Thirteenth CW and High Average Power RF Workshop

Plan for 8kW and 13 kW Klystron Tests and Commissioning at CEBAF

10 Sept 2024, 16:35

25m

Crowne Plaza Downtown, Knoxville, TN

Talk Klystrons Session 4b

Speaker

Xavier Gomez (Thomas Jefferson National Accelerator Facility)

Description

The Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab was upgraded to 12 GeV in 2014, necessitating the use of high-power klystrons. The C75 and C100 cryomodules, which enable the 12 GeV operation, are capable of achieving higher gradients and are powered by 8 kW and 13 kW klystrons, respectively. Over the past decade of operating at 12 GeV, we have observed a decline in power output due to issues with power supplies, mistuned cavities, and other hardware failures. At Jefferson Lab, klystron tubes can be diagnosed on a test stand designed for 8 kW and 13 kW tubes. We will present test stand results for selected tubes that exhibited lower than expected output power, including an attempt to retune a tube.

Presentation materials

CWRF24_submission_20240910.pdf