Evidence on the effects of main-chamber neutrals on density shoulder broadening

TitleEvidence on the effects of main-chamber neutrals on density shoulder broadening
Publication TypeJournal Article
Year of Publication2022
AuthorsC.K. Tsui, J. Boedo, D. Brida, O. Fevrier, G.F. Harrer, A. Perek, H. Reimerdes, B.P. Duval, S. Gorno, U. Sheikh, C. Theiler, N. Vianello, N. Walkden, M. Wensing, M. Baquero-Ruiz, TCV team, MST1 Team
JournalPhysics of Plasmas
Volume29
Issue6
Pagination062507
Abstract

Evidence that density shoulder broadening is dependent on high main-chamber neutral density is presented. Shoulder broadening does not occur when the sources for main-chamber neutrals are minimized using divertor baffles and wide gaps to the first wall (∼3× the density decay length). Removing the baffles or reducing the gap to the inner wall both act to increase the density shoulder amplitude in otherwise identical TCV discharges. Radial turbulent transport is correlated with shoulder amplitude.

 

URLhttps://publik.tuwien.ac.at/files/publik_304353.pdf
DOI10.1063/5.0090260
Division

FP

Department

PEPD

PID8aea8a4ad0a00e1d0236ecba9b1d7802
Alternate TitlePhys. Plasmas
LabelOA

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