DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
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| Title | 212: Burn control simulation | ||
| Name: | Pete Politzer ( |
Affiliation: | General Atomics |
| Research Area: | General PCO | Presentation time: | Not requested | Co-Author(s): | -- |
| Description: | Study the evolution and stationary state of a plasma with power input dependent on plasma parameters (e.g., beta^2 to simulate an alpha source). Develop methods to control the operating point. | ||
| Experimental Approach/Plan: | Regulate a portion of the power input to the DIII-D plasma to be proportional to the equivalent fusion power, Palpha~n^2*f(Ti). The remainder of the power is used in part for steady auxiliary heating and in part for feedback control of beta and of the operating point (i.e., maintain constant Palpha) in the presence of perturbations such as ELMs, sawteeth, MHD instabilities, etc. Also examine burn control using fueling and pumping to modify the fuel ion mix, impurity radiation, and average density. | ||
| Background: | It may be desirable to operate a burning plasma at a sub-ignited operating point, which will probably be unstable to temperature and power excursions. DIII-D now has the capabilities to start work on the control of the operating point. | ||
| Resource Requirements: | -- | ||
| Diagnostic Requirements: | -- | ||
| Analysis Requirements: | -- | ||
| Other Requirements: | -- | ||
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