Split-cavity tuning of a rectangular axion haloscope operating around 8.4 GHz
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2023
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866909523003834368 |
|---|---|
| author | Golm, Jessica García-Barceló, Jose María Cuendis, Sergio Arguedas Calatroni, Sergio Wuensch, Walter Döbrich, Babette |
| author_facet | Golm, Jessica García-Barceló, Jose María Cuendis, Sergio Arguedas Calatroni, Sergio Wuensch, Walter Döbrich, Babette |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_13109 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Split-cavity tuning of a rectangular axion haloscope operating around 8.4 GHz Golm, Jessica García-Barceló, Jose María Cuendis, Sergio Arguedas Calatroni, Sergio Wuensch, Walter Döbrich, Babette Instrumentation and Detectors High Energy Physics - Experiment 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. |
| title | Split-cavity tuning of a rectangular axion haloscope operating around 8.4 GHz |
| topic | Instrumentation and Detectors High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2312.13109 |