MEDSI2025 - 13th International Conference on Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation

Succesfull repair of a S-Band Cavity

WEP59

17 Sept 2025, 17:00

1h

Poster Session Room (The Loop)

Poster Presentation Free Electron Lasers Wednesday Poster Session

Speaker

Nick Strohmaier (Paul Scherrer Institute)

Description

For this poster presentation, I will present you the entire process for reconstructing and repairing of a defective S-band cavity. The repaired cavity will be used in an Experiment inside the Free Electron Laser (SwissFEL). In the final check we found an error after brazing and we decided to try to fix the cavity before we order new one to save time and costs. The cavity was cleanly separated in two parts and machined. The defective cup segments were replaced by new cups and the S-band Cavity was re-brazed. The repair was a complete success and the cavity can be used in operation.