J. H. Vossebeld
A5000749906- 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
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Neutrino Physics Research
- Radiation Detection and Scintillator Technologies
- Black Holes and Theoretical Physics
- Astrophysics and Cosmic Phenomena
- Distributed and Parallel Computing Systems
- Atomic and Subatomic Physics Research
- CCD and CMOS Imaging Sensors
- Superconducting Materials and Applications
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- advanced mathematical theories
- Muon and positron interactions and applications
- Radiation Effects in Electronics
- Nuclear Physics and Applications
- Radiation Therapy and Dosimetry
- Advanced X-ray and CT Imaging
- Advanced Data Storage Technologies
- Big Data Technologies and Applications
University of Liverpool
2015-2024
SR Research (Canada)
2024
Federación Española de Enfermedades Raras
2024
A. Alikhanyan National Laboratory
2024
The University of Adelaide
2014-2023
Folkwang University of the Arts
2023
University of Siegen
2023
D. Mendeleyev University of Chemical Technology of Russia
2023
University of Toronto
2023
Northern Illinois University
2023
We outline the experimental concept and key scientific capabilities of AION (Atom Interferometer Observatory Network), a proposed programme using cold strontium atoms to search for ultra-light dark matter, explore gravitational waves in mid-frequency range between peak sensitivities LISA LIGO/Virgo/ KAGRA/INDIGO/Einstein Telescope/Cosmic Explorer experiments, probe other frontiers fundamental physics. would complement planned searches as well mergers involving intermediate-mass black holes...
The Mu3e experiment aims to find or exclude the lepton flavour violating decay $\mu \rightarrow eee$ at branching fractions above $10^{-16}$. A first phase of using an existing beamline Paul Scherrer Institute (PSI) is designed reach a single event sensitivity $2\cdot 10^{-15}$. We present overview all aspects technical design and expected performance phase~I detector. high rate up $10^{8}$ muon decays per second low momenta electrons positrons pose unique set challenges, which we tackle...
A bstract The Compact Linear Collider (CLIC) is a proposed future high-luminosity linear electron-positron collider operating at three energy stages, with nominal centre-of-mass energies $$ \sqrt{s} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> = 380 GeV, 1 . 5 TeV, and 3 TeV. Its aim to explore the frontier, providing sensitivity physics beyond Standard Model (BSM) precision measurements of processes an emphasis on Higgs...
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 electric dipole moments~(EDM) of fundamental particles inherently violate parity~(P) and time-reversal~(T) symmetries. By virtue the CPT theorem in quantum field theory, latter also implies violation combined charge-conjugation parity~(CP) symmetry. We aim to measure EDM muon using frozen-spin technique within a compact storage trap. This method exploits high effective field, \$E \approx 165\$ MV/m, experienced rest frame with momentum about 23 MeV/c when it passes through solenoidal...
This letter of intent proposes an experiment to search for electric dipole moment the muon based on frozen-spin technique. We intend exploit high field, $E=1{\rm GV/m}$, experienced in rest frame with a momentum $p=125 {\rm MeV/}c$ when passing through large magnetic field $|\vec{B}|=3{\rm T}$. Current fluxes at $μ$E1 beam line permit improved sensitivity $σ(d_μ)\leq 6\times10^{-23}e{\rm cm}$, about three orders magnitude more than current upper limit $|d_μ|\leq1.8\times10^{-19}e{\rm...
Optical links are used for the readout of 4088 silicon microstrip modules that make up SemiConductor Tracker ATLAS experiment at CERN Large Hadron Collider (LHC). The optical link requirements reviewed, with particular emphasis on very demanding environment LHC. on-detector components have to operate in high radiation levels 10 years, no maintenance, and there strict power consumption, material space. A novel concept packaging optoelectronics has been developed meet these requirements....
HV-CMOS sensors can offer important advantages in terms of material budget, granularity and cost for large area tracking systems high energy physics experiments. This article presents the design simulated results an pixel demonstrator High Luminosity-LHC. The has been designed 0.35 μm process from ams AG submitted fabrication through engineering run. To improve response sensor, different wafers with moderate to substrate resistivities are used fabricate design. prototype consists four analog...
The SemiConductor Tracker (SCT) data acquisition (DAQ) system will calibrate, configure, and control the approximately six million front-end channels of ATLAS silicon strip detector. It provide a synchronized bunch-crossing clock to modules, communicate first-level triggers chips, transfer information about hit strips high-level trigger system. has been used extensively for calibration quality assurance during SCT barrel endcap assembly performance confirmation tests after transport barrels...
The CERN-RD50 collaboration has ongoing research to further develop monolithic High Voltage-CMOS (HV-CMOS) sensors in a 150 nm process for future particle physics experiments. As part of this programme, test chip (RD50-MPW2) that implements new methodologies low leakage current and fast low-noise readout circuitry been designed submitted fabrication. This article presents the design details simulation results 8 × matrix high-speed HV-CMOS pixels included RD50-MPW2, which two flavours are...
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.
We describe a proposal to search for an intrinsic electric dipole moment (EDM) of the proton with sensitivity \targetsens, based on vertical rotation polarization stored beam. The New Physics reach is order $10^~3$TeV mass scale. Observation EDM provides best probe CP-violation in Higgs sector, at level that may be inaccessible electron-EDM experiments. improvement $\theta_{QCD}$, parameter crucial axion and dark matter physics, about three orders magnitude.
Exploiting the advantages of reading out segmented silicon from n-side, we have produced test detectors with LHC pitch but 1-cm-long strips which even after proton irradiation at CERN PS (24 GeV protons) to 7.5/spl times/10/sup 15/ cm/sup -2/ show signal noise greater than 8:1 using speed electronics. This dose exceeds by a factor 2 that required for replacement ATLAS semiconductor tracker cope an upgrade Super-LHC ten times luminosity. These were processed on p-type starting material...
The ATLAS SemiConductor Tracker (SCT) is one of the largest existing semiconductor detectors. It situated between Pixel detector and Transition Radiation at four interaction points Large Hadron Collider (LHC). During 2006-2007 was lowered into cavern installed in its final position. For assembly, integration commissioning phase, a complete Detector Control System (DCS) developed to ensure safe operation tracker. This included control individual powering silicon modules, bi-phase cooling...