Regular Article - Experimental Physics
Final results of CALDER: kinetic inductance light detectors to search for rare events
INFN-Sezione di Roma, 00185, Rome, Italy
2 Consiglio Nazionale delle Ricerche, Istituto di Nanotecnologia (CNR-NANOTEC), c/o Dipartimento di Fisica, Sapienza Università di Roma, 00185, Rome, Italy
3 Dipartimento di Fisica, Università di Genova, 16146, Genoa, Italy
4 INFN-Sezione di Genova, 16146, Genoa, Italy
5 Laboratorio de Física Nuclear y Astropartículas, Universidad de Zaragoza, C/ Pedro Cerbuna 12, 50009, Saragossa, Spain
6 Fundación ARAID, Av. de Ranillas 1D, 50018, Saragossa, Spain
7 Consiglio Nazionale delle Ricerche, Istituto di Fotonica e Nanotecnologie (CNR-IFN), Via Cineto Romano 42, 00156, Rome, Italy
8 Dipartimento di Fisica, Sapienza Università di Roma, 00185, Rome, Italy
Accepted: 13 July 2021
Published online: 21 July 2021
The next generation of bolometric experiments searching for rave events, in particular for the neutrino-less double beta decay, needs fast, high-sensitivity and easy-to-scale cryogenic light detectors. The CALDER project (2014–2020) developed a new technology for light detection at cryogenic temperature. In this paper we describe the achievements and the final prototype of this project, consisting of a , thick silicon substrate coupled to a single kinetic inductance detector made of a three-layer aluminum-titanium-aluminum. The baseline energy resolution is (stat)(syst) eV RMS and the response time is s. These features, along with the natural multiplexing capability of kinetic inductance detectors, meet the requirements of future large-scale experiments.
© The Author(s) 2021
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