Experimental observation of enhanced plasma potential due to unabsorbed fast wave on EASTdoi:10.7910/DVN/GQXFCSHarvard Dataverse2021-06-282Xinjun 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, V2Experimental observation of enhanced plasma potential due to unabsorbed fast wave on EASTdoi:10.7910/DVN/GQXFCSXinjun 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 PingHarvard DataversePhysicsactively powered I-port antennaEAST tokamakenhanced plasma potentialfast wave field intensityfast wave rectificationheating efficiencyloading resistancelocal fast wave intensitylow parallel wave numbermagnetic field lineplasma facing componentsslow wave intensitySOL regionsvoltage 100.0 VAn 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.<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.This dataset is made available without information on how it can be used. You should communicate with the Contact(s) specified before use.19ja058_archival_manuscript.pdfapplication/pdf