Possible seed for internal transport barriers in L-mode plasmas modeled on JT-60U reversed magnetic-shear discharge subject to profile constraints

We study low confinement mode (L-mode) plasmas modeled on JT-60U reversed magnetic-shear discharges using $\delta f$ -based global gyrokinetic simulations, which exhibit strong profile constraints arising from two spatially separated instability free energy sources in a subcritical state for trigger...

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Bibliographic Details

Published in:	Nuclear Fusion
Main Authors:	R. Zhao, K. Imadera, W. Wang, J.Q. Li, Z.X. Wang, A. Ishizawa, Y. Kishimoto
Format:	Article
Language:	English
Published:	IOP Publishing 2026-01-01
Subjects:	ITB formation global gyrokinetic simulation reversed magnetic shear L-mode plasma zonal flow/GAM turbulent transport
Online Access:	https://doi.org/10.1088/1741-4326/ae5263