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Title	238: Search for long-range correlations and non-local behavior in turbulence dynamics
Name:	Christopher Holland ()	Affiliation:	University of California, San Diego
Research Area:	Transport	Presentation time:	Requested
Co-Author(s):	G. R. Tynan, G. R. McKee, P. H. Diamond
Description:	The goal of this experiment would be to take advantage of the latest upgrades to the BES system, which will cover a significantly larger radial range, and search for evidence of long range (�??mesoscale�?�) correlations in the turbulence.
Experimental Approach/Plan:	A steady discharge with significant transport and fluxes is desirable. An inner-wall limited L-mode discharge analogous to what was used in the 2006 Mach number scaling experiment would be suitable. If possible, varying rho-star to affect turbulent eddy size would be desirable
Background:	The question of nonlocal dynamics has a long history in the study of plasma turbulence, and remains an active area of theoretical investigation. The potential relevance of these mechanisms becomes particularly important in light of the limited success of local simulations in successfully predicting heat and particle fluxes in the outer core and edge region of magnetic confinement devices. The goal of this experiment would be to collaborate with members of theory community to identify potential signatures of these dynamics (such as long-range correlations in turbulent fields, including zonal flows, in a steady plasma), and then search for these signatures using the newly radially extend BES diagnostic.
Resource Requirements:	--
Diagnostic Requirements:	profile measurements, BES
Analysis Requirements:	transport and fluctuation analysis, TGLF/GYRO simulation
Other Requirements:	--