DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
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| Title | 345: Is high-k turbulence a significant contributor to the transport dynamics in the pedestal of H-mode? | ||
| Name: | Terry L. Rhodes ( |
Affiliation: | University of California, Los Angeles |
| Research Area: | Transport | Presentation time: | Not requested | Co-Author(s): | Groebner, Schmitz, McKee, Wang, Zeng. Moyer |
| Description: | This is really a more general H-mode plasma experiment than the title indicates. We propose to characterize to the highest extent possible the plasma behavior leading up to and transitioning to H-mode utilizing the full extent of the upgraded, new, and existing turbulence diagnostics. In particular we will examine the role of the high k ETG scale fluctuations in H-mode however the scope will include low and intermediate k as well (i.e. ITG and TEM scales). We will also examine to the best extent possible the variation of the turbulence and transport in the radial transition region between the steep gradient region and in the flatter internal region. ECH and beam heated H-modes will be utilized to allow the largest diagnostic access. Note that set of companion discharges in hydrogen would likely produce significant information. | ||
| Experimental Approach/Plan: | Plasmas designed for significant diagnostic access. Different H-mode access routes will be investigated, NBI, ECH, USN going to LSN at constant power. The extension to hydrogen plasmas would be very desirable. | ||
| Background: | -- | ||
| Resource Requirements: | 1 day. | ||
| Diagnostic Requirements: | all fluctuation diagnostics, fast profile reflectometers. | ||
| Analysis Requirements: | -- | ||
| Other Requirements: | -- | ||
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