RF properties of superconductors (SC) in high magnetic fields have recently become of great interest in view of their applications in large experiments in fundamental physics. Indeed, the quantum sensing of dark matter axions [1] and other elusive signals such as high frequency gravitational waves (GW) [2], or the beam screen for the CERN Future Circular Collider (FCC) [3], can greatly benefit...
The development of simpler, compact Superconducting RF (SRF) systems represents a new research thrust in accelerator science. These compact accelerators rely on advancements made to both Nb3Sn SRF cavities and commercial cryocoolers, which together allow to get rid of the operational requirement for liquid cryogenics. This approach to SRF cavity operation, based on novel conduction cooling...