First mechanical realization of a tunable dielectric haloscope for the MADMAX axion search experiment

MADMAX, a future experiment to search for axion dark matter, is based on a novel detection concept called the dielectric haloscope. It consists of a booster composed of several dielectric disks positioned with \(\mu\)m precision. A prototype composed of one movable disk was built to demonstrate the...

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Bibliographic Details
Published in:arXiv.org 2024-11
Main Authors: The MADMAX Collaboration, B Ary Dos Santos Garcia, Bergermann, D, Caldwell, A, Dabhi, V, Diaconu, C, Diehl, J, Dvali, G, Egge, J, Ekmedzic, M, Gallo, F, Garutti, E, Heyminck, S, Hubaut, F, Ivanov, A, Jochum, J, Karst, P, Kramer, M, Kreikemeyer-Lorenzo, D, Krieger, C, Leppla-Weber, D, Lindner, A, Maldonado, J, Majorovits, B, Martens, S, Martini, A, E Öz, Pralavorio, P, Raffelt, G, Redondo, J, Ringwald, A, Roset, S, Schaffran, J, Schmidt, A, Steffen, F, Strandhagen, C, Usherov, I, Wang, H, Wieching, G
Format: Article
Language:English
Subjects:
Cryogenic temperature
Dark matter
Dielectric strength
Disks
Hypothetical particles
Magnetic fields
Thermal noise
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Summary:MADMAX, a future experiment to search for axion dark matter, is based on a novel detection concept called the dielectric haloscope. It consists of a booster composed of several dielectric disks positioned with \(\mu\)m precision. A prototype composed of one movable disk was built to demonstrate the mechanical feasibility of such a booster in the challenging environment of the experiment: high magnetic field to convert the axions into photons and cryogenic temperature to reduce the thermal noise. It was tested both inside a strong magnetic field up to 1.6 T and at cryogenic temperatures down to 35K. The measurements of the velocity and positioning accuracy of the disk are shown and are found to match the MADMAX requirements.
ISSN:2331-8422
DOI:10.48550/arxiv.2407.10716