Speaker
Ms
Valentina Novati
(CSNSM)
Description
CUPID (CUORE Upgrade with Particle IDentification) will be a tonne-scale bolometric experiment searching for the neutrinoless double beta decay. CUPID aims to improve CUORE sensitivity to this nuclear transition by isotope enrichment and substantial background reduction. The CUORE limiting background is due to degraded-energy $\alpha$ particles emitted at surfaces close to the detector, that a pure calorimetric measurement - like the one performed by CUORE - is not able to tag. We will present the potential of using the feeble light emitted by TeO$_2$ crystals, used by the CUORE experiment to study the promising isotope $^{130}$Te, to separate the α particles from the signals. In particular we will show the results obtained by a bolometric light detector assisted by the Neganov-Luke effect, which amplifies the weak light signals thanks to an electric field.This device, coupled to a CUORE-size crystal, was able to reject 99.9% of $\alpha$'s with an acceptance of 96.3% of $\beta$ events.
| Session and Location | Monday Session, Poster Wall #75 (Auditorium Gallery Right) |
|---|---|
| Poster included in proceedings: | yes |
Primary author
Ms
Valentina Novati
(CSNSM)
Co-authors
Alain Benoît
(CNRS-Néel)
Alexandre Broniatowski
(CSNSM)
Alexandre Juillard
(IPNL)
Anastasiia Zolotarova
(CEA)
Andrea Giuliani
(CSNSM)
Antoine Cazes
(IPNL)
Bergé Laurent
(CSNSM)
Bernard Paul
(CEA)
Bernhard Siebenborn
(KIT)
Claudia Nones
(CEA)
Corinne Augier
(IPNL)
Denys Poda
(CSNSM)
Emeline Queguiner
(IPNL)
Emiliano Olivieri
(CSNSM)
Eric Armengaud
(CEA)
Evgeny Yakushev
(JINR)
Florence Charlieux
(IPNL)
Hans Kraus
(University of Oxford)
Helene Le Sueur
(CSNSM)
Jules Gascon
(IPNL)
Julien Billard
(IPNL)
Klaus Eitel
(KIT)
Lionel Vagneron
(IPNL)
Louis Dumoulin
(CSNSM)
Marc Weber
(KIT)
Maryvonne De Jesus
(IPNL)
Matthias Kleifges
(KIT)
Matthieu de Combarieu
(CEA)
Maurice Chapellier
(CSNSM)
Michel Gros
(CEA)
Nadine Foerster
(KIT)
Patrick Pari
(CEA)
Philippe Camus
(CNRS-Néel)
Pierre de Marcillac
(CSNSM)
Romain Maisonobe
(IPNL)
Sergey Rozov
(JINR)
Stefanos Marnieros
(CSNSM)
Thierry Redon
(CSNSM)
Valentin Kozlov
(KIT)
Vitaly Kudryavtsev
(University of Sheffield)
Véronique Sanglard
(IPNL)
Xavier-francois Navick
(CEA)
Yong Jin
(Laboratoire de Photonique et de Nanostructures)
