Axion Haloscope Using an 18 T High Temperature Superconducting Magnet

Understand

We report details on the axion dark matter search experiment that uses the innovative technologies of a High-Temperature Superconducting (HTS) magnet and a Josephson Parametric Converter (JPC).

• An 18 T HTS solenoid magnet is developed for this experiment.
• The JPC is used as the first stage amplifier to achieve a near quantum-limited low-noise condition.
• The first dark matter axion search was performed with the 18 T axion haloscope.