Optimization of High-Sensitivity SQUID Gradiometer for ARIADNE at CAPP

Violeta Gkika*, Younggeun Kim, Andrei Matlashov, Yun Chang Shin, Yannis Semertzidis, Robin Cantor, Chloe Lohmeyer, Nancy Aggarwal, Andrew Geraci

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

ARIADNE (Axion Resonant InterAction Detection Experiment) is a table-top experiment that intends to search for QCD axions from exotic spin-dependent interactions mediated by axion between nuclei at sub-mm range. This experiment includes a non-magnetic mass to source the axion field, and a dense ensemble of hyper-polarized 3He nuclei to detect the axion field with nuclear-magnetic-resonance (NMR)-based method. The expected NMR signal from the interaction could be easily buried in the noise spectrum of the magnetometer, especially in a frequency range (~ 100 Hz) where the interaction signal is supposed to exist. In this work, we report optimization of SQUID gradiometer for ARIADNE including noise spectrum measurement.

Original languageEnglish (US)
Pages (from-to)386-392
Number of pages7
JournalJournal of Low Temperature Physics
Volume216
Issue number1-2
DOIs
StatePublished - Jul 2024

Keywords

  • ARIADNE
  • Axions
  • He
  • NMR
  • SQUID

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Condensed Matter Physics

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