Near term plans for ADMX Run 1D Operations
ORAL
Abstract
The Axion Dark Matter eXperiment (ADMX) searches for primordial ultra-light (few micro-eV) mass axions by resonantly converting them into detectable microwave photons in the presence of a high (7.6 Tesla) static magnetic field. ADMX recently completed run 1C with sensitivity up to 1.02 GHz. In order to reach higher masses both the microwave cavity and quantum amplifier chain need to be replaced. In this talk I will outline the design and testing of the new cavity system for the following run 1D, which will have sensitivity up to 1.36 GHz. I will also discuss parallel testing of the quantum amplifiers and planning improvements to the experimental system as we prepare for continuing the search starting summer of 2023.
*This work is supported by U.S. DOE 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 managed by Fermi Research Alliance, LLC (FRA), under Contract No. DE-AC02-07CH11359. Additional support was provided by the Heising-Simons Foundation and by the LLNL and PNNL LDRD office. U. of Western Australia participation funded by the ARC Centre of Excellence for Engineered Quantum Systems, CE170100009, and Dark Matter Particle Physics, CE200100008.
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Presenters
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Nick Du
- Lawrence Livermore Natl Lab