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arxiv: 2010.00169 · v1 · pith:HRHDOPYAnew · submitted 2020-10-01 · 🌌 astro-ph.IM · hep-ex· physics.ins-det· quant-ph

Axion Dark Matter eXperiment: Detailed Design and Operations

R. Khatiwada , D. Bowring , A. S. Chou , A. Sonnenschein , W. Wester , D. V. Mitchell , T. Braine , C. Bartram
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R. Cervantes N. Crisosto N. Du S. Kimes L. J Rosenberg G. Rybka J. Yang D. Will G. Carosi N. Woollett S. Durham L. D. Duffy R. Bradley C. Boutan M. Jones B. H. LaRoque N. S. Oblath M. S. Taubman J. Tedeschi John Clarke A. Dove A. Eddins A. Hashim S. R. O'Kelley S. Nawaz I. Siddiqi N. Stevenson A. Agrawal A. V. Dixit J. R. Gleason S. Jois P. Sikivie N. S. Sullivan D. B. Tanner J. A. Solomon E. Lentz E. J. Daw M. G. Perry J. H. Buckley P. M. Harrington E. A. Henriksen K. W. Murch G. C. Hilton
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classification 🌌 astro-ph.IM hep-exphysics.ins-detquant-ph
keywords axiondarkexperimentmatteramplifiermassnoisequantum
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Axion Dark Matter eXperiment (ADMX) ultra low noise haloscope technology has enabled the successful completion of two science runs (1A and 1B) that looked for dark matter axions in the $2.66$ to $3.1$ $\mu$eV mass range with Dine-Fischler-Srednicki-Zhitnisky (DFSZ) sensitivity Ref. [1,2]. Therefore, it is the most sensitive axion search experiment to date in this mass range. We discuss the technological advances made in the last several years to achieve this sensitivity, which includes the implementation of components, such as state-of-the-art quantum limited amplifiers and a dilution refrigerator. Furthermore, we demonstrate the use of a frequency tunable Microstrip Superconducting Quantum Interference Device (SQUID) Amplifier (MSA), in Run 1A, and a Josephson Parametric Amplifier (JPA), in Run 1B, along with novel analysis tools that characterize the system noise temperature.

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