2016 IEEE Power Modulator and High Voltage Conference

Stability of thyratron switching in LCLS linac modulators

6 Jul 2016, 13:30

1h 30m

Twin Peaks (Palace Hotel San Francisco)

Poster Presentation Repetitive Pulsed Power Systems, Repetitive Pulsed Magnetics, Accelerators, Beams, High Power Microwaves, and High Power Pulse Antennas Poster 1-A

Speaker

Dr Andrew Benwell (SLAC)

Description

Building from several years of study, it is determined that the dominant cause of pulse to pulse jitter in LCLS linac modulators is thyratron performance [1]. Without a stabile thyratron, all other sources of jitter are dwarfed. To achieve long term stability in this environment, a highly de-rated off the shelf thyratron was selected to upgrade critical RF stations. After a year of operation, the thyratron has demonstrated its effectiveness in reducing thyratron related jitter in a way that allows for other jitter improvements to be pursued. The thyratron upgrade study is presented in this paper. [1] F.J. Decker, A. Krasnykh, B. Morris, and M. Nguyen, “A Stability of LCLS Linac Modulators” IEEE IPMHVC 2012, San Diego, CA.