DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
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| Title | 195: ECCD control of 2/1 NTM in ITER q95=3.2 shape | ||
| Name: | Robert J. La Haye ( |
Affiliation: | General Atomics |
| Research Area: | NTM Stabilization | Presentation time: | Not requested | Co-Author(s): | C. Petty, R. Prater, E. Strait |
| Description: | Stabilize 2/1 NTM in low q95 plasma with large value
of rho21. | ||
| Experimental Approach/Plan: | Produce the ITER Scenario 2 with q95=3.2, increase beta until the 2/1 mode occurs and stabilize or keep stable with off-axis ECCD at rho21=0.77. | ||
| Background: | We have stabilized 2/1 in hybrid only and with q95=4.4 typically with rho21=0.66 or so.
Larger rho21 and lower rotation could make this more difficult in ITER. | ||
| Resource Requirements: | 6 gyrotrons aimed at q=2 as ECCD efficiency will be lower at larger rho21. | ||
| Diagnostic Requirements: | Standard. | ||
| Analysis Requirements: | TORAY-GA | ||
| Other Requirements: | -- | ||
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