Speaker
Mr
Miguel Ángel Oliván
(Universidad de Zaragoza)
Description
ANAIS (Annual modulation with NAI Scintillators) experiment will look for dark matter annual modulation with 250 kg of ultra-pure NaI(Tl) scintillators at the Canfranc Underground Laboratory (LSC), aiming to confirm the DAMA/LIBRA positive signal in a model-independent way. The detector will consist of 20 modules, each of them coupled to two photomultiplier tubes (PMTs). Two 12.5 kg each NaI(Tl) crystals provided by Alfa Spectra are currently taking data at the LSC. ANAIS crystal radiopurity goals are fulfilled for 40K and 232Th and 236U chains, but a 210Pb contamination out-of-equilibrium has been identified, whose origin has been determined and is being solved. The high light collection efficiency obtained with these prototypes allows us to anticipate an energy threshold of the order of 1 keVee. Finally, high quantum effiency Hamamatsu PMT test and muon veto characterization are presented.
Primary authors
Mr
Alfonso Ortiz de Solórzano
(Universidad de Zaragoza)
Dr
Carlos Ginestra
(Universidad de Zaragoza)
Dr
Carlos Pobes
(Universidad de Zaragoza)
Dr
Clara Cuesta
(University of Washington)
Prof.
Eduardo García
(Universidad de Zaragoza)
Prof.
Jorge Puimedón
(Universidad de Zaragoza)
Prof.
José Ángel Villar
(Universidad de Zaragoza)
Prof.
Julio Amaré
(Universidad de Zaragoza)
Prof.
María Luisa Sarsa
(Universidad de Zaragoza)
Dr
María Martínez
(Universidad de Zaragoza)
Mr
Miguel Ángel Oliván
(Universidad de Zaragoza)
Patricia Villar
(Universida de Zaragoza)
Prof.
Susana Cebrián
(Universidad de Zaragoza)
Dr
Ysrael Ortigoza
(Universidad de Zaragoza)
