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Theoretical Study on Proton-Boron Fusion Reactor with LHD-Type Magnetic Field Configuration

LHD型磁场结构质子硼聚变反应堆理论研究

基本信息

批准号：
15540480
负责人：
HOJO Hitoshi
金额：
$ 1.92万
依托单位：
University of Tsukuba (2004)National Institute for Fusion Science (2003)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15540480/
关键词：
Proton-Boron Fusion High-Beta Plasma LHD ICRF Heating Ignition Condition Chaotic Field Line Particle Orbit Stability Analysis LHD磁場配位平衡解析 P-11B fusion reactor ICRF particle orbit high beta plasma chaotic field line region su

项目摘要

Results of research are summarized as follows :1.Remoteness antenna configuration is desirable to use ICRF heating in a fusion reactor. It is shown numerically that protons resonantly accelerated near the most outer magnetic surface in the LHD configuration can heat core plasma, and also the possibility of remoteness antenna configuration is shown.2.Equilibrium analysis : High-beta plasma is presumed to sustain burning reaction in a proton-boron fusion reactor. It is shown that any magnetic field is described by two components of vector potential, and thus we can construct and solve equations describing plasma equilibrium if we consider these two components of vector potential and pressure as unknown functions. By using this, we have constructed a method to analyze the equilibrium configuration of the LHD magnetic configuration with magnetic surface surrounded by outer chaotic field line region. The validity of this method is shown from the numerical calculation for the vacuum magnetic … More surface of the LHD.3.Stability analysis : Chaotic field line region exists out of the most outer magnetic surface in the LHD configuration. Charge separation is neutralized immediately in the chaotic field line region, and field line out of chaotic field line is fixed in a short distance on a vacuum chamber wall. We point that this chaotic field line region contributes the stable sustainment of LHD plasma, and we predict that the sustainment of stable high-beta plasma is possible in the LHD magnetic field.4.Ignition condition analysis for proton-boron fusion : From the analysis of ICRF heating including the effect of electron drag in the LHD magnetic field, it is shown that the production of protons with the energy exceeding 600keV, which is concerned with proton-boron fusion reaction, is possible in the present LHD. We point that the proton distribution function forms a quasi-linear plateau distribution due to ICRF heating, and from the calculation of the fusion reaction rate with this distribution it is shown that the satisfaction of the ignition condition for proton-boron fusion is possible.5.New methods for numerically computing Maxwell equations including the effects of wave-particle resonances are established for electromagnetic wave propagation study, and the validity of these methods is confirmed. Less

研究结果总结如下： 1.在聚变反应堆中使用ICRF加热需要采用远程天线配置。数值表明，LHD配置中最外磁表面附近共振加速的质子可以加热核心等离子体，并且还显示了远程天线配置的可能性。2.平衡分析：推测高β等离子体维持质子-硼聚变反应堆中的燃烧反应。结果表明，任何磁场都是由矢量势的两个分量来描述的，因此，如果我们将矢量势和压力的这两个分量视为未知函数，我们就可以构造和求解描述等离子体平衡的方程。利用这一点，我们构建了一种方法来分析磁面被外部混沌磁力线区域包围的 LHD 磁结构的平衡结构。对铲运机真空磁表面的数值计算证明了该方法的有效性。3.稳定性分析：铲运机结构中最外磁表面存在混沌磁力线区域。电荷分离在混沌场线区域中立即被中和，并且混沌场线外的场线被短距离地固定在真空室壁上。我们指出这个混沌场线区域有助于LHD等离子体的稳定维持，并预测在LHD磁场中维持稳定的高β等离子体是可能的。4.质子-硼聚变的点火条件分析：从ICRF加热分析，包括LHD磁场中电子拖曳的影响，表明产生了能量超过600keV的质子，这与质子-硼有关。聚变反应，在目前的 LHD 中是可能的。我们指出，由于ICRF加热，质子分布函数形成了准线性平台分布，并根据该分布计算聚变反应速率，表明满足质子-硼聚变点火条件是可能的。5.为电磁波传播研究建立了包括波粒共振效应的麦克斯韦方程数值计算新方法，并证实了这些方法的有效性。较少的