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IDM2008 - Identification of Dark Matter 2008
IDM2008 - Identification of Dark Matter 2008
18-22 August 2008 AlbaNova
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Sapphire, BGO and LiF scintillating bolometers developed for dark matter experiments (15'+5')
 
ROSEBUD (Rare Objects Search with Bolometers UndergrounD) is a 
collaboration between
the Institute d’Astrophysique Spatiale (IAS, Orsay, France) and the University of
Zaragoza (Zaragoza, Spain), focused on the development of scintillating 
bolometers
for WIMP (Weakly Interacting Massive Particles) searches. In this work we 
present the
results of tests performed with three small scintillating bolometers (50 g 
sapphire,
46 g BGO and 33 g LiF) used simultaneously in the same set-up and external 
background
conditions at the Canfranc Underground Laboratory. Sapphire and BGO have 
been studied
as possible dark matter targets. We analyze their particle discrimination 
capability
with special stress in the discrimination between nuclear recoils and 
beta/gamma
background events at low energy. Nuclear recoil spectra obtained 
simultaneously in
both detectors are shown and discussed. BGO and LiF can also be used to 
monitor
background. The BGO bolometer has been used as a gamma-ray spectrometer 
(profiting from
its high atomic number content) to analyze and reduce beta/gamma 
background of the
three detectors. The LiF scintillating bolometer can be applied through the 6Li 
(n,
alpha)t reaction to monitor neutron flux inside the experimental set-up.
 
Id: 387
Place: AlbaNova
Room: Oskar Klein auditorium
Starting date:
20-Aug-2008   08:30
Duration: 20'
Contribution type: Talk
Primary Authors: Mr. ORTIGOZA PAREDES, Ysrael Richard (University of Zaragoza, Spain)
Co-Authors: Dr. CORON, Noël (Institut d’Astrophysique Spatiale IAS Orsay, Paris, France)
Dr. GARCíA, Eduardo (University of Zaragoza, Spain)
Mr. GIRONNET, Johann (Institut d’Astrophysique Spatiale IAS Orsay, Paris, France)
Mr. LEBLANC, Jacques (Institut d’Astrophysique Spatiale IAS Orsay, Paris, France)
Dr. DE MARCILLAC, Pierre (Institut d’Astrophysique Spatiale IAS Orsay, Paris, France)
Dr. MARTíNEZ, María (University of Zaragoza, Spain)
Mr. ORTíZ DE SOLóRZANO, Alfonso (University of Zaragoza, Spain)
Dr. POBES, Carlos (University of Zaragoza, Spain)
Dr. PUIMEDóN, Jorge (University of Zaragoza, Spain)
Mr. REDON, Thierry (Institut d’Astrophysique Spatiale IAS Orsay, Paris, France)
Dr. SARSA, María Luisa (University of Zaragoza, Spain)
Mrs. TORRES, Lidia (University of Zaragoza, Spain)
Dr. VILLAR, José Angel (University of Zaragoza, Spain)
Presenters: Mr. ORTIGOZA PAREDES, Ysrael Richard
Material: slide Slides
 
Included in session: Direct detection - experiments
Included in track: Direct detection - experiments
 

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