A5051266145- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- Dark Matter and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Radiation Detection and Scintillator Technologies
- Black Holes and Theoretical Physics
- Nuclear physics research studies
- Stochastic processes and statistical mechanics
- Atomic and Subatomic Physics Research
- CCD and CMOS Imaging Sensors
- Advanced X-ray and CT Imaging
- Superconducting Materials and Applications
- Advancements in Semiconductor Devices and Circuit Design
- Advanced Memory and Neural Computing
- Advanced Data Storage Technologies
- Radio Astronomy Observations and Technology
- Geophysics and Gravity Measurements
- Electron and X-Ray Spectroscopy Techniques
- Probability and Statistical Research
- Markov Chains and Monte Carlo Methods
European Organization for Nuclear Research
2019-2025
RWTH Aachen University
2023-2024
Universitat de Barcelona
2023
École Polytechnique Fédérale de Lausanne
2020-2023
Abstract Timepix4 is a 24.7 × 30.0 mm 2 hybrid pixel detector readout ASIC which has been designed to permit tiling on 4 sides. It consists of 448 512 pixels can be bump bonded sensor with square at pitch 55 µm. Like its predecessor, Timepix3, it operate in data driven mode sending out information (Time Arrival, ToA and Time over Threshold, ToT) only when hit above pre-defined programmable threshold. In this hits tagged time bin <200 ps record correctly incoming rates ∼3.6 MHz/mm /s....
X-ray imaging is a widely used modality in the medical diagnostic field due to its availability, low cost, high spatial resolution, and fast image acquisition. photons standard sources are polychromatic. Detectors that allow extract "color" information of individual X-rays can lead contrast enhancement, improved material identification or reduction beam hardening artifacts at system level, if we compare them with spread energy integrating detectors. Today, computed tomography (CT),...
Abstract The Medipix4 chip is the latest member in Medipix/Timepix family of hybrid pixel detector chips aimed at high-rate spectroscopic X-ray imaging using high-Z materials. It can be tiled on all 4 sides making it ideal for constructing large-area detectors with minimal dead area. designed to read out a sensor 320 × pixels dimensions 75 μm× μm or 160 150 μm. readout architecture features energy binning single photons, which includes charge sharing correction hits spread over adjacent...
The Timepix2 ASIC (application-specific integrated circuit) is the upgraded successor to Timepix [1] hybrid pixel detector readout chip. Like original, contains a matrix of 65k square pixels 55 μm pitch that can be coupled similarly segmented semiconductor sensor, or in an ionising gas detector. are programmable, with several operation modes and selectable counter depths (up 18 bits for time-of-arrival, ToA, up 14 time-over-threshold, ToT). In ToT ToA mode, each records arrival time energy...
This manuscript describes the optimization of front-end readout electronics for high granularity hybrid pixel detectors. The theoretical study aims at minimizing noise and jitter. model presented here is validated with both circuit post layout simulations measurements on Timepix4 Application Specific Integrated Circuit (ASIC). analog procedure to optimize dimensions main transistors are described detail. most recent ASIC designed in framework Medipix4 Collaboration. It was manufactured 65 nm...
Power consumption is always a concern in the design of readout chips for hybrid pixel detectors. The Timepix3 chip capable dealing with up to 80 Mhits/cm2/sec and tagging each hit within time bin 1.56 ns. At full speed will consume 1.3 W. We consider how reduce power if rate and/or stamp precision not important. analog can be reduced by more than an order magnitude little impact on noise reducing bias current input transistor increasing return zero preamplifier. Digital might ∼ 6× lower...
Abstract This work presents the development of a front-end simulation code for Timepix3 readout chip [1], intended as digitizer stage in full detector simulation. The electronics is modelled using an integrator and 3 parallel feedback loops with individually configurable time constants. main discharging consists low-pass filtered loops. leakage current compensation approximated by additional independent feed-back loop. system noise bandwidth limited channels pre-amplifier, threshold noise....
The Medipix4 chip is the latest member in Medipix/Timepix family of hybrid pixel detector chips aimed at high-rate spectroscopic X-ray imaging using high-Z materials. It can be tiled on all 4 sides making it ideal for constructing large-area detectors with minimal dead area. designed to read out a sensor 320 x pixels dimensions 75 {\mu}m or 160 150 {\mu}m. readout architecture features energy binning single photons, which includes charge sharing correction hits spread over adjacent pixels....
Abstract The Medipix3 Collaboration has developed the Timepix3 chip, which can provide information about individual particles interacting with a hybrid pixelated semiconductor detector. generates data packet including time and energy for each pixel receiving charge above discriminator threshold. From set of such packages generated by one particle total deposited sub-pixel center mass (c.m) position interaction be calculated. However, sub-threshold losses will distort both measured c.m...
The High Energy Physics (HEP) microelectronic design community is leading a CMOS technology change from Application Specific Integrated Circuit (ASIC) designs in 130nm and 65nm to 28nm for the future upgrades of Luminosity Large Hadron Collider (LHC). newer one last planar bulk technologies allows benefiting advances like higher intrinsic density speed. increased radiation hardness makes this also inevitable withstand LHC experiments with levels Total Ionizing Dose (TID) beyond 1 Grad. We...
The field of detector readout electronics for precise timing has experienced a remarkable surge interest due to its diverse range applications in nuclear medicine such as Positron Emission Tomography (PET), High Energy Physics (HEP), Time-of-Flight (ToF) mass spectrometry and many other fields. This growth can be attributed rapid advancements photodetectors, particularly the silicon photomultiplier (SiPM), which demonstrated exceptional suitability these applications, owing ability generate...