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PICOSEC-Micromegas Detector, an innovative solution for Lepton Time Tagging
/ Kallitsopoulou, A. (IRFU, Saclay) ; Aleksan, R. (IRFU, Saclay) ; Angelis, Y. (Aristotle U., Thessaloniki) ; Aune, S. (IRFU, Saclay) ; Bortfeldt, J. (Munich U.) ; Brunbauer, F. (CERN) ; Brunoldi, M. (Pavia U. ; INFN, Pavia) ; Chatzianagnostou, E. (Aristotle U., Thessaloniki) ; Datta, J. (SUNY, Stony Brook) ; Desforge, D. (IRFU, Saclay) et al.
The PICOSEC-Micromegas (PICOSEC-MM) detector is a novel gaseous detector designed for precise timing resolution in experimental measurements. It eliminates time jitter from charged particles in ionization gaps by using extreme UV Cherenkov light emitted in a crystal, detected by a Micromegas photodetector with an appropriate photocathode. [...]
arXiv:2411.02532.-
2024-10-16 - 4 p.
Fulltext: PDF;
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Photocathode characterisation for robust PICOSEC Micromegas precise-timing detectors
/ Lisowska, M. (CERN ; IRFU, Saclay) ; Aleksan, R. (IRFU, Saclay) ; Angelis, Y. (Aristotle U., Thessaloniki) ; Aune, S. (IRFU, Saclay) ; Bortfeldt, J. (Munich U.) ; Brunbauer, F. (CERN) ; Brunoldi, M. (Pavia U. ; INFN, Pavia) ; Chatzianagnostou, E. (Aristotle U., Thessaloniki) ; Datta, J. (SUNY, Stony Brook) ; Dehmelt, K. (Jefferson Lab) et al.
The PICOSEC Micromegas detector is a~precise-timing gaseous detector based on a~Cherenkov radiator coupled with a~semi-transparent photocathode and a~Micromegas amplifying structure, targeting a~time resolution of tens of picoseconds for minimum ionising particles. Initial single-pad prototypes have demonstrated a~time resolution below 25 ps, prompting ongoing developments to adapt the concept for High Energy Physics applications, where sub-nanosecond precision is essential for event separation, improved track reconstruction and particle identification. [...]
arXiv:2407.09953.-
2024-12-10 - 9 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1072 (2025) 170151
Fulltext: 2407.09953 - PDF; 1732afb3515e2b936d222cb357afcde6 - PDF; External link: Fermilab Library Server
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A Novel Diamond-like Carbon based photocathode for PICOSEC Micromegas detectors
/ Wang, X. (USTC, Hefei ; Hefei, CUST) ; Aleksan, R. (IRFU, Saclay) ; Angelis, Y. (Aristotle U., Thessaloniki) ; Bortfeldt, J. (LMU Munich (main)) ; Brunbauer, F. (CERN) ; Brunoldi, M. (Pavia U. ; INFN, Pavia) ; Chatzianagnostou, E. (Aristotle U., Thessaloniki) ; Datta, J. (Stony Brook U.) ; Degmelt, K. (Jefferson Lab) ; Fanourakis, G. (Democritos Nucl. Res. Ctr.) et al.
The PICOSEC Micromegas (MM) detector is a precise timing gaseous detector based on a MM detector operating in a two-stage amplification mode and a Cherenkov radiator. Prototypes equipped with cesium iodide (CsI) photocathodes have shown promising time resolutions as precise as 24 picoseconds (ps) for Minimum Ionizing Particles. [...]
arXiv:2406.08712.-
2024-08-12 - 15 p.
- Published in : JINST 19 (2024) P08010
Fulltext: 806956891d4956950d85abdbaee8cf0d - PDF; 2406.08712 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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Single channel PICOSEC Micromegas detector with improved time resolution
/ Utrobicic, A. (Boskovic Inst., Zagreb) ; Aleksan, R. (IRFU, Saclay) ; Angelis, Y. (Aristotle U., Thessaloniki) ; Bortfeldt, J. (Munich U.) ; Brunbauer, F. (CERN) ; Brunoldi, M. (Pavia U. ; INFN, Pavia) ; Chatzianagnostou, E. (Aristotle U., Thessaloniki) ; Datta, J. (SUNY, Stony Brook) ; Dehmelt, K. (Jefferson Lab) ; Fanourakis, G. (American Coll. of Greece) et al.
This paper presents design guidelines and experimental verification of a single-channel PICOSEC Micromegas (MM) detector with an improved time resolution. [...]
arXiv:2406.05657 ; FERMILAB-PUB-24-0499-CMS-V.
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Fermilab Library Server - Fulltext - Fulltext
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Integration of CVD graphene in gaseous electron multipliers for high energy physics experiments
/ Orlandini, G (CERN ; Erlangen - Nuremberg U.) ; Brunbauer, F M (CERN) ; Coletti, C (NEST-INFM ; Italian Inst. Tech., Genoa) ; Convertino, D (NEST-INFM) ; Doser, M (CERN) ; Floethner, K J (CERN ; Bonn U., HISKP) ; Janssens, D (CERN ; Vrije U., Brussels) ; Lisowska, M (CERN ; IRFU, Saclay) ; Mishra, N (NEST-INFM ; Italian Inst. Tech., Genoa) ; Oliveri, E (CERN) et al.
To enhance the performance of micro-patterned gaseous detectors (MPGDs) to meet thechallenging requirements of future high energy physics (HEP) experiments, two-dimensional (2D)materials are attractive candidates to address the back flow of positive ions, which affectsdetector performance by distorting electric field lines. In this context, graphene is promisingto work as selective filter for ion back flow suppression, being transparent to electrons while atthe same time blocking ions. [...]
