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.
Evidence on the effects of main-chamber neutrals on density shoulder broadening
Tsui C.K.; Boedo J.A.; Brida D.; Fevrier O.; Harrer G.F.; Perek A.; Reimerdes H.; Duval B.P.; Gorno S.; Sheikh U.A.; Theiler C.; Vianello N.; Walkden N.; Wensing M.; Baquero-Ruiz M.
ID | 469275 |
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DOI | 10.1063/5.0090260 |
PRODUCT TYPE | Journal Article |
LAST UPDATE | 2022-07-19T14:36:20Z |
EU PROJECT | EUROfusion |
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TITLE | Implementation of activities described in the Roadmap to Fusion during Horizon 2020 through a Joint programme of the members of the EUROfusion consortium |
FOUNDING PROGRAM | H2020 |