A BGO scintillating bolometer as dark matter detector prototype
| Titre | A BGO scintillating bolometer as dark matter detector prototype |
| Type de publication | Journal Article |
| Year of Publication | 2009 |
| Auteurs | Coron, N, Garcia, E, Gironnet, J, Leblanc, J, de Marcillac, P, Martinez, M, Ortigoza, Y, de Solorzano, AO, Pobes, C, Puimedon, J, Redon, T, Sarsa, ML, Torres, L, Villar, JA |
| Journal | Optical Materials |
| Volume | 31 |
| Pagination | 1393-1397 |
| Date Published | Aug |
| ISBN Number | 0925-3467 |
| Numéro d'accès | WOS:000269235100004 |
| Résumé | A 46 g BGO (Bi(4)Ge(3)O(12)) scintillating bolometer has been tested at 20 mK as a prototype for dark matter direct detection in the frame of the ROSEBUD (Rare Objects SEarch with Bolometers UndergrounD) collaboration. The bolometer has been operated first in Orsay and then in an ultra-low background environment at the Canfranc Underground Laboratory. We analyze its response both in heat and light, and its particle discrimination capability. Light yield under gamma-ray excitation at several energies (from 88.0 to 1633.3 keV) and the relative light output for different particles (beta/gamma, alpha and neutrons) have been estimated. The analysis focuses on the discrimination of nuclear recoils, like those produced by hypothetical weakly interacting massive particles (WIMPs), against electron recoils, produced by beta/gamma radioactive background. (C) 2008 Elsevier B.V. All rights reserved. |
