DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2013 EXPERIMENTAL CAMPAIGN
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| Title | 56: Sawtooth Control | ||
| Name: | Edward Lazarus lazarus@fusion.gat.com | Affiliation: | Oak Ridge National Lab |
| Research Area: | Plasma Control | Presentation time: | Not requested |
| Co-Author(s): | Evans, Luce, Lanctot | ITPA Joint Experiment : | No |
| Description: | Investigate control of the sawtooth, in particular its collapse time, with the application of an m/n=1/1 boundary perturbation as detailed in the miniproposal 2012-99-50 | ITER IO Urgent Research Task : | No |
| Experimental Approach/Plan: | Return to bean/oval sawtooth experiment and observe the effects of the C-coils/I-coils on sawtooth characteristics | ||
| Background: | Recent calculations with VMEC (Lazarus, 2012 IAEA TH/P3-02)show that an equilibrium state can exist with q0<<1 if there is a mn=1/1 boundary perturbation. This has properties similar to
an ideal saturated internal kink. There are enticing points of agreement with experimental observations (ISX-B, TEXTOR, JET, DIII-D). | ||
| Resource Requirements: | standard, as detailed in mp 2012-99-50 | ||
| Diagnostic Requirements: | standard, as detailed in mp 2012-99-50 | ||
| Analysis Requirements: | |||
| Other Requirements: | |||
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