A5064770529- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Nuclear Physics and Applications
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Medical Imaging Techniques and Applications
- Atomic and Subatomic Physics Research
- Neutrino Physics Research
- Particle Accelerators and Free-Electron Lasers
- Radiation Therapy and Dosimetry
- Black Holes and Theoretical Physics
- Nuclear reactor physics and engineering
- Astrophysics and Cosmic Phenomena
- Superconducting Materials and Applications
- CCD and CMOS Imaging Sensors
- Semiconductor materials and devices
- Advancements in Photolithography Techniques
- Advanced Data Storage Technologies
- Advanced X-ray Imaging Techniques
- Radioactivity and Radon Measurements
- Electron and X-Ray Spectroscopy Techniques
Lund University
2016-2024
Stockholm University
2023
University of Tennessee at Knoxville
2023
European Spallation Source
2016-2021
Deutsches Elektronen-Synchrotron DESY
2009-2020
Forschungszentrum Jülich
2020
Institute of High Energy Physics
2012-2017
Institute of Nuclear Physics
2017
National Space Agency
2014
A. Alikhanyan National Laboratory
2014
Test beam measurements at the test facilities of DESY have been conducted to characterise performance EUDET-type telescopes originally developed within EUDET project. The are equipped with six sensor planes using MIMOSA 26 monolithic active pixel devices. A programmable Trigger Logic Unit provides trigger logic and time stamp information on particle passage. Both data acquisition framework offline reconstruction software packages available. User devices easily integrable into via predefined...
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...
Imaging experiments at the European X-ray Free Electron Laser (XFEL) require silicon pixel sensors with extraordinary performance specifications: doses of up to 1 GGy 12 keV photons, 105 photons per 200 µm × arriving within less than 100 fs, and a time interval between XFEL pulses 220 ns. To address these challenges, in particular question radiation damage, properties SiO2 layer Si–SiO2 interface, using MOS (metal-oxide-semiconductor) capacitors manufactured on high-resistivity n-type...
Untagged gamma-ray and tagged-neutron yields from 241AmBe 238PuBe mixed-field sources have been measured. Gamma-ray spectroscopy measurements 1 - 5 MeV were performed in an open environment using a CeBr3 detector the same experimental conditions for both sources. The shapes of distributions are very similar agree well with previous data. Tagged-neutron 2 6 shielded NE-213 liquid-scintillator neutrons YAP(Ce) to tag 4.44 gamma-rays associated de-excitation first excited state 12C. Again, used...
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.
Neutron beam monitors with a wide range of efficiencies, low $\ensuremath{\gamma}$ sensitivity, and high time space resolution are required in neutron experiments to continuously diagnose the delivered beam. In this work, commercially available have been characterized using R2D2 beamline at IFE (Norway) Be-based source. For sensitivity measurements different sources used. The evaluation includes, study their efficiency, attenuation, scattering, $\ensuremath{\gamma}$. work we report results...
The European X-ray Free Electron Laser (XFEL) will deliver 30,000 fully coherent, high brilliance pulses per second each with a duration below 100 fs. This allow the recording of diffraction patterns single complex molecules and study ultra-fast processes. Silicon pixel sensors be used to record images. In 3 years operation exposed doses up 1 GGy 12 keV X-rays. At this energy no bulk damage in silicon is expected. However fixed oxide charges insulating layer covering interface traps at...
The response of a NE-213 liquid-scintillator detector has been measured using tagged neutrons from 2--6 MeV originating an Am/Be neutron source. energies were determined the time-of-flight technique. Pulse-shape discrimination was employed to discern between gamma-rays and neutrons. behavior both fast (35 ns) combined slow (475 components scintillation-light pulses studied. Three different prescriptions used relate maximum energy-transfer edges corresponding recoil-proton yields, results...
A beam telescope based on CMOS pixel sensors was developed within the EUDET project offering high track pointing resolution (σ 2μm).The consists of six sensor ∼ planes (Mimosa26) with a pitch 18.4 m and thickness 50 m.The excellent resolution, readout rate DAQ integration capabilities made primary test-beam tool for many groups including several CERN experiments.Within European detector infrastructure AIDA is being further extended in terms cooling powering infrastructure, read-out speed,...
