Orateur
Description
The Axion Dark Matter eXperiment, sited at The University of Washington, Seattle, utilises a Sikivie type electromagnetic resonator to search for QCD axion dark matter. Joined in the last couple of years by the CAPP collaboration, ADMX continues to search for local halo axions at levels commensurate with the DFSZ model in a mass range 2.9 to 5.4 micro electron volts. QSHS is a new collaboration that has since early 2023 been commissioning a 10mK dilution refrigerator and 8T solenoidal magnet at The University of Sheffield. The magnet currently houses a copy of the ADMX-Sidecar cavity, tunable using a single copper tuning rod driven directly by attocube rotary piezo motor. The instrument, initially designed as a test stand for low noise electronics and related research and development, has a cavity tunable between 17 and 34 micro electron volts. I shall introduce and give a status report on both instruments, and outline the short term plans for QSHS.
