@inproceedings{581d4fba8c4d4f499669a0bec1c24f07,
title = "Current effect on the edge profiles in the island at W7-X",
abstract = "In the second operational campaign of W7-X in 2018 (OP 1.2b) operation with an island divertor configuration allowed for considerably longer discharges than those in the previous limiter configuration. In the main configuration the so-called standard configuration a iedge= 5=5 island chain is present in the edge, it is partiallyintersected by the divertor. The manipulator plunged multiple times during a discharge which allowed the observation of time dependent changes in the plasma edge. The long discharge durations allowed for a considerable toroidal current to develop. The effect of the toroidal current on the edge islands can be estimated with a modified field line tracing calculation that axis-centered current added to the original calculation using coils of W7-X. The profilesof the electron temperature and density profiles measured with the Multi-Purpose Manipulator were obtained in multiple plunges during discharges with an evolving toroidal current. A clear inwards shift of electron temperature profile matching the predicted inwards shift of the last closed flux surface is observed.",
author = "\{the W7-X Team\} and P. Drews and C. Killer and A. Knieps and F. Reimold and D. Zhang and S. Brezinsek and M. Jakubowski and J. Cosfeld and M. Endler and K. Hammond and M. Henkel and J. Geiger and O. Grulke and R. K{\"o}nig and A. Kr{\"a}mer-Flecken and Y. Liang and S. Liu and D. Nicolai and G. Satheeswaran and O. Neubauer",
note = "Publisher Copyright: {\textcopyright} 2021 47th EPS Conference on Plasma Physics, EPS 2021. All right reserved.; 47th EPS Conference on Plasma Physics, EPS 2021 ; Conference date: 21-06-2021 Through 25-06-2021",
year = "2021",
language = "English (US)",
series = "47th EPS Conference on Plasma Physics, EPS 2021",
publisher = "European Physical Society (EPS)",
pages = "177--180",
booktitle = "47th EPS Conference on Plasma Physics, EPS 2021",
}