Journal
PHYSICS OF PLASMAS
Volume 23, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4948724
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Funding
- National Magnetic Confinement Fusion Program of China [2015GB110001, 2015GB102000]
- U.S. Department of Energy [DE-FC02-04ER54698, DE-AC52-07NA27344, DE-FG02-08ER54999, DE-AC02-09CH11466, DE-FG02-07ER54917, DE-FG02-06ER54871]
- U.S. Department of Energy (DOE) [DE-FG02-06ER54871] Funding Source: U.S. Department of Energy (DOE)
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Recent DIII-D experiments have increased the normalized fusion performance of the high bootstrap current fraction tokamak regime toward reactor-relevant steady state operation. The experiments, conducted by a joint team of researchers from the DIII-D and EAST tokamaks, developed a fully noninductive scenario that could be extended on EAST to a demonstration of long pulse steady-state tokamak operation. Improved understanding of scenario stability has led to the achievement of very high values of beta(P) and beta(N), despite strong internal transport barriers. Good confinement has been achieved with reduced toroidal rotation. These high beta(p) plasmas challenge the energy transport understanding, especially in the electron energy channel. A new turbulent transport model, named TGLF-SAT1, has been developed which improves the transport prediction. Experiments extending results to long pulse on EAST, based on the physics basis developed at DIII-D, have been conducted. More investigations will be carried out on EAST with more additional auxiliary power to come online in the near term. Published by AIP Publishing.
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