1.
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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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2.
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Neutron and beta imaging with Micromegas detectors with optical readout
/ Cools, A (IRFU, Saclay) ; Aune, S (IRFU, Saclay) ; Beau, F (IJCLab, Orsay) ; Benali, M (LIST, Saclay) ; Brunbauer, F M (CERN) ; Benoit, T (IRFU, Saclay) ; Desforge, D (IRFU, Saclay) ; Ferrer-Ribas, E (IRFU, Saclay) ; Malgorn, C (IJCLab, Orsay) ; Oliveri, E (CERN) et al.
Recent developments have shown that coupling a Micromegas gaseous detector on a glass substrate with a transparent anode and a CMOS camera enables the optical readout of Micromegas detectors with a good spatial resolution, demonstrating that the glass Micromegas detector is well-suited for imaging. This feasibility test has been effectuated with low-energy X-ray photons also permitting energy resolved imaging. [...]
2023 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1048 (2023) 167910
In : 9th Conference on New Developments in Photodetection, Troyes, France, 4 - 8 Jul 2022, pp.167910
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3.
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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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4.
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Radiation imaging with glass Micromegas
/ Brunbauer, F M (CERN) ; Desforge, D (IRFU, Saclay) ; Ferrer-Ribas, E (IRFU, Saclay) ; Iguaz, F J (IRFU, Saclay) ; Mehl, B (CERN) ; De Oliveira, R (CERN) ; Oliveri, E (CERN) ; Papaevangelou, T (IRFU, Saclay) ; Pizzirusso, O (CERN) ; Pollacco, E C (IRFU, Saclay) et al.
Optically recording scintillation light emitted by MicroPattern Gaseous Detectors (MPGDs) with imaging sensors is a versatile and performant readout modality taking advantage of modern high granularity imaging sensors. To allow scintillation light readout of a detector based on MicroMesh Gaseous Structure (Micromegas) technology, we have integrated a Micromegas on a glass substrate with a transparent anode. [...]
2020 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 955 (2020) 163320
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5.
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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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6.
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Micromegas in CAST and prospects
/ Abbon, P (IRFU, Saclay) ; Andriamonje, S (IRFU, Saclay) ; Aune, S (IRFU, Saclay) ; Besin, D (IRFU, Saclay) ; Cazaux, S (IRFU, Saclay) ; Dafni, T (IRFU, SPhN, Saclay) ; Decker, T (LLNL, Livermore) ; Dogan, B O (Bogazici U.) ; Duportail, N (IRFU, Saclay) ; Fanourakis, G (Democritos Nucl. Res. Ctr.) et al.
A low background Micromegas X-ray detector has been used to search for solar axions in the CAST experiment at CERN. The detector has an active area of 7cm times 7cm, excellent spatial resolution (~70nm), and good energy resolution. [...]
Oct. - 6 p.
- Published in : 10.1109/NSSMIC.2006.353827
In : Nuclear Medical Imaging Conference, San Diego, CA, USA, 29 Oct - 4 Nov 2006, pp.3832-3837
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7.
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Detector design and performance tests of the ESS-neutron Beam Loss Monitor detectors
/ Segui, L (IRFU, Saclay) ; Dolenc Kittelmann, I (ESS, Lund) ; Papaevangelou, T (IRFU, Saclay) ; Aune, S (IRFU, Saclay) ; Benedetti, F (IRFU, Saclay) ; Gougnaud, F (IRFU, Saclay) ; Lahonde, C (IRFU, Saclay) ; Legou, P (IRFU, Saclay) ; Mariette, Y (IRFU, Saclay) ; Marroncle, J (IRFU, Saclay) et al.
A new type of beam loss monitor has been developed based on
the detection of fast neutrons produced by beam losses in hadron
linear accelerators. This neutron sensitive Beam Loss Monitor (nBLM)
has been concieved to fulfil the requirements of the European
Spallation Source (ESS) and it will be part of the ESS neutron
sensitive BLM system (ESS-nBLM). [...]
