Direct observations of L-I-H and H-I-L transitions with the X-point reciprocating probe in ASDEX Upgrade

TitleDirect observations of L-I-H and H-I-L transitions with the X-point reciprocating probe in ASDEX Upgrade
Publication TypeJournal Article
Year of Publication2014
AuthorsS.H Mueller, G.D Conway, G. Birkenmeier, D. Carralero, T. Happel, A. Herrmann, P. Manz, P. de Marne, A. Mlynek, H.W. Müller, S. Potzel, V. Rohde, U. Stroth, M. Tsalas, G.R Tynan, E. Wolfrum, ASDEX Upgrade Team
JournalPhysics of Plasmas
Volume21
Issue4
Pagination042301
Date PublishedApr
ISBN Number1070-664X; 1089-7674
Abstract

A reciprocating Langmuir probe was used to directly measure the behavior of turbulence and flows in the X-point region during transitions between low-(L) and high-confinement (H) mode in ASDEX Upgrade. The probe traverses the divertor horizontally in 140 ms, typically 2-5 cm below the X-point. Toroidal Mach number, density, floating potential (phi(f)), and electron temperature (T-e) are measured. In the regime accessible to the probe (P-inj

DOI10.1063/1.4870012
Division

FP

Department

PDG

PID

d39b1f03098dac734efb08ae91ea4607

Alternate TitlePhys. Plasmas

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