Calibration and performance of germanium high voltage detectors for SuperCDMS SNOLAB

Author First name, Last name, Institution

• M. F. Albakry, The University of British Columbia
• I. Alkhatib, University of Toronto
• D. Alonso-González, Universidad Autónoma de Madrid
• J. Anczarski, Kavli Institute for Particle Astrophysics and Cosmology
• T. Aralis, Kavli Institute for Particle Astrophysics and Cosmology
• T. Aramaki, Northeastern University
• A. Ashtari Esfahani, TRIUMF
• I. Ataee Langroudy, Texas A&M University
• R. Bhattacharyya, Texas A&M University
• A. J. Biffl, Texas A&M University
• P. L. Brink, Kavli Institute for Particle Astrophysics and Cosmology
• M. Buchanan, University of Toronto
• R. Bunker, Creighton Mine #9
• B. Cabrera, Kavli Institute for Particle Astrophysics and Cosmology
• R. Calkins, Southern Methodist University
• R. A. Cameron, Kavli Institute for Particle Astrophysics and Cosmology
• P. Camus, Queen’s University
• C. Cartaro, Kavli Institute for Particle Astrophysics and Cosmology
• D. G. Cerdeño, Universidad Autónoma de Madrid
• Y. Y. Chang, University of California, Berkeley
• M. Chaudhuri, Homi Bhabha National Institute
• J. H. Chen, Texas A&M University
• R. Chen, Northwestern University
• J. Cooley, Creighton Mine #9
• J. Corbett, Queen’s University
• P. Cushman, College of Science and Engineering
• R. Cyna, University of Toronto
• S. Das, Homi Bhabha National Institute

Document Type

Article

Source of Publication

Astroparticle Physics

Publication Date

9-9-2026

Abstract

As SuperCDMS SNOLAB is getting ready to search for low mass dark matter particles, using cryogenic Ge and Si detectors, a set of six of the new SuperCDMS High Voltage (HV) detectors (four Ge and two Si) were tested in the Cryogenic Underground TEst facility (CUTE) at SNOLAB. This provided the first opportunity to gain experience with this new detector type and assess their performance thoroughly under low background conditions. Here we describe the SuperCDMS HV detector concept and discuss some of the newly developed analysis methods and approaches. Focusing on the Ge detectors, we investigate the detector performance under voltage bias (up to 90 V), exercise the low energy (keV to sub-keV range) calibration based on the electron capture peaks generated by the decay of ⁷¹Ge, assess the detector resolution, and demonstrate the unexpected (and encouraging) ability of these detectors to also measure high energy interactions in the hundreds of keV range with good resolution (better than 3% at 356 keV).

DOI Link

10.1016/j.astropartphys.2026.103293

ISSN

0927-6505

Publisher

Elsevier BV

Volume

184

Disciplines

Engineering

Keywords

Calibration, Cryogenic detectors, CUTE, Dark matter, NTL effect, SNOLAB, SuperCDMS

Scopus ID

105050235450

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License

Recommended Citation

Albakry, M. F.; Alkhatib, I.; Alonso-González, D.; Anczarski, J.; Aralis, T.; Aramaki, T.; Esfahani, A. Ashtari; Langroudy, I. Ataee; Bhattacharyya, R.; Biffl, A. J.; Brink, P. L.; Buchanan, M.; Bunker, R.; Cabrera, B.; Calkins, R.; Cameron, R. A.; Camus, P.; Cartaro, C.; Cerdeño, D. G.; Chang, Y. Y.; Chaudhuri, M.; Chen, J. H.; Chen, R.; Cooley, J.; Corbett, J.; Cushman, P.; Cyna, R.; and Das, S., "Calibration and performance of germanium high voltage detectors for SuperCDMS SNOLAB" (2026). All Works. 8414.
https://zuscholars.zu.ac.ae/works/8414

Indexed in Scopus

yes

Open Access

yes

Open Access Type

Hybrid: This publication is openly available in a subscription-based journal/series