Jun 24 – 28, 2019
Crowne Plaza Brussels Le Palace
Europe/Zurich timezone

RF Characterisation of HTS-CC Tapes as Alternative Coating for the FCC-hh Beam Screen

Jun 26, 2019, 2:10 PM
20m
Clarity (8th floor)

Clarity

8th floor

Presentation FCC accelerator technologies Special Technologies

Speaker

Patrick Krkotic (Cells)

Description

We are investigating high-temperature superconducting coated conductors (HTS-CCs) as an optional coating material for the beam screen of the FCC-hh, in order to reduce the beam coupling impedance. We focus on the use of shielded Hakki-Coleman resonators to validate the rf performance stemming several key test requirements: design, temperature, magnetic field and power. In our past work, we have proved that in temperature and dc magnetic field conditions close to those in the FCC, HTS surface resistance is significantly lower than that of copper. In this work, we analyse the rf magnetic field amplitude at the HTS surface within the resonator and find that it is comparable to FCC-hh requirements. Furthermore, we have extended our experimental set-up to measure surface reactance. These data can be used to extract HTS penetration depths and depinning frequencies.

Primary authors

Co-authors

Artur Romanov (ICMAB (ES)) Francis Perez (ALBA Synchrotron - CELLS) Joffre Gutierrez Royo (ICMAB - CSIC) Teresa Puig (ICMAB)

Presentation materials