E. B. Klinkby
A5069043370- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Dark Matter and Cosmic Phenomena
- Nuclear reactor physics and engineering
- Atomic and Subatomic Physics Research
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Computational Physics and Python Applications
- Particle accelerators and beam dynamics
- Magnetic confinement fusion research
- Black Holes and Theoretical Physics
- Graphite, nuclear technology, radiation studies
- Superconducting Materials and Applications
- Nuclear Materials and Properties
- Astrophysics and Cosmic Phenomena
- Fusion materials and technologies
- Distributed and Parallel Computing Systems
- advanced mathematical theories
- Medical Imaging Techniques and Applications
- Muon and positron interactions and applications
- Radiation Therapy and Dosimetry
Technical University of Denmark
2015-2024
European Spallation Source
2014-2023
Jagiellonian University
2023
Institute of Physics
2023
ITER
2022
Fusion for Energy
2022
University of Copenhagen
2008-2020
Radiation Oncology Associates
2018
The University of Adelaide
2013-2014
École Polytechnique Fédérale de Lausanne
2013
The violation of Baryon Number, $\mathcal{B}$, is an essential ingredient for the preferential creation matter over antimatter needed to account observed baryon asymmetry in universe. However, such a process has yet be experimentally observed. HIBEAM/NNBAR %experiment program proposed two-stage experiment at European Spallation Source (ESS) search number violation. will include high-sensitivity searches processes that violate by one or two units: free neutron-antineutron oscillation...
This paper presents a summary of beam-induced backgrounds observed in the ATLAS detector and discusses methods to tag remove background contaminated events data. Trigger-rate based monitoring beam-related is presented. The correlations with machine conditions, such as residual pressure beam-pipe, are discussed. Results from dedicated beam-background simulations shown, their qualitative agreement data evaluated. Data taken during passage unpaired, i.e. non-colliding, proton bunches used...
The ATLAS TRT barrel is a tracking drift chamber using 52,544 individual tubular tubes. It one part of the Inner Detector, which consists three sub-systems: pixel detector spanning radius range 4 to 20 cm, semiconductor tracker (SCT) from 30 52 and transition radiation (TRT) 56 108 cm. covers central pseudo-rapidity region |η|< 1, while endcaps cover forward backward eta regions. These systems provide combination continuous with many measurements in tubes (or straws) electron identification...
A global approach coupling the moderator to beam extraction system has been applied for design optimization of thermal and cold moderators European Spallation Source (ESS), which will be brightest neutron source in world condensed-matter studies. The is based on recently developed high-brightness low-dimensional concepts. Para -hydrogen used source, while neutrons are provided by moderation water. overall configuration was chosen order satisfy a range requirements bispectral extraction,...
In a recent numerical optimization study we have found that liquid para-hydrogen coupled cold neutron moderators deliver 3–5 times higher brightness at spallation source if they take the form of flat, quasi 2-dimensional disc
A straw proportional counter is the basic element of ATLAS Transition Radiation Tracker (TRT). Its detailed properties as well main a few TRT operating gas mixtures are described. Particular attention paid to tube performance in high radiation conditions and its operational stability.
Measurements of the kinematic distributions $J/ψ$ mesons produced in $p-$C, $p-$Ti and $p-$W collisions at $\sqrt{s}=41.6 \mathrm{GeV}$ Feynman-$x$ region $-0.34 < x_{F} 0.14$ for transverse momentum up to $p_T = 5.4 \mathrm{GeV}/c$ are presented. The $x_F$ $p_T$ dependencies nuclear suppression parameter, $α$, also given. results based on $2.4 \cdot 10^{5}$ both $e^+ e^-$ $μ^{+}μ^{-}$ decay channels. data have been collected by HERA-B experiment HERA proton ring DESY laboratory....
We discuss α-particle velocity-space diagnostic in ITER based on the planned collective Thomson scattering (CTS) and γ-ray spectrometry (GRS) systems as well ASCOT simulations of distribution function. GRS is sensitive to α-particles with energies MeV at all pitches p, CTS for . The remaining velocity space not observed. view plasma (almost) perpendicularly magnetic field. Hence we cannot determine sign pitch distinguish co- counter-going currently diagnostics. Therefore can only infer...
