26-30 July 2010
Montpellier 2 University
Europe/Paris timezone

2010 update on the ROSEBUD project

27 Jul 2010, 17:10
20m
Amphithéatre Dumontet (Montpellier 2 University)

Amphithéatre Dumontet

Montpellier 2 University

Place Eugene Bataillon, 34095 Montpellier Cedex 5 FRANCE

Speaker

Dr Ysrael Richard Ortigoza Paredes (University of Zaragoza)

Description

The ROSEBUD (Rare Objects SEarch with Bolometers UndergrounD) Collaboration has tested scintillating bolometers of BGO, Al2O3 and LiF in a common experimental set-up in an ultralow background environment at the Canfranc Underground Laboratory. We present the new results of a recent analysis of the data obtained. The BGO heat and light response to different particles has been measured, focusing on its capability for nuclear recoils discrimination against the beta/gamma background. Requirements of BGO as target for a competitive dark matter experiment and comparison of its sensitivity with that of other targets used in direct dark matter searches is discussed. We also have analyzed the simultaneous use of LiF and Al2O3 scintillating bolometers to monitor the neutron flux inside the experimental shielding. New Monte Carlo simulations of the recoils induced in Al2O3 by fast neutrons are presented.

Primary author

Dr Ysrael Richard Ortigoza Paredes (University of Zaragoza)

Co-authors

Mr Alfonso Ortíz de Solórzano (University of Zaragoza) Dr Ana Salinas (University of Zaragoza) Mr Carlos Ginestra (University of Zaragoza) Dr Carlos Pobes (University of Zaragoza) Mrs Clara Cuesta (University of Zaragoza) Dr Eduardo García (University of Zaragoza) Mr Johann Gironnet (Institut d'Astrophysique Spatiale) Dr Jorge Puimedón (University of Zaragoza) Dr José Ángel Villar (University of Zaragoza) Dr Lidia Torres (Institut d'Astrophysique Spatiale) Dr María Luisa Sarsa (University of Zaragoza) Dr María Martínez (Institut d'Astrophysique Spatiale) Dr Noël Coron (Institut d'Astrophysique Spatiale) Dr Pierre De Marcillac (Institut d'Astrophysique Spatiale) Mr Therry Redon (Institut d'Astrophysique Spatiale) Mr Tomás Rolón (University of Zaragoza)

Presentation Materials