Journal
NUCLEAR FUSION
Volume 53, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0029-5515/53/2/023004
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Funding
- EAST operation and diagnostics group
- National Magnetic confinement Fusion Science Programme [2010GB110000, 2009GB107001, 2011GB107001, 2011GB101001, 2011GB107003, 2012GB101001]
- National Natural Science Foundation of China [10725523, 10721505, 11105179, 10928509, 10990212, 11075182, 10975155, 11175208]
- Chinese Academy of Sciences [Y05FCQ0126]
- JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NSFC) [11261140328]
- US DoE [DE-AC02-09CH11466, DE-FC02-99ER54512]
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Deuterium high-confinement (H-mode) plasmas, lasting up to 3.45 s, have been generated in the EAST by ion cyclotron range of frequency (ICRF) heating. H-mode access was achieved by coating the molybdenum-tiled first wall with lithium to reduce the hydrogen recycling from the wall. H-mode plasmas with plasma currents between 0.4 and 0.6 MA and axial toroidal magnetic fields between 1.85 and 1.95 T were generated by 27 MHz ICRF heating of deuterium plasma with hydrogen minority. The ICRF input power required to access the H-mode was 1.6-1.8 MW. The line-averaged density was in the range (1.83-2.3) x 10(19) m(-3). 200-500 Hz type-III edge localized mode activity was observed during the H-mode phase. The H-mode confinement factor, H-98IPB(y, 2), was similar to 0.7.
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