Improving the microwave window breakdown threshold by using a fluorinated, periodically patterned surface

被引：18

作者：

Chen, C. H. ^{[1
]}

Chang, C. ^{[1
,2
]}

Liu, W. Y. ^{[1
]}

Sun, J. ^{[1
]}

Huang, H. J. ^{[1
]}

Ke, C. F. ^{[1
]}

Song, W. ^{[1
]}

Teng, Y. ^{[1
]}

Wu, X. L. ^{[1
]}

Xie, J. L. ^{[1
]}

Zhu, M. ^{[1
]}

Li, S. ^{[1
]}

Fang, J. P. ^{[1
]}

Wu, P. ^{[1
,2
]}

Zhang, L. J. ^{[1
]}

机构：

[1] Northwest Inst Nucl Technol, Sci & Technol High Power Microwave Lab, Xian 710024, Peoples R China

[2] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2013年 / 114卷 / 16期

关键词：

MULTIPACTOR; PLASMA;

D O I：

10.1063/1.4826627

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The breakdown at the dielectric window of the high-power microwave (HPM) horn limits the maximum radiation power of HPM system, and keeps the bottle neck of the development of the HPM technology in decades. In this paper, the multi-way diagnostics for the window breakdown at vacuum/dielectric interface are studied in the C-band multi-gigawatt HPM experiment with the atmospheric pressure SF6 environment. The method of using the fluorinated periodic surface is demonstrated to significantly improve the power capacity by fourfold, compared with the flat surface. The threshold for fluorinated periodic surface could be higher than 70 kV/cm for HPM with the frequency 4.3 GHz, and 40 ns pulse width. (C) 2013 AIP Publishing LLC.

引用

页数：6

共 22 条

[1] Phase locking of an S-band wide-gap klystron amplifier with high power injection driven by a relativistic backward wave oscillator [J].

Bai, Xianchen ;

Zhang, Jiande ;

Yang, Jianhua ;

Jin, Zhenxing .

PHYSICS OF PLASMAS, 2012, 19 (12)

[2] Suppression of multipactor discharge on a dielectric surface by an external magnetic field [J].

Cai, Libing ;

Wang, Jianguo ;

Zhu, Xiangqin ;

Wang, Yue ;

Xuan, Chun ;

Xia, Hongfu .

PHYSICS OF PLASMAS, 2011, 18 (07)

[3] Field distribution, HPM multipactor, and plasma discharge on the periodic triangular surface [J].

Chang, C. ;

Liu, G. Z. ;

Fang, J. Y. ;

Tang, C. X. ;

Huang, H. J. ;

Chen, C. H. ;

Zhang, Q. Y. ;

Liang, T. Z. ;

Zhu, X. X. ;

Li, J. W. .

LASER AND PARTICLE BEAMS, 2010, 28 (01) :185-193

[4] DESIGN AND EXPERIMENTS OF THE GW HIGH-POWER MICROWAVE FEED HORN [J].

Chang, C. ;

Zhu, X. X. ;

Liu, G. Z. ;

Fang, J. Y. ;

Xiao, R. Z. ;

Chen, C. H. ;

Shao, H. ;

Li, J. W. ;

Huang, H. J. ;

Zhang, Q. Y. ;

Zhang, Z. -Q. .

PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER, 2010, 101 :157-171

[5]

Chang C., 2009, PHYS PLASMAS, V16

[6] Review of recent theories and experiments for improving high-power microwave window breakdown thresholds [J].

Chang, Chao ;

Liu, Guozhi ;

Tang, Chuanxiang ;

Chen, Changhua ;

Fang, Jinyong .

PHYSICS OF PLASMAS, 2011, 18 (05)

[7] Effect of surface produced secondary electrons on the sheath structure induced by high-power microwave window breakdown [J].

Cheng, Guoxin ;

Liu, Lie .

PHYSICS OF PLASMAS, 2011, 18 (03)

[8] Monte Carlo simulation of multipactor discharge suppressing on grooved dielectric surface [J].

Dong, Y. (dongye0682@sina.com), 2013, Editorial Office of High Power Laser and Particle Beams, P.O. Box 919-805, Mianyang, 621900, China (25) :399-406

[9] Seed electron production from O- ions under high-power microwave excitation [J].

Edmiston, G. F. ;

Neuber, A. A. ;

Krompholz, H. G. ;

Krile, J. T. .

JOURNAL OF APPLIED PHYSICS, 2008, 103 (06)

[10] Optical emission spectroscopy study in the VUV-VIS regimes of a developing low-temperature plasma in nitrogen gas [J].

Fierro, A. ;

Laity, G. ;

Neuber, A. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2012, 45 (49)

← 1 2 3 →