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1.
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Development of a novel segmented mesh MicroMegas detector for neutron beam profiling
/ Diakaki, M (IRFU, Saclay ; CERN) ; Berthoumieux, E (IRFU, Saclay) ; Papaevangelou, T (IRFU, Saclay) ; Gunsing, F (IRFU, Saclay) ; Tsiledakis, G (IRFU, Saclay) ; Dupont, E (IRFU, Saclay) ; Anvar, S (IRFU, Saclay) ; Audouin, L (Orsay, IPN) ; Aznar, F (Zaragoza U. ; U. Zaragoza (main)) ; Belloni, F (IRFU, Saclay ; Geel, JRC) et al.
A novel MicroMegas detector based on microbulk technology with an embedded XY strip structure was developed, obtained by segmenting both the mesh and the anode in perpendicular directions. This results in a very low-mass device with good energy and spatial resolution capabilities. [...]
2018 - 10 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 903 (2018) 46-55
Fulltext: PDF; Fulltext from Publisher: PDF;
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2.
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Micromegas for dark matter searches: CAST/IAXO & TREX-DM experiments
/ Garza, J.G. (Zaragoza U.) ; Aune, S. (Saclay) ; Aznar, F. (Zaragoza U.) ; Castel, J.F. (Zaragoza U.) ; Cebrián, S. (Zaragoza U.) ; Dafni, T. (Zaragoza U.) ; Ferrer-Ribas, E. (Saclay) ; Galán, J. (Zaragoza U.) ; García, J.A. (Zaragoza U.) ; Giomataris, I. (Saclay) et al.
The most compelling candidates for Dark Matter to day are WIMPs and axions. The applicability of gasesous Time Projection Chambers (TPCs) with Micromesh Gas Structures (Micromegas) to the search of these particles is explored within this work. [...]
arXiv:1609.06459.-
2018 - 4 p.
- Published in : EPJ Web Conf. 174 (2018) 01008
Fulltext: arXiv:1609.06459 - PDF; epjconf_mpgd2018_01008 - PDF; External link: Preprint
In : 4th International Conference on Micro Pattern Gaseous Detectors - MPGD2015, Trieste, Italy, 12 - 15 Oct 2015, pp.01008
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3.
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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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4.
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A real x-y microbulk Micromegas with segmented mesh
/ Geralis, Theodoros (Democritos Nucl. Res. Ctr.) ; Davenport, Martyn (CERN) ; De Oliveira, Rui (CERN) ; Ferry, Serge (CERN) ; Kalamaris, Athanasios (Democritos Nucl. Res. Ctr.) ; Vassou, Chrysoula (Democritos Nucl. Res. Ctr.) ; Ferrer Ribas, Esther (IRFU, Saclay) ; Kebbiri, Mariam (IRFU, Saclay) ; Papaevangelou, Thomas (IRFU, Saclay) ; Aznar, Francisco (U. Zaragoza, LFNAE) et al.
SISSA, 2014
- Published in : PoS TIPP2014 (2014) 055
Fulltext: PDF; External link: Published version from PoS
In : International Conference on Technology and Instrumentation in Particle Physics 2014, Amsterdam, Netherlands, 2 - 6 Jun 2014, pp.055
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5.
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6.
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Low Background Micromegas in CAST
/ Garza, J.G. (Zaragoza U.) ; Aune, S. (IRFU, Saclay) ; Aznar, F. (Zaragoza U. ; LSC, Canfranc) ; Calvet, D. (IRFU, Saclay) ; Castel, J.F. (Zaragoza U.) ; Christensen, F.E. (Denmark, Tech. U.) ; Dafni, T. (Zaragoza U.) ; Davenport, M. (CERN) ; Decker, T. (LLNL, Livermore) ; Ferrer-Ribas, E. (IRFU, Saclay) et al.
Solar axions could be converted into x-rays inside the strong magnetic field of an axion helioscope, triggering the detection of this elusive particle. Low background x-ray detectors are an essential component for the sensitivity of these searches. [...]
arXiv:1503.05107.-
2015-11-16 - 6 p.
- Published in : J. Phys.: Conf. Ser. 650 (2015) 012008
Fulltext: arXiv:1503.05107 - PDF; 10.1088_1742-6596_650_1_012008 - PDF; IOP Open Access article: PDF; External link: Preprint
In : 7th Symposium on large TPCs for low-energy rare event detection, Paris, France, 15 - 17 Dec 2014, pp.012008
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7.
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Lowering the background level and the energy threshold of Micromegas x-ray detectors for axion searches
/ Iguaz, F.J. (Zaragoza U.) ; Aune, S. (Saclay) ; Aznar, F. (Zaragoza U.) ; Castel, J.F. (Zaragoza U.) ; Dafni, T. (Zaragoza U.) ; Davenport, M. (CERN) ; Ferrer-Ribas, E. (Saclay) ; Galan, J. (Saclay) ; Garcia, J.A. (Zaragoza U.) ; Garza, J.G. (Zaragoza U.) et al.
Axion helioscopes search for solar axions by their conversion in x-rays in the presence of high magnetic fields. The use of low background x-ray detectors is an essential component contributing to the sensitivity of these searches. [...]
arXiv:1501.01466.-
SISSA, 2014-10-17 - 4 p.
- Published in : PoS TIPP2014 (2014) 295
Fulltext: PDF; External link: PoS server
In : International Conference on Technology and Instrumentation in Particle Physics 2014, Amsterdam, Netherlands, 2 - 6 Jun 2014, pp.295
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8.
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X-ray detection with Micromegas with background levels below 10$^{-6}$ keV$^{-1}$cm$^{-2}$s$^{-1}$
/ Aune, S. (Saclay) ; Aznar, F. (Zaragoza U.) ; Calvet, D. (Saclay) ; Dafni, T. (Zaragoza U.) ; Diago, A. (Zaragoza U.) ; Druillole, F. (Saclay) ; Fanourakis, G. (Democritos Nucl. Res. Ctr.) ; Ferrer-Ribas, E. (Saclay) ; Galán, J. (Zaragoza U.) ; García, J.A. (Zaragoza U.) et al.
Micromegas detectors are an optimum technological choice for the detection of low energy x-rays. The low background techniques applied to these detectors yielded remarkable background reductions over the years, being the CAST experiment beneficiary of these developments. [...]
arXiv:1312.4282.-
2013-12-23 - 14 p.
- Published in : JINST 8 (2013) C12042
Fulltext: PDF; IOP Open Access article: PDF; External link: Preprint
In : 3rd International Conference on Micro Pattern Gaseous Detectors, Zaragoza, Spain, 1 - 6 Jul 2013, pp.C12042
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