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 | 157: ELM pacing with small pellets | ||
| Name: | Larry R. Baylor ( |
Affiliation: | Oak Ridge National Laboratory |
| Research Area: | ELM Control & Pedestal Physics | Presentation time: | Requested | Co-Author(s): | T.Jernigan, M. Fenstermacher |
| Description: | This experiment is to use the pellet dropper installed on DIII-D to trigger rapid small ELMs in order to test this mode of operation for ITER. | ||
| Experimental Approach/Plan: | Drop pellets from the dropper into ELMing H-mode discharges at higher rates than the normal ELM rate and compare ELM characteristics with and without the pellets. | ||
| Background: | ITER needs ELM control to limit energy on first wall from ELMs to 1 MJ per event. Pellet ELM triggering is a possible technique to limit the ELM energy per event by forcing the ELMs to occur at a high frequency. Scenarios based on this technique have been demonstrated on AUG for short durations. Further testing and experiments with this technique are needed extrapolate to ITER. | ||
| Resource Requirements: | -- | ||
| Diagnostic Requirements: | IR divertor camera
Fast Camera Pellet photodiode | ||
| Analysis Requirements: | -- | ||
| Other Requirements: | -- | ||
Print this page