| Published Articles | |
| Title | HTS coatings for impedance reduction of beam-induced RF image currents in the FCC |
| Author(s) | Calatroni, Sergio (CERN) |
| Publication | 2015 |
| Number of pages | 5 |
| In: | 17th International Conference on RF Superconductivity, Whistler, Canada, 13 - 18 Sep 2015, pp.TUPB052 |
| DOI | 10.18429/JACoW-SRF2015-TUPB052 |
| Subject category | Accelerators and Storage Rings |
| Accelerator/Facility, Experiment | FCC |
| Abstract | The FCC-hh presently under study at CERN will make use of 16 T superconducting dipoles for achieving 100 TeV p-p center-of-mass collision energy in a 100 km ring collider. A copper coated beam screen, like in the LHC, is envisaged to shield the 1.9 K dipole cold bores from the 28 W/m/beam of synchrotron radiation. Operating temperature should be in the 50 K range, as best compromise temperature in order to minimize the wall-plug power consumption of the cryogenic system. However, preliminary studies indicate that copper at 50 K might not provide low enough beam coupling impedance in the FCC-hh. It has then been proposed to reduce the beam impedance by a thin layer of a High-Temperature Superconductor (HTS), which will thus effectively shield the beam-induced RF image currents. Purpose of this paper is to define the basic requirements for an HTS film in the RF field induced by beam image currents and exposed to a high magnetic field, and to identify the best candidate materials and coating processes. |
| Copyright/License | CC-BY-3.0 |
Corresponding record in: Inspire
记录创建於2017-10-12，最後更新在2017-10-13
