Optimizing Form Factors of Reentrant Cavities for Low-Frequency Axion Search

ORAL

Abstract

We present the optimized form factors of reentrant cavities of two different sizes designed for searching for axion dark matter in the frequency range 10 - 625 MHz. We show that the form factors can be improved by adding a adjustable extension with smaller radius to a simple cylindrical tuning post. We also show that the form factor could be improved by a reflection symmetric design.

*a. This work was supported by the U.S. Department of Energy through Grants No DE-SC0009800, No. DE-SC0009723, No. DE-SC0010296, No. DE-SC0010280, No. DE-SC0011665, No. DEFG02-97ER41029, No. DE-FG02-96ER40956, No. DEAC52-07NA27344, No. DE-C03-76SF00098 and No. DE-SC0017987. Fermilab is a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. Additional support was provided by the Heising-Simons Foundation and by the Lawrence Livermore National Laboratory and Pacific Northwest National Laboratory LDRD office

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Presenters

  • Yaqi Han

    • York University

Authors

  • Yaqi Han

    • York University