EAST低杂波加热对同向切向中性束碰撞力矩影响的研究

doi:10.16568/j.0254-6086.202401015

核工业西南物理研究院 ›› 2024, Vol. 44 ›› Issue (1): 92-97.DOI: 10.16568/j.0254-6086.202401015

EAST低杂波加热对同向切向中性束碰撞力矩影响的研究

杨明1, 2，张新军2，李新霞*1，吕波2，古敬仁1

(1. 南华大学核科学技术学院，衡阳421001；2. 中国科学院等离子体物理研究所，合肥230031)

收稿日期:2020-12-02 修回日期:2022-10-10 出版日期:2024-03-15 发布日期:2024-03-14
通讯作者: 李新霞(1973-)，男，湖南衡阳人，教授，主要从事等离子体物理研究。
作者简介:杨明(1996-)，男，辽宁葫芦岛人，硕士研究生，主要从事等离子体物理研究。
基金资助:
国家自然科学基金 (11775108)；国家重点研发计划(2016YFA0400600)

Study of the effect of lower hybrid wave heating on the coaxial-tangential neutral beam collisional torque in EAST tokamak

YANG Ming1, 2，ZHANG Xin-jun2，LI Xin-xia1, LÜ Bo2, GU Jing-ren1

(1. School of Nuclear Science and Technology, University of South China, Hengyang 421001; 2. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031)

Received:2020-12-02 Revised:2022-10-10 Online:2024-03-15 Published:2024-03-14

摘要/Abstract

摘要： 为研究低杂波加热对同向切向中性束注入的束功率沉积和碰撞力矩的影响，基于低杂波加热的实验参数，使用TRANSP程序进行了模拟分析。研究结果表明，当注入功率1.3MW、能量50keV的同向切向束时，随着LHW加热束沉积功率降低，快离子电荷交换损失增加20%；离子吸收的功率占总的束沉积功率的比例由45%增加到51%。碰撞力矩与束沉积功率的比值由1.327Nm·MW^‒1增加到1.457Nm·MW^‒1；等离子体电子温度越高，电荷交换损失和碰撞力矩与束沉积功率比值也越大，而低杂波加热期间的束碰撞力矩保持稳定。

关键词: 中性束注入, 低杂波加热, 力矩, EAST装置

Abstract: In order to study the effect of lower hybrid wave (LHW) heating on the beam power deposition and the collisional torque of the coaxial-tangential neutral beam injection, TRANSP code was used for simulation analysis combined the LHW heating experimental data. The simulated results show that the beam power deposition decreases, and the charge-exchange loss of fast ions increases about 20% with LHW heating when the coaxial-tangential beam is injected with energy 50keV and injected power 1.3MW. The percentage of ion absorbed power to the total beam deposition power goes up from 45% to 51%. The ratio of collisional torque to beam deposition power goes up from 1.327Nm·MW^‒1 to 1.457Nm·MW^‒1. The higher the plasma electron temperature, the larger the charge exchange loss and the ratio of collisional torque to beam deposition power, while the beam collisional torque during LHW heating remains stable.

Key words: Neutral beam injection, LHWH, Torque, EAST tokamak

中图分类号:

TL61+2

杨明, 张新军, 李新霞, 吕波, 古敬仁. EAST低杂波加热对同向切向中性束碰撞力矩影响的研究[J]. 核工业西南物理研究院, 2024, 44(1): 92-97.

YANG Ming, ZHANG Xin-jun, LI Xin-xia, LÜ Bo, GU Jing-ren. Study of the effect of lower hybrid wave heating on the coaxial-tangential neutral beam collisional torque in EAST tokamak[J]. Nuclear Fusion and Plasma Physics, 2024, 44(1): 92-97.

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EAST低杂波加热对同向切向中性束碰撞力矩影响的研究

Study of the effect of lower hybrid wave heating on the coaxial-tangential neutral beam collisional torque in EAST tokamak

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