We have searched for Theta+(1540) and Xi(--)(1862) pentaquark candidates in proton-induced reactions on C, Ti, W targets at midrapidity square root of s = 41.6 GeV. In 2 x 10(8) inelastic events we find no evidence narrow (sigma approximately 5 MeV) signals the Theta+ --> pK0(S) Xi(--) Xi- pi- channels; our 95% C.L. upper limits (UL) inclusive production cross section times branching fraction B dsigma/dy/(y 0) are (4-16) mub/N a mass between 1521 1555 MeV, 2.5 Xi(--). The UL yield ratio...
The ATLAS TRT end-cap is a tracking drift chamber using 245,760 individual tubular tubes. It part of the tracker which consist barrel and two end-caps. end-caps cover forward backward pseudo-rapidity region 1.0 < |η| 2.0, while central η 1.0. system provides combination continuous with many measurements in tubes (or straws) electron identification based on transition radiation from fibers or foils interleaved between straws themselves. Along other sub-system, namely Pixel detector Semi...
A binary format with lists of particle state information, for interchanging particles between various Monte Carlo simulation applications, is presented. Portable C code file manipulation made available to the scientific community, along converters and plugins several popular packages. Program Title: MCPL Files doi: http://dx.doi.org/10.17632/cby92vsv5g.1 Licensing provisions: CC0 core MCPL, see LICENSE details. Programming language: C++ External routines/libraries: Geant4, MCNP, McStas,...
The European Spallation Source being constructed in Lund, Sweden will provide the user community with a neutron source of unprecedented brightness. By 2025, suite 15 instruments be served by high-brightness moderator system placed above spallation target. ESS infrastructure, consisting proton linac, target station, and instrument halls, allows for implementation second below We propose to develop high-intensity able (1) deliver larger total cold flux, (2) high intensities at longer...
A measurement of the ratio Rχc=(χc→J/ψ+γ)/J/ψ in pC, pTi, and pW interactions at 920 GeV/c (√s=41.6 GeV) Feynman-x range −0.35<xJ/ψF<0.15 is presented. Both μ+μ− e+e− J/ψ decay channels are observed with an overall statistics about 15 000 χc events, which by far largest available sample pA collisions. The result Rχc=0.188±0.013st+0.024−0.022sys averaged over different materials, when no polarizations considered. χc1 to χc2 production R12=Rχc1/Rχc2 measured be 1.02±0.40, leading a cross...
A study of the angular distributions leptons from decays J/psi's produced in p-C and p-W collisions at sqrt{s}=41.6 GeV has been performed Feynman-x region -0.34 < x_F 0.14 for transverse momentum up to 5.4 GeV/c. The data were collected by HERA-B experiment HERA proton ring DESY laboratory. results, based on a clean selection 2.3 x 10^5 reconstructed both e^+ e^- mu^+ mu^- decay channels, indicate that are with longitudinal polarization. magnitude effect is maximal low p_T. For p_T >1...
Abstract The NNBAR experiment for the European Spallation Source will search free neutrons converting to antineutrons with a sensitivity improvement of three orders magnitude compared last such search. This paper describes progress towards conceptual design report NNBAR. moderator, neutron reflector, beamline, shielding and annihilation detector is reported. simulations used form part model which be optimisation quantification its sensitivity.
A key aim of the HighNESS project for European Spallation Source is to enable cutting-edge particle physics experiments. This volume presents a conceptual design report NNBAR experiment. would exploit new cold lower moderator make first search in over thirty years free neutrons converting anti-neutrons. The observation such baryon-number-violating signature be fundamental significance and tackle open questions modern physics, including origin matter-antimatter asymmetry. shows beamline,...
The ATLAS inner detector consists of three sub-systems: the pixel spanning radius range 4cm-20cm, semiconductor tracker at radii from 30 to 52 cm, and transition radiation (TRT), tracking 56 107 cm. TRT provides a combination continuous with many projective measurements based on individual drift tubes (or straws) electron identification fibres or foils interleaved between straws themselves. This paper describes off electronics for as well portion data acquisition (DAQ) system.
The Collective Thomson Scattering (CTS) diagnostic will be a primary for measuring the dynamics of confined fusion born alpha particles in ITER and only alphas below 1.7 MeV [1]. probe beam CTS comes from 60 GHz 1 MW gyrotron operated ~100 Hz modulation sequence. In plasma, probing scattered off fluctuations primarily due to ions. Seven fixed receiver mirrors pick up radiation (the signal) seven measurement volumes along covering cross section plasma. is planned provide temporal resolution...