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Split-cavity tuning of a rectangular axion haloscope operating around 8.4 GHz
- Source :
- Frontiers in Physics, Vol 12 (2024)
- Publication Year :
- 2024
- Publisher :
- Frontiers Media S.A., 2024.
-
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. A quality factor reduction of less than 20% is achieved experimentally for a tuning range of around 600 MHz at room temperature and at cryogenic temperatures for around 300 MHz. A larger tuning range would require an improved alignments mechanism. We present the results of a corresponding prototype and outline prospects to further develop this technique.
- Subjects :
- axion
haloscope
tuning
cryogenics
dark matter
Physics
QC1-999
Subjects
Details
- Language :
- English
- ISSN :
- 2296424X
- Volume :
- 12
- Database :
- Directory of Open Access Journals
- Journal :
- Frontiers in Physics
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.535888a78efa45a9be481592ce9b1f99
- Document Type :
- article
- Full Text :
- https://doi.org/10.3389/fphy.2024.1372846