2023 - 8 p.
- Published in : JINST 18 (2023) C06022
Fulltext: PDF;
In : 8th International symposium on Negative Ions, Beams and Sources (NIBS'22), Padua, Italy, 2 - 7 Oct 2022, pp.C06022
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The XYU-GEM: Ambiguity-free coordinate readout of the Gas Electron Multiplier
/ Flöthner, K J (CERN ; Bonn U., HISKP) ; Janssens, D (CERN ; Brussels U., IIHE ; Vrije U., Brussels) ; Brunbauer, F (CERN) ; Ferry, S (CERN) ; Ketzer, B (Bonn U., HISKP) ; Lisowska, M (CERN ; IRFU, Saclay) ; Muller, H (CERN ; Bonn U.) ; de Oliveira, R (CERN) ; Oliveri, E (CERN) ; Orlandini, G (CERN ; Erlangen - Nuremberg U.) et al.
We describe the development of a position-sensitive Gas Electron Multiplier detector prototype, providing for each ionizing event three coordinates: the cartesian X and Y, and U at 45°. Simultaneous recording of the three projections permits ambiguity-free reconstruction of multiple tracks, and aims at operation in very high intensity radiation fields..
2023 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1052 (2023) 168257
Fulltext: PDF;
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Studying signals in particle detectors with resistive elements such as the 2D resistive strip bulk MicroMegas
/ Janssens, Djunes (CERN ; Brussels U., IIHE ; Vrije U., Brussels) ; Brunbauer, Florian (CERN) ; Flöthner, Karl Jonathan (CERN ; Helmholtz Inst., Mainz) ; Lisowska, Marta (CERN ; U. Paris-Saclay) ; Muller, Hans (CERN ; Bonn U.) ; Oliveri, Eraldo (CERN) ; Orlandini, Giorgio (CERN ; Erlangen - Nuremberg U.) ; Riegler, Werner (CERN) ; Ropelewski, Leszek (CERN) ; Schindler, Heinrich (CERN) et al.
As demonstrated by the ATLAS New Small Wheel community with their MicroMegas (MM) design, resistive electrodes are now used in different detector types within the Micro Pattern Gaseous Detector family to improve their robustness or performance. The extended form of the Ramo-Shockley theorem for conductive media has been applied to a 1 M$\Omega$/$\Box$ 2D resistive strip bulk MM to calculate the signal's spreading over neighbouring channels using an 80 GeV/c muon track. [...]
arXiv:2304.01883.-
2023-08-23 - 7 p.
- Published in : JINST
Fulltext: document - PDF; 2304.01883 - PDF;
In : 7th International Conference on Micro Pattern Gaseous Detectors 2022 (MPGD 2022), Rehovot, Israel, 11 - 16 Dec 2022, pp.C08010
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The novel XYU-GEM to resolve ambiguities
/ Flöthner, K.J. (CERN ; Bonn U., HISKP) ; Brunbauer, F. (CERN) ; Ferry, S. (CERN) ; Garcia, F. (Helsinki U.) ; Janssens, D. (CERN ; Brussels U., IIHE ; Vrije U., Brussels) ; Ketzer, B. (Bonn U., HISKP) ; Lisowska, M. (CERN ; U. Paris-Saclay) ; Muller, H. (CERN ; Bonn U.) ; de Oliveira, R. (CERN) ; Oliveri, E. (CERN) et al.
Removing ambiguities within a single stage becomes crucial when one can not use multiple detectors behind each other to resolve them which naturally is the case for neutral radiation. An example would be RICH detectors. [...]
arXiv:2303.18105.-
2023-06-26 - 5 p.
- Published in : JINST
Fulltext: 2303.18105 - PDF; document - PDF;
In : 7th International Conference on Micro Pattern Gaseous Detectors 2022 (MPGD 2022), Rehovot, Israel, 11 - 16 Dec 2022, pp.C06025
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Towards robust PICOSEC Micromegas precise timing detectors
/ Lisowska, M. (CERN ; IRFU, Saclay) ; Angelis, Y. (Aristotle U., Thessaloniki) ; Aune, S. (IRFU, Saclay) ; Bortfeldt, J. (Munich U.) ; Brunbauer, F. (CERN) ; Chatzianagnostou, E. (Aristotle U., Thessaloniki) ; Dehmelt, K. (SUNY, Stony Brook) ; Desforge, D. (IRFU, Saclay) ; Fanourakis, G. (American Coll. of Greece) ; Floethner, K.J. (CERN ; Bonn U., HISKP) et al.
The PICOSEC Micromegas (MM) detector is a precise timing gaseous detector consisting of a Cherenkov radiator combined with a photocathode and a MM amplifying structure. A 100-channel non-resistive PICOSEC MM prototype with 10x10 cm^2 active area equipped with a Cesium Iodide (CsI) photocathode demonstrated a time resolution below 18 ps. [...]
arXiv:2303.18141; JLAB-PHY-23-3798.-
2023-07-28 - 8 p.
- Published in : JINST
Fulltext: 2303.18141 - PDF; FERMILAB-PUB-23-158-V - PDF; Publication - PDF; External links: JLab Document Server; Fermilab Library Server
In : 7th International Conference on Micro Pattern Gaseous Detectors 2022 (MPGD 2022), Rehovot, Israel, 11 - 16 Dec 2022, pp.C07018
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