A5045381962- 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
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Radiation Detection and Scintillator Technologies
- CCD and CMOS Imaging Sensors
- Distributed and Parallel Computing Systems
- Black Holes and Theoretical Physics
- Astrophysics and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Advancements in Semiconductor Devices and Circuit Design
- Advanced Data Storage Technologies
- advanced mathematical theories
- Atomic and Subatomic Physics Research
- Particle Accelerators and Free-Electron Lasers
- Muon and positron interactions and applications
- Superconducting Materials and Applications
- Radiation Effects in Electronics
- Big Data Technologies and Applications
- Advanced Semiconductor Detectors and Materials
- Particle accelerators and beam dynamics
European Organization for Nuclear Research
2011-2025
Stony Brook University
2017-2025
Brandeis University
2019-2024
Universitat de València
2021-2024
SR Research (Canada)
2024
Federación Española de Enfermedades Raras
2024
A. Alikhanyan National Laboratory
2024
Institute of High Energy Physics
2024
Hanoi University of Science and Technology
2024
Atlas Scientific (United States)
2024
During the shutdown of CERN Large Hadron Collider in 2013-2014, an additional pixel layer was installed between existing Pixel detector ATLAS experiment and a new, smaller radius beam pipe. The motivation for this new layer, Insertable B-Layer (IBL), to maintain or improve robustness performance tracking system, given higher instantaneous integrated luminosities realised following shutdown. Because extreme radiation collision rate environment, several radiation-tolerant sensor electronic...
Depleted Monolithic Active Pixel Sensor (DMAPS) prototypes developed in the TowerJazz 180 nm CMOS imaging process have been designed context of ATLAS upgrade Phase-II at HL-LHC. The pixel sensors are characterized by a small collection electrode (3 $\mu$m) to minimize capacitance, size ($36.4\times 36.4$ $\mu$m), and produced on high resistivity epitaxial p-type silicon. design targets radiation hardness $1\times10^{15}$ 1 MeV n$_{eq}$/cm$^{2}$, compatible with outermost layer ITK detector....
MALTA2 is a depleted monolithic active pixel sensor (DMAPS) designed for tracking at high rates and typically low detection threshold of $\sim150\,\mathrm{e^-}$. A precise knowledge the crucial to understanding charge collection in specifying environment application. simple procedure developed calibrate unit electrons making use dedicated injection circuit an Fe-55 source with dominant deposition $1600\, \mathrm{e^-}$. The voltage determined which corresponds under exposure basis...
MALTA2 is a Depleted Monolithic Active Pixel Sensor designed to meet the challenging requirements of future collider experiments, in particularly extreme radiation tolerance and high hit rate. The sensor fabricated modified Tower 180 nm CMOS imaging technology mitigate performance degradation caused by 100 MRad Total Ionising Dose greater than 10^{15} 1 MeV n_{eq}/cm^2 Non-Ionising Energy Loss. samples have been tested during CERN SPS test beam campaign 2023-2024, before after irradiation at...
Simplified Template Cross Sections (STXS) have been adopted by the LHC experiments as a common framework for Higgs measurements. Their purpose is to reduce theoretical uncertainties that are directly folded into measurements much possible, while at same time allowing combination of between different decay channels well experiments. We report complete, revised definition STXS kinematic bins (stage 1.1), which be used upcoming ATLAS and CMS using full Run 2 datasets. The main focus on three...
The ATLAS collaboration is currently investigating CMOS monolithic pixel sensors for the outermost layer of upgrade its Inner Tracker (ITk). For this application, two large scale prototypes featuring small collection electrode have been produced in a radiation-hard process modification standard 0.18 μm imaging technology: MALTA, with novel asynchronous readout, and TJ MONOPIX, based on well established "column-drain" architecture. MALTA chip first full-scale prototype suitable development...
MALTA is part of the Depleted Monolithic Active Pixel sensors designed in Tower 180nm CMOS imaging technology. A custom telescope with six planes has been developed for test beam campaigns at SPS, CERN, ability to host several devices under test. The system a dedicated readout, online monitoring integrated into DAQ realtime hit map, time distribution and event multiplicity. It hosts fully configurable trigger enabling on coincidence between timing reference from scintillator. excellent...
The High Granularity Timing Detector (HGTD) will be installed in the ATLAS experiment to mitigate pile-up effects during Luminosity (HL) phase of Large Hadron Collider (LHC) at CERN. Low Gain Avalanche Detectors (LGADs) provide high-precision measurements time arrival particles HGTD, improving particle-vertex assignment. To cope with high-radiation environment, LGADs have been optimized by adding carbon gain layer, thus reducing acceptor removal rate after irradiation. Performances several...
