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X-ray imaging with Micromegas detectors with optical readout
/ Cools, A. (IRFU, Saclay) ; Aune, S. (IRFU, Saclay) ; Beau, F. (Saclay) ; Brunbauer, F.M. (CERN) ; Benoit, T. (IRFU, Saclay) ; Desforge, D. (IRFU, Saclay) ; Ferrer-Ribas, E. (IRFU, Saclay) ; Kallitsopoulou, A. (IRFU, Saclay) ; Malgorn, C. (Saclay) ; Oliveri, E. (CERN) et al.
In the last years, optical readout of Micromegas gaseous detectors has been achieved by implementing a Micromegas detector on a glass anode coupled to a CMOS camera. Effective X-ray radiography was demonstrated using integrated imaging approach. [...]
arXiv:2303.17444.-
2023-06-16 - 6 p.
- Published in : JINST 18 (2023) C06019
Fulltext: PDF;
In : 7th International Conference on Micro Pattern Gaseous Detectors 2022 (MPGD 2022), Rehovot, Israel, 11 - 16 Dec 2022, pp.C06019
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2.
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The large inner Micromegas modules for the Atlas Muon Spectrometer Upgrade: construction, quality control and characterization
/ Allard, J. (IRFU, Saclay) ; Andari, N. (IRFU, Saclay) ; Anfreville, M. (IRFU, Saclay) ; Attié, D. (IRFU, Saclay) ; Aubernon, E. (IRFU, Saclay) ; Aune, S. (IRFU, Saclay) ; Bachacou, H. (IRFU, Saclay) ; Balli, F. (IRFU, Saclay) ; Bauer, F. (IRFU, Saclay) ; Beltramelli, J. (IRFU, Saclay) et al.
The steadily increasing luminosity of the LHC requires an upgrade with high-rate and high-resolution detector technology for the inner end cap of the ATLAS muon spectrometer: the New Small Wheels (NSW). In order to achieve the goal of precision tracking at a hit rate of about 15 kHz/cm$^2$ at the inner radius of the NSW, large area Micromegas quadruplets with 100 \microns spatial resolution per plane have been produced. [...]
arXiv:2105.13709.-
2022-03-01 - 43 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1026 (2022) 166143
Fulltext: 1-s2.0-S0168900221010330-main - PDF; 2105.13709 - PDF;
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3.
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Spatial resolution studies using point spread function extraction in optically read out Micromegas and GEM detectors
/ Cools, A. (IRFU, Saclay) ; Ferrer-Ribas, E. (IRFU, Saclay) ; Papaevangelou, T. (IRFU, Saclay) ; Pollacco, E.C. (IRFU, Saclay) ; Lisowska, M. (CERN) ; Brunbauer, F.M. (CERN) ; Oliveri, E. (CERN) ; Iguaz, F.J. (SOLEIL, Saint-Aubin)
Optically read out gaseous detectors are used in track reconstruction and imaging applications requiring high granularity images. Among resolution-determining factors, the amplification stage plays a crucial role and optimisations of detector geometry are pursued to maximise spatial resolution. [...]
arXiv:2407.15491.-
2024-10-07 - 22 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1069 (2024) 169933
Fulltext: PDF;
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Characterization of a depleted monolithic pixel sensors in 150 nm CMOS technology for the ATLAS Inner Tracker upgrade
/ Iguaz, F.J. (IRFU, Saclay) ; Balli, F. (IRFU, Saclay) ; Barbero, M. (Marseille, CPPM) ; Bhat, S. (Marseille, CPPM) ; Breugnon, P. (Marseille, CPPM) ; Caicedo, I. (Bonn U.) ; Chen, Z. (Marseille, CPPM) ; Degerli, Y. (IRFU, Saclay) ; Godiot, S. (Marseille, CPPM) ; Guilloux, F. (IRFU, Saclay) et al.
This work presents a depleted monolithic active pixel sensor (DMAPS) prototype manufactured in the LFoundry 150\,nm CMOS process. DMAPS exploit high voltage and/or high resistivity inclusion of modern CMOS technologies to achieve substantial depletion in the sensing volume. [...]
arXiv:1806.04400.-
2019-08-21 - 2 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 936 (2019) 652-653
Fulltext: PDF;
In : Frontier Detectors for Frontier Physics: XIV Pisa Meeting on Advanced Detectors, La Biodola, Isola D'elba, Italy, 27 May - 2 Jun 2018, pp.652-653
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6.
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Charged particle timing at sub-25 picosecond precision: the PICOSEC detection concept
/ Iguaz, F.J. (IRFU, Saclay) ; Bortfeldt, J. (CERN) ; Brunbauer, F.M. (CERN) ; David, C. (CERN) ; Desforge, D. (IRFU, Saclay) ; Fanourakis, G. (Democritos Nucl. Res. Ctr.) ; Franchi, J. (CERN) ; Gallinaro, M. (LIP, Lisbon) ; García, F. (Helsinki U.) ; Giomataris, I. (IRFU, Saclay) et al.
