The effect of shaping on trapped electron mode stability: an analytical model

• Main Authors: Garbet, Xavier, Donnel, P., De Gianni, L., Qu, Zhisong, Melka, Y., Sarazin, Y., Grandgirard, V., Obrejan, K., Bourne, E., Dif-Pradalier, G.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2024
• Subjects: Physics; Magnetic fusion energy; Trapped electron modes
• Online Access: https://hdl.handle.net/10356/180445
• Institution: Nanyang Technological University

A reduced model for trapped electron mode stability has been developed, which incorporates the basic effects of magnetic surface shaping, in particular, elongation and triangularity. This model shows that while elongation is stabilising, though weakly, negative triangularity usually leads to a more...