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Title	244: Study NRMF driven torque in ECH-only heated plasma (ELMing H-modes)
Name:	Andrea Garofalo garofalo@fusion.gat.com	Affiliation:	General Atomics
Research Area:	Plasma Rotation	Presentation time:	Not requested
Co-Author(s):	K. Burrell, J. deGrassie, W. Solomon	ITPA Joint Experiment :	No
Description:	Is the NRMF torque due to loss of fast ions, or is it a neoclassical effect on thermal ions? To conclusively answer this question, we need to clearly observe the counter torque from NRMFs in ECH H-modes.	ITER IO Urgent Research Task :	No
Experimental Approach/Plan:	In previous attempts which used odd parity n=3 I-coil fields (May 13, 2009), the plasmas were severely affected by the density pumpout associated with the applied NRMFs. Recent experiments have shown that the C-coil provides even larger NRMF torque than the I-coil, without the density pump-out. We propose to repeat the ECH H-mode experiments of May 2009 (e.g. discharge 137225) applying NRMFs using the C-coil, instead of the I-coil.
Background:	Experiment 20090513: Effect of n=3 fields on ECH H-modes was observed for the first time. Only odd parity n=3 I-coil fields were used. Very strong density pump-out was observed, accompanied by strong reduction of beta and rotation.
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