A low background Micromegas detector has been operating in the CAST experiment at CERN for the search of solar axions during the first phase of the experiment (2002-2004). The detector, made out of low radioactivity materials, operated efficiently and achieved a very low level of background rejection (5 x 10^-5 counts/keV/cm^2/s) without shielding.
@article{arxiv.physics/0702190,
title = {The Micromegas detector of the CAST experiment},
author = {P. Abbon and S. Andriamonje and S. Aune and T. Dafni and M. Davenport and E. Delagnes and R. de Oliveira and G. Fanourakis and E. Ferrer Ribas and J. Franz and T. Geralis and M. Gros and Y. Giomataris and I. G. Irastorza and K. Kousouris and J. Morales and T. Papaevangelou and J. Ruz and K. Zachariadou and K. Zioutas},
journal= {arXiv preprint arXiv:physics/0702190},
year = {2008}
}
Comments
13 pages, 12 figures and images, submitted to New Journal of