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A hybrid pixel detector working in the single photon counting mode was designed for the High Energy Photon Source (HEPS) in China. Aiming for diffraction and protein crystallography applications, the pixel readout chip works in single photon counting mode in each pixel. It contains an array of 104 × 72 pixels with a pixel size of 150μm×150 μm, each owning a counting depth of 20bits. Different from...
In SPADnet we have advocated the use of standardized photonic modules for modular assembly of PET systems. In this paper, we tackle the scalability problem, starting from synchronization. Since the photonic modules in a ring must ensure tens of picoseconds in timing accuracy, it is essential that the synchronization of each module be accurate, irrespective of the number of modules in a ring, the ring's...
The Compact Muon Solenoid (CMS) experiment operating at the CERN (European Laboratory for Nuclear Physics) Large Hadron Collider (LHC) is in the process of upgrading several of its detector systems. Adding more individual detector components brings the need to test and commission those components separately from existing ones so as not to compromise physics data-taking. The CMS Trigger, Timing and...
A low-power and low-noise synchronous front-end chain in a commercial 65 nm CMOS technology suitable for the future pixel upgrades at the CERN Large Hadron Collider (LHC) is presented. A shaper-less Charge-Sensitive Amplifier (CSA) with constant current feedback provides triangular pulse shaping for linear Time-over-Threshold (ToT) charge measurement. The sensor leakage current is compensated by the...
The NA62 experiment at the CERN-SPS is designed to study the K + → π+νν ultra-rare decay using a high intensity hadron beam and detecting its decay products. The lowest level (Level-0, L0) trigger processor represents a crucial component in reducing the event rate, estimated to be about 10 MHz for most of the sub-detectors which form the trigger, by a factor 10 with a maximum admitted latency of 1...
This paper presents a 16-Channel, 12-Bit, 500 MHz ADC/Data Processing Module, designed for the KOTO Experiment at the Japan Proton Accelerator Research Complex (J-PARC). Few hundreds of this 6U VME board will receive signals from various detectors of the apparatus, and will be the digitizing modules in the Experiment's Data Acquisition System (DAQ). In KOTO, the main ADC/DAQ system runs at a 125 MHz...
The NA62 experiment at the European Organization for Nuclear Research (CERN) Super Proton Synchrotron (SPS) aims to measure the Branching Ratio of the very rare kaon decay K+ → π+νν, collecting O (100) events with a 10% background to make a stringent test of the Standard Model. One of the main backgrounds to the proposed measurement is represented by the K+ → π+π0, decay. To suppress this background...
A front-end channel prototype for pixel detectors has been designed for the upgrades of the HL-LHC experiments. The circuit is based on a Krummenacher feedback network to continuously reset the charge sensitive amplifier and on a fast threshold discriminator to implement a time-over-threshold (ToT) method and perform amplitude measurement. The circuit was developed in a 65 nm CMOS technology and takes...
The Heavy Photon Search (HPS) experiment at Thomas Jefferson National Accelerator Facility (JLab) will search for heavy photons, which are new hypothesized massive vector bosons. The experiment consists of an electromagnetic calorimeter and Silicon Vertex Tracker (SVT). The SVT Data Acquisition System (DAQ) supports readout and processing of signals from 36 silicon strip sensors of the SVT. It also...
The Level-1 Data Driver Card (L1DDC) will be fabricated for the needs of the future upgrades of the ATLAS experiment at CERN. Specifically, these upgrades will be performed in the innermost stations of the muon spectrometer end-caps. The L1DDC board is a high speed aggregator board capable of communicating with a large number of front-end electronics. It collects the Level-1 along with monitoring...
An automatic calibration process for the LabPET II detector front-end module has been developed. By aiming at sub-millimetric spatial resolution, an unprecedented channel density is reached. The new detector front-end module is based on an application-specific integrated circuit (ASIC) implementing a Time-over-Threshold (ToT) scheme to extract both energy and time information. Consequently manual...
In this contribution we presented the implementation of a tapped-delay-line (TDL) TDC with 8-channels in a Xilinx Kintex-7 FPGA device with r.m.s. value of the resolution around 20 ps. Main features of the instrument are the resource-saving and low-power architecture, the presence of an edge detector able to sense the position of the transition propagating along the delay line within one clock cycle,...
The increase of luminosity foreseen for the future upgrades of the Large Hadron Collider at CERN will require the complete redesign of the Front-End electronics in all the experiments. One of the goals of the RD53 collaboration is the development of a full set of radiation-tolerant IP-cores in view of the design in 2016 of the first prototype of the new Front-End circuit for the pixel detectors of...
SuperNEMO is the next-generation (0νββ) experiment based on a tracking plus calorimetry technique. The demonstrator is made of a calorimeter (712 channels) and a tracking detector (6102 channels). These detectors front-end electronics use an unified architecture. The calorimeter and tracker can operate separately. We have an overlap between the zoning of the calorimeter and the tracker. The final...
High-accuracy time synchronization is one of the most important issues for basic detector modules (BDMs) in the all-digital PET. The existing synchronization solutions are hard to extend as strict requirement to the wires and interfaces. Once the number of BDM changed, the whole system's synchronization should be rebuilt from the beginning. In this paper, a new high-accuracy time-sync solution based...
NaNet is a modular design of a family of FPGA-based PCIe Network Interface Cards specialized for low-latency real-time operations. NaNet features a Network Interface module that implements RDMA-style communications both with the host (CPU) and the GPU accelerators memories (GPUDirect P2P/RDMA) relying on the services of a high performance PCIe Gen3 x8 core. NaNet I/O Interface is highly flexible and...
A novel digital imaging system using silicon-photomultiplier (SiPM) sensors is currently under development at DESY, Hamburg, for applications in high energy physics and photon science. The system is a hybrid based on a thinned SiPM-sensor chip from MPG-HLL, Munich. The final readout chip will comprise a 32-by-32 pixel matrix with 50-μm pitch and will be realized in IBMs 130-nm CMOS technology. It...
Uniquely designed complex data acquisition system for Thomson scattering diagnostic was developed. It allows recording short duration (3–5 ns) scattered pulses with 2GHz sampling rate and 10-bit total resolution. The system consists up to 48 photo detector modules with 0–200MHz bandwidth, 1–48 simultaneously sampling ADC modules and synchronization subsystem. The photo detector modules are based on...
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