Performance of a SuperCDMS HVeV detector with Sub-eV energy resolution and single charge-sensitivity

Kyle Kennard; Aditi Pradeep; Mason Buchanan; Hope Fu; Aviv Simchony; Qihua Wang; Emanuele Michielin; Taylor Aralis; Elspeth Cudmore; Priscilla Cushman; Miriam Diamond; Enectali Figueroa-Feliciano; Caleb Fink; Simon Harms; Bruce A. Hines; Ziqing Hong; Martin E. Huber; Andrew Kubik; Noah Kurinsky; Rupak Mahapatra; Valentina Novati; Lekhraj Pandey; Pratyush K. Patel; Weigeng Peng; Mark Platt; Ry Pressman-Cyna; Wolfgang Rau; Runze Ren; Tyler Reynolds; James Ryan; Tarek Saab; David Sadek; Benjamin Schmidt; Zoë Smith; Sidney Stevens; Kelly Stifter; Matthew Stukel; Julius Viol; Yongqi Wang; Matthew James Wilson; Betty A. Young; Stefan Zatschler; Hazal Zenger; Ariel Zuñiga-Reyes

doi:10.1016/j.nima.2026.171753

Performance of a SuperCDMS HVeV detector with Sub-eV energy resolution and single charge-sensitivity

Kyle Kennard
, Aditi Pradeep
, Mason Buchanan
, Hope Fu
, Aviv Simchony
, Qihua Wang
, Emanuele Michielin
, Taylor Aralis
, Elspeth Cudmore
, Priscilla Cushman
, Miriam Diamond
, Enectali Figueroa-Feliciano
, Caleb Fink
, Simon Harms
, Bruce A. Hines
, Ziqing Hong
, Martin E. Huber
, Andrew Kubik
, Noah Kurinsky
, Rupak Mahapatra

Valentina Novati, Lekhraj Pandey, Pratyush K. Patel, Weigeng Peng, Mark Platt, Ry Pressman-Cyna, Wolfgang Rau, Runze Ren, Tyler Reynolds, James Ryan, Tarek Saab, David Sadek, Benjamin Schmidt, Zoë Smith, Sidney Stevens, Kelly Stifter, Matthew Stukel, Julius Viol, Yongqi Wang, Matthew James Wilson, Betty A. Young, Stefan Zatschler, Hazal Zenger, Ariel Zuñiga-Reyes

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

Abstract

We present a detailed characterization of a new generation of athermal-phonon single-charge sensitive Si HVeV detectors, the best of which achieved 589 meV ± 5 meV baseline resolution. Our sub-eV energy resolution enables precise measurements of single-photon events and reveal consistent energy losses of 0.92 eV ± 0.02 eV per charge excitation across two facilities. We demonstrate that the noise for these detectors is well described using a standard Transition Edge Sensor noise model. We also measure a nominal phonon collection efficiency of 45% ± 3% (stat.) ± 6% (syst.) in the best performing device, establishing these detectors as the most efficient athermal phonon detectors to date, limited only by intrinsic limitations of quasiparticle generation.

Original language	English (US)
Article number	171753
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	1091
DOIs	https://doi.org/10.1016/j.nima.2026.171753
State	Published - Nov 2026

Bibliographical note

Publisher Copyright:
© 2026

Keywords

Cryogenic detectors
Energy loss
HVeV
Low energy excess
Single charge

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10.1016/j.nima.2026.171753

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Kennard, K., Pradeep, A., Buchanan, M., Fu, H., Simchony, A., Wang, Q., Michielin, E., Aralis, T., Cudmore, E., Cushman, P., Diamond, M., Figueroa-Feliciano, E., Fink, C., Harms, S., Hines, B. A., Hong, Z., Huber, M. E., Kubik, A., Kurinsky, N., ... Zuñiga-Reyes, A. (2026). Performance of a SuperCDMS HVeV detector with Sub-eV energy resolution and single charge-sensitivity. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1091, Article 171753. https://doi.org/10.1016/j.nima.2026.171753

Performance of a SuperCDMS HVeV detector with Sub-eV energy resolution and single charge-sensitivity. / Kennard, Kyle; Pradeep, Aditi; Buchanan, Mason et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 1091, 171753, 11.2026.

Research output: Contribution to journal › Article › peer-review

Kennard, K, Pradeep, A, Buchanan, M, Fu, H, Simchony, A, Wang, Q, Michielin, E, Aralis, T, Cudmore, E, Cushman, P, Diamond, M, Figueroa-Feliciano, E, Fink, C, Harms, S, Hines, BA, Hong, Z, Huber, ME, Kubik, A, Kurinsky, N, Mahapatra, R, Novati, V, Pandey, L, Patel, PK, Peng, W, Platt, M, Pressman-Cyna, R, Rau, W, Ren, R, Reynolds, T, Ryan, J, Saab, T, Sadek, D, Schmidt, B, Smith, Z, Stevens, S, Stifter, K, Stukel, M, Viol, J, Wang, Y, Wilson, MJ, Young, BA, Zatschler, S, Zenger, H & Zuñiga-Reyes, A 2026, 'Performance of a SuperCDMS HVeV detector with Sub-eV energy resolution and single charge-sensitivity', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 1091, 171753. https://doi.org/10.1016/j.nima.2026.171753

