DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
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| Title | 251: Dependence of intrinsic rotation on applied error field | ||
| Name: | Wayne M. Solomon ( |
Affiliation: | Princeton Plasma Physics Laboratory |
| Research Area: | Rotation Physics | Presentation time: | Requested | Co-Author(s): | J. deGrassie, K.H. Burrell |
| Description: | The aim of this experiment is to investigate whether the intrinsic rotation level is influenced by the error field. | ||
| Experimental Approach/Plan: | The I-coil will be used to apply n=3 non-resonant braking (increasing the error field over the optimal correction) and the intrinsic rotation will be measured, either using the traditional blip technique, or if the technique from proposal #249 is successful, this may be used also. The question will be whether the rotation is altered (either slowed or accelerated). Care is required to make sure that any change is not just a result of the non-resonant field altering the pedestal pressure/beta, which would change the intrinsic rotation according to the Rice scaling. | ||
| Background: | Theoretical predictions suggest that the level intrinsic rotation is at least in part influenced by the level of error field and associated torque to the plasma. This experiment will try to address the degree to which the error field sets the intrinsic rotation level. | ||
| Resource Requirements: | Machine Time: 1 day Experiment
Number of neutral beam sources: 5 AMAP gyrotrons | ||
| Diagnostic Requirements: | CER, Mach probe measurement of SOL flows if possible | ||
| Analysis Requirements: | -- | ||
| Other Requirements: | -- | ||
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