Speaker
Dr
Zong-Kai Liu
(NSRRC)
Description
The purpose of a radio-frequency system in a high-energy accelerator is to provide energy to the particle beam. A RF coupler is necessary to transfer the high power from a RF generator to the cavity. A coupler of coaxial type is a common choice. With high-power operation, it might suffer from multipacting, which is a resonance phenomenon due to re-emission of secondary electrons. Applying a bias voltage between inner and outer conductors of the coaxial coupler might increase or decrease the strength of the multipacting effect. We studied the effect of a bias voltage on multipacting using numerical simulation to track the motion of the electrons. We will present the simulation results and the experimental experience in TPS operation.
Author
Dr
Zong-Kai Liu
(NSRRC)
Co-authors
Dr
Fu-Yu Chang
(NSRRC)
Mr
Lung-Hai Chang
(NSRRC)
Dr
Mei-Hsia Chang
(NSRRC)
Mr
Shian-Wen Chang
Mr
Ling-Jhen Chen
(NSRRC)
Mr
Fu-Tsai Chung
(NSRRC)
Dr
Ming-Chyuan Lin
(NSRRC)
Dr
Chih-Hung Lo
(NSRRC)
Dr
Chaoen Wang
(NSRRC)
Mr
Meng-Shu Yeh
(NSRRC)
Dr
Tsung-Chi Yu
(NSRRC)
