May 24 – 28, 2021
America/Vancouver timezone

Transition-edge sensor based photon calorimeter for the CUPID experiment

May 27, 2021, 5:48 AM
18m
Parallel session talk Sensors: Solid-state calorimeters Sensors: Solid-state cryogenic detectors

Speaker

Vivek Singh (University of California, Berkeley)

Description

The CUORE Upgrade with Particle ID (CUPID) is a next-generation neutrinoless double-beta decay experiment that will require cryogenic light detectors to improve background suppression by reading out both the heat and light signals from the scintillating crystals. In this work, we describe a light detector based on a novel Ir/Pt bi-layer transition edge sensor for the first time. We have performed a systematic study of improving the electron-phonon coupling of the sensor and, thereby, its responsivity. Our very first devices easily meet CUPID's timing resolution criteria for rejecting pile-up events. The obtained energy resolution is close to CUPID's energy resolution requirement and is at present limited only by excess noise from the cryogenic apparatus. We will present the characterization and modeling of such detectors and the detector components' thermal properties. The study will inform the fabrication of future devices, culminating in the final detector designs.

Primary author

Vivek Singh (University of California, Berkeley)

Co-authors

B Schmidt (Northwestern University, Evanston, IL) Bradford Welliver (Lawrence Berkeley National Laboratory) Brian Fujikawa Clarence Chang (Argonne National Laboratory) Dr Erin Hansen (University of California, Berkeley) G Karapetrov (Department of Physics, Drexel University, Philadelphia, PA) Gensheng Wang (Argonne NAtional Laboratory) J Pearson (Materials Science Division, Argonne National Laboratory, Chicago, IL) Jianjie Zhang (Argonne National Laboratory) Kawtar Hafidi (Argonne National Lab) Kenny Vetter (University of California, Berkeley) L Marini (University of California, Berkeley) M Lisovenko (Materials Science Division, Argonne National Laboratory, Chicago, IL) Dr Mattia Beretta (University of California, Berkeley) Roger Huang (University of California, Berkeley) S Wagaarachchi (University of California, Berkeley) T Polakovic (Department of Physics, Drexel University, Philadelphia, PA) V Novosad (Materials Science Division, Argonne National Laboratory, Chicago, IL) V Yefremenko (High Energy Physics Division, Argonne National Laboratory, Chicago, IL) Whitney Armstrong Yury Kolomensky (Lawrence Berkeley National Laboratory) ZEIN-EDDINE MEZIANI (Argonne National Laboratory)

Presentation materials