The Role of an Electric Field in the Formation of a Detached Regime in Tokamak Plasma
- Authors: Senichenkov I.1, Kaveeva E.1, Rozhansky V.1, Sytova E.1,2,3,4, Veselova I.1, Voskoboynikov S.1, Coster D.2
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Affiliations:
- Peter the Great St. Petersburg Polytechnic University
- Max-Planck Institut für Plasmaphysik
- Ghent University
- Aix-Marseille Université
- Issue: Vol 44, No 3 (2018)
- Pages: 255-259
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/207517
- DOI: https://doi.org/10.1134/S1063785018030252
- ID: 207517
Cite item
Abstract
Modeling of the transition to the detachment of ASDEX Upgrade tokamak plasma with increasing density is performed using the SOLPS-ITER numerical code with a self-consistent account of drifts and currents. Their role in plasma redistribution both in the confinement region and in the scrape-off layer (SOL) is investigated. The mechanism of high field side high-density formation in the SOL in the course of detachment is suggested. In the full detachment regime, when the cold plasma region expands above the X-point and reaches closed magnetic-flux surfaces, plasma perturbation in a confined region may lead to a change in the confinement regime.
About the authors
I. Senichenkov
Peter the Great St. Petersburg Polytechnic University
Author for correspondence.
Email: I.Senichenkov@spbstu.ru
Russian Federation, St. Petersburg, 195251
E. Kaveeva
Peter the Great St. Petersburg Polytechnic University
Email: I.Senichenkov@spbstu.ru
Russian Federation, St. Petersburg, 195251
V. Rozhansky
Peter the Great St. Petersburg Polytechnic University
Email: I.Senichenkov@spbstu.ru
Russian Federation, St. Petersburg, 195251
E. Sytova
Peter the Great St. Petersburg Polytechnic University; Max-Planck Institut für Plasmaphysik; Ghent University; Aix-Marseille Université
Email: I.Senichenkov@spbstu.ru
Russian Federation, St. Petersburg, 195251; Garching, D-85748; Ghent; Marseille
I. Veselova
Peter the Great St. Petersburg Polytechnic University
Email: I.Senichenkov@spbstu.ru
Russian Federation, St. Petersburg, 195251
S. Voskoboynikov
Peter the Great St. Petersburg Polytechnic University
Email: I.Senichenkov@spbstu.ru
Russian Federation, St. Petersburg, 195251
D. Coster
Max-Planck Institut für Plasmaphysik
Email: I.Senichenkov@spbstu.ru
Germany, Garching, D-85748