DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2013 EXPERIMENTAL CAMPAIGN
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| Title | 366: Up/down Asymmetric EFC | ||
| Name: | Matthew Lanctot matthew.lanctot@science.doe.gov | Affiliation: | Department of Energy |
| Research Area: | Stability & Disruption Avoidance | Presentation time: | Not requested |
| Co-Author(s): | A. Garofalo | ITPA Joint Experiment : | No |
| Description: | Develop up-down asymmetric error field correction using the I-coil. | ITER IO Urgent Research Task : | No |
| Experimental Approach/Plan: | Start from a H-mode case with n=1 EFC optimized via plasma rotation maximization and then vary upper vs. lower I-coil row amplitudes at fixed phase and note rotation changes. Find maximum rotation. | ||
| Background: | The intrinsic error field and most plasma discharges are up-down asymmetric. Therefore, the optimal error field correction currents are also likely up-down asymmetric. Presently, all existing EFC algorithms are up/down symmetric and up/down asymmetric algorithms have not been investigated systematically. | ||
| Resource Requirements: | All four SPAs | ||
| Diagnostic Requirements: | CER | ||
| Analysis Requirements: | -- | ||
| Other Requirements: | -- | ||
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