Improvement of beam macropulse properties using slim thermionic cathode in IAE RF gun

被引：0

作者：

Kii, T ^{[1
]}

Miyasako, A ^{[1
]}

Hayashi, S ^{[1
]}

Masuda, K ^{[1
]}

Ohgaki, H ^{[1
]}

Yoshikawa, K ^{[1
]}

Yamazaki, T ^{[1
]}

机构：

[1] Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2004年 / 528卷 / 1-2期

关键词：

free-electron laser; RF gun; electron injector;

D O I：

10.1016/j.nima.2004.04.121

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A long beam macropulse is strongly required for free-electron lasers. RF guns can potentially produce high brightness electron beam using a simple and compact system. However, due to a back-bombardment, a cathode surface is overheated. Thus, it is difficult to maintain a constant beam current and beam energy during a macropulse. The use of a photo cathode with a short-pulsed laser is one of the solutions, but it affects the simplicity and the compactness of the RF guns. We studied a mechanism of back-bombardment and experimentally and numerically found that a low energy component of the back-streaming electrons plays an important role in cathode surface heating. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：408 / 411

页数：4

共 50 条

[1] Beam charge feedback system for thermionic cathode RF-gun
Ohgaki, H.
Kii, T.
Masuda, K.
Yamazaki, T.
Yoshikawa, K.
Zen, H.
2007 IEEE PARTICLE ACCELERATOR CONFERENCE, VOLS 1-11, 2007, : 824 - 826
[2] Improvement of electron beam properties by reducing back-bombardment effects in a thermionic RF gun
Kii, T
Yamane, K
Tometaka, I
Masuda, K
Ohgaki, H
Yoshikawa, K
Yamazaki, T
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 507 (1-2): : 340 - 344
[3] First operation of a thermionic cathode rf gun at NSRRC
Lee, A. P.
Chang, S. S.
Hwang, J. Y.
Lau, W. K.
Liang, C. C.
Luo, G. H.
Yang, T. T.
2007 IEEE PARTICLE ACCELERATOR CONFERENCE, VOLS 1-11, 2007, : 3287 - 3289
[4] A thermionic-cathode RF gun for compact FEL use
Lewellen, JW
Feinstein, J
Pantell, RH
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1997, 393 (1-3): : 447 - 450
[5] X-band thermionic cathode RF gun at UTNL
Fukasawa, A
Kaneyasu, T
Sakamoto, F
Ebina, F
Ogino, H
Uesaka, M
Dobashi, K
Urakawa, J
Higo, T
Akemoto, M
Hayano, H
Sakae, H
Matsuo, K
2005 IEEE PARTICLE ACCELERATOR CONFERENCE (PAC), VOLS 1-4, 2005, : 4061 - 4063
[6] Beam Energy Compensation in a Thermionic RF Gun by Cavity Detuning
Zen, Heishun
Kii, Toshiteru
Masuda, Kai
Kinjo, Ryota
Higashimura, Keisuke
Nagasaki, Kazunobu
Ohgaki, Hideaki
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2009, 56 (03) : 1487 - 1491
[7] Energy-spread compensation of a thermionic-cathode RF gun
Lewellen, JW
PROCEEDINGS OF THE 2003 PARTICLE ACCELERATOR CONFERENCE, VOLS 1-5, 2003, : 2035 - 2037
[8] Experimental study of a multi-cavity RF gun with thermionic cathode
Tang, CX
Lin, YZ
Wu, YM
Wang, YZ
Zhao, XQ
Xie, JL
HIGH ENERGY PHYSICS & NUCLEAR PHYSICS-ENGLISH EDITION, 1997, 21 (02): : 91 - 95
[9] Transient beam loading effects due to back-streaming electrons onto a thermionic cathode in an RF gun
Masuda, K
Horii, T
Amazaki, S
Kii, T
Ohgaki, H
Yamazaki, T
Yoshikawa, K
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 483 (1-2): : 315 - 320
[10] Studies on back-streaming electrons onto a thermionic cathode in an RF gun
Masuda, K
Kii, T
Yamaguchi, T
Toku, H
Yoshikawa, K
Yamazaki, T
INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS, 2001, 14 (1-4) : 163 - 170

← 1 2 3 4 5 →