Low Radioactivity Techniques (LRT2024)

Session

Crystals Scintillators

2 Oct 2024, 14:30

PAU (Kraków, Poland)

Conveners

Crystals Scintillators

• Vitaly Kudryavtsev (University of Sheffield)

85. Developments, features and perspectives of radiopure crystal scintillators of the Cs2MCl6 family (M = Hf or Zr) to search for rare processes

Alice Leoncini (Università degli Studi di Roma Tor Vergata)

02/10/2024, 14:30

Talk

Recently there has been considerable interest in the development of crystal scintillators of the Cs2MCl6 family of metal hexachlorides (M = Hf or Zr) due to their exceptional scintillating properties. These materials offer high light yield (up to 40000 photons/ MeV), good linearity in the energy response, excellent energy resolution (< 3.5% at 662 keV in the best configuration) and excellent...

69. Production of highly radio-pure NaI(Tl) crystals applied to dark matter search

Claudia Tomei (INFN Sezione di Roma)

02/10/2024, 14:55

Talk

The interest in ultra-high purity, low-background NaI(Tl) crystals for dark matter direct searches has increased in recents years. This is driven by the fact that over the last two decades, the experimental effort to search for particle dark matter in underground laboratories yielded null results with the notable exception of the DAMA/LIBRA experiment at LNGS. DAMA has been observing an annual...

26. Ultra-purification and mass-production of NaI powder for COSINE-200

Olga Gileva (Center for Underground Physics, IBS, Korea)

02/10/2024, 15:20

Talk

The COSINE-200, an upgraded phase of the COSINE-100 experiment, aims to scrutinizingly verify the annual modulation signals observed by the DAMA/LIBRA experiment using 200 kg NaI(Tl) crystals with intrinsic background levels better than those of DAMA/LIBRA. To reach the projected goal, an in-house technology for the successive production of ultra-low background NaI(Tl) detectors is paramount,...