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arXiv:0706.1636 (astro-ph)
[Submitted on 12 Jun 2007]

Title:Background studies and shielding effects for the TPC detector of the CAST experiment

Authors:G. Luzón, B. Beltrán, J. M. Carmona, S. Cebrián, H. Gómez, I. G. Irastorza, J. Morales, A. Ortíz, A. Rodríguez, J. Ruz, J. A. Villar
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Abstract: Sunset solar axions traversing the intense magnetic field of the CERN Axion Solar Telescope (CAST) experiment may be detected in a Time Projection Chamber (TPC) detector, as X-rays signals. These signals could be masked, however, by the inhomogeneous background of materials in the experimental site. A detailed analysis, based on the detector characteristics, the background radiation at the CAST site, simulations and experimental results, has allowed us to design a shielding which reduces the background level by a factor of ~4 compared to the detector without shielding, depending on its position, in the energy range between 1 and 10 keV. Moreover, this shielding has improved the homogeneity of background measured by the TPC.
Comments: 14 pages, 5 figures, accepted in New Journal of Physics
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:0706.1636 [astro-ph]
  (or arXiv:0706.1636v1 [astro-ph] for this version)
  https://doi.org/10.48550/arXiv.0706.1636
Journal reference: New J.Phys.9:208,2007
Related DOI: https://doi.org/10.1088/1367-2630/9/7/208

Submission history

From: Gloria Luzón [view email]
[v1] Tue, 12 Jun 2007 08:54:30 UTC (382 KB)
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