CALDER: Cryogenic light detectors for background-free searches

Journal Article · Mon Aug 17 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4928011· OSTI ID:22488726

Cardani, L. ^[1]; Bellini, F.; Casali, N.; Coppolecchia, A.; Cosmelli, C.; Cruciani, A.; Vignati, M. ^[2]; Castellano, M. G. ^[3]; Colantoni, I. ^[4]; Di Domizio, S. ^[5]; Tomei, C. ^[6]

---

1. Dipartimento di Fisica - Sapienza Università di Roma, Roma - Italy and Physics Department, Princeton University, Princeton, NJ (United States)
2. Dipartimento di Fisica - Sapienza Università di Roma and INFN - Sezione di Roma, Roma - Italy (Italy)
3. Istituto di Fotonica e Nanotecnologie - CNR, Roma - Italy (Italy)
4. Dipartimento di Fisica - Sapienza Università di Roma (Italy)
5. Dipartimento di Fisica, Università di Genova, Genova - Italy and INFN Sezione di Genova, Genova - Italy (Italy)
6. INFN - Sezione di Roma, Roma - Italy (Italy)

The development of background-free detectors is essential for experiments searching for rare events. Bolometers, that are among the most competitive devices for the study of neutrino-less double beta decay (0νDBD) and Dark Matter interactions, suffer from the absence of techniques that allow to identify the nature of the interacting particles. This limit can be overcome by coupling the bolometer to an independent device for the measurement of the light emitted by interactions, as the combined read-out of the bolometric and light signals allows to identify and reject particles different from those of interest. CUORE, the most advanced bolometric experiment for 0νDBD searches, could disentangle the electrons produced by 0νDBD from the dangerous background due to α particles, by measuring the (tiny) Cherenkov light emitted by electrons and not by α’s. LUCIFER, a project based on ZnSe scintillating bolometers for the study of {sup 82}Se 0νDBD, would be competitive also in the search of Dark Matter interactions if equipped with light detectors that allow to distinguish and reject the background due to electrons and γ’s. These advances require cryogenic detectors characterized by noise lower than 20 eV, large active area, wide temperature range of operation, high radio-purity and ease in fabricating hundreds of channels. The CALDER collaboration aims to develop such detectors by exploiting the superb energy resolution and natural multiplexed read-out provided by Kinetic Inductance Detectors.

• OSTI ID: 22488726
• Journal Information: AIP Conference Proceedings, Vol. 1672, Issue 1; Conference: LRT 2015: 5. international workshop in low radioactivity techniques, Seattle, WA (United States), 18-20 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOLOMETERS
DOUBLE BETA DECAY
ELECTRONS
ENERGY RESOLUTION
INDUCTANCE
MULTIPARTICLE SPECTROMETERS
NEUTRINOS
NONLUMINOUS MATTER
PARTICLE IDENTIFICATION
READOUT SYSTEMS
SCINTILLATION COUNTERS
SELENIUM 82
VISIBLE RADIATION
ZINC SELENIDES