B. Bergmann
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View article: Comprehensive Study of the Lunar Energetic Particle Environment with LunPAN
Comprehensive Study of the Lunar Energetic Particle Environment with LunPAN Open
LunPAN (Lunar Particle Analyzer Network) is a three-year mission proposal designed to comprehensively map the particle spectra in the lunar radiation field. It aims to provide precise measurements of Galactic Cosmic Rays (GCR), Solar Energ…
View article: Evaluation of Timepix3 as a luminosity detector at LHC during 2018 pp collisions at $$\sqrt{s}=13$$ TeV
Evaluation of Timepix3 as a luminosity detector at LHC during 2018 pp collisions at $$\sqrt{s}=13$$ TeV Open
Four Timepix3 detectors were installed in the ATLAS experiment at different positions to study their capabilities to measure luminosity during pp -collisions at $$\sqrt{s} = 13$$ TeV in 2018. While the detectors were operated indepen…
View article: Precision measurement of the half-lifes of the excited nuclear states in Fe-57
Precision measurement of the half-lifes of the excited nuclear states in Fe-57 Open
The half-lifes of the nuclear isomeric states in 57 Fe at 14.4 keV and 136.5 keV above the ground state are measured with unprecedented precision using hybrid pixel detectors based on Timepix3 technology. These detectors enable dead-time-f…
View article: Positron-Positronium Converters in Reflection and Transmission Geometry for Gravitational Experiments with Antihydrogen using Moiré Deflectometry
Positron-Positronium Converters in Reflection and Transmission Geometry for Gravitational Experiments with Antihydrogen using Moiré Deflectometry Open
In the context of the Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy (AEgIS) located at CERN, positron-positronium converters with a high positron-positronium conversion efficiency have been designed in both reflection and …
View article: Katherine Generation 2: advanced readout system for Timepix3 detectors
Katherine Generation 2: advanced readout system for Timepix3 detectors Open
This paper presents Katherine Generation 2 (Gen2), an advanced readout system designed for Timepix3 pixel detector. The new system addresses limitations of the original Katherine (Gen1) design, particularly in terms of data throughput and …
View article: Laser Cooling Positronium with Broadband Laser Pulses
Laser Cooling Positronium with Broadband Laser Pulses Open
The first successful demonstration of broadband laser cooling of positronium (Ps) atoms, obtained within the AEgIS experiment at CERN, is presented here. By employing a custom-designed pulsed alexandrite laser system at 243 nm featuring lo…
View article: Extending the time-over-threshold calibration of Timepix3 for spatial-resolved ion spectroscopy
Extending the time-over-threshold calibration of Timepix3 for spatial-resolved ion spectroscopy Open
Hybrid pixel detectors have a well-established array of applications ranging from particle physics to life sciences. The small dimensions of Timepix3 as well as its relatively low energetic expenses make it an intriguing option additionall…
View article: Real-time antiproton annihilation vertexing with submicrometer resolution
Real-time antiproton annihilation vertexing with submicrometer resolution Open
Primary goal of the AEḡIS experiment is to precisely measure the free fall of antihydrogen within Earth’s gravitational field. To this end, cold (≈50 K) antihydrogen will traverse a two-grid moiré deflectometer before annihilating onto a p…
View article: Positronium Doppler laser cooling: results and perspectives
Positronium Doppler laser cooling: results and perspectives Open
The experimental demonstration of positronium laser cooling with stationary broadband laser pulses with negative detuning is briefly described. Considerations on the limits of the current experiment and possible future developments follow.…
View article: Experimental evidence of production of directional muons from a laser-wakefield accelerator
Experimental evidence of production of directional muons from a laser-wakefield accelerator Open
We report on experimental evidence of the generation of directional muons from a laser-wakefield accelerator driven by a PW-class laser. The muons were generated following the interaction of a GeV-scale high-charge electron beam with a 2cm…
View article: Enhanced Readout System for Timepix3-Based Detectors in Large-Scale Scientific Facilities
Enhanced Readout System for Timepix3-Based Detectors in Large-Scale Scientific Facilities Open
This work presents a novel readout system for the Timepix3-based detector, designed specifically for large-scale facilities, such as particle accelerators. The authors begin by outlining the challenges associated with utilizing the Timepix…
View article: The AEgIS Experiment: Progress and Future Outlook
The AEgIS Experiment: Progress and Future Outlook Open
