Numerical study of alpha particle loss with toroidal field ripple based on CFETR steady-state scenario

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外文摘要：Effects of plasma equilibrium parameters on the alpha particle loss with the toroidal field ripple based on the CFETR steady-state scenario have been numerically investigated by the orbit-following code GYCAVA.It is found that alpha particle losses decrease and loss regions become narrower with the plasma current increasing or with the magnetic field decreasing.It is because the ripple stochastic transport and the ripple well loss of alpha particle are reduced with the safety factor decreasing.Decrease of the plasma density and temperature can reduce alpha particle losses due to enhancement of the slowing-down effect.The direction of the toroidal magnetic field can significantly affect heat loads induced by lost alpha particle.The vertical asymmetry of heat loads induced by the clockwise and counter-clockwise toroidal magnetic fields are due to the fact that the ripple distribution is asymmetric about the mid-plane,which can be explained by the typical orbits of alpha particle.The maximal heat load of alpha particle for the clockwise toroidal magnetic field is much smaller than that for the counter-clockwise one.

外文关键词：

alpha particle lossrippleorbit-followingtokamak

作者：

李钮琦、徐颖峰、钟方川、张德兵

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作者单位：

College of Science,Donghua University,Shanghai 201620,China

Member of Magnetic Confinement Fusion Research Center,Ministry of Education,Shanghai 201620,China

Department of Physics,East China University of Science and Technology,Shanghai 200237,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Key Research and Development Program of ChinaFundamental Research Funds for the Central Universities

项目编号：

12175034120050632019YFE030300012232022G-10

出版年：

2024

DOI：

10.1088/1674-1056/ad03de

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

年,卷(期)：2024.33(1)

参考文献量32