Speaker
Mr
Konstantin Torgasin
(Graduate School of Energy Science, Kyoto University)
Description
Some infrared FEL facilities apply thermionic RF guns due to their advantage of compactness and cost effectiveness as compared to RF photocathode electron guns. Other remarkable advantages are the long lifetime and low vacuum condition requirements. On the other hand thermionic RF guns are suffering from back-bombardment phenomena, which limits the bunch charge and macro-pulse duration. In order to overcome this disadvantage a novel configuration named as triode-type thermionic RF gun, which has an additional small pre-bunching cavity around the cathode, was developed at Institute of Advanced Energy (IAE), Kyoto University. The triode concept has already been proved by numerical simulation. For a proof of principle experiment, a quarter wave pre-bunching cavity was fabricated. The cold test of the quarter wave pre-bunching cavity at high and low RF power has been completed. In this work we report results of hot test of the cavity.
Primary author
Mr
Konstantin Torgasin
(Graduate School of Energy Science, Kyoto University)
Co-authors
Dr
Heishun Zen
(Institute of Advanced Energy, Kyoto University)
Mr
Heni Negm
(Graduate School of Energy Science, Kyoto University)
Prof.
Hideaki Ohgaki
(Institute of Advanced Energy, Kyoto University)
Dr
Kai Masuda
(Institute of Advanced Energy, Kyoto University)
Prof.
Kazunobu Nagasaki
(Institute of Energy Science, Kyoto University)
Mr
Kenta Mishima
(Graduate School of Energy Science, Kyoto University)
Kyohei Yoshida
(Graduate School of Energy Science, Kyoto University)
Mr
Mohamed Omer
(Graduate School of Energy Science, Kyoto University)
Mr
Motoharu Inukai
(Graduate School of Energy Science, Kyoto University)
Mr
Takeshi Nogi
(Graduate School of Energy Science, Kyoto University)
Dr
Toshiteru Kii
(Institute of Energy Science, Kyoto University)
