Jul 22 – 26, 2019
Europe/Rome timezone

Technical Performance of a 45cm2 Large Area Photon Calorimeter and Results from a 10gd Surface Search for Light Mass Dark Matter with this Device

Jul 22, 2019, 5:10 PM
Auditorium G. Testori (Milano)

Auditorium G. Testori


Piazza Città di Lombardia, 1, 20124 Milano MI
Oral Presentation Low Temperature Detector Applications Orals LM 004


Samuel Watkins (University of California, Berkeley)


We have designed and tested a large area 11-gram photon detector with 45 cm$^2$ surface area and 3.9 eV energy resolution, employing a TES-based readout on a Si absorber. With a 20 $\mu$s rise time due to the fast collection of athermal phonons, this device significantly surpasses both timing and energy resolution requirements of future neutrinoless double beta decay experiments.

Though not optimized for dark matter searches, this device was operated in collaboration with SuperCDMS in a short exposure light-mass DM search on the surface for 10 gram-days. The results of this search illustrate both the immediate and long term scientific potential of athermal phonon sensor technology for light mass dark matter direct detection.

Student (Ph.D., M.Sc. or B.Sc.) Y
Less than 5 years of experience since completion of Ph.D Y

Primary authors

Bernard Sadoulet (University of California at Berkeley) Bruno Serfass (UC Berkeley) Mr Caleb Fink (University of California, Berkeley) Joseph Camilleri (University of California, Berkeley) Mark Platt (Texas A&M University) Prof. Matt Pyle (University of California, Berkeley) Nader Mirabolfathi (Texas A&M Univ.) Dr Paul Brink (SLAC) Rupak Mahapatra (Texas A&M University) Rusty Harris (Texas A&M Univ.) Samuel Watkins (University of California, Berkeley) SuperCDMS Collaboration Tsuguo Aramaki (SLAC) Yury Kolomensky (UC Berkeley/LBNL)

Presentation materials