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Title 140: Pellet pacing of ELMs in low toroidally rotating plasmas
Name:Punit Gohil () Affiliation:General Atomics
Research Area:ELM Control & Pedestal Physics Presentation time: Not requested
Co-Author(s): L. Baylor, T. Jernigan
Description: Determine the effectiveness of pellet pacing of ELMs as a function of the toroidal rotation by injecting pellets at varying frequencies into plasmas with different plasma rotation.
Experimental Approach/Plan: Produce a set of standard ELMing H-mode plasmas with different toroidal rotations and inject pellets at relevant frequencies for ELM pacing and document the effectiveness at different rotation values.
Background: The sensitivity of the ELM properties to toroidal rotation may be significantly affected by pellet injection since the the pellets will change the toroidal rotation through changes in the edge density. This experiment aims to resolve how the interplay between the pellets and the edge rotation affect the ELMs, especially at low toroidal rotation which is very ITER relevant.
Resource Requirements: co and counter beams, pellet injector
Diagnostic Requirements: --
Analysis Requirements: --
Other Requirements: --