retrieve data from a square multi-anode photomultiplier tube for neutron gamma pulse shape discrimination

Cieślak

Gamage

2016

2016 IEEE-NPSS Real Time Conference (RT)

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Abstract-Pulse Shape Discrimination (PSD) algorithms can reliably separate neutrons and gamma-ray photons interacting in a scintillation detector. When implemented in the digital domain, the PSD algorithms allow real-time discrimination between neutron and gamma sources. This paper presents a design of a readout electronics system to retrieve data from a multi-anode photomultiplier tube (MAPMT) for a scintillator based codedaperture neutron imager. The scintillator is to be coupled with Hamamatsu H9500, a square MAPMT, where each anode of the MAPMT is linked to a resistor network to infer the position of incidence of radiation within the scintillant. Additionally, the resistor network output signals are to be filtered through a novel noise reduction circuit to preserve the data corresponding to each pulse. Localised pulses are digitised using high sampling rate Analogue to Digital Converter (ADC). Sampled signals are temporarily stored in a local ping-pong buffer, before being processed on a field programmable gate array (FPGA). Initial results suggest that 150 MSPS rate provides sufficient information for neutron gamma source discrimination using PSD. Parallel real-time signal processing, implemented on the FPGA, enables multi-channel functioning to generate an array of interactions within the scintillator in terms of gamma rays and neutrons.

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Section: Resistive Charge Division Networkmentioning

confidence: 99%

Design and development of a real-time readout electronics system to retrieve data from a square multi-anode photomultiplier tube for neutron gamma pulse shape discrimination

Cieślak

Gamage

2016

2016 IEEE-NPSS Real Time Conference (RT)

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“…The camera analog data are acquired by two field-programmable gate array (FPGA)-based units designed and built by AiT Instruments, Newport News, VA [17]. They incorporate simultaneous sampling gated integrators and 12-bit ADCs.…”

Section: Methodsmentioning

confidence: 99%

Development and Characterization of a Round Hand-Held Silicon Photomultiplier Based Gamma Camera for Intraoperative Imaging

Popovic

Kross

Lee

et al. 2014

IEEE Trans. Nucl. Sci.

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This paper describes the development of a hand-held gamma camera for intraoperative surgical guidance that is based on silicon photomultiplier (SiPM) technology. The camera incorporates a cerium doped lanthanum bromide (LaBr3:Ce) plate scintillator, an array of 80 SiPM photodetectors and a two-layer parallel-hole collimator. The field of view is circular with a 60 mm diameter. The disk-shaped camera housing is 75 mm in diameter, approximately 40.5 mm thick and has a mass of only 1.4 kg, permitting either hand-held or arm-mounted use. All camera components are integrated on a mobile cart that allows easy transport. The camera was developed for use in surgical procedures including determination of the location and extent of primary carcinomas, detection of secondary lesions and sentinel lymph node biopsy (SLNB). Here we describe the camera design and its principal operating characteristics, including spatial resolution, energy resolution, sensitivity uniformity, and geometric linearity. The gamma camera has an intrinsic spatial resolution of 4.2 mm FWHM, an energy resolution of 21.1 % FWHM at 140 keV, and a sensitivity of 481 and 73 cps/MBq when using the single- and double-layer collimators, respectively.

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“…We used our standard solution for the data acquisition system: the FPGA-based USB data acquisition system initially designed at Jlab [7,8] and now available from AiT Instruments. This system has a modular, extensible architecture with up to 64 channels of simultaneous-sampling ADCs per unit and a sustained trigger rate of over 150 kHz for all 64 channels.…”

Section: Apparatus and Experimental Methodsmentioning

confidence: 99%

Development of a mini gamma camera for prostate imaging

Majewski

Proffitt²,

Stolin

2011

2011 IEEE Nuclear Science Symposium Conference Record

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We have tested a concept of a mini gamma camera based on monolithic arrays of MPPCs from Hamamatsu. CsI(TI), and Cs(Na) arrays and a thin scintillation GSO plate were tested with 122 keY gammas from "Co sources. The planned application requires placement of this mini-camera in an endorectal probe and thus needs to be very compact and possess high spatial resolution. The high sensitivity and high granularity collimator and gamma shield made out composite material (tungsten powder with epoxy) completes the detector package. We are developing the dual modality (hybrid) imaging prostate probe combining in one compact device a high resolution and high efficiency single gamma imager with an Ultrasound (US) sensor. The US component will typically provide not only the usual structural 3D information, as the standard TransRectal Ultrasound (TRUS) probe, but also the tissue differentiating information through proper US signal analysis, such as elastography. The mini gamma probe will provide the direct metabolic information related to the biological state of the prostate and specifically about the presence of any cancerous structures exhibiting increased metabolic activity, when used with the single gamma labeled dedicated imaging agents for prostate cancer. In addition to cancer diagnosis, the dual-modality Gamma/US prostate probe can be used in biopsy and in surgical guidance.

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Implementation of a High-Rate USB Data Acquisition System for PET and SPECT Imaging

Cited by 23 publications

References 2 publications

Design and development of a real-time readout electronics system to retrieve data from a square multi-anode photomultiplier tube for neutron gamma pulse shape discrimination

Design and development of a real-time readout electronics system to retrieve data from a square multi-anode photomultiplier tube for neutron gamma pulse shape discrimination

Development and Characterization of a Round Hand-Held Silicon Photomultiplier Based Gamma Camera for Intraoperative Imaging

Development of a mini gamma camera for prostate imaging

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