A5105513036- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Computational Physics and Python Applications
- Neutrino Physics Research
- Radiation Detection and Scintillator Technologies
- Cosmology and Gravitation Theories
- Astrophysics and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Distributed and Parallel Computing Systems
- Atomic and Subatomic Physics Research
- Medical Imaging Techniques and Applications
- Nuclear Physics and Applications
- advanced mathematical theories
- CCD and CMOS Imaging Sensors
- Superconducting Materials and Applications
- Black Holes and Theoretical Physics
- Radiation Effects in Electronics
- Muon and positron interactions and applications
- Advanced Data Storage Technologies
- Particle accelerators and beam dynamics
- Advanced DC-DC Converters
- Structural Analysis of Composite Materials
European Organization for Nuclear Research
2023-2025
Brookhaven National Laboratory
2015-2024
Fermi National Accelerator Laboratory
2024
University of Chicago
2024
Pontificia Universidad Católica de Chile
2023-2024
University of California, Santa Cruz
2018-2024
A. Alikhanyan National Laboratory
2024
Institute of High Energy Physics
2024
Atlas Scientific (United States)
2024
The University of Adelaide
2018-2023
HV-CMOS pixel sensors are a promising option for the tracker upgrade of ATLAS experiment at LHC, as well other future tracking applications in which large areas to be instrumented with radiation-tolerant silicon sensors. We present results testbeam characterisations $4^{\mathrm{th}}$ generation Capacitively Coupled Pixel Detectors (CCPDv4) produced ams H18 process that have been irradiated different particles (reactor neutrons and 18 MeV protons) fluences between $1\cdot 10^{14}$ $5\cdot...
The ATLAS Phase-I upgrade (2019) requires a Trigger and Data Acquisition (TDAQ) system able to trigger record data from up three times the nominal LHC instantaneous luminosity. Front-End LInk eXchange (FELIX) provides an infrastructure achieve this in scalable, detector agnostic easily upgradeable way. It is PC-based gateway, interfacing custom radiation tolerant optical links front-end electronics, via PCIe Gen3 cards, commodity switched Ethernet or InfiniBand network. FELIX enables...
The ATLAS detector has been designed for operation at CERN's Large Hadron Collider. includes a complex system of liquid argon calorimeters. This paper describes the architecture and implementation custom front end electronics developed readout
We present a front-end application-specific integrated circuit (ASIC) for wire based time-projection-chamber (TPC) operating in liquid Argon (LAr). The LAr TPC will be used long baseline neutrino oscillation experiments. ASIC must provide low-noise readout of the signals induced on wires, digitization those at 2 MSamples/s, compression, buffering and multiplexing. A resolution better than 1000 rms electrons 200 pF input capacitance an range 300 fC is required, along with low power operation...
The ATLAS detector has been designed for operation at CERN's Large Hadron Collider. includes a complex system of liquid argon calorimeters. electronics amplifying, shaping, sampling, pipelining, and digitizing the calorimeter signals is implemented on Front End Boards (FEBs). This paper describes design, implementation production FEBs presents measurement results from testing performed several stages during process.
The choice between cold and warm electronics (inside or outside the cryostat) in very large LAr TPCs (>5-10 ktons) is not an issue, but it rather a major cryostat design issue. This because location of signal processing has direct far reaching effect on design, indirect TPC electrode (sense wire spacing, length drift distance), significant performance. All these factors weigh so overwhelmingly favor that remains optimal solution for TPCs. In this paper noise considerations are summarized,...
In high energy physics and nuclear experiments, particularly the ones based on a particle accelerator, data rate from detector is usually in order of terabytes per second. These throughput front-end electronics (FEEs) need to be transmitted back-end computing farm for high-level event selection building. A acquisition (DAQ) system with features density, scalable, easily upgradeable crucial simplify readout architecture whole experiment. This article will introduce design generic bandwidth...
