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Title: Broadband microwave characteristics of a novel coaxial gridded hollow cathode argon plasma

Abstract

The interaction between microwave and large area plasma is crucially important for space communication. Gas pressure, input power, and plasma volume are critical to both the microwave electromagnetic wave phase shift and electron density. This paper presents a novel type of large coaxial gridded hollow cathode plasma having a 50 cm diameter and a 40 cm thickness. Microwave characteristics are studied using a microwave measurement system that includes two broadband antennae in the range from 2 GHz to 18 GHz. The phase shift under varying gas pressure and input power is shown. In addition, the electron density n{sub e}, which varies from 1.2 × 10{sup 16} m{sup −3} to 8.7 × 10{sup 16} m{sup −3} under different discharge conditions, is diagnosed by the microwave system. The measured results accord well with those acquired by Langmuir Probe measurement and show that the microwave properties in the large volume hollow cathode discharge significantly depend on the input power and gas pressure.

Authors:
; ; ; ; ;  [1];  [1];  [2];  [3]
  1. Department of Physics, Harbin Institute of Technology, Harbin 150001 (China)
  2. (LEME), China Research Institute of Radio Wave Propagation, Beijing 102206 (China)
  3. National Key Laboratory of Electromagnetic Environment (LEME), China Research Institute of Radio Wave Propagation, Beijing 102206 (China)
Publication Date:
OSTI Identifier:
22597681
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 87; Journal Issue: 8; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANTENNAS; ARGON; DIAGNOSIS; ELECTRON DENSITY; ELECTRONS; GHZ RANGE 01-100; HOLLOW CATHODES; LANGMUIR PROBE; MICROWAVE RADIATION; PHASE SHIFT; PLASMA; THICKNESS

Citation Formats

Gao, Ruilin, Yuan, Chengxun, E-mail: yuancx@hit.edu.cn, E-mail: zhouzx@hit.edu.cn, Jia, Jieshu, Zhou, Zhong-Xiang, E-mail: yuancx@hit.edu.cn, E-mail: zhouzx@hit.edu.cn, Wang, Ying, Wang, Xiaoou, Li, Hui, National Key Laboratory of Electromagnetic Environment, and Wu, Jian. Broadband microwave characteristics of a novel coaxial gridded hollow cathode argon plasma. United States: N. p., 2016. Web. doi:10.1063/1.4960393.
Gao, Ruilin, Yuan, Chengxun, E-mail: yuancx@hit.edu.cn, E-mail: zhouzx@hit.edu.cn, Jia, Jieshu, Zhou, Zhong-Xiang, E-mail: yuancx@hit.edu.cn, E-mail: zhouzx@hit.edu.cn, Wang, Ying, Wang, Xiaoou, Li, Hui, National Key Laboratory of Electromagnetic Environment, & Wu, Jian. Broadband microwave characteristics of a novel coaxial gridded hollow cathode argon plasma. United States. doi:10.1063/1.4960393.
Gao, Ruilin, Yuan, Chengxun, E-mail: yuancx@hit.edu.cn, E-mail: zhouzx@hit.edu.cn, Jia, Jieshu, Zhou, Zhong-Xiang, E-mail: yuancx@hit.edu.cn, E-mail: zhouzx@hit.edu.cn, Wang, Ying, Wang, Xiaoou, Li, Hui, National Key Laboratory of Electromagnetic Environment, and Wu, Jian. Mon . "Broadband microwave characteristics of a novel coaxial gridded hollow cathode argon plasma". United States. doi:10.1063/1.4960393.
@article{osti_22597681,
title = {Broadband microwave characteristics of a novel coaxial gridded hollow cathode argon plasma},
author = {Gao, Ruilin and Yuan, Chengxun, E-mail: yuancx@hit.edu.cn, E-mail: zhouzx@hit.edu.cn and Jia, Jieshu and Zhou, Zhong-Xiang, E-mail: yuancx@hit.edu.cn, E-mail: zhouzx@hit.edu.cn and Wang, Ying and Wang, Xiaoou and Li, Hui and National Key Laboratory of Electromagnetic Environment and Wu, Jian},
abstractNote = {The interaction between microwave and large area plasma is crucially important for space communication. Gas pressure, input power, and plasma volume are critical to both the microwave electromagnetic wave phase shift and electron density. This paper presents a novel type of large coaxial gridded hollow cathode plasma having a 50 cm diameter and a 40 cm thickness. Microwave characteristics are studied using a microwave measurement system that includes two broadband antennae in the range from 2 GHz to 18 GHz. The phase shift under varying gas pressure and input power is shown. In addition, the electron density n{sub e}, which varies from 1.2 × 10{sup 16} m{sup −3} to 8.7 × 10{sup 16} m{sup −3} under different discharge conditions, is diagnosed by the microwave system. The measured results accord well with those acquired by Langmuir Probe measurement and show that the microwave properties in the large volume hollow cathode discharge significantly depend on the input power and gas pressure.},
doi = {10.1063/1.4960393},
journal = {Review of Scientific Instruments},
number = 8,
volume = 87,
place = {United States},
year = {Mon Aug 15 00:00:00 EDT 2016},
month = {Mon Aug 15 00:00:00 EDT 2016}
}