A high resolution (σ ≈ 2 µm) beam telescope based on monolithic active pixel sensors was developed within the EUDET collaboration.It has become primary in-beam tool for many groups including several CERN experiments, largely due to its precise spatial resolution, reliable operation and DAQ integration capabilities.For deliver this excellent performance, two software packages play a central role: EUDAQ, multi-platform data acquisition system that allows easy of device-under-test, EUTelescope,...
Abstract The Applied Nuclear Physics Group at Lund University has constructed a CANS (Compact Accelerator-driven Neutron Source). is based around 3 MV, single-ended, Pelletron accelerator, which used to impinge 2.8 MeV deuterium beam into beryllium target. anticipated neutron production will be on the order of 10 n/s in 4π sr, with future upgrades expected increase 11 n/s. energy up 9 peak emission ∼5 MeV. Shielding and moderation provided by large water tank surrounding target, exit ports...
Over the last decades, field of thermal neutron detection has overwhelmingly employed He-3-based technologies. The He-3 crisis together with forthcoming establishment European Spallation Source have necessitated development new technologies for detection. Today, several promising He-3-free candidates are under detailed study and need to be validated. This validation process is in general long expensive. detector prototypes using neutron-emitting radioactive sources a cost-effective solution,...
New high-flux and high-brilliance neutron sources demand a higher count-rate capability in detectors. In order to achieve that goal, the Solid-State Neutron Detector (SoNDe) project is developing scintillation-based detector. It will be capable of fully exploiting available flux at small-angle scattering (SANS) instruments high brilliance sources, such as SKADI European Spallation Source (ESS). The read-out scintillator based on pixelized multi-anode PMT (MaPMT), where each pixel treated...
Coincidence and time-of-flight measurement techniques are employed to tag fission neutrons emitted from a 252Cf source sealed on one side with very thin layer of Au. The is positioned within gaseous 4He scintillator detector. Together alpha particles, both light heavy fragments pass through the Au detected. enable corresponding neutrons, which detected in NE-213 liquid-scintillator detector, be tagged. resulting continuous polychromatic beam tagged has an energy dependence that agrees...
EUTelescope is a modular, comprehensive software framework for the reconstruction of particle trajectories recorded with beam telescopes. Its modularity allows flexible usage processors each fulfilling separate tasks chain such as clustering, alignment and track fitting. %The directed via XML steering files. The facilitates any position sensitive device both telescope sensors well under test supports wide range geometric arrangements sensors. In this work, functionality released in v2.2 its...
EUDAQ is a generic data acquisition software developed for use in conjunction with common beam telescopes at charged particle lines. Providing high-precision reference tracks performance studies of new sensors, are essential the research and development towards future detectors high-energy physics. As time highly limited resource, has been designed reliability ease-of-use mind. It enables flexible integration different independent devices under test via their specific systems into top-level...
The NNBAR experiment for the European Spallation Source will search free neutrons converting to antineutrons with an expected sensitivity improvement of three orders magnitude compared last such search. This paper describes both simulations a key component experiment, neutron optical reflector and gains in sensitivity.
The European XFEL under construction in Hamburg will provide fully coherent, 100 fs long X-ray pulses, with 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">12</sup> photons at 12 keV. high intensity per pulse allow recording diffraction patterns of single particles or small crystals a shot. As consequence the 2D detectors have to cope large dynamic range images (one xmlns:xlink="http://www.w3.org/1999/xlink">4</sup> photons/pixel). An...
A high resolution (σ ~ 2 μm) beam telescope based on monolithic active pixel sensors (MAPS) was developed within the EUDET collaboration. The consists of six sensor planes using Mimosa26 MAPS with a pitch 18.4 μm and thinned down to 50 μm. excellent resolution, readout rate DAQ integration capabilities made primary test tool for many groups including several CERN experiments. Within new European detector infrastructure project AIDA will be further extended in terms cooling infrastructure,...
A light-yield calibration of an NE 213A organic liquid scintillator detector has been performed using both monoenergetic and polyenergetic gamma-ray sources. Scintillation light was detected in a photomultiplier tube, the corresponding pulses were subjected to waveform digitization on event-by-event basis. The resulting Compton edges have analyzed Geant4 simulation which models interactions ionizing radiation as well transport scintillation photons. is calibrated also compared...