Abstract Depleted Monolithic Active Pixel Sensor (DMAPS) sensors developed in the Tower Semiconductor 180 nm CMOS imaging process have been designed context of ATLAS ITk upgrade Phase-II at HL-LHC and for future collider experiments. The “MALTA-Czochralski (MALTA-Cz)” full size DMAPS sensor has with goal to demonstrate a radiation hard, thin high granularity, hit-rate capability, fast response time superior tolerance. design targets hardness > 10 15 (1 MeV) n eq /cm 2 100 Mrad TID. shall...
In this article, a low-power, radiation-hard front-end circuit for monolithic pixel sensors, designed to meet the requirements of low noise and pixel-to-pixel variability, key features achieve high detection efficiencies, is presented. The sensor small collection electrode capacitance (<5 fF) allows full CMOS in-pixel circuitry. implemented in 180-nm imaging technology from TowerJazz foundry integrated into MALTA2 chip, which part development that targets specifications outer layer ATLAS...
In order to stimulate new engagement and trigger some concrete studies in areas where further work would be beneficial towards fully understanding the physics potential of an $e^+e^-$ Higgs / Top Electroweak factory, we propose define a set focus topics. The general reasoning proposed topics are described this document.
Abstract MALTA2 is the latest full-scale prototype of MALTA family Depleted Monolithic Active Pixel Sensors (DMAPS) produced in Tower Semiconductor 180 nm CMOS sensor imaging technology. In order to comply with requirements high energy physics (HEP) experiments, various process modifications and front-end changes have been implemented achieve low power consumption, reduce random telegraph signal (RTS) noise, optimise charge collection geometry. Compared its predecessors, targets use a...
A bstract Sources of CP violation beyond the Standard Model (BSM) are required to explain baryonic asymmetry Universe. In this work, we study BSM CP-violating components in HWW interaction WH production, parametrized by an effective dimension-6 CP-odd operator. We explore a machine learning simulation-based inference method that estimates detector-level optimal observable — SALLY comparing it with energy-dependent and angular observables, exploring different binnings for their distributions....
Radiation hard silicon sensors are required for the upgrade of ATLAS tracking detector High-Luminosity Large Hadron Collider (HL-LHC) at CERN. A process modification in a standard 0.18 μm CMOS imaging technology combines small, low-capacitance electrodes (~2 fF sensor) with fully depleted active sensor volume. This results radiation hardness promising to meet requirements ITk outer pixel layers (1.5×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Abstract The MALTA family of Depleted Monolithic Active Pixel Sensor (DMAPS) produced in Tower 180 nm CMOS technology targets radiation hard applications for the HL-LHC and beyond. Several process modifications front-end improvements have resulted hardness up to 2 × 10 15 1 MeV n eq /cm time resolution below ns, with uniform charge collection efficiency across pixel size 36.4 μm a 3 electrode size. MALTA2 demonstrator 2021 on high-resistivity epitaxial silicon Czochralski substrates...
MALTA2 is the latest full-scale prototype of MALTA family Depleted Monolithic Active Pixel Sensors (DMAPS) produced in Tower Semiconductor 180 nm CMOS technology. In order to comply with requirements High Energy Physics (HEP) experiments, various process modifications and front-end changes have been implemented achieve low power consumption, reduce Random Telegraph Signal (RTS) noise, optimise charge collection geometry. Compared its predecessors, targets use a high-resistivity, thick...
Abstract The MALTA family of depleted monolithic pixel sensors produced in TowerJazz 180 nm CMOS technology target radiation hard applications for the HL-LHC and beyond. Several process modifications front-end improvements have resulted hardness >10 15 1 MeV n eq /cm 2 time resolution below ns, with uniform charge collection efficiency across size 36.4 × µm small electrode. This contribution will present comparison samples on high-resistivity epitaxial silicon Czochralski substrates,...
Depleted Monolithic Active Pixel Sensors (DMAPS) are an option for the outermost layer of upgraded ATLAS ITk Detector at CERN LHC. Two large size DMAPS named TJ MALTA and Monopix were produced in TowerJazz 180 nm CMOS imaging process a small collection electrode design. The chip combines low power front end with novel matrix readout design to achieve consumption <80 mW/cm2. Threshold values 250 e- dispersion 30 ENC < 10e- can be achieved before irradiation which is consistent results from...
MALTA is a depleted monolithic active pixel sensor (DMAPS) developed in the Tower Semiconductor 180-nm CMOS imaging process.Monolithic sensors offer advantages over current hybrid terms of both increased tracking performance due to lower material budget