Physics basis for the Wisconsin HTS Axisymmetric Mirror (WHAM)
Physics basis for the Wisconsin HTS Axisymmetric Mirror (WHAM)
复制标题
威斯康星 HTS 轴对称镜 (WHAM) 的物理基础
DOI：
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复制
发表时间：
2023
影响因子：
2.5
通讯作者：
C. Forest
中科院分区：
文献类型：
--
作者：
D. Endrizzi;J. Anderson;M. Brown;J. Egedal;B. Geiger;R. Harvey;M. Ialovega;J. Kirch;E. Peterson;Yu.V. Petrov;J. Pizzo;T. Qian;K. Sanwalka;O. Schmitz;J. Wallace;D. Yakovlev;M. Yu;C. Forest
威斯康星州高温超导体轴对称镜实验（WHAM）将成为原型技术的高场平台，验证互换稳定技术和基准数值代码性能，使下一步达到反应堆参数。的实验装置及其各个子系统的详细概述。WHAM将使用电子回旋加热来加速和建立一个致密的目标等离子体，用于中性束注入快离子，并通过边缘偏置剪切流来稳定。在25 keV的注入能量，电荷交换占主导地位的碰撞电离和限制的中性束注入燃料的有效性。本文概述了一种自洽地预测中性束驱动的各向异性离子分布的迭代技术及其在有限β平衡中的作用。从Egedal等人（Nucl.Fusion，第62卷，第12期，2022年，第126053页）关于WHAM几何的最新工作开始，我们详细介绍了如何使用FIDASIM代码来模拟分布函数中的电荷交换源和汇，并将两者与各向异性磁流体动力学平衡求解器方法相结合，以自洽地达到平衡。我们比较这与最近的结果使用CQL3D代码适用于镜的几何形状，其中包括高谐波快波加热的快离子。
The Wisconsin high-temperature superconductor axisymmetric mirror experiment (WHAM) will be a high-field platform for prototyping technologies, validating interchange stabilization techniques and benchmarking numerical code performance, enabling the next step up to reactor parameters. A detailed overview of the experimental apparatus and its various subsystems is presented. WHAM will use electron cyclotron heating to ionize and build a dense target plasma for neutral beam injection of fast ions, stabilized by edge-biased sheared flow. At 25 keV injection energies, charge exchange dominates over impact ionization and limits the effectiveness of neutral beam injection fuelling. This paper outlines an iterative technique for self-consistently predicting the neutral beam driven anisotropic ion distribution and its role in the finite beta equilibrium. Beginning with recent work by Egedal et al. (Nucl. Fusion, vol. 62, no. 12, 2022, p. 126053) on the WHAM geometry, we detail how the FIDASIM code is used to model the charge exchange sources and sinks in the distribution function, and both are combined with an anisotropic magnetohydrodynamic equilibrium solver method to self-consistently reach an equilibrium. We compare this with recent results using the CQL3D code adapted for the mirror geometry, which includes the high-harmonic fast wave heating of fast ions.
DOI：
10.1073/pnas.1917905117
发表时间：
2020-04-28
影响因子：
11.1
作者：
Boldyrev, Stanislav;Forest, Cary;Egedal, Jan
通讯作者：
Egedal, Jan