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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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Time Projection Chamber for GADGET II
/ Mahajan, Ruchi (Michigan State U., East Lansing (main)) ; Wheeler, T. (Michigan State U., East Lansing (main) ; Michigan State U.) ; Pollacco, E. (IRFU, Saclay) ; Wrede, C. (Michigan State U. ; Michigan State U., East Lansing (main)) ; Adams, A. (Michigan State U., East Lansing (main) ; Michigan State U.) ; Alvarez-Pol, H. (Santiago de Compostela U., IGFAE) ; Andalib, A. (Michigan State U., East Lansing (main)) ; Anthony, A. (High Point U.) ; Ayyad, Y. (Santiago de Compostela U., IGFAE) ; Bazin, D. (Michigan State U., East Lansing (main) ; Michigan State U.) et al.
Background: The established GADGET detection system, designed for measuring weak, low-energy $\beta$-delayed proton decays, features a gaseous Proton Detector with MICROMEGAS readout for calorimetric particle detection, surrounded by a Segmented Germanium Array for high-resolution prompt $\gamma$-ray detection. Purpose: To upgrade GADGET's Proton Detector to operate as a compact Time Projection Chamber (TPC) for the detection, 3D imaging and identification of low-energy $\beta$-delayed single- and multi-particle emissions mainly of interest to astrophysical studies. [...]
arXiv:2401.01904.-
2024-09-12 - 13 p.
- Published in : Phys. Rev. C 110 (2024) 035807
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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
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In : 7th International Conference on Micro Pattern Gaseous Detectors 2022 (MPGD 2022), Rehovot, Israel, 11 - 16 Dec 2022, pp.C06019
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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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PUMA, antiProton unstable matter annihilation
/ PUMA Collaboration
PUMA, antiProton Unstable Matter Annihilation, is a nuclear-physics experiment at CERN aiming at probing the surface properties of stable and rare isotopes by use of low-energy antiprotons. Low-energy antiprotons offer a very unique sensitivity to the neutron and proton densities at the annihilation site, i.e. [...]
2022 - 69 p.
- Published in : Eur. Phys. J. A 58 (2022) 88
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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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PUMA: antiprotons and radioactive nuclei
/ Aumann, T (TU Darmstadt) ; Bartmann, W (CERN) ; Bouvard, A (CERN) ; Boine-Frankenheim, O (TU Darmstadt) ; Broche, A (CERN) ; Butin, F (CERN) ; Calvet, D (CEA) ; Carbonell, J (IPN Orsay) ; Chiggiato, P (CERN) ; De Gersem, H (TU Darmstadt) et al.
Antiprotons as a probe to study short-lived isotopes remain unexploited despite past pioneering works with stable nuclei. [...]
CERN-SPSC-2019-033 ; SPSC-P-361.
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2019.
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A study in using MICROMEGAS to improve particle identification with the TAMU-MDM focal plane detectorA study in using MICROMEGAS to improve particle identification with the TAMU-MDM focal plane detector
/ Spiridon, A. (Texas A-M, Cyclotron Inst. ; Bucharest U.) ; Pollacco, E. (IRFU, Saclay) ; Saastamoinen, A. (Texas A-M, Cyclotron Inst.) ; Dag, M. (Texas A-M, Cyclotron Inst.) ; Roeder, B. (Texas A-M, Cyclotron Inst.) ; Tribble, R. (Texas A-M, Cyclotron Inst.) ; Trache, L. (Bucharest, IFIN-HH) ; Pascovici, G. (Bucharest, IFIN-HH) ; Mehl, B. (CERN) ; de Oliveira, R. (CERN)
A MICROMEGAS detection amplifier has been incorporated into the design of the TAMU MDM focal plane detector with the purpose of improving the energy resolution and thus, the particle identification. Beam tests showed a factor of 2 improvement over the original design, from 10-12% to 4-6%, for ions with A<40 at E/A around 10-20 MeV..
arXiv:1907.02327.-
2019-11-01 - 7 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 943 (2019) 162461
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Transfer reactions induced with $^{56}$Ni: shell gaps and np pairing
/ Georgiadou, A (Orsay, IPN ; U. Paris-Sud 11, Dept. Phys., Orsay ; Paris, IN2P3) ; Assié, M (Orsay, IPN ; Paris, IN2P3) ; Blumenfeld, Y ; Crom, B Le ; Guillot, J ; Flavigny, F ; Achouri, L ; Aouadi, M ; Bastin, B ; Benitez, A et al.
The structure of the unstable doubly magic nucleus $^{56}$Ni has been investigated by measuring one-and two-nucleon transfer reactions. The radioactive beam of $^{56}$Ni was produced at GANIL-Caen, France at 30 MeV/u by means of the LISE spectrometer. [...]
Geneva : CERN, 2019 - 6 p.
- Published in : CERN Proc. (2019) , pp. 95-100
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In : 15th International Conference on Nuclear Reaction Mechanisms, Varenna, Italy, 11 - 15 Jun 2018, pp.95-100
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