DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
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| Title | 358: Te/Ti dependence of low, intermediate and high k turbulence | ||
| Name: | Terry L. Rhodes ( |
Affiliation: | University of California, Los Angeles |
| Research Area: | Transport | Presentation time: | Not requested | Co-Author(s): | McKee, Peebles, Schmitz, G.Wang |
| Description: | Both analytic and numerical results indicate that ETG and ITG turbulence levels should respond in opposite manners as the ratio Te/Ti is varied. We will test this utilizing the full range of turbulence and other diagnostics available on DIII-D. This is a continuation of previous work in this area with the important addition of measuring the turbulence response over a very large k range as well as with the low k CECE temperature fluctuation system. Previous experiments on DIII-D have found modest changes in the low k turbulence and chi_i with more substantial changes in chi_e. This could be explained by increased transport due to TEM and ETG scale turbulence. | ||
| Experimental Approach/Plan: | ECH heating will be applied to L-mode plasmas. co and counter NBI will be utilized to match plasma conditions (especially rotation and Er) as closely as possible. | ||
| Background: | -- | ||
| Resource Requirements: | ECH | ||
| Diagnostic Requirements: | all fluctuation diagnostics. | ||
| Analysis Requirements: | -- | ||
| Other Requirements: | -- | ||
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