DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
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| Title | 421: q95 < 3 Hybrid Plasmas | ||
| Name: | Mickey R. Wade ( |
Affiliation: | General Atomics |
| Research Area: | ITER Demonstration Discharges | Presentation time: | Not requested | Co-Author(s): | -- |
| Description: | Seek to determine ultimate limit of hybrid plasmas in terms of
achieveble fusion performance by operating with q95 ~ 2.8 or lower. | ||
| Experimental Approach/Plan: | Utlizing target plasmas at q95=3 in the ITER shape from the current campaign or target plasmas with q95 < 3 from the 2004 campaign, determine the beta limit and confinement quality of plasmas with q95 < 3. | ||
| Background: | Hybrid studies (really only two attempts) in 2004 showed that betaN ~ 2.8 could be maintained with q95 well below 3 (q95 ~ 2.8). In these cases, G = betaN*h89/q_95^2 ~ 0,7 were maintained for more than 1 sec. Because of the small number of shots, optimization was not done. Success in demonstrating G = 0.7 for several seconds (10 s would be great) would provide additional ammunition for the hybrid as the baseline regime for ITER and make an excellent IAEA viewgraph. | ||
| Resource Requirements: | -- | ||
| Diagnostic Requirements: | -- | ||
| Analysis Requirements: | -- | ||
| Other Requirements: | -- | ||
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