Ponente
Descripción
The Canfranc Axion Detection Experiment (CADEx) will search for the axion in the yet unexplored mass range 330-460 micro-eV. Operating in the W-band (75-100 GHz) will combine, for the first time, a cavity haloscope in a strong magnetic field with broadband KIDs arrays to detect the polarization signature of the axion. CADEx will be installed at the mK cryostat of the Canfranc Underground Laboratory (LSC). To achieve the projected sensitivity of CADEx, the key elements of the experiment need to be developed by pushing the performances of the cavities at very short wavelengths (3 mm) and the bandwidth and sensitivities KIDs in the W-band.
This talk introduces the multiple-cavities concept in CADEx and focuses on the development of a single cavity, its link with the horn antenna which connects the cavity with the quasi-optic stage, and its coupling and tuning subsystems, obtaining a frequency range from 90 to 102 GHz with a single cavity. First resonance measurements with a prototype cavity and proof of concept of the tuning system for lower frequencies (X band) will be shown.
