Email this article Spontaneous Break of up–down Symmetry in a Symmetric Double-Null Divertor Configuration
- Authors: Kukushkin A.S.1,2
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Affiliations:
- National Research Center “Kurchatov Institute”
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
- Issue: Vol 45, No 7 (2019)
- Pages: 637-641
- Section: Tokamaks
- URL: https://journals.rcsi.science/1063-780X/article/view/187185
- DOI: https://doi.org/10.1134/S1063780X19070067
- ID: 187185
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Abstract
A possibility of up–down asymmetry of the profiles of the edge plasma parameters in a symmetric double-null divertor configuration in the case of impurity seeding is found by computational modeling. The physical mechanism of such a symmetry violation, related to radiation-condensation instability, is proposed. This effect can reduce the would-be advantage of the double-null configuration in the power load spreading over a larger area, which is vital for fusion reactor projects.
About the authors
A. S. Kukushkin
National Research Center “Kurchatov Institute”; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Author for correspondence.
Email: ank755@gmail.com
Russian Federation, Moscow, 123182; Moscow, 115406
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