C. M. Buttar

ORCID: 0000-0003-0188-6491
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About
Contact & Profiles
Research Areas
  • 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
  • Astrophysics and Cosmic Phenomena
  • Black Holes and Theoretical Physics
  • Radiation Effects in Electronics
  • Advanced Semiconductor Detectors and Materials
  • Medical Imaging Techniques and Applications
  • Silicon and Solar Cell Technologies
  • Advancements in Semiconductor Devices and Circuit Design
  • Superconducting Materials and Applications
  • Atomic and Subatomic Physics Research
  • Advanced Data Storage Technologies
  • advanced mathematical theories
  • Particle Accelerators and Free-Electron Lasers
  • 3D IC and TSV technologies
  • Muon and positron interactions and applications

University of Glasgow
2016-2025

Atlas Scientific (United States)
2024

SR Research (Canada)
2024

Federación Española de Enfermedades Raras
2024

The University of Adelaide
2014-2023

Boston University
2019-2023

University of Sheffield
1999-2022

University of Oxford
1990-2021

University of Oslo
2021

Universitat de València
2021

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...

10.1088/1748-0221/13/05/t05008 article EN cc-by Journal of Instrumentation 2018-05-16

The ATLAS collaboration will upgrade its semiconductor pixel tracking detector with a new Insertable B-layer (IBL) between the existing and vacuum pipe of Large Hadron Collider. extreme operating conditions at this location have necessitated development radiation hard sensor technologies front-end readout chip, called FE-I4. Planar sensors 3D been investigated to equip layer, prototype modules using FE-I4A fabricated characterized 120 GeV pions CERN SPS 4 positrons DESY, before after module...

10.1088/1748-0221/7/11/p11010 article EN Journal of Instrumentation 2012-11-14

We present the FP420 R&D project, which has been studying key aspects of development and installation a silicon tracker fast-timing detectors in LHC tunnel at 420 m from interaction points ATLAS CMS experiments. These would measure precisely very forward protons conjunction with corresponding central as means to study Standard Model (SM) physics, search for characterise new physics signals. This report includes detailed description case detector and, particular, measurement Central Exclusive...

10.1088/1748-0221/4/10/t10001 article EN Journal of Instrumentation 2009-10-01

10.1016/j.nima.2006.08.036 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2006-09-12

The upgrade of the ATLAS [1] tracking detector for High-Luminosity Large Hadron Collider (LHC) at CERN requires novel radiation hard silicon sensor technologies. Significant effort has been put into development monolithic CMOS sensors but it a challenge to combine low capacitance sensing node with full depletion sensitive layer. Low brings analog power. Depletion layer causes signal charge be collected by drift sufficiently fast separate hits from consecutive bunch crossings (25 ns LHC) and...

10.1088/1748-0221/12/06/p06008 article EN cc-by Journal of Instrumentation 2017-06-07

Abstract Following the Phase-II upgrade during Long Shutdown (LS3), LHC aims to reach a peak instantaneous luminosity of 7.5× 10 34 cm -2 s -1 , which corresponds an average around 200 inelastic proton-proton collisions per beam-crossing (every 25 ns). To cope with these conditions, ATLAS Inner Detector will be replaced by new all-silicon system — Tracker (ITk). The ITk operational for more than ten years, time is expected record approximately 4000 fb data. ITk's pixel sub-system based on...

10.1088/1748-0221/20/01/p01029 article EN cc-by Journal of Instrumentation 2025-01-01

10.1016/j.nima.2007.04.157 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2007-05-04

This Report summarises the activities of "SM and Higgs" working group for Workshop "Physics at TeV Colliders", Les Houches, France, 2-20 May, 2005. On one hand, we performed a variety experimental theoretical studies on standard candles (such as W, Z, ttbar production), treating them either proper signals known physics, or backgrounds to unknown physics; also addressed issues relevant those non-perturbative semi-perturbative ingredients, such Parton Density Functions Underlying Events, whose...

10.48550/arxiv.hep-ph/0604120 preprint EN other-oa arXiv (Cornell University) 2006-01-01

The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to increase the total integrated luminosity per experiment more than 500 pb$^{-1}$. been machine excellence for study QCD structure proton. Large Hadron Collider (LHC), which will collide protons centre-of-mass energy 14 TeV, be completed at CERN 2007. main mission LHC is discover mechanisms electroweak...

10.48550/arxiv.hep-ph/0601013 preprint EN other-oa arXiv (Cornell University) 2006-01-01

10.1016/j.nima.2014.06.086 article EN publisher-specific-oa Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2014-07-14

Charge collection properties of particle detectors made in HV-CMOS technology were investigated before and after irradiation with reactor neutrons. Two different sensor types designed processed 180 350 nm by AMS. Edge-TCT charge measurements electrons from 90Sr source employed. Diffusion generated carriers undepleted substrate contributes significantly to the irradiation, while drift contribution prevails as shown at shaping times. The depleted region a given bias voltage was found grow...

10.1088/1748-0221/11/04/p04007 article EN Journal of Instrumentation 2016-04-04
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