The PICOSEC detection concept consists in a "two-stage" Micromegas detector coupled to a Cherenkov radiator and equipped with a photocathode. A proof of concept has already been tested: a single-photoelectron response of 76 ps has been measured with a femtosecond UV laser at CEA/IRAMIS, while a time resolution of 24 ps with a mean yield of 10.4 photoelectrons has been measured for 150 GeV muons at the CERN SPS H4 secondary line. [...]
arXiv:1806.04395.-
2019-08-21 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 936 (2019) 515-518
Fulltext: PDF; Preprint: PDF;
In : Frontier Detectors for Frontier Physics: XIV Pisa Meeting on Advanced Detectors, La Biodola, Isola D'elba, Italy, 27 May - 2 Jun 2018, pp.515-518
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7.
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PICOSEC: Charged particle timing at sub-25 picosecond precision with a Micromegas based detector
/ Bortfeldt, J. (CERN) ; Brunbauer, F. (CERN) ; David, C. (CERN) ; Desforge, D. (IRFU, Saclay) ; Fanourakis, G. (Democritos Nucl. Res. Ctr.) ; Franchi, J. (CERN) ; Gallinaro, M. (LIP, Lisbon) ; Giomataris, I. (IRFU, Saclay) ; González-Díaz, D. (Santiago de Compostela U., IGFAE) ; Gustavsson, T. (IRFU, Saclay) et al.
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 at high rates. The required accuracy follows directly from the nominal interaction distribution within a bunch crossing ($\sigma_z\sim5$ cm, $\sigma_t\sim170$ ps). [...]
arXiv:1712.05256.-
2018-09-21 - 9 p.
Fulltext: arXiv:1712.05256 - PDF; 10.1016_j.nima.2018.04.033 - PDF; 1-s2.0-S0168900218305369-main - PDF;
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8.
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Precise Charged Particle Timing with the PICOSEC Detector
/ Bortfeldt, J. (CERN) ; Brunbauer, F. (CERN) ; David, C. (CERN) ; Desforge, D. (IRFU, Saclay) ; Fanourakis, G. (Democritos Nucl. Res. Ctr.) ; Franchi, J. (CERN) ; Gallinaro, M. (LIP, Lisbon) ; García, F. (Helsinki Inst. of Phys.) ; Giomataris, I. (IRFU, Saclay) ; Gustavsson, T. (LIDYL, Saclay) et al.
The experimental requirements in near future accelerators (e.g. High Luminosity-LHC) has stimulated intense interest in development of detectors with high precision timing capabilities. [...]
arXiv:1901.03355.-
2019-02-26 - 7 p.
- Published in : AIP Conf. Proc. 2075 (2019) 080009
Fulltext: PDF;
In : 10th International Physics Conference of the Balkan Physical Union, Sofia, Bulgaria, 26 - 30 Aug 2018, pp.080009
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Timing Performance of a Micro-Channel-Plate Photomultiplier Tube
/ Bortfeldt, Jonathan (CERN) ; Brunbauer, F. (CERN) ; David, C. (CERN) ; Desforge, D. (IRFU, Saclay) ; Fanourakis, G. (Democritos Nucl. Res. Ctr.) ; Gallinaro, M. (LIP, Lisbon) ; Garcıa, F. (Helsinki U.) ; Giomataris, I. (IRFU, Saclay) ; Gustavsson, T. (LIDYL, Saclay) ; Guyot, C. (IRFU, Saclay) et al.
The spatial dependence of the timing performance of the R3809U-50 Micro-Channel-Plate PMT (MCP-PMT) by Hamamatsu was studied in high energy muon beams. Particle position information is provided by a GEM tracker telescope, while timing is measured relative to a second MCP-PMT, identical in construction. [...]
arXiv:1909.12604.-
2020-04-21 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 960 (2020) 163592
Fulltext: PDF; Fulltext from Publisher: PDF; Published fulltext: 1-s2.0-S0168900220301613-main - PDF; a51dae9a2ef3e2858edfe138fb2dec2d - PDF;
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10.
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In-beam γ -ray and electron spectroscopy of $^{249,251}$Md
/ Briselet, R. (IRFU, Saclay) ; Theisen, Ch. (IRFU, Saclay) ; Sulignano, B. (IRFU, Saclay) ; Airiau, M. (IRFU, Saclay) ; Auranen, K. (Jyvaskyla U.) ; Cox, D.M. (Jyvaskyla U. ; Liverpool U.) ; Déchery, F. (IRFU, Saclay ; Strasbourg, IPHC) ; Drouart, A. (IRFU, Saclay) ; Favier, Z. (IRFU, Saclay) ; Gall, B. (Strasbourg, IPHC) et al.
The odd-$Z$ $^{251}$Md nucleus was studied using combined $\gamma$-ray and conversion-electron in-beam spectroscopy. Besides the previously observed rotational band based on the $[521]1/2^-$ configuration, another rotational structure has been identified using $\gamma$-$\gamma$ coincidences. [...]
arXiv:2001.10235.-
2020-07-09 - 16 p.
- Published in : Phys. Rev. C 102 (2020) 014307
Fulltext: PDF;
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