10月12日 Overview of I-mode Experiments and Physics in Tokamaks

报告题目：Overview of I-mode Experiments and Physics in Tokamaks

报告时间：10月12日（周一）上午9：00-10：00

报告地点：EAST控制大厅三楼会议室

报 告 人：邹晓岚

主 持 人：徐立清

报告内容简介：

I-mode is an attractive confinement regime that combines improved energy confinement with comparatively weak particle confinement, sustaining a pronounced temperature pedestal without the strong density pedestal characteristic of H-mode. This decoupling of heat and particle transport is generally associated with the absence of large edge-localized modes (ELMs) and with characteristic edge fluctuations as the weakly coherent mode (WCM). Following early observations on ASDEX and extensive studies on Alcator C-Mod, I-mode has been demonstrated on several tokamaks, including ASDEX Upgrade, DIII-D, HL-2A, and EAST, establishing its robustness across different devices.

On EAST, systematic experiments have characterized the L–I–H power window, edge turbulence dynamics, the roles of WCM, GAM and ETRO, radial electric-field shear, and the effects of magnetic configuration and wall conditioning. A major milestone was the 1056-s Super I-mode discharge, in which edge I-mode coexisted with a core electron internal transport barrier, demonstrating long-pulse, ELM-free, high-confinement operation. More recently, boronization has extended EAST I-mode operation toward substantially higher density. These achievements position I-mode as a promising candidate for future fusion reactors, provided that high-density operation, impurity control, detached-divertor compatibility, and fully integrated steady-state performance can be demonstrated simultaneously in the presence of reactor-relevant energetic-particle populations.

报告人简介：

Dr. Xiaolan Zou is a physicist and fusion-plasma researcher at the French Alternative Energies and Atomic Energy Commission (CEA), with more than three decades of experience in experimental plasma physics.

He graduated from École Polytechnique, France, in 1985 and received his PhD from the University of Paris-Saclay in 1988. From 1989 to 1992, he carried out postdoctoral research at CEA Cadarache. In 1992, he joined CEA as a permanent physicist-researcher and has since pursued research on magnetic-confinement fusion plasmas and tokamak physics.

His research focuses on magnetic-confinement fusion plasma physics, with particular expertise in microwave diagnostics (DBS, CPS), plasma turbulence and transport, ECRH/ECCD, and advanced confinement regimes. His current interests include I-mode and H-mode physics, edge turbulence, transport barriers, pedestal dynamics, and long-pulse high-performance tokamak plasmas.