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Advanced tokamak profile evolution in DIII-D
| Content Provider | Semantic Scholar |
|---|---|
| Author | Murakami, Masakatsu Wade, Michael R. Deboo, James Craig Greenfield, Charles Luce, Tim C. Makowski, M. A. Petty, C. C. Staebler, G. M. Taylor, Tony S. Austin, Max E. Baker, Don R. Budny, Robert Vierling Burrell, Keith H. Casper, T. A. Choi, Maggie Ferron, John R. Garofalo, A. M. Gorelov, Iu. A. Groebner, Richard J. Haye, R. J. La Hyatt, A. W. Jayakumar, Raghavan Kajiwara, Kazuhito Kinsey, J. E. Lao, Lang L. Lohr, John McCune, Douglas Pinsker, Robert Isaac Politzer, Peter Prater, R. H. E. St. John West, W. P. |
| Copyright Year | 2003 |
| Abstract | Using off-axis electron cyclotron current drive (ECCD), self-consistent integrated advanced tokamak operation has been demonstrated on DIII-D [Plasma Physics and Controlled Nuclear Fusion Research, 1986 (International Atomic Energy Agency, Vienna, 1987), Vol. I, p. 159], combining high β (>3%) at high q (qmin>2.0) with good energy confinement (H89∼2.5) and high noninductive current fraction (fBS∼55%,fNI∼90%). Modification of the current profile by ECCD led to internal transport barrier formation even in the presence of type I edge localized modes. Improvements were observed in all transport channels, and increased peaking of profiles led to higher bootstrap current in the core. Separate experiments have shown the ability to maintain a nearly steady-state current profile for up to 1 s with qmin>1.5. Modeling indicates that this favorable current profile can be maintained indefinitely at a higher βN using tools available to the near-term DIII-D program. Modeling and simulation have become essential tools fo... |
| Starting Page | 1691 |
| Ending Page | 1697 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1063/1.1559007 |
| Volume Number | 10 |
| Alternate Webpage(s) | http://web.ornl.gov/~webworks/cppr/y2001/pres/115750.pdf |
| Alternate Webpage(s) | https://doi.org/10.1063/1.1559007 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
