Cavity design for high-frequency axion dark matter detectors

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

doi:10.1063/1.4938164

Cavity design for high-frequency axion dark matter detectors

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

Authors

I Stern¹, A A Chisholm¹, J Hoskins¹, P Sikivie¹, N S Sullivan¹, D B Tanner¹, G Carosi², K van Bibber³

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.