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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
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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
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In : Advancements in Nuclear Instrumentation Measurement Methods and their Applications (ANIMMA 2023), Lucca, Italy, 12 - 16 Jun 2023, pp.07009
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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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DRD1 Extended R&D Proposal
/ Colaleo, Anna (Universita e INFN, Bari (IT)) ; Ropelewski, Leszek (CERN) ; Abbrescia, Marcello (INFN Bari) ; Aielli, Giulio (INFN Tor Vergata) ; Baracchini, Elisabetta (GSSI) ; Bortfeldt, Jonathan (LMU) ; Borysova, Maryna (WIS) ; Breskin, Amos (WIS) ; Bregant, Marco (Instituto de Física da Universidade de São Paulo) ; Brunbauer, Florian Maximilian (CERN) et al.
This document realized in the framework of the newly established Gaseous Detector R&D Collaboration (DRD1), presents a comprehensive overview of the current state-of-the-art and the challenges related to various gaseous detector concepts and technologies. [...]
CERN-DRDC-2024-003 ; DRDC-P-DRD1.
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2024.
DRD1 Extended R&D Proposal
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7.
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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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Progress in coupling MPGD-based photon detectors with nanodiamond photocathodes
/ Brunbauer, F.M. (CERN) ; Chatterjee, C. (INFN, Trieste) ; Cicala, G. (Bari U. ; INFN, Bari) ; Cicuttin, A. (ICTP, Trieste ; INFN, Trieste) ; Crespo, M.L. (ICTP, Trieste ; INFN, Trieste) ; D‘Ago, D. (INFN, Trieste ; Trieste U.) ; Dalla Torre, S. (INFN, Trieste) ; Dasgupta, S. (INFN, Trieste) ; Gregori, M. (INFN, Trieste) ; Levorato, S. (INFN, Trieste) et al.
The next generation of gaseous photon detectors is requested to overcome the limitations of the available technology, in terms of resolution and robustness. The quest for a novel photocathode, sensitive in the far vacuum ultra violet wavelength range and more robust than present ones, motivated an R&D; programme to explore nanodiamond based photoconverters, which represent the most promising alternative to cesium iodine. [...]
arXiv:2401.17485.-
2023-08-05 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1056 (2023) 168575
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In : 11th International Workshop on Ring Imaging Cherenkov Detectors (RICH 2022), Edinburgh, United Kingdom, 12 - 16 Sep 2022, pp.168575
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Employment of nanodiamond photocathodes on MPGD-based HEP detector at the future EIC
/ Brunbauer, F M (CERN) ; Chatterjee, C (INFN, Trieste) ; Cicala, G (INFN, Bari) ; Cicuttin, A (ICTP, Trieste) ; Ciliberti, P (Trieste U. ; INFN, Trieste) ; Crespo, M L (ICTP, Trieste) ; D’Ago, D (Trieste U. ; INFN, Trieste) ; Torre, S Dalla (INFN, Trieste) ; Dasgupta, S (ICTP, Trieste) ; Gregori, M (INFN, Trieste) et al.
In high momenta range, the construction of a Ring Imaging CHerenkov (RICH) detector for the particle identification at the future Electron Ion Collider (EIC) is a complicated task. A compact collider setup imposes to construct a RICH with a short radiator length, hence limiting the number of photons. [...]
2022 - 9 p.
- Published in : J. Phys. : Conf. Ser. 2374 (2022) 012140
Fulltext: PDF;
In : International Conference on Technology and Instrumentation in Particle Physics (TIPP 2021), Online, Canada, 24 - 29 May 2021, pp.012140
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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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