Apr 9 – 13, 2018
Beurs van Berlage
Europe/Zurich timezone

RF performance of high temperature superconducting coated conductor (HTS-CC) as beam screen for FCC-hh

Apr 10, 2018, 5:00 PM
1h 30m
Beurs van Berlage

Beurs van Berlage

Damrak 243, 1012 ZJ Amsterdam, Netherlands
Board: 2AMSP11


Patrick Krkotić (ALBA)


The baseline design of the FCC-hh beam screen is based on an octagonal shaped stainless-steel tube coated in its interior with copper. The surface impedance of the beam screen has a strong impact on the beam stability. In the foreseen operating temperature range from 40 K to 60 K the intended coating might not guarantee an impedance sufficiently low for a stable beam. This motivates the exploration of high-temperature superconducting coated conductor (HTS-CC) tapes as an alternative coating approach. It promises a lower surface impedance than copper under the required operating conditions. Therefore, we determine the suitability by validating the RF-performance of existing HTS-CCs as a function of temperature and magnetic fields, using a microwave non-contact dielectric loaded resonator technique and further, by developing a surface impedance measurement facility. First results will be discussed and compared to existing data for conventional metallic coating.

Primary author


Francis Perez (ALBA Synchrotron - CELLS) Montse Pont (CELLS-ALBA) Joffre Gutierrez (ICMAB) Teresa Puig (ICMAB) Artur Romanov (ICMAB) Joan O'Callaghan (UPC)

Presentation materials