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 382: Transport and turbulence characterization experiment
Name:Edward Doyle doyle@fusion.gat.com Affiliation:University of California, Los Angeles
Research Area:Steady State Heating and Current Drive Presentation time: Not requested
Co-Author(s): Rhodes, McKee, Schmitz ITPA Joint Experiment : No
Description: Transport and turbulence teams have not been fully engaged with steady-state experiments. Best place to start is to obtain transport reference and turbulence characterization discharges for leading DIII-D scenarios. ITER IO Urgent Research Task : No
Experimental Approach/Plan: Obtain turbulence and transport documentation for the four leading steady-state scenarios on DIII-D, viz q_min~1.5, q_min > 2, ITER steady-state scenario, and off axis-NBI scenario. This requires repeat shots of discharges from each scenario to vary beam mix (BES versus CER), DBS wavenumbers, and CECE location.
Background: Transport is the limiting factor in steady-state experiment. Confinement varies between campaigns/years and between scenarios - i.e. ITER steady-state scenario had unexpectedly good confinement, while confinement in other regimes has deteriorated. This argues for obtaining transport and turbulence documentation/reference shots for our key steady-state scenarios.
Resource Requirements: 8 beams, all gyrotrons
Diagnostic Requirements: BES, DBS, CECE
Analysis Requirements:
Other Requirements: