CERN Accelerating science

Article
Report number arXiv:2312.13109
Title Split-cavity tuning of a rectangular axion haloscope operating around 8.4 GHz
Author(s) Golm, Jessica (CERN ; Jena U.) ; García-Barceló, Jose María (Munich, Max Planck Inst.) ; Arguedas Cuendis, Sergio (CERN) ; Calatroni, Sergio (CERN) ; Wuensch, Walter (CERN) ; Döbrich, Babette (Munich, Max Planck Inst.)
Publication 2024-04-09
Imprint 2023-12-20
Number of pages 20
In: Front. Phys. 12 (2024) 1372846
DOI 10.3389/fphy.2024.1372846
Subject category hep-ex ; Particle Physics - Experiment ; physics.ins-det ; Detectors and Experimental Techniques
Abstract The axion haloscope is the currently most sensitive method to probe the vanishingly small coupling of this prominent Dark Matter candidate to photons. To scan a sizeable axion Dark Matter parameter space, the cavities that make up the haloscope need to be tuned efficiently. In this article, we describe a novel technique to tune axion haloscopes around $8.4$ GHz in a purely mechanical manner without the use of dielectrics. We achieve tuning by introducing a gap along the cavity geometry. Losses are added due to the leaking of the field out of the structure only if the gap becomes too large concerning the total width. A tuning range of around $600$ MHz is achieved, depending on the environmental conditions. We present the results of a corresponding prototype and outline prospects to further develop this technique.
Copyright/License publication: © 2024-2025 Golm, García-Barcelo, Arguedas Cuendis, Calatroni, Wuensch and Dobrich (License: CC-BY-4.0)
preprint: (License: CC BY 4.0)



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 Zapis kreiran 2024-06-01, zadnja izmjena 2024-09-10


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