The ROSEBUD experiment at Canfranc: 2001 report
Abstract
The ROSEBUD experiment for Direct Dark Matter detection settled in 1999 in the Canfranc Underground Laboratory. The first phase of the experiment was dedicated to the understanding and reduction of the radioactive background following successive removals of the radioimpure materials. Sapphire (25g, 50g) and germanium (67g) absorbers were used. Thresholds respectively lower than 1keV and 450 eV were achieved on these detectors. The second phase of the experiment plans to use scintillating bolometers to discriminate between recoiling nuclei and electrons. Prototypes using commercial CaWO4 (54g) and BGO (46g) were designed for this purpose. While internal contamination was found and identified in both targets, neutron calibrations revealed their high discrimination power. A 6 keV threshold on the heat channel of the BGO bolometer points out the interest of such a novel material, for Dark Matter research on neutralinos having spin-dependent or spin-independent interactions.
Cite
@article{arxiv.astro-ph/0112272,
title = {The ROSEBUD experiment at Canfranc: 2001 report},
author = {S. Cebrian and N. Coron and G. Dambier and E. Garcia and I. G. Irastorza and J. Leblanc and P. de Marcillac and A. Morales and J. Morales and A. Ortiz de Solorzano and J. Puimedon and M. L. Sarsa and J. A. Villar},
journal= {arXiv preprint arXiv:astro-ph/0112272},
year = {2015}
}
Comments
3 pages, 6 figures, Proceedings of the TAUP2001 Workshop. Submitted to Nucl. Phys. B (Proc. Suppl) Related information can be found on http://www.unizar.es/lfnae/