Speaker
Description
Since May 2017, an international collaboration of 8 research teams from 7 countries: CEA (France), CERN (Switzerland), INFN/LNL (Italy), HZB and USI (Germany), IEE (Slovakia), RTU (Latvia) and STFC/DL (UK), are working together on better understanding of how to improve the properties of superconducting thin films for RF cavities. The collaboration has been formed as WP15 (Thin Film for Superconducting RF) in the H2020 ARIES project funded by EC.
The systematic study of superconducting thin films covers:
- Cu substrate preparation: polishing with 5 different techniques (EP, SUBU, EP+SUBU, tumbling, laser) in 3 labs (CERN, INFN, RTU),
- Nb, NbN, Nb3Sn and SIS thin film deposition and characterisation in 3
labs (INFN, USI, STFC), - Laser post deposition treatments at RTU,
- DC magnetisation characterisation at IEE, DC magnetic field penetration measurements
at STFC, - and, finally, application of all obtained knowledge on polishing,
deposition and characterisation to the QPR samples for testing the
films at RF conditions (HZB).
The preparation, deposition and characterisation of each sample involves 3-5 partners enhancing the capability of each other and resulting in a more complete analysis of each film.
The talk will give an overview of the collaborative research and will be an introduction to the detailed talks and posters given by the team members.
