DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2013 EXPERIMENTAL CAMPAIGN Review | Direct submission with log-in | Request submission without log-in
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Title	261: Demonstration of stationary inductive solutions at low and moderate q95
Name:	Timothy Luce tim.luce@iter.org	Affiliation:	ITER Organization
Research Area:	Inductive Scenarios	Presentation time:	Not requested
Co-Author(s):		ITPA Joint Experiment :	No
Description:	Previous experiments on DIII-D showed stationary inductive solutions at q95~3 for beta_N=1.6-2.2 and beta_N=2.5-2.8 using different startup methods. At q95~4, there a similar range (up to beta_N=3.5) was found also with a gap in beta_N. It appears that the gap is an access issue and not the absence of stable stationary solutions in the gap. This proposal seeks to demonstrate that inductive operation is possible at all beta_N between the LH back-transition at the low end and the no-wall beta_N limit (or higher) at the high end. Demonstration of this continuum would have two effects--it would demonstrate the real operational range of inductive scenarios available for tokamak design and it would finally enable the investigation of the long-asked question of "what is different between advanced inductive and standard H mode?".	ITER IO Urgent Research Task :	No
Experimental Approach/Plan:
Background:	Builds on experiments on ITER baseline scenario and advanced inductive development over the last 10 years.
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