Speaker
Description
Recently there has been considerable interest in the development of crystal scintillators of the Cs$_2$MCl$_6$ family of metal hexachlorides (M = Hf or Zr) due to their exceptional properties: a high light yield (up to 35000 photons/ MeV ), good linearity in the energy response, excellent energy resolution ($< 3.5\%$ at 662 keV in the best configuration) and excellent ability to discriminate the pulse shape (PSD) between $\beta$($\gamma$) and $\alpha$ particles. In particular, an experiment was performed using a Cs$_2$HfCl$_6$ (CHC) crystal scintillator at the STELLA facility of LNGS. Results on the rare nuclear decays in Hf isotopes, such as the $\alpha$ decay to the ground state and the first excited states and the double $\beta$ decay of $^{174}$Hf, are presented here together with the future perspectives of these measurements. We also present a first measurement using two Cs$_2$ZrCl$_6$ crystal scintillators which has been performed at the DAMA/CRYS setup of LNGS. These crystals have been studied in terms of chemical purity and residual radioactive contaminants, scintillation and PSD performances.
Details
Alice Leoncini, PhD student, University of Rome Tor Vergata, Italy, https://www.fisica.uniroma2.it
| Is this abstract from experiment? | Yes |
|---|---|
| Name of experiment and experimental site | DAMA/CRYS, LNGS |
| Is the speaker for that presentation defined? | Yes |
| Internet talk | Maybe |
