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1.
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Primary and secondary scintillation of CF4-based mixtures in low-pressure gaseous detectors
/ Brunbauer, F M (CERN) ; Amedo, P (Santiago de Compostela U., IGFAE) ; Flöthner, K J (CERN ; Bonn U.) ; Gonzalez Diaz, D (Santiago de Compostela U., IGFAE) ; Janssens, D (CERN) ; Leardini, S (Santiago de Compostela U., IGFAE) ; Lisowska, M (CERN) ; Müller, H (CERN ; Bonn U.) ; Oliveri, E (CERN) ; Orlandini, G (CERN) et al.
Optical readout of micro-pattern gaseous detectors relies on recording scintillation light emitted during electron avalanche multiplication with imaging sensors of high-granularity pixelated readout. It can be used in applications such as optical Time Projection Chambers for track reconstruction, low material budget beam monitoring or radiography, to name but a few. [...]
2025 - 8 p.
- Published in : Front. Detect. Sci. Tech. 3 (2025) 1561739
Fulltext: PDF;
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2.
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Integration of the FastIC front-end electronics into the Picosec MicroMegas detector
/ Scharenberg, L (CERN) ; Alozy, J (CERN) ; Angelis, Y (Aristotle U., Thessaloniki) ; Aune, S (IRFU, Saclay) ; Ballabriga, R (CERN) ; Bortfeldt, J (Munich U.) ; Brunbauer, F (CERN) ; Brunoldi, M (Pavia U. ; INFN, Pavia) ; Campbell, M (CERN) ; Datta, J (SUNY, Stony Brook) et al.
The Picosec MicroMegas collaboration aims to develop gaseous fast-timing detectors; experimentally, intrinsic time resolutions from around 50ps to better than 20ps are obtained, depending on the exact detector configuration. Parts of developments focus on exploring various options of fast-timing multi-channel front-end electronics, to meet the data processing demands of experimental applications. [...]
2025 - 10 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1076 (2025) 170496
Fulltext: PDF;
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3.
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Embedding the Timepix4 in Micro-Pattern Gaseous Detectors
/ Scharenberg, L. (CERN) ; Alozy, J. (CERN) ; Billereau, W. (CERN) ; Brunbauer, F. (CERN) ; Campbell, M. (CERN) ; Carbonez, P. (CERN) ; Flöthner, K.J. (CERN ; Bonn U., HISKP) ; Garcia, F. (Helsinki U.) ; Garcia-Tejedor, A. (CERN) ; Genetay, T. (CERN) et al.
The combination of Micro-Pattern Gaseous Detectors (MPGDs) and pixel charge readout enables specific experimental opportunities. Using the Timepix4 for the readout is advantageous because of its size (around 7 cm^2 active area) and its Through Silicon Vias. [...]
arXiv:2503.12458.-
2025-06-02 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1080 (2025) 170657
Fulltext: 2503.12458 - PDF; publication - PDF;
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The Ultra-Low material budget GEM based TPC for tracking with VMM3a readout
/ Garcia, F. (Helsinki U.) ; Flöthner, K.J. (CERN ; Bonn U., HISKP) ; Amato, A. (PSI, Villigen) ; Biswas, S. (PSI, Villigen) ; Brunbauer, F.M. (CERN) ; Heiss, M.W. (PSI, Villigen) ; Janka, G. (PSI, Villigen) ; Janssens, D. (CERN) ; Lisowska, M. (CERN ; U. Paris-Saclay) ; Meurer, M. (CERN ; Munich U.) et al.
The Gaseous Electron Multiplier-based Time Projection Chamber (GEM-TPC) in TWIN configuration for particle tracking has been consolidated after extensive investigations in different facilities to study its tracking performance. The most attractive feature of this detector is its ultra-low material budget, which is 0.28% X/X$_0$ and can be further reduced by decreasing the thickness of the gas traversed by the incident particles. [...]
arXiv:2501.09587.-
2025-04-01 - 7 p.
- Published in : JINST 20 (2025) C04004
Fulltext: 2501.09587 - PDF; document - PDF;
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6.
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Application of the VMM3a/SRS: A t0-less TWIN GEM-based TPC
/ Flöthner, K.J. (CERN ; Bonn U., HISKP) ; Garcia, F. (Helsinki U.) ; Oberhauser, B. (PSI, Villigen ; Zurich, ETH) ; Brunbauer, F. (CERN) ; Heiss, M.W. (PSI, Villigen) ; Janssens, D. (CERN ; Brussels U., IIHE ; Vrije U., Brussels) ; Ketzer, B. (Bonn U., HISKP) ; Lisowska, M. (CERN) ; Meurer, M. (CERN ; Munich U.) ; Muller, H. (CERN ; Bonn U.) et al.
Integrating the ATLAS/BNL VMM3a ASIC (Application Specific Integrated Circuit) into the RD51/SRS (Scalable Readout System) provides a self-triggered continuous readout system for various gaseous detectors. Since the system allows flexible parameters, such as switching the polarity, adjusting electronics gain or different peaking times, the settings can be adjusted for a wide range of detectors. [...]
arXiv:2501.10207.-
2025-07-17 - 6 p.
- Published in : JINST 20 (2025) C07050
Fulltext: 2501.10207 - PDF; document - PDF;
In : 8th International Conference on Micro-Pattern Gaseous Detectors (MPGD2024), Hefei, China, 14 - 18 October, pp.C07050
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7.
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PICOSEC Micromegas precise-timing detectors: development towards large-area application and integration
/ Meng, Y. (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. (SUNY, Stony Brook) ; Degmelt, K. (CERN) ; Fanourakis, G. (Democritos Nucl. Res. Ctr.) et al.
PICOSEC Micromegas (MM) is a precise timing gaseous detector based on a Cherenkov radiator coupled with a semi-transparent photocathode and an MM amplifying structure. The detector conceprt was successfully demonstrated through a single-channel prototype, achieving sub-25 ps time resolution with Minimum Ionizing Particles (MIPs). [...]
arXiv:2501.04991.-
2025-03-11 - 9 p.
- Published in : JINST 20 (2025) C03015
Fulltext: PDF;
In : The 8th International Conference on Micro-Pattern Gaseous Detectors (MPGD2024), Hefei, China, 14 - 18 October, pp.C03015
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8.
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Towards MPGDs with embedded pixel ASICs
/ Scharenberg, L. (CERN) ; Alozy, J. (CERN) ; Billereau, W. (CERN) ; Brunbauer, F. (CERN) ; Campbell, M. (CERN) ; Carbonez, P. (CERN) ; Flöthner, K.J. (CERN ; Bonn U., HISKP) ; Garcia, F. (Helsinki Inst. of Phys.) ; Garcia-Tejedor, A. (CERN) ; Genetay, T. (CERN) et al.
Combining gaseous detectors with a high-granularity pixelated charge readout enables experimental applications which otherwise could not be achieved. This includes high-resolution tracking of low-energetic particles, requiring ultra-low material budget, X-ray polarimetry at low energies ($\lessapprox$ 2 keV) or rare-event searches which profit from event selection based on geometrical parameters. [...]
arXiv:2412.16950.-
2025-03-18 - 6 p.
- Published in : JINST 20 (2025) C03025
Fulltext: 2412.16950 - PDF; document - PDF;
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9.
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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; FERMILAB-PUB-24-0980-CMS-V.-
2024-10-16 - 4 p.
Fulltext: 2411.02532 - PDF; 9c2f4bb6f9210d520e7ca752a0ae2124 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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10.
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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; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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