Speaker
Description
The Axion Dark Matter eXperiment (ADMX) first achieved sensitivity to the DFSZ axion using a cavity haloscope coupled to a microstrip SQUID amplifier. ADMX has continued to scan upwards in frequency using the single-cavity approach. The collaboration intends to switch to a multi-cavity setup for future runs; however, the multi-cavity approach is not sustainable long term. I will present an alternative approach that uses a large volume resonator whose axion-coupled mode is determined by a narrow dimension while other dimensions are scaled to recover the volume typically lost at high frequencies. I will discuss the implementation of these resonators in a staged approach to achieve sensitivity to the DFSZ axion between 4 and 20 GHz through the ADMX-VERA program.