A5106695772- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Photocathodes and Microchannel Plates
- Atomic and Subatomic Physics Research
- Particle physics theoretical and experimental studies
- CCD and CMOS Imaging Sensors
- Muon and positron interactions and applications
- Dark Matter and Cosmic Phenomena
- Plasma Diagnostics and Applications
- Neutrino Physics Research
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Radiation Effects in Electronics
- Cosmology and Gravitation Theories
- Astrophysics and Cosmic Phenomena
- Superconducting and THz Device Technology
Institut de Recherche sur les Lois Fondamentales de l'Univers
2018-2025
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2018-2025
CEA Paris-Saclay
2018-2025
Université Paris-Saclay
2019-2024
European Organization for Nuclear Research
2018-2022
Deutsches Elektronen-Synchrotron DESY
2022
Ruhr University Bochum
2019-2022
Département d'Informatique
2020
Abstract PICOSEC Micromegas (MM) is a precise timing gaseous detector based on Cherenkov radiator coupled with semi-transparent photocathode and an MM amplifying structure. The concept was successfully demonstrated through single-channel prototype, achieving sub-25 ps time resolution Minimum Ionizing Particles (MIPs). A series of studies followed, aimed at developing robust, large-area, scalable detectors high resolution, complemented by specialized fast-response readout electronics. This...
The prospect of pileup induced backgrounds at the High Luminosity LHC (HL-LHC) has stimulated intense interest in developing technologies for charged particle detection with accurate timing high rates. required accuracy follows directly from nominal interaction distribution within a bunch crossing ($\sigma_z\sim5$ cm, $\sigma_t\sim170$ ps). A time resolution order 20-30 ps would lead to significant reduction these backgrounds. With this goal, we present new concept called PICOSEC, which is...
Abstract A finite axion–nucleon coupling, nearly unavoidable for QCD axions, leads to the production of axions via thermal excitation and subsequent de-excitation $$^{57}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow /> <mml:mn>57</mml:mn> </mml:msup> </mml:math> Fe isotopes in sun. We revise solar bound on this flux adopting up date emission rate, investigate sensitivity proposed International Axion Observatory IAXO its intermediate stage BabyIAXO detect...
Abstract The PICOSEC Micromegas (MM) detector is a precise timing gaseous consisting of Cherenkov radiator combined with photocathode and MM amplifying structure. A 100-channel prototype 10 × cm 2 active area equipped Cesium Iodide (CsI) demonstrated time resolution below σ = 18 ps. objective this work to improve the robustness aspects, i.e. integration resistive carbon-based photocathodes, while maintaining good resolution. prototypes have been tested in laboratory conditions successfully...
Abstract The PICOSEC Micromegas (MM) detector is a precise timing gaseous based on MM operating in two-stage amplification mode and Cherenkov radiator. Prototypes equipped with cesium iodide (CsI) photocathodes have shown promising time resolutions as 24 picoseconds (ps) for Minimum Ionizing Particles. However, due to the high hygroscopicity susceptibility ion bombardment of CsI photocathodes, alternative photocathode materials are needed improve robustness MM. Diamond-like Carbon (DLC) film...
This paper summarises a comprehensive Monte Carlo simulation study for precision resonance energy scan measurements. Apart from the proof of principle natural width and line shape measurements very narrow resonances with PANDA, achievable sensitivities are quantified concrete example charmonium-like X(3872) state discussed to be exotic, larger parameter space various assumed signal cross-sections, input widths luminosity combinations. PANDA is only experiment that will able perform scans...
The antiproton experiment PANDA at FAIR is designed to bring hadron physics a new level in terms of scope, precision and accuracy. In this work, its unique capability for studies hyperons outlined. We discuss ground-state as diagnostic tools study non-perturbative aspects the strong interaction, fundamental symmetries. New simulation have been carried out two benchmark hyperon-antihyperon production channels: $\bar{p}p \to \bar{\Lambda}\Lambda$ \bar{\Xi}^+\Xi^-$. results, presented detail...
The spatial dependence of the timing performance R3809U-50 Micro-Channel-Plate PMT (MCP-PMT) by Hamamatsu was studied in high energy muon beams. Particle position information is provided a GEM tracker telescope, while measured relative to second MCP-PMT, identical construction. In inner part circular active area (radius r<5.5 mm) time resolution two MCP-PMTs combined better than 10 ps. signal amplitude decreases outer region due less light reaching photocathode, resulting worse resolution....
The Any Light Particle Search II (ALPS II) experiment is a Light-Shining-through-a-Wall under construction at DESY, Hamburg. Its goal to probe the existence of Axion Like Particles (ALPs), possible candidate for dark matter. expected small rate reconverted photons requires sensor capable measuring low-energetic (1.165 eV) with high efficiency and low count rate. A first science run in 2022 will be based on heterodyne detection scheme. For second run, Transition Edge Sensor (TES) system...
Micromegas (MICRO-MEsh GAseous Structure) detectors have found common use in different applications since their development 1996 by the group of I. Giomataris and G. Charpak. In this review article, we present implementations sub-detectors physics experiments highlight current state for innovative detection concepts with Micromegas.
Abstract The PICOSEC Micromegas precise timing detector is based on a Cherenkov radiator coupled to photocathode operating in semi-transparent mode and amplification structure. first proof of concept single-channel prototype was able achieve time resolution below 25 ps. One the crucial aspects development gaseous detectors applicable high-energy physics experiments modular design that enables large area coverage. 19-channel multi-pad with an active approximately 10 cm 2 suffered from...
Detectors with a time resolution of few tens picoseconds and long-term durability in high particle fluxes are necessary for an accurate vertex separation future physics experiments. The PICOSEC-Micromegas detector concept is Micro-Pattern Gaseous Detector (MPGD) based solution addressing this particular challenge. It on Micromegas coupled to Cherenkov radiator photocathode. Primary electrons from the incident particles generated photocathode fluctuations due different primary ionisation...
Abstract Detectors with a time resolution of 20-30 ps and reliable performance in high particles flux environments are necessary for an accurate vertex separation future HEP experiments. The PICOSEC-Micromegas detector concept is Micro-Pattern Gaseous Detector (MPGD) based solution addressing this particular challenge. on Micromegas coupled to Cherenkov radiator photocathode. In concept, all primary electrons initiated the photocathode jitter fluctuations reduced. Different resistive anode...
The PICOSEC Micromegas detector is a precise timing gaseous based on Cherenkov radiator coupled to semi-transparent photocathode and amplifying structure. First single-pad prototypes demonstrated time resolution below σ= 25 ps, however, make the concept appropriate physics applications, several developments are required. objective of this work was achieve an equivalent for 10 × cm2 area detector. prototype designed, produced tested in laboratory successfully operated with 80 GeV/c muon beam....
Abstract The PICOSEC-Micromegas detector was developed for precise timing of the arrival charged particles with a resolution bellow 30 ps. This contribution, after brief introduction presents results concerning response to single photoelectrons, estimation photoelectron yield various photocathode types, as well its performance time test beam muons. In addition, based on detailed simulation studies and stochastic model understanding are presented. Finally, related development large scale...