Quantitative characterization of arc discharge as vacuum interface
Abstract
An arc discharge with channel diameters of 3 mm and 6 mm and lengths between 30mm and 60mm was experimentally investigated for its potential to function as plasma window, i.e., interface vacuum regions of different pressures. In this study, electron temperature of the plasma channel measured spectroscopically varied in the range of 7000K to 15000K, increasing with discharge current while decreasing with gas flow rate. The plasma window had a slightly positive I-V characteristics over the whole range of investigated current 30A–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:
-
- Peking Univ., Beijing (China)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Chinese Academy of Sciences, Lanzhou (China)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1178236
- Report Number(s):
- BNL-107823-2015-JA
Journal ID: ISSN 1070-664X; PHPAEN; R&D Project: KBCH139; 18033; KB0202011
- Grant/Contract Number:
- SC00112704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 21; Journal Issue: 12; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; plasma temperature; viscosity; plasma pressure; high pressure; plasma channeling
Citation Formats
Huang, S., Zhu, K., 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., 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., Lu, Y. R., Wang, S. Z., Hershcovitch, A., Yang, L., and Zhang, X. Y. Fri .
"Quantitative characterization of arc discharge as vacuum interface". United States. https://doi.org/10.1063/1.4903462. https://www.osti.gov/servlets/purl/1178236.
@article{osti_1178236,
title = {Quantitative characterization of arc discharge as vacuum interface},
author = {Huang, S. and Zhu, K. 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 30mm and 60mm was experimentally investigated for its potential to function as plasma window, i.e., interface vacuum regions of different pressures. In this study, electron temperature of the plasma channel measured spectroscopically varied in the range of 7000K to 15000K, increasing with discharge current while decreasing with gas flow rate. The plasma window had a slightly positive I-V characteristics over the whole range of investigated current 30A–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},
journal = {Physics of Plasmas},
number = 12,
volume = 21,
place = {United States},
year = {Fri Dec 19 00:00:00 EST 2014},
month = {Fri Dec 19 00:00:00 EST 2014}
}
Web of Science
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