The ATLAS detector has been built to study the reactions produced by Large Hadron Collider (LHC). includes a system of liquid argon calorimeters for energy measurements. electronics amplifying, shaping, sampling, pipelining, and digitizing calorimeter signals is implemented on set front-end electronic boards. boards are installed in crates mounted between calorimeters, where they will be subjected significant levels radiation during LHC operation. As result, all components used had an...
For new detector and trigger systems to be installed in the ATLAS experiment after LHC Run 2, a approach will followed for Front-End electronics interfacing. The FELIX (Front-End LInk eXchange) system function as gateway connecting: on one side links, well providing timing information; other commodity switched network built using standard technology (either Ethernet or Infiniband). is described this paper, results achieved so far are presented.
Monolithic active pixel sensors (MAPS) based on commercial high-voltage CMOS processes are an exciting technology that is considered as option for the ATLAS Inner Tracker upgrade. Particles detected using deep n-wells a p-type substrate sensor diodes with depleted region extending into silicon bulk. With readout electronics and integrated same device, detector complexity material budget greatly reduced. The ATLASPix1 prototype large-scale MAPS implements full chain single physical chip. It...
Active pixel sensors based on the High-Voltage CMOS technology are being investigated as a viable option for future tracker of ATLAS experiment at High-Luminosity LHC. This paper reports testbeam measurements performed H8 beamline CERN Super Proton Synchrotron sensor prototype produced in 180 nm AMS technology. Results terms tracking efficiency and timing performance, different threshold bias conditions, shown.
The Phase-I upgrade of the trigger readout electronics for ATLAS liquid argon (LAr) calorimeters will be installed during second long shutdown Large Hadron Collider (LHC) in 2019-2020, which enable enhanced instantaneous luminosities LHC Run 3 from 2021 through 2023. In this upgrade, so-called supercells are introduced to provide higher granularity, resolution, and longitudinal shower shape information LAr Level-1 processors. A new digitizer board (LTDB) process digitize up 320 channels...
The LBNE Project is developing a design for multiple 20 kiloton liquid argon (LAr) time projection chambers to be used as the far detector Long Baseline Neutrino Experiment. An essential component of this complete electronic readout system designed operate in LAr (at 90K). This being implemented CMOS ASIC, 180 nm commercial technology, that will provide low-noise signals induced on TPC wires, digitization those at 2 MS/s, zero-suppression, buffering and output multiplexing small number...
High Voltage CMOS sensors are a promising technology for tracking detectors in collider experiments. Extensive R&D studies being carried out by the ATLAS Collaboration possible use of HV-CMOS Luminosity LHC upgrade Inner Tracker detector. CaRIBOu (Control and Readout Itk BOard) is modular test system developed to Silicon based detectors. It currently includes five custom designed boards, Xilinx ZC706 development board, FELIX (Front-End LInk eXchange) PCIe card host computer. A software...
The silicon-vertex tracker (SVT) for the BaBar Experiment at PEP-H Asymmetric B Factory Stanford Linear Accelerator Center (SLAC), is a five-layer double-sided ac-coupled silicon-microstrip detector. It crucial element precise measurement of decay position mesons, satisfying severe constraints imposed by accelerator design, in terms geometry interaction region and conditions operation. In following paper, SVT performance described. Radiation issues are discussed results different tests aimed...
This paper reports on the characterisation with Transient Current Technique measurements of charge collection and depletion depth a radiation-hard high-voltage CMOS pixel sensor produced at ams AG. Several substrate resistivities were tested before after proton irradiation two different sources: 24 GeV Proton Synchrotron CERN 16.7 MeV Cyclotron Bern Inselspital.
From the ATLAS Phase-I upgrade and onward, new or upgraded detectors trigger systems will be interfaced to data acquisition, detector control timing (TTC) by Front-End Link eXchange (FELIX). FELIX is core of Trigger/DAQ architecture. Functioning as a router between custom serial links commodity network, implemented server PCs with network interfaces PCIe cards large FPGAs many high speed fiber transceivers. By separating transport from manipulation, latter can done software in servers...