Low-energy calibration of SuperCDMS HVeV cryogenic silicon calorimeters using Compton steps

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90263%2F25%3A00390789" target="_blank" >RIV/68407700:90263/25:00390789 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/jj7w-gkgg" target="_blank" >https://doi.org/10.1103/jj7w-gkgg</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/jj7w-gkgg" target="_blank" >10.1103/jj7w-gkgg</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Low-energy calibration of SuperCDMS HVeV cryogenic silicon calorimeters using Compton steps

Popis výsledku v původním jazyce

Cryogenic calorimeters for low-mass dark matter searches have achieved sub-eV energy resolutions, driving advances in both low-energy calibration techniques and our understanding of detector physics. The energy deposition spectrum of gamma rays scattering off target materials exhibits step-like features, known as Compton steps, near the binding energies of atomic electrons. We demonstrate a successful use of Compton steps for sub-keV calibration of cryogenic silicon calorimeters, utilizing four SuperCDMS High-Voltage eV-resolution detectors operated with 0 V bias across the crystal. This new calibration at 0 V is compared with the established high-voltage calibration using optical photons. The comparison indicates that the detector response at 0 V is about 30% weaker than expected, highlighting challenges in detector response modeling for low-mass dark matter searches.

Název v anglickém jazyce

Low-energy calibration of SuperCDMS HVeV cryogenic silicon calorimeters using Compton steps

Popis výsledku anglicky

Cryogenic calorimeters for low-mass dark matter searches have achieved sub-eV energy resolutions, driving advances in both low-energy calibration techniques and our understanding of detector physics. The energy deposition spectrum of gamma rays scattering off target materials exhibits step-like features, known as Compton steps, near the binding energies of atomic electrons. We demonstrate a successful use of Compton steps for sub-keV calibration of cryogenic silicon calorimeters, utilizing four SuperCDMS High-Voltage eV-resolution detectors operated with 0 V bias across the crystal. This new calibration at 0 V is compared with the established high-voltage calibration using optical photons. The comparison indicates that the detector response at 0 V is about 30% weaker than expected, highlighting challenges in detector response modeling for low-mass dark matter searches.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

—

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review D

ISSN

2470-0010

e-ISSN

2470-0029

Svazek periodika

112

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

"092014-1"-"092014-14"

Kód UT WoS článku

001641121300001

EID výsledku v databázi Scopus

2-s2.0-105026703035