2023 - 18 p.
- Published in : JINST 18 (2023) P01013
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8.
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A Micromegas-based low-background x-ray detector coupled to a slumped-glass telescope for axion research
/ Aznar, F. (Zaragoza U.) ; Castel, J. (Zaragoza U.) ; Christensen, F.E. (Denmark, Tech. U.) ; Dafni, T. (Zaragoza U.) ; Decker, T.A. (LLNL, Livermore) ; Ferrer-Ribas, E. (IRFU, Saclay) ; Garcia, J.A. (Zaragoza U.) ; Giomataris, I. (IRFU, Saclay) ; Gracia, J.G. (Zaragoza U.) ; Hailey, C.J. (Columbia U.) et al.
We report on the design, construction and operation of a low background x-ray detection line composed of a shielded Micromegas (micromesh gaseous structure) detector of the microbulk technique. The detector is made from radiopure materials and is placed at the focal point of a $\sim$~5 cm diameter, 1.3 m focal-length, cone-approximation Wolter I x-ray telescope (XRT) comprised of thermally-formed (or "slumped") glass substrates deposited with multilayer coatings. [...]
arXiv:1509.06190.-
2015 - 21 p.
- Published in : JCAP 12 (2015) 008
Fulltext: PDF; IOP Open Access article: PDF; External link: Preprint
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9.
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The discrimination capabilities of Micromegas detectors at low energy
/ Iguaz, F.J. (IRFU, Saclay) ; Dafni, T. (Zaragoza U.) ; Ferrer-Ribas, E. (IRFU, Saclay) ; Galan, J. (IRFU, Saclay) ; Garcia, J.A. (Zaragoza U.) ; Gardikiotis, A. (Patras U.) ; Giomataris, I. (IRFU, Saclay) ; Irastorza, I.G. (Zaragoza U.) ; Mols, J.P. (IRFU, Saclay) ; Papaevangelou, T. (IRFU, Saclay) et al.
The latest generation of Micromegas detectors show a good energy resolution, spatial resolution and low threshold, which make them idoneous in low energy applications. Two micromegas detectors have been built for dark matter experiments: CAST, which uses a dipole magnet to convert axion into detectable x-ray photons, and MIMAC, which aims to reconstruct the tracks of low energy nuclear recoils in a mixture of CF4 and CHF3. [...]
arXiv:1110.2643.-
2012 - 9 p.
Fulltext: arXiv:1110.2643 - PDF; 10.1016_j.phpro.2012.02.446 - PDF; Physics Procedia - 1079 - PDF; External link: Preprint
In : 2nd International Conference on Technology and Instrumentation in Particle Physics, Chicago, IL, USA, 9 - 14 Jun 2011, pp.1079-1086
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10.
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Performance of large pixelised Micromegas detectors in the COMPASS environment
/ Thibaud, F (IRFU, Saclay) ; Abbon, P (IRFU, Saclay) ; Andrieux, V (IRFU, Saclay) ; Anfreville, M (IRFU, Saclay) ; Bedfer, Y (IRFU, Saclay) ; Burtin, E (IRFU, Saclay) ; Capozza, L (IRFU, Saclay) ; Coquelet, C (IRFU, Saclay) ; Curiel, Q (IRFU, Saclay) ; d'Hose, N (IRFU, Saclay) et al.
New large-size Micromegas detectors are being developed forthe future physics program of the COMPASS experiment at CERN. Thesedetectors will have a pixelised readout in their center to detectparticles in the beam region, where the particle flux can reachseveral MHz/cm2 in nominal conditions, and will have to handlehigh intensity hadron beams (up to a few 107 hadrons/s) with adischarge rate lower than 0.01 to 0.001 discharge/s. [...]
2014
- Published in : JINST 9 (2014) C02005
In : 3rd International Conference on Micro Pattern Gaseous Detectors, Zaragoza, Spain, 1 - 6 Jul 2013, pp.C13-07-01.1
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