A5030618095- 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
- Black Holes and Theoretical Physics
- Radiation Detection and Scintillator Technologies
- Distributed and Parallel Computing Systems
- Astrophysics and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Atomic and Subatomic Physics Research
- Medical Imaging Techniques and Applications
- advanced mathematical theories
- Muon and positron interactions and applications
- Superconducting Materials and Applications
- Advanced Data Storage Technologies
- Big Data Technologies and Applications
- Radiation Therapy and Dosimetry
- Particle accelerators and beam dynamics
- Power Systems Fault Detection
- Digital Radiography and Breast Imaging
- Cold Atom Physics and Bose-Einstein Condensates
Charles University
2016-2025
Rutherford Appleton Laboratory
2011-2024
New York University
2024
A. Alikhanyan National Laboratory
2024
SR Research (Canada)
2024
Federación Española de Enfermedades Raras
2024
The University of Adelaide
2014-2023
European Organization for Nuclear Research
2011-2023
Argonne National Laboratory
2019-2023
Northern Illinois University
2023
The ATLAS Roman Pot system is designed to determine the total proton-proton cross section as well luminosity at Large Hadron Collider (LHC) by measuring elastic proton scattering very small angles. made of four stations, located in LHC tunnel a distance about 240 m both sides interaction point. Each station equipped with tracking detectors, inserted Pots which approach beams vertically. detectors consist multi-layer scintillating fibre structures read out Multi-Anode-Photo-Multipliers.
Low Gain Avalanche Detectors (LGADs) are silicon sensors with a built-in charge multiplication layer providing gain of typically 10 to 50. Due the combination high signal-to-noise ratio and short rise time, thin LGADs provide good time resolutions. an active thickness about 45 μm were produced at CNM Barcelona. Their gains resolutions studied in beam tests for two different implantation doses, as well before after irradiation neutrons up 1015 neq/cm2. The showed expected decrease fixed...
We present results of a toy model study performance the Time-of-Flight detectors integrated into forward proton detectors. The goal ToF device is to suppress effects additional soft processes (so called pile-up) accompanying hard-scale central diffractive event, characterized by two tagged leading protons, one on each side from interaction point. method mitigation pile-up exemplified in this based measuring difference between arrival times these protons at and hence estimate z-coordinate...
We study the space–time symmetries and transformation properties of non-commutative U(1) gauge theory, by using Noether charges. carry out our analysis keeping an open view on possible ways θ μν could transform. Since theory is not invariant under conformal transformations, with only exception translations, we conclude that most natural dynamically consistent requirement does transform any transformation. A similar should apply to other groups.
DOI: 10.1049/cp.2009.0917 ISBN: 978 1 84919 126 5 Location: Prague, Czech Republic Conference date: 8-11 June 2009 Format: PDF Large power system disturbances and their consequences, represent a challenging problem for the industry especially network operators, ones who are responsible operation at large, its security reliability. This fact has reinforced interest in new generation of monitoring systems with aim to gain if possible precise maximum knowledge about those impact. Most these...
We present the results of studies devoted to development and optimization optical part a high precision time-of-flight (TOF) detector for Large Hadron Collider (LHC). This work was motivated by proposal use such in conjunction with silicon tag measure protons from interactions type p + → X p, where two outgoing are scattered very forward directions. The fast timing uses fused silica (quartz) bars that emit Cherenkov radiation as relativistic particle passes through emitted photons detected...
We report on measurements of 1 and 1.5 MeV monoenergetic electrons with a Timepix3-based detector using 0.5 mm thick silicon sensor. A $^{90}$Sr $\beta$-emitting radioisotope was used as the source electrons, monochromator equipped an adjustable magnetic field employed to only pass desired energy into detector. provide experimental results deposited-energy spectrum in sensor linearity detected tracks. Alongside experiment, whole system has been modelled software Monte Carlo Geant4 /...
The paper deals with the issue of Asset Administration Shell (AAS), especially from point view production process optimization. From authors' view, Industry 4.0 brings main advantages in decentralization and thus independence individual machines, which will enable greater variability better response to failures. content is a description parts AAS that are closely related optimization, these active submodels for autonomous negotiation, optimization (evaluation criteria), predictive...
We present results of the timing performance studies optical part and front-end electronics time-of-flight subdetector prototype for ATLAS Forward Proton (AFP) detector obtained during test campaigns at CERN-SPS test-beam facility (120 GeV π+ particles) in July 2016 October 2016. The (ToF) conjunction with a 3D silicon pixel tracker will tag measure protons originating central exclusive interactions p + → X p, where two outgoing are scattered very forward directions. ToF is required to...
The performance of the ATLAS Forward Proton Time-of-Flight (ToF) Cherenkov detector is studied using data collected in 2017 during LHC Run2. detailed analysis results, including efficiency and time resolution ToF detector, discussed. construction its expected based on beam test results are briefly summarized first. Operational experiences presented. They include problems due to attempts operate Micro-Channel Plate Photomultiplier Tubes (MCP-PMTs) vacuum, leading changes construction. In...
We present the results of our performance studies upgraded Cherenkov time-of-flight (ToF) detector for AFP (ATLAS Forward Proton) project. The latest version consists solid L-shaped fused silica bars, new customized ALD-coated micro-channel plate photomultipliers (MCP-PMTs) miniPlanacon XPM85112-S-R2D2 with an extended lifetime which operate at low gains (order 10 3 ), and updated construction. improvements were aimed to increase efficiency, as well radiation hardness has been designed in...
There exist two versions of the covariant Schwinger term in literature. They only differ by a sign. However, we shall show that this is an essential difference. We carefully (taking all signs into account) review existing quantum field theoretical computations for order to determine correct expression.
We present the results of performance studies upgraded optical part time-of-flight subdetector prototype for AFP (ATLAS Forward Proton) detector obtained during test campaign in a synchrotron test-beam facility with 5 GeV electrons at DESY laboratory (Hamburg, Germany) June 2019. The detection particle arrival time is based on generation Cherenkov light an L-shaped fused silica bar. In previous version ToF, all bars were made two pieces (radiator and guide) glued together dedicated glue...
We analyze the generalized point-splitting method and Jo's result for commutator anomaly. find that certain classes of general regularization kernels satisfying integral conditions provide a unique result, which, however differs from Faddeev's cohomological result.
We calculate the equal-time commutator of two fermionic currents within framework 1+1 dimensional fully quantized theory, describing interaction massive fermions with a vector boson. It is shown that does not change result obtained theory free fermions.
The procedure for calculating controller parameters of the APFs, which are implemented into a multibus industrial power system harmonic voltage mitigation, is presented. node detection control strategy applied and found by solving modified multiple APF - problem. Thus, best places several APFs may be proposed, taking account also real as well predefined values THDs voltages at bus-bars where placed.