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Title: Quantitative characterization of arc discharge as vacuum interface

Abstract

An arc discharge with channel diameters of 3 mm and 6 mm and lengths between 30 mm and 60 mm was experimentally investigated for its potential to function as plasma window, i.e., interface vacuum regions of different pressures. Electron temperature of the plasma channel measured spectroscopically varied in the range of 7000 K to 15 000 K, increasing with discharge current while decreasing with gas flow rate. That plasma window had a slightly positive I-V characteristics over the whole range of investigated current 30 A–70 A. Measurements of pressure separation capability, which were determined by input current, gas flow rate, discharge channel diameter, and length, were well explained by viscosity effect and “thermal-block” effect. The experimental results of global parameters including temperature, gas flow rate, and voltage had a good agreement with the simulation results calculated by an axis-symmetry Fluent-based magneto-hydrodynamic model.

Authors:
; ;  [1];  [2]; ;  [3]
  1. State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)
  2. Brookhaven National Laboratory, Upton, New York 11973 (United States)
  3. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China)
Publication Date:
OSTI Identifier:
22407956
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 21; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AXIAL SYMMETRY; ELECTRIC CONDUCTIVITY; ELECTRIC DISCHARGES; ELECTRIC POTENTIAL; ELECTRON TEMPERATURE; GAS FLOW; MAGNETOHYDRODYNAMICS; PLASMA; SIMULATION; SPECTROSCOPY

Citation Formats

Huang, S., Zhu, K., E-mail: zhukun@pku.edu.cn, Lu, Y. R., Wang, S. Z., Hershcovitch, A., Yang, L., and Zhang, X. Y. Quantitative characterization of arc discharge as vacuum interface. United States: N. p., 2014. Web. doi:10.1063/1.4903462.
Huang, S., Zhu, K., E-mail: zhukun@pku.edu.cn, Lu, Y. R., Wang, S. Z., Hershcovitch, A., Yang, L., & Zhang, X. Y. Quantitative characterization of arc discharge as vacuum interface. United States. https://doi.org/10.1063/1.4903462
Huang, S., Zhu, K., E-mail: zhukun@pku.edu.cn, Lu, Y. R., Wang, S. Z., Hershcovitch, A., Yang, L., and Zhang, X. Y. 2014. "Quantitative characterization of arc discharge as vacuum interface". United States. https://doi.org/10.1063/1.4903462.
@article{osti_22407956,
title = {Quantitative characterization of arc discharge as vacuum interface},
author = {Huang, S. and Zhu, K., E-mail: zhukun@pku.edu.cn and Lu, Y. R. and Wang, S. Z. and Hershcovitch, A. and Yang, L. and Zhang, X. Y.},
abstractNote = {An arc discharge with channel diameters of 3 mm and 6 mm and lengths between 30 mm and 60 mm was experimentally investigated for its potential to function as plasma window, i.e., interface vacuum regions of different pressures. Electron temperature of the plasma channel measured spectroscopically varied in the range of 7000 K to 15 000 K, increasing with discharge current while decreasing with gas flow rate. That plasma window had a slightly positive I-V characteristics over the whole range of investigated current 30 A–70 A. Measurements of pressure separation capability, which were determined by input current, gas flow rate, discharge channel diameter, and length, were well explained by viscosity effect and “thermal-block” effect. The experimental results of global parameters including temperature, gas flow rate, and voltage had a good agreement with the simulation results calculated by an axis-symmetry Fluent-based magneto-hydrodynamic model.},
doi = {10.1063/1.4903462},
url = {https://www.osti.gov/biblio/22407956}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 12,
volume = 21,
place = {United States},
year = {Mon Dec 15 00:00:00 EST 2014},
month = {Mon Dec 15 00:00:00 EST 2014}
}

Works referencing / citing this record:

Characterization of a plasma window as a membrane free transition between vacuum and high pressure
journal, January 2020


Characterization of a plasma window as a membrane free transition between vacuum and high pressure
text, January 2020