Experimental observation of enhanced plasma potential due to unabsorbed fast wave on EAST (doi:10.7910/DVN/GQXFCS)

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Document Description

Citation

Title:

Experimental observation of enhanced plasma potential due to unabsorbed fast wave on EAST

Identification Number:

doi:10.7910/DVN/GQXFCS

Distributor:

Harvard Dataverse

Date of Distribution:

2021-06-28

Version:

2

Bibliographic Citation:

Xinjun Zhang; Lunan Liu; Chengming Qin; Lin, Y.; Ochoukov, R.; Yanping Zhao; Jean Marie, N.; Wukitch, S.; Gong, X.Z.; Wan, B.N.; Song, Y.T.; Shuai Yuan; Hua Yang; Yuzhou Mao; Yan Cheng; Lei Wang; Xu Deng; Gen Chen; Songqing Ju; Kai Zhang; Lanlan Ping, 2021, "Experimental observation of enhanced plasma potential due to unabsorbed fast wave on EAST", https://doi.org/10.7910/DVN/GQXFCS, Harvard Dataverse, V2

Study Description

Citation

Title:

Experimental observation of enhanced plasma potential due to unabsorbed fast wave on EAST

Identification Number:

doi:10.7910/DVN/GQXFCS

Authoring Entity:

Xinjun Zhang; Lunan Liu; Chengming Qin; Lin, Y.; Ochoukov, R.; Yanping Zhao; Jean Marie, N.; Wukitch, S.; Gong, X.Z.; Wan, B.N.; Song, Y.T.; Shuai Yuan; Hua Yang; Yuzhou Mao; Yan Cheng; Lei Wang; Xu Deng; Gen Chen; Songqing Ju; Kai Zhang; Lanlan Ping

Distributor:

Harvard Dataverse

Holdings Information:

https://doi.org/10.7910/DVN/GQXFCS

Study Scope

Keywords:

Physics, actively powered I-port antenna, EAST tokamak, enhanced plasma potential, fast wave field intensity, fast wave rectification, heating efficiency, loading resistance, local fast wave intensity, low parallel wave number, magnetic field line, plasma facing components, slow wave intensity, SOL regions, voltage 100.0 V

Abstract:

An experiment on EAST is used to study the fast wave rectification by only an actively powered I-port antenna. The plasma potential up to 100 V was found in the region that does not map along the magnetic field line to active I-port antenna. This enhancement correlates with the local fast wave intensity. An increase in the loading resistance and heating efficiency was observed at a low parallel wave number. The higher heating efficiency is seen to cause lower unabsorbed fast wave power in the SOL regions. This can cause a decrease in the fast wave field intensity that reaches plasma facing components and can result in a decrease in the plasma potential and slow wave intensity.

Notes:

<a href="http://library.psfc.mit.edu/catalog/reports/2010/19ja/19ja058/abstract.php">PSFC REPORT PSFC/JA-19-58</a><br /><br />This work was supported by DoE grant 6928419.

Methodology and Processing

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This dataset is made available without information on how it can be used. You should communicate with the Contact(s) specified before use.

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19ja058_archival_manuscript.pdf

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