Quantitative characterization of arc discharge as vacuum interface

Huang, S.; Zhu, K.; Lu, Y. R.; Wang, S. Z.; Hershcovitch, A.; Yang, L.; Zhang, X. Y.

doi:10.1063/1.4903462

Title: Quantitative characterization of arc discharge as vacuum interface

Journal Article · Fri Dec 19 00:00:00 EST 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4903462· OSTI ID:1178236

Huang, S. ^[1]; Zhu, K. ^[1]; Lu, Y. R. ^[1];

^[1]; Hershcovitch, A. ^[2]; Yang, L. ^[3]; Zhang, X. Y. ^[3]

Peking Univ., Beijing (China)
Brookhaven National Lab. (BNL), Upton, NY (United States)
Chinese Academy of Sciences, Lanzhou (China)

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.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC00112704

OSTI ID:: 1178236

Report Number(s):: BNL-107823-2015-JA; PHPAEN; R&D Project: KBCH139; 18033; KB0202011

Journal Information:: Physics of Plasmas, Vol. 21, Issue 12; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 5 works

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Characterization of a plasma window as a membrane free transition between vacuum and high pressure Bohlender, B. F.; Michel, A.; Jacoby, J. GSI Helmholtzzentrum fuer Schwerionenforschung, GSI, Darmstadt https://doi.org/10.15120/gsi-2021-00687	text	January 2020

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