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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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Neutron imaging with Micromegas detectors with optical readout
/ Cools, A (IRFU, Saclay) ; Aune, S (IRFU, Saclay) ; Brunbauer, F M (CERN) ; Benoit, T (IRFU, Saclay) ; Corsi, A (IRFU, Saclay) ; Ferrer-Ribas, E (IRFU, Saclay) ; Iguaz, F J (SOLEIL, Saint-Aubin) ; Mazoin, C (IRFU, Saclay) ; Oliveri, E (CERN) ; Papaevangelou, T (IRFU, Saclay) et al.
Optical readout of Micromegas gaseous detectors has been achieved by implementing a Micromegas detector on a glass substrate with a glass anode and a CMOS camera. Efficient X-ray radio-graphy has been demonstrated due to the integrated imaging approach inherent to optical readout. [...]
2023 - 4 p.
- Published in : EPJ Web Conf. 288 (2023) 07009
Fulltext: PDF;
In : Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA 2023), Lucca, Italy, 12 - 16 Jun 2023, pp.07009
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3.
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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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4.
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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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5.
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Observation of strong wavelength-shifting in the argon-tetrafluoromethane system
/ Amedo, P. (Santiago de Compostela U., IGFAE) ; González-Díaz, D. (Santiago de Compostela U., IGFAE) ; Brunbauer, F.M. (CERN) ; Fernández-Posada, D.J. (Santiago de Compostela U., IGFAE) ; Oliveri, E. (CERN) ; Ropelewski, L. (CERN)
We report the scintillation spectra of Ar-CF$_4$ mixtures in the range 210-800~nm, obtained under X-ray irradiation for various pressures (1-5~bar) and concentrations (0-100%). [...]
arXiv:2306.09919.
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27 p.
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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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29.
Fermilab Library Server - Fulltext - Fulltext
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Spatial resolution improvements with finer-pitch GEMs
/ Flöthner, K.J. (CERN ; Bonn U., HISKP) ; Scharenberg, L. (CERN) ; Brask, A. (Aarhus U. (main) ; CERN) ; Brunbauer, F. (CERN) ; Garcia, F. (Helsinki Inst. of Phys.) ; Janssens, D. (CERN) ; Ketzer, B. (Bonn U., HISKP) ; Lisowska, M. (CERN ; U. Paris-Saclay) ; Muller, H. (CERN ; Bonn U.) ; Oliveri, E. (CERN) et al.
Gas Electron Multipliers (GEMs) are used in many particle physics experiments, employing their 'standard' configuration with amplification holes of 140 um pitch in a hexagonal pattern. However, the collection of the charge cloud from the primary ionisation electrons from the drift region of the detector into the GEM holes affects the position information from the initial interacting particle. [...]
arXiv:2406.05836.-
2024-07-24 - 11 p.
- Published in : JINST 19 (2024) P07027
Fulltext: 2406.05836 - PDF; document - PDF;
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Characterisation of resistive MPGDs with 2D readout
/ Scharenberg, L. (CERN) ; Brunbauer, F. (CERN) ; Danielsson, H. (CERN) ; Fang, Z. (CUST, SKLPDE ; Hefei, CUST) ; Flöthner, K.J. (CERN ; Bonn U., HISKP) ; Garcia, F. (Helsinki Inst. of Phys.) ; Janssens, D. (CERN ; Brussels U., IIHE ; Vrije U., Brussels) ; Lisowska, M. (CERN ; U. Paris-Saclay) ; Liu, J. (CUST, SKLPDE ; Hefei, CUST) ; Lyu, Y. (CUST, SKLPDE ; Hefei, CUST) et al.
Micro-Pattern Gaseous Detectors (MPGDs) with resistive anode planes provide intrinsic discharge robustness while maintaining good spatial and time resolutions. Typically read out with 1D strips or pad structures, here the characterisation results of resistive anode plane MPGDs with 2D strip readout are presented. [...]
arXiv:2402.03899.-
2024-05-21 - 13 p.
- Published in : JINST 19 (2024) P05053
Fulltext: document - PDF; 2402.03899 - PDF;
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