Micromegas in CAST and prospects

P Abbon ,A Giganon,M Gros,M Riallot,G Zaffanela,S Andriamonje,E Ferrer Ribas,N Duportail,S Aune,T Geralis,T Papaevangelou,K Zachariadou,Berkol Dogan ,G Fanourakis ,M J Pivovaroff ,I Giomataris ,Randal M Hill ,K Kousouris ,Jaime Ruz Armendariz ,T Dafní ,Todd A Decker ,J Morales ,I.g Irastorza ,J Galán Lacarra ,K Van Bibbe ,D Besin ,S Cazaux ,Régina Soufli

doi:10.1109/nssmic.2006.353827

Micromegas in CAST and prospects

P Abbon , A Giganon + Show 26 more

https://doi.org/10.1109/nssmic.2006.353827

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Publication Date: Oct 1, 2006

Citations: 1

Affiliation: CEA Saclay, Institute of Nuclear and Particle Physics, National Centre of Scientific Research "Demokritos", European Organization for Nuclear Research, Lawrence Livermore National Laboratory, Boğaziçi University, Universidad de Zaragoza, Atomic Energy and Alternative Energies Commission, CEA DAM Île-de-France

#Low Radioactivity Materials #Good Energy Resolution + Show 8 more

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Abstract

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. It is built using low radioactivity materials and the obtained background level is below 5times10-5 counts/keV/cm2/s. The detector is being upgraded for the second phase of the experiment (2006-2007) with a reduced active area. A focusing X-Ray optic and improved shielding will be used to further reduce the background by approximately two orders of magnitude.

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