DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
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| Title | 442: Rho* scaling of the LH threshold | ||
| Name: | T. C. Luce ( |
Affiliation: | General Atomics |
| Research Area: | Transport | Presentation time: | Not requested | Co-Author(s): | -- |
| Description: | Present information shows a gyro-Bohm scaling of the H-mode energy confinement and a Goldston scaling of the LH threshold power. This implies the loss power in H mode will be insufficient to maintain H mode below some rho*. | ||
| Experimental Approach/Plan: | Measure the LH threshold power rho* scaling by carrying out rho* scans at different beta values. At some low beta, the high rho* power will be sufficient to have good H-mode confinement, while at the low rho* point, the edge will collapse if the gyro-Bohm power is applied. This will answer both the rho* scaling of the LH threshold and the margin above the LH threshold power that is required for good H mode confinement. | ||
| Background: | -- | ||
| Resource Requirements: | -- | ||
| Diagnostic Requirements: | -- | ||
| Analysis Requirements: | -- | ||
| Other Requirements: | -- | ||
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