DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
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| Title | 458: Massive Gas Injection during Ip Rampdown | ||
| Name: | Tom Jernigan ( |
Affiliation: | Oak Ridge National Laboratory |
| Research Area: | Disruptions | Presentation time: | Not requested | Co-Author(s): | -- |
| Description: | Test MGI mitigation/assimilation for gas injected during Ip rampdowon. | ||
| Experimental Approach/Plan: | Trigger a disruption using one valve of the medusa array, fire the other 5 valves of the array at various times after the thermal quench. Compare mitigation quality and gas assimilation vs delay time. | ||
| Background: | MGI has proven very effective at disruption mitigation in existing tokamaks. However, the model for the gas assimilation is that most of the gas moves into the core during the current re-connection event at the thermal quench. The purpose of this experiment is to investigate MGI efficiency if a disruption is not dedected until the Ip decay begins after the thermal quench. | ||
| Resource Requirements: | 3 beams | ||
| Diagnostic Requirements: | disruption diagnostics and standard plasma diagnostics. Vessel displacement, thermal imaging of floor, and tile current arrays are important. | ||
| Analysis Requirements: | Usual MGI analysis | ||
| Other Requirements: | -- | ||
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