B. Bergmann
A5101410556- 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
- Radiation Detection and Scintillator Technologies
- Neutrino Physics Research
- Cosmology and Gravitation Theories
- Nuclear Physics and Applications
- CCD and CMOS Imaging Sensors
- Radiation Effects in Electronics
- Distributed and Parallel Computing Systems
- Atomic and Subatomic Physics Research
- Medical Imaging Techniques and Applications
- Radiation Therapy and Dosimetry
- Astrophysics and Cosmic Phenomena
- Atomic and Molecular Physics
- Astro and Planetary Science
- Particle Accelerators and Free-Electron Lasers
- Cold Atom Physics and Bose-Einstein Condensates
- Ion-surface interactions and analysis
- Advanced Data Storage Technologies
- Solar and Space Plasma Dynamics
- Big Data Technologies and Applications
Czech Technical University in Prague
2016-2025
Université Savoie Mont Blanc
2019-2024
Institut National de Physique Nucléaire et de Physique des Particules
2021-2024
First Technical University
2024
Atlas Scientific (United States)
2024
A. Alikhanyan National Laboratory
2024
SR Research (Canada)
2024
Federación Española de Enfermedades Raras
2024
Czech Academy of Sciences, Institute of Atmospheric Physics
2024
Centre National de la Recherche Scientifique
2019-2023
Hybrid pixel detectors have a well-established array of applications ranging from particle physics to life sciences. The small dimensions Timepix3 as well its relatively low energetic expenses make it an intriguing option additionally for ion detection in nuclear experiments, reveals simultaneously precise temporal, spatial and properties recorded events reactions. Currently, limiting factor is the electronics behavior at high input charge resulting improper energy determination incident...
We report on laser cooling of a large fraction positronium (Ps) in free flight by strongly saturating the 1^{3}S-2^{3}P transition with broadband, long-pulsed 243 nm alexandrite laser. The ground state Ps cloud is produced magnetic and electric field-free environment. observe two different laser-induced effects. first effect an increase number atoms after time has spent long-lived 2^{3}P states. second one-dimensional Doppler Ps, reducing cloud's temperature from 380(20) to 170(20) K....
MoEDAL is designed to identify new physics in the form of long-lived highly ionizing particles produced high-energy LHC collisions. Its arrays plastic nuclear-track detectors and aluminium trapping volumes provide two independent passive detection techniques. We present here results a first search for magnetic monopole production 13 TeV proton-proton collisions using technique, extending previous publication with 8 data during Run 1. A total 222 kg detector samples was exposed forward region...
Timepix3 detectors are the latest generation of hybrid active pixel Medipix/Timepix family. Such consist an sensor layer which is connected to readout ASIC (application specific integrated circuit), segmenting detector into a square matrix 256 $$\times $$ pixels (pixel pitch 55 $$\upmu m). Particles interacting in material create charge carriers, drift towards pixelated electrode, where they collected. In each pixel, time interaction (time resolution 1.56 ns) and amount created carriers...
MoEDAL is designed to identify new physics in the form of stable or pseudostable highly ionizing particles produced high-energy Large Hadron Collider (LHC) collisions. Here we update our previous search for magnetic monopoles Run 2 using full trapping detector with almost four times more material and twice integrated luminosity. For first time at LHC, data were interpreted terms photon-fusion monopole direct production addition Drell-Yan-like mechanism. The detector, consisting 794 kg...
Abstract Fast, incremental evolution of physics instrumentation raises the question efficient software abstraction and transferability algorithms across similar technologies. This contribution aims to provide an answer by introducing Track Lab, a modern data acquisition program focusing on extensibility high performance. Shipping with documented API more than 20 standard modules, Lab allows complex analysis pipelines be constructed from simple, reusable building blocks. Thanks multi-threaded...
We update our previous search for trapped magnetic monopoles in LHC Run 2 using nearly six times more integrated luminosity and including additional models the interpretation of data. The MoEDAL forward trapping detector, comprising 222 kg aluminium samples, was exposed to 2.11 fb−1 13 TeV proton–proton collisions near LHCb interaction point analysed by searching induced persistent currents after passage through a superconducting magnetometer. Magnetic charges equal Dirac charge or above are...
Abstract The miniaturized radiation camera MiniPIX TPX3 is designed for detailed and wide-range measurements of mixed-radiation fields present in many applications such as radiotherapy space outer orbit. highly integrated instrumentation utilizes a single connector control readout flexible quick deployment. device features an option to process the registered data on same with limited resolution basic particle-type resolving power. A novel processing technique exploits detector high...
Abstract The latest generation of Timepix series hybrid pixel detectors enhance particle tracking with high spatial and temporal resolution. However, their hit-rate capability poses challenges for data processing, particularly in multidetector configurations or systems like Timepix4. Storing processing each hit offline is inefficient such throughput. To efficiently group partly unsorted hits into clusters event characterization, we explore parallel approaches online clustering to enable...
