Application of ECH to the Study of Transport in ITER Baseline Scenario-like Discharges in DIII-D
| Autor: | D.R. Ernst, J. C. Hosea, T.C. Luce, L. W. Schmitz, J.C. Rost, George McKee, W. M. Solomon, Max E Austin, Francesca Turco, R.I. Pinsker, A.M. Garofalo, Alessandro Marinoni, C.C. Petty, Miklos Porkolab, G. Taylor, Brian Grierson, Rory Perkins |
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| Přispěvatelé: | Massachusetts Institute of Technology. Department of Physics, Ernst, Darin R., Marinoni, Alessandro, Porkolab, Miklos, Rost, Jon C. |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | EPJ Web of Conferences, Vol 87, p 02003 (2015) EPJ Web of Conferences |
| Popis: | Recent DIII-D experiments in the ITER Baseline Scenario (IBS) have shown strong increases in fluctuations and correlated reduction of confinement associated with entering the electron-heating-dominated regime with strong electron cyclotron heating (ECH). The addition of 3.2 MW of 110 GHz EC power deposited at ρ~0.42 to IBS discharges with ~3 MW of neutral beam injection causes large increases in low-k and medium-k turbulent density fluctuations observed with Doppler backscatter (DBS), beam emission spectroscopy (BES) and phase-contrast imaging (PCI) diagnostics, correlated with decreases in the energy, particle, and momentum confinement times. Power balance calculations show the electron heat diffusivity χ[subscript e] increases significantly in the mid-radius region 0.4 United States. Dept. of Energy (DE-FC02-04ER54698) United States. Dept. of Energy (DE-FC02-08ER54966) United States. Dept. of Energy (DE-AC03-09CH11466) United States. Dept. of Energy (DE-FG02-04ER54235) United States. Dept. of Energy (DE-FG0289ER53296) United States. Dept. of Energy (DE-FG02-08ER54999) United States. Dept. of Energy (DE-FG02-08ER54984) United States. Dept. of Energy (DE-FG02-04ER54461) |
| Databáze: | OpenAIRE |
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