The AEgIS experiment at CERN is pioneering measurements of gravity, spectroscopy, and interferometry using pulsed antimatter atomic sources. This work provides an overview of the AEgIS experimental setup and highlights recent advancements …
View article: Calibrating p-i-n Diodes for Displacement Damage Monitoring in a Space Radiation Environment
Calibrating p-i-n Diodes for Displacement Damage Monitoring in a Space Radiation Environment Open
This work investigates the response of specially developed silicon p-i-n diodes with a long base as sensors to measure displacement damage dose (DDD) in silicon. Measurements of DDD are based on the forward voltage shift ( ΔVF ) of irradia…
View article: Prospects for forward emitted positronium from nanoporous membranes at AEgIS
Prospects for forward emitted positronium from nanoporous membranes at AEgIS Open
Antihydrogen formation at AEgIS at CERN leverages charge exchange between Rydberg positronium (Ps*) and antiprotons, with cross-sections scaling with the Ps principal quantum number $n^4$ and inversely with relative velocity $𝑣^{−2}$. Howe…
View article: Evaluation of Timepix2 in adaptive gain mode for stopped and penetrating position-sensitive ion spectroscopy
Evaluation of Timepix2 in adaptive gain mode for stopped and penetrating position-sensitive ion spectroscopy Open
We present the study of the response of a Timepix2 detector (256 × 256 pixels, pixel pitch 55 µm) with a 500 µm thick silicon sensor in laboratory measurements with α sources, charged particle beams of relativistic ion fragments at the Sup…
View article: Search for Highly Ionizing Particles in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mi>p</mml:mi></mml:math> Collisions during LHC Run 2 Using the Full MoEDAL Detector
Search for Highly Ionizing Particles in Collisions during LHC Run 2 Using the Full MoEDAL Detector Open
This search for magnetic monopoles (MMs) and high electric charge objects (HECOs) with spins 0, 1/2, and 1, uses for the first time the full MoEDAL detector, exposed to 6.46 fb−1 proton-proton collisions at 13 TeV. The results are interpr…
View article: Evaluation of Timepix3 with a 1 mm thick silicon sensor as a Compton imaging polarimeter in the hard X-ray band
Evaluation of Timepix3 with a 1 mm thick silicon sensor as a Compton imaging polarimeter in the hard X-ray band Open
The present work demonstrates the usage of a Timepix3 with a 1 mm thick silicon sensor as a scattering polarimeter with simultaneous Compton-camera imaging. For this purpose, laboratory experiments were designed where the detector was plac…
View article: Extending the time-over-threshold calibration of Timepix3 for spatial-resolved ion spectroscopy
Extending the time-over-threshold calibration of Timepix3 for spatial-resolved ion spectroscopy Open
Hybrid pixel detectors have a well-established array of applications ranging from particle physics to life sciences. The small dimensions of Timepix3 as well as its relatively low energetic expenses make it an intriguing option additionall…
View article: Parallel CPU- and GPU-based connected component algorithms for event building for hybrid pixel detectors
Parallel CPU- and GPU-based connected component algorithms for event building for hybrid pixel detectors Open
The latest generation of Timepix series hybrid pixel detectors enhance particle tracking with high spatial and temporal resolution. However, their high hit-rate capability poses challenges for data processing, particularly in multidetector…
View article: Experimental analysis of Schottky-barrier 4H-SiC-detector-response to fast neutrons: Comparison with Si and diamond detectors
Experimental analysis of Schottky-barrier 4H-SiC-detector-response to fast neutrons: Comparison with Si and diamond detectors Open
The response of 4H-SiC detectors to 17 MeV neutrons was experimentally analysed using detectors composed solely of carbon or silicon. The detectors were tested using three different neutron energies (14.5 MeV, 15 MeV and 17 MeV) at two dif…
View article: Parallel CPU- and GPU-based connected component algorithms for event building for hybrid pixel detectors
Parallel CPU- and GPU-based connected component algorithms for event building for hybrid pixel detectors Open
The latest generation of Timepix series hybrid pixel detectors enhance particle tracking with high spatial and temporal resolution. However, their high hit-rate capability poses challenges for data processing, particularly in multidetector…
View article: Erratum: First Search for Dyons with the Full MoEDAL Trapping Detector in 13 TeV <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mi>p</mml:mi></mml:math> Collisions [Phys. Rev. Lett. <b>126</b>, 071801 (2021)]
Erratum: First Search for Dyons with the Full MoEDAL Trapping Detector in 13 TeV Collisions [Phys. Rev. Lett. <b>126</b>, 071801 (2021)] Open
This corrects the article DOI: 10.1103/PhysRevLett.126.071801.
