| Autor: |
Pinsker R.I., Austin M.E., Ernst D.R., Garofalo A.M., Grierson B.A., Hosea J.C., Luce T.C., Marinoni A., McKee G.R., Perkins R.J., Petty C.C., Porkolab M., Rost J.C., Schmitz L., Solomon W.M., Taylor G., Turco F. |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
EPJ Web of Conferences, Vol 87, p 02003 (2015) |
| Druh dokumentu: |
article |
| ISSN: |
2100-014X |
| DOI: |
10.1051/epjconf/20158702003 |
| 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 χe increases significantly in the mid-radius region 0.4 |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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