JET托卡马克中阿尔芬诺模式耦合产生的零频率波动的测量
等离子体物理
2025-01-22 v2
摘要
我们报告首次检测到由阿尔芬诺模式泵送的零频率波动。核心局部的双向阿尔芬诺模式，其频率位于扭曲性诱导空隙内（及其谐波） exhibit three-wave coupling interactions with a zero-frequency fluctuation。零频率波动的观察与理论和数值预测的zonal模式由阿尔芬诺模式泵送相符，并且与深层核心离子温度、温度梯度和约束因子 的增加相关。尽管阿尔芬诺本征模式导致能量粒子输运，但产生能够抑制湍流的零频率波动导致整体约束性能的提升。
引用
@article{arxiv.2407.01255,
title = {Measurement of zero-frequency fluctuations generated by coupling between Alfven modes in the JET tokamak},
author = {Juan Ruiz Ruiz and Jeronimo Garcia and Michael Barnes and Mykola Dreval and Carine Giroud and Valerian H. Hall-Chen and Michael R. Hardman and Jon C. Hillesheim and Yevgen Kazakov and Samuele Mazzi and Felix I. Parra and Bhavin S. Patel and Alexander A. Schekochihin and Ziga Stancar and the JET Contributors and the EUROfusion Tokamak Exploitation Team},
journal= {arXiv preprint arXiv:2407.01255},
year = {2025}
}