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Rev Sci Instrum. 2015 Dec;86(12):123305. doi: 10.1063/1.4938164.

Cavity design for high-frequency axion dark matter detectors.

The Review of scientific instruments

I Stern, A A Chisholm, J Hoskins, P Sikivie, N S Sullivan, D B Tanner, G Carosi, K van Bibber

Affiliations

  1. Department of Physics, University of Florida, Gainesville, Florida 32611, USA.
  2. Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
  3. Department of Nuclear Engineering, University of California, Berkeley, California 94720, USA.

PMID: 26724020 DOI: 10.1063/1.4938164

Abstract

In an effort to extend the usefulness of microwave cavity detectors to higher axion masses, above ∼8 μeV (∼2 GHz), a numerical trade study of cavities was conducted to investigate the merit of using variable periodic post arrays and regulating vane designs for higher-frequency searches. The results show that both designs could be used to develop resonant cavities for high-mass axion searches. Multiple configurations of both methods obtained the scanning sensitivity equivalent to approximately 4 coherently coupled cavities with a single tuning rod.

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