Front-end electronics for Silicon photo-multipliers coupled to fast scintillators

Corsi, F.; Argentieri, A.; Foresta, M.; Marzocca, C.; Matarrese, G.; Guerra, A. Del

doi:10.1109/nssmic.2010.5873986

Cited by 7 publications

(8 citation statements)

References 11 publications

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“…For fast timing electronics, an alternative solution consists in detecting the transition of the current signal using a current mode input stage [2,3]. In this case, a valid event is detected when the current pulse exceeds a certain threshold regardless of the integrated charge.…”

Section: Introductionmentioning

confidence: 99%

A comparative study of the time performance between NINO and FlexToT ASICs

et al. 2017

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Universitat de Barcelona (UB) and CIEMAT have designed the FlexToT ASIC for the front-end readout of SiPM-based scintillator detectors. This ASIC is aimed at time of flight (ToF) positron emission tomography (PET) applications. In this work we have evaluated the time performance of the FlexToT v2 ASIC compared to the NINO ASIC, a fast ASIC developped at CERN. NINO electronics give 64 ps sigma for single-photon time resolution (SPTR) and 93 ps FWHM for coincidence time resolution (CTR) with 2 × 2 × 5 mm3 LSO:Ce,Ca crystals and S13360-3050CS SiPMs. Using the same SiPMs and crystals, the FlexToT v2 ASIC yields 91 ps sigma for SPTR and 123 ps FWHM for CTR. Despite worse time performace than NINO, FlexToT v2 features lower power consumption (11 vs. 27 mW/ch) and linear ToT energy measurement.

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Section: Introductionmentioning

confidence: 99%

A comparative study of the time performance between NINO and FlexToT ASICs

et al. 2017

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“…116 It also performs a programmable integration, and time stamping and digitization. A multi-University Italian collaboration has developed a specific ASIC, 117 called BASIC, 118 initially an 8-channel, now a 32-channel, 119 coupled to a dedicated fast electronic readout based on FPGA. The main features of the ASIC are that it is based on a current amplifier, the output of which is duplicated by current mirrors, so as to allow simultaneous high time resolution and energy measurement.…”

Section: Iiib5 Dedicated Asic and Data Acquisition Read-out Electrmentioning

confidence: 99%

An outlook on future design of hybrid PET/MRI systems

2011

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Early diagnosis and therapy increasingly operate at the cellular, molecular, or even at the genetic level. As diagnostic techniques transition from the systems to the molecular level, the role of multimodality molecular imaging becomes increasingly important. Positron emission tomography (PET) and magnetic resonance imaging (MRI) are powerful techniques for in vivo molecular imaging. The inability of PET to provide anatomical information is a major limitation of standalone PET systems. Combining PET and CT proved to be clinically relevant and successfully reduced this limitation by providing the anatomical information required for localization of metabolic abnormalities. However, this technology still lacks the excellent soft-tissue contrast provided by MRI. Standalone MRI systems reveal structure and function but cannot provide insight into the physiology and/or the pathology at the molecular level. The combination of PET and MRI, enabling truly simultaneous acquisition, bridges the gap between molecular and systems diagnosis. MRI and PET offer richly complementary functionality and sensitivity; fusion into a combined system offering simultaneous acquisition will capitalize the strengths of each, providing a hybrid technology that is greatly superior to the sum of its parts. A combined PET/MRI system provides both the anatomical and structural description of MRI simultaneously with the quantitative capabilities of PET. In addition, such a system would allow exploiting the power of MR spectroscopy (MRS) to measure the regional biochemical content and to assess the metabolic status or the presence of neoplasia and other diseases in specific tissue areas. This paper briefly summarizes state-of-the-art developments and latest advances in dedicated hybrid PET/MRI instrumentation. Future prospects and potential clinical applications of this technology will also be discussed.

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“…The lower gain guarantees a 70 pC dynamic range, which has been optimized for the read-out of SiPMs coupled to LSO crystals painted black. An 8 channel version of this chip has already been tested [13] while a 32 channel design is already available and it is currently under test [6].…”

Section: Four Years Of Randd On Silicon Photomultipliersmentioning

confidence: 99%

“…In the framework of the DASiPM (Development and Application of SiPMs) project funded by INFN (Istituto Nazionale di Fisica Nucleare, Itay) we have deeply characterized both single elements SiPMs of different producers and matrices, and we have demonstrated that their characteristics in terms of energy resolution (below 15% FWHM at 511 keV), spatial resolution (0.9 mm FWHM when coupled to LSO slabs painted black) and time resolution (around 100 ps sigma for a single 3 Â 3 mm 2 SiPM coupled to LSO:Ce,Ca) [3,4] fulfill our requirements. In addition we have already developed a dedicated front-end in order to handle signals from SiPM matrices without degrading their large dynamic range [5,6]. Currently a custom modular acquisition system for the readout of two heads of a reduced size (2.4 Â 2.4 cm 2 ) prototype of the 4D-PET block detector is under development.…”

Section: Introductionmentioning

confidence: 99%