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title = "Performance of a SuperCDMS HVeV detector with Sub-eV energy resolution and single charge-sensitivity",

abstract = "We present a detailed characterization of a new generation of athermal-phonon single-charge sensitive Si HVeV detectors, the best of which achieved 589 meV ± 5 meV baseline resolution. Our sub-eV energy resolution enables precise measurements of single-photon events and reveal consistent energy losses of 0.92 eV ± 0.02 eV per charge excitation across two facilities. We demonstrate that the noise for these detectors is well described using a standard Transition Edge Sensor noise model. We also measure a nominal phonon collection efficiency of 45\% ± 3\% (stat.) ± 6\% (syst.) in the best performing device, establishing these detectors as the most efficient athermal phonon detectors to date, limited only by intrinsic limitations of quasiparticle generation.",

keywords = "Cryogenic detectors, Energy loss, HVeV, Low energy excess, Single charge",

author = "Kyle Kennard and Aditi Pradeep and Mason Buchanan and Hope Fu and Aviv Simchony and Qihua Wang and Emanuele Michielin and Taylor Aralis and Elspeth Cudmore and Priscilla Cushman and Miriam Diamond and Enectali Figueroa-Feliciano and Caleb Fink and Simon Harms and Hines, \{Bruce A.\} and Ziqing Hong and Huber, \{Martin E.\} and Andrew Kubik and Noah Kurinsky and Rupak Mahapatra and Valentina Novati and Lekhraj Pandey and Patel, \{Pratyush K.\} and Weigeng Peng and Mark Platt and Ry Pressman-Cyna and Wolfgang Rau and Runze Ren and Tyler Reynolds and James Ryan and Tarek Saab and David Sadek and Benjamin Schmidt and Zo{\"e} Smith and Sidney Stevens and Kelly Stifter and Matthew Stukel and Julius Viol and Yongqi Wang and Wilson, \{Matthew James\} and Young, \{Betty A.\} and Stefan Zatschler and Hazal Zenger and Ariel Zu{\~n}iga-Reyes",

note = "Publisher Copyright: {\textcopyright} 2026",

year = "2026",

month = nov,

doi = "10.1016/j.nima.2026.171753",

language = "English (US)",

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journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

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T1 - Performance of a SuperCDMS HVeV detector with Sub-eV energy resolution and single charge-sensitivity

AU - Kennard, Kyle

AU - Pradeep, Aditi

AU - Buchanan, Mason

AU - Fu, Hope

AU - Simchony, Aviv

AU - Wang, Qihua

AU - Michielin, Emanuele

AU - Aralis, Taylor

AU - Cudmore, Elspeth

AU - Cushman, Priscilla

AU - Diamond, Miriam

AU - Figueroa-Feliciano, Enectali

AU - Fink, Caleb

AU - Harms, Simon

AU - Hines, Bruce A.

AU - Hong, Ziqing

AU - Huber, Martin E.

AU - Kubik, Andrew

AU - Kurinsky, Noah

AU - Mahapatra, Rupak

AU - Novati, Valentina

AU - Pandey, Lekhraj

AU - Patel, Pratyush K.

AU - Peng, Weigeng

AU - Platt, Mark

AU - Pressman-Cyna, Ry

AU - Rau, Wolfgang

AU - Ren, Runze

AU - Reynolds, Tyler

AU - Ryan, James

AU - Saab, Tarek

AU - Sadek, David

AU - Schmidt, Benjamin

AU - Smith, Zoë

AU - Stevens, Sidney

AU - Stifter, Kelly

AU - Stukel, Matthew

AU - Viol, Julius

AU - Wang, Yongqi

AU - Wilson, Matthew James

AU - Young, Betty A.

AU - Zatschler, Stefan

AU - Zenger, Hazal

AU - Zuñiga-Reyes, Ariel

PY - 2026/11

Y1 - 2026/11

N2 - We present a detailed characterization of a new generation of athermal-phonon single-charge sensitive Si HVeV detectors, the best of which achieved 589 meV ± 5 meV baseline resolution. Our sub-eV energy resolution enables precise measurements of single-photon events and reveal consistent energy losses of 0.92 eV ± 0.02 eV per charge excitation across two facilities. We demonstrate that the noise for these detectors is well described using a standard Transition Edge Sensor noise model. We also measure a nominal phonon collection efficiency of 45% ± 3% (stat.) ± 6% (syst.) in the best performing device, establishing these detectors as the most efficient athermal phonon detectors to date, limited only by intrinsic limitations of quasiparticle generation.

AB - We present a detailed characterization of a new generation of athermal-phonon single-charge sensitive Si HVeV detectors, the best of which achieved 589 meV ± 5 meV baseline resolution. Our sub-eV energy resolution enables precise measurements of single-photon events and reveal consistent energy losses of 0.92 eV ± 0.02 eV per charge excitation across two facilities. We demonstrate that the noise for these detectors is well described using a standard Transition Edge Sensor noise model. We also measure a nominal phonon collection efficiency of 45% ± 3% (stat.) ± 6% (syst.) in the best performing device, establishing these detectors as the most efficient athermal phonon detectors to date, limited only by intrinsic limitations of quasiparticle generation.

KW - Cryogenic detectors

KW - Energy loss

KW - HVeV

KW - Low energy excess

KW - Single charge

UR - https://www.scopus.com/pages/publications/105042254701

UR - https://www.scopus.com/pages/publications/105042254701#tab=citedBy

U2 - 10.1016/j.nima.2026.171753

DO - 10.1016/j.nima.2026.171753

M3 - Article

AN - SCOPUS:105042254701

SN - 0168-9002

VL - 1091

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

M1 - 171753

ER -

Performance of a SuperCDMS HVeV detector with Sub-eV energy resolution and single charge-sensitivity

Abstract

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Keywords

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