Prof.
Gianluca Cavoto
(Sapienza Univ Roma and INFN Roma)
9/11/19, 2:30 PM
New technologies
Oral presentation in parallel session
Directional detection of Dark Matter particles (DM) could be accomplished by studying either ion or electron recoils in large arrays of parallel carbon nanotubes. For instance, a MeV mass DM particle could scatter off a lattice electron, resulting in the transfer of sufficient energy to eject the electron from the nanotube surface. The electron can eventually be detected whenever an external...
Claudio Savarese
(Princeton University)
9/11/19, 2:50 PM
New technologies
Oral presentation in parallel session
The DarkSide programme aims to a WIMP direct detection using a dual phase argon time projection chamber. The next generation experiment, DS-20k, will be a detector in excess of 20 tonnes of fiducial mass. A pivotal aspect to the sensitivity of the experiment is its light detection technology. The DarkSide collaboration decided to adopt a new family of photo-sensors called Silicon...
Dr
Walter Marcello Bonivento
(INFN)
9/11/19, 3:10 PM
New technologies
Oral presentation in parallel session
The DarkSide-50 dark matter search experiment demonstrated that argon derived from deep underground sources can be highly reduced in 39Ar, and since then the demand for this commodity has risen. Several fundamental physics experiments require argon reduced in 39Ar as well as 42Ar, as well as other rising needs in other scientific fields (e.g., age-dating). With the expanded needs come the...
Dr
Shingo Kazama
(Nagoya University)
9/11/19, 3:30 PM
New technologies
Oral presentation in parallel session
The XENONnT project, the next phase of the XENON program, will feature a new TPC with an active target of ~6 tonnes of Xenon (~4 tonne fiducial) and will implement a series of technological solutions aiming to further suppress the dominant background (BG) sources and boost the physics reach of the experiment. Neutrons are a particularly dangerous BG for direct WIMP dark matter searches; their...
Dr
Koichi Ichimura
(Kamioka Observatory, ICRR, the University of Tokyo)
9/11/19, 3:50 PM
New technologies
Oral presentation in parallel session
Liquid xenon has been used in many modern experiments. The scintillation light of xenon is produced by the de-excitation of dimer state Xe$_{2}^{*}$. The dimer is produced by the direct excitation of xenon atoms or the recombination process between electrons and xenon ions. The dimer has both a singlet and triplet state, each with its own decay time constant. Since the ratio of the singlet to...
