Steady-state tokamak operation, ITB transition and sustainment and ECCD experiments in TRIAM-1M

Experiments aiming at ‘day long operation at high performance’ have been carried out in TRIAM-1M. The record value of the discharge duration was updated to 5 h and 16 min. Steady-state tokamak operation is studied under the localized plasma wall interaction conditions. The distributions of the heat load, the particle recycling flux and impurity source are investigated to understand the co-deposition and wall pumping. The formation and sustainment of an internal transport barrier (ITB) in enhanced current drive mode has been investigated by controlling the lower hybrid driven current profile by changing the phase spectrum. An ITER relevant remote steering antenna for electron cyclotron wave injection was installed and a relativistic Doppler resonance of the oblique propagating extraordinary wave with energetic electrons driven by lower hybrid waves was studied.

在TRIAM - 1M中已经进行了旨在“高性能全天运行”的实验。放电持续时间的记录值被更新为5小时16分钟。在局部等离子体与壁相互作用的条件下研究了托卡马克的稳态运行。对热负荷、粒子再循环通量和杂质源的分布进行了研究，以了解共沉积和壁抽气现象。通过改变相位谱来控制低杂波驱动电流分布，研究了在增强电流驱动模式下内部输运垒（ITB）的形成和维持。安装了一个与国际热核聚变实验堆（ITER）相关的用于电子回旋波注入的遥控转向天线，并研究了由低杂波驱动的高能电子与斜传播的异常波的相对论多普勒共振。