9 papers
Microwave surface resistance of Tl-1223 films in a dc magnetic field
Alessandro Magalotti, Andrea Alimenti, Emilio Bellingeri +8
We present first preliminary surface impedance measurements on Tl-1223 films in dc magnetic fields, in view of potential applications for the next generation Future Circular Collid…
RADES axion search results with a High-Temperature Superconducting cavity in an 11.7 T magnet
S. Ahyoune, A. Ãlvarez Melcón, S. Arguedas Cuendis +23
We describe the results of a haloscope axion search performed with an 11.7 T dipole magnet at CERN. The search used a custom-made radio-frequency cavity coated with high-temperatur…
Optimizing Superconducting Nb Film Cavities by Mitigating Medium-Field Q-Slope Through Annealing
B. Abdisatarov, G. Eremeev, H. E. Elsayed-Ali +9
Niobium films are of interest in applications in various superconducting devices, such as superconducting radiofrequency cavities for particle accelerators and superconducting qubi…
Plasma treated metals after H- irradiation and its effect on vacuum breakdown behaviour
C. Serafim, S. Calatroni, F. Djurabekova +9
Vacuum breakdown in accelerator structures is a critical challenge that occurs under high electric fields. In environments subjected to hydrogen ion irradiation or high beam losses…
Effect of surface orientation on blistering of copper under high fluence keV hydrogen ion irradiation
A. Lopez-Cazalilla, C. Serafim, J. Kimari +6
Copper and hydrogen are among the most common elements that are widely used in industrial and fundamental research applications. Copper surfaces are often exposed to hydrogen in th…
Characterising the Surface Resistance of Laser-Treated LHC Beam Screens with the Shielded Pair Method
P. KrkotiÄ, E. Bez, K. Brunner +6
The presence of strong electron clouds in the quadrupole magnetic field regions of the Large Hadron Collider (LHC) leads to considerable heating that poses challenges for the cryog…