View article: The design and construction of the Chips water Cherenkov neutrino detector
The design and construction of the Chips water Cherenkov neutrino detector Open
CHIPS (CHerenkov detectors In mine PitS) was a prototype large-scale water Cherenkov detector located in northern Minnesota. The main aim of the R&D project was to demonstrate that construction costs of neutrino oscillation detectors could…
View article: Scalable DAQ system operating the CHIPS-5 neutrino detector
Scalable DAQ system operating the CHIPS-5 neutrino detector Open
The CHIPS R&D project focuses on development of low-cost water Cherenkov neutrino detectors through novel design strategies and resourceful engineering. This work presents an end-to-end DAQ solution intended for a recent 5 kt CHIPS prototy…
View article: MoEDAL Search in the CMS Beam Pipe for Magnetic Monopoles Produced via the Schwinger Effect
MoEDAL Search in the CMS Beam Pipe for Magnetic Monopoles Produced via the Schwinger Effect Open
We report on a search for magnetic monopoles (MMs) produced in ultraperipheral Pb-Pb collisions during Run 1 of the LHC. The beam pipe surrounding the interaction region of the CMS experiment was exposed to 184.07 μb−1 of Pb-Pb collisions…
View article: TALOS (Total Automation of LabVIEW Operations for Science): A framework for autonomous control systems for complex experiments
TALOS (Total Automation of LabVIEW Operations for Science): A framework for autonomous control systems for complex experiments Open
Modern physics experiments are frequently very complex, relying on multiple simultaneous events to happen in order to obtain the desired result. The experiment control system plays a central role in orchestrating the measurement setup: How…
View article: Real-time antiproton annihilation vertexing with sub-micron resolution
Real-time antiproton annihilation vertexing with sub-micron resolution Open
The primary goal of the AEgIS experiment is to precisely measure the free fall of antihydrogen within Earth's gravitational field. To this end, a cold ~50K antihydrogen beam has to pass through two grids forming a moiré deflectometer befor…
View article: Single-layer Compton camera based on a 1 mm thick pixelated CDTE detectors
Single-layer Compton camera based on a 1 mm thick pixelated CDTE detectors Open
Compton camera is a novel γ-camera paradigm that relies upon the kinematics of Compton scattering for image reconstruction. A Conventional Compton camera uses two layers of sensors - the Absorber and the Scatterer. This work reports the pr…
View article: Results and Perspectives of Timepix Detectors in Space—From Radiation Monitoring in Low Earth Orbit to Astroparticle Physics
Results and Perspectives of Timepix Detectors in Space—From Radiation Monitoring in Low Earth Orbit to Astroparticle Physics Open
In space application, hybrid pixel detectors of the Timepix family have been considered mainly for the measurement of radiation levels and dosimetry in low earth orbits. Using the example of the Space Application of Timepix Radiation Monit…
View article: MoEDAL search in the CMS beam pipe for magnetic monopoles produced via the Schwinger effect
MoEDAL search in the CMS beam pipe for magnetic monopoles produced via the Schwinger effect Open
We report on a search for magnetic monopoles (MMs) produced in ultraperipheral Pb--Pb collisions during Run-1 of the LHC. The beam pipe surrounding the interaction region of the CMS experiment was exposed to 184.07 \textmu b$^{-1}$ of Pb--…