DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2008 EXPERIMENTAL CAMPAIGN
Login | Review | Submit | Logout | Help
Questions about this website? Contact Andrew LeBlanc Questions about ROF? Contact Chuck Greenfield
| Title | 486: RMP fueling effect on pressure profile and ELMs | ||
| Name: | Jonathan G. Watkins ( |
Affiliation: | Sandia National Laboratories |
| Research Area: | ELM Control & Pedestal Physics | Presentation time: | Not requested | Co-Author(s): | Evans, Osborne, Fenstermacher |
| Description: | Explore the effect of secondary xpt fueling on ELMs and ELM suppression | ||
| Experimental Approach/Plan: | Try to simulate RMP fueling with xpt gas injector. Using the xpt gas fueling injector, inject enough gas in the flux expanded region to reduce the edge Te (and current) while fueling the density at a narrow region in the edge. Use this flux expanded fueling to perturb the pressure profile using drsep and gas flow for control. Experiment with other fueling locations as well. | ||
| Background: | Edge magnetic perturbations enhance particle and energy transport across the plasma boundary into the target plates and walls. The ELM suppression may be linked to the way the plasma gets fueled in this configuration from the recyling particles at the wall and strikepoints. | ||
| Resource Requirements: | icoils
beams xpt gas puff | ||
| Diagnostic Requirements: | visible cameras
IRTV floor probes mid and xpt RCPs DIMEs TV | ||
| Analysis Requirements: | -- | ||
| Other Requirements: | -- | ||
Print this page