Abstract The present work demonstrates the usage of a Timepix3 with 1 mm thick silicon sensor as scattering polarimeter simultaneous Compton-camera imaging. For this purpose, laboratory experiments were designed where detector was placed at different angles respect to plastic target that is irradiated X-rays from Hamamatsu microfocus tube (tube voltage 75 kV, current 60 µA). Photons scattered in 90 ∘ are almost 100 % linearly polarized. Measurements an energy range 32.5–67.5 keV showed...
This search for magnetic monopoles (MMs) and high electric charge objects (HECOs) with spins 0, 1/2, 1, uses the first time full MoEDAL detector, exposed to 6.46 fb^{-1} proton-proton collisions at 13 TeV. The results are interpreted in terms of Drell-Yan photon-fusion pair production. Mass limits on direct production MMs up 10 Dirac charges HECOs range 10e 400e, were achieved. placed MM HECO currently strongest world. is only LHC experiment capable being directly calibrated highly ionizing...
Antihydrogen formation at AEgIS CERN leverages charge exchange between Rydberg positronium (Ps*) and antiprotons, with cross-sections scaling the Ps principal quantum number $n^4$ inversely relative velocity $𝑣^{−2}$. However, motional Stark effect mismatch antiprotons impose stringent constraints, limiting efficiency. Advances in transmission converters mitigate self-ionization losses improve alignment, promising a significant boost antihydrogen yield. This work evaluates cross-sections,...
Abstract We present the study of response a Timepix2 detector (256 × 256 pixels, pixel pitch 55 µm) with 500 µm thick silicon sensor in laboratory measurements α sources, charged particle beams relativistic ion fragments at Super-Proton-Synchrotron CERN and short-ranged heavy Heavy Ion Facility UCLouvain Belgium: 22 Ne, 53 Cr 103 Rh 238, 505 957 MeV, respectively. The was used adaptive gain mode, calibrated using previously developed methodology protons energies range from keV to 2 MeV...
This work presents a novel readout system for the Timepix3-based detector, designed specifically large-scale facilities, such as particle accelerators. The authors begin by outlining challenges associated with utilizing Timepix3 detector over long distances. paper proposes solution to these and describes its practical implementation. Beam test results are provided demonstrate system’s performance, particular focus on time-of-flight measurements. Additionally, address complexities of...
The experimental demonstration of positronium laser cooling with stationary broadband pulses negative detuning is briefly described. Considerations on the limits current experiment and possible future developments follow. In particular, benefit positron remoderation, use a magnetic field, polarization, pulse shaping, coherent deceleration are shortly discussed.
Primary goal of the AEḡIS experiment is to precisely measure free fall antihydrogen within Earth’s gravitational field. To this end, cold (≈50 K) will traverse a two-grid moiré deflectometer before annihilating onto position-sensitive detector, which shall determine vertical position annihilation vertex relative grids with micrometric accuracy. Here, we introduce vertexing detector based on modified mobile camera sensor and experimentally demonstrate that it can antiproton annihilations...
The Timepix3—the latest generation of hybrid particle pixel detectors Medipix family—yields a lot new possibilities, i.e. high hit-rate, time resolution 1.56 ns, event data-driven readout mode, and the capability measuring Time-over-Threshold (ToT - energy) Time-of-Arrival (ToA) simultaneously. This paper introduces newly developed device for Timepix3, called "Katherine", featuring Gigabit Ethernet interface. primary benefit Katherine is operation Timepix3 at long distance (up to 100 m) from...
The MoEDAL trapping detector, consists of approximately 800 kg aluminium volumes. It was exposed during Run-2 the LHC program to 6.46 fb^-1 13 TeV proton-proton collisions at LHCb interaction point. Evidence for dyons (particles with electric and magnetic charge) captured in detector sought by passing volumes comprising through a SQUID magnetometer. presence trapped dyon would be signalled persistent current induced On basis Drell-Yan production model, we exclude charge ranging up 5 Dirac...
Abstract A powerful and robust control system is a crucial, often neglected, pillar of any modern, complex physics experiment that requires the management multitude different devices their precise time synchronisation. The AEḡIS collaboration presents CIRCUS, novel, autonomous optimised for time-critical experiments such as those at CERN’s Antiproton Decelerator and, more broadly, in atomic quantum research. Its setup based on Sinara/ARTIQ TALOS, integrating ALPACA analysis pipeline, last...
We present the characterization of a highly segmented “large area” hybrid pixel detector (Timepix3, 512 × pixels, pitch 55 µm) for application in space experiments. demonstrate that nominal power consumption 6 W can be reduced by changing settings Timepix3 analog front-end and reducing matrix clock frequency (from 40 MHz to 5 MHz) 2 (in best case). then comprehensive study impact these changes on particle tracking performance, energy resolution time stamping precision utilizing data measured...
In space application, hybrid pixel detectors of the Timepix family have been considered mainly for measurement radiation levels and dosimetry in low earth orbits. Using example Space Application Radiation Monitor (SATRAM), we demonstrate unique capabilities Timepix-based miniaturized particle separation. We present incident proton energy spectrum geographic location SAA obtained by using Bayesian unfolding stopping power measured with a single-layer Timepix. assess stability resiliency...