Research for rotational equilibrium and transport model of steady burning D-^3He plasma in the field-reversed configuration

场反转构型稳态燃烧D-^3He等离子体旋转平衡与输运模型研究

• 批准号: 05808041
• 负责人: TOMITA Yukihiro
• 金额: $ 0.83万
• 依托单位: National Institute for Fusion Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05808041/
• 关键词: Steady Equilibrium; D-^3He Fueled Fusion; Seed Current; Bootstrap Current; Field-Reversed Configuration; direct energy conversion; 重水素・ヘリウム3燃料

The steady state of cylindrical plasma with fueling and momentum injection is studied theoretically. It is shown that a pressure gradient produced by the particle injection or resultant diamagnetic current can sustain only an equilibrium of a diffused linear pinch configuration. For an extremely elongated FRC where magnetic field vanishes at a certain point, a seed current is needed to sustain configuration in a steady state equilibrium. A directed flow of fusion produced protons forms a seed current and consequently it sustains a steady FRC equilibrium by fueling only once D-^3He burning takes place. Sustainment of very high beta plasma is got by injecting large amount of fuel particle at the plasma edge. The flow velocity of the plasma is small in this case and accordingly bootstrap current is small at the vicinity of the plasma center of the FRC and region of flat pressure profile extends.From the equilibrium we studied, the loss particle fraction are estimated and the direct energy conversion method using traveling wave (TWDEC) for fusion produced protons with 15 MeV is proposed. The detail behavior of fusion protons in this TWDEC is clarified by solving the self-consistent circuit and particle equations.

从理论上研究了加燃料和动量注入条件下圆柱形等离子体的稳态。结果表明，由粒子注入或由此产生的抗磁电流产生的压力梯度只能维持扩散线性箍缩结构的平衡。对于磁场在某一点处消失的极细长FRC，需要种子电流来维持稳态平衡中的配置。聚变产生的质子的定向流形成了一个种子电流，因此它只在D^3He燃烧发生时才加燃料，从而维持了一个稳定的FRC平衡。通过在等离子体边缘注入大量的燃料粒子，获得了极高β等离子体的维持。在这种情况下，等离子体的流速很小，在FRC的等离子体中心附近，自举电流很小，压力分布平坦的区域扩大.从平衡态出发，我们估计了损失的粒子分数，并提出了利用行波直接能量转换方法（TWDEC）来转换15 MeV聚变产生的质子.通过求解自洽电路和粒子方程，阐明了聚变质子在TWDEC中的详细行为。

项目成果

H.Momota: "Characteristics of D-^3He Fueled FRC Reactor:ARTEMIS-L" Proceedings of the Seventh International Conference on Emerging Nuclear Energy Systems. 16-20 (1993)

H.Momota：“D-^3He 燃料 FRC 反应堆的特性：ARTEMIS-L”第七届新兴核能系统国际会议论文集。

Y.Tomita: "Direct Energy Conversion System for D-^3He Fusion" Proceedings of the Seventh International Conference on Emerging Nuclear Energy Systems. 523-526 (1993)

Y.Tomita：“D-^3He聚变的直接能量转换系统”第七届新兴核能系统国际会议论文集。

Yukihiro Tomita: "Direct Energy Conversion System for D-^3He Fusion" Proc.7th Int.Conf.on Emerging Nucl.Energy Systems. 522-526 (1994)

Yukihiro Tomita：“D-^3He 聚变的直接能量转换系统”Proc.7th Int.Conf.on Emerging Nucl.Energy Systems。

Hiromu Momota: "Characteristics of D-^3He Fueled FRC Reactor:ARTEMIS-L" Proc.7th Int.Conf.on Emerging Nucl.Energy Systems. 16-20 (1994)

Hiromu Momota：“D-^3He 燃料 FRC 反应堆的特性：ARTEMIS-L”Proc.7th Int.Conf.on Emerging Nucl.Energy Systems。

Yukihiro Tomita: "Steady Equilibrium of a Cylindrically Symmetric Plasma Sustained by Fueling" Journal of Plasma and Fusion Research. 69. 801-805 (1993)

Yukihiro Tomita：“通过燃料维持的圆柱对称等离子体的稳定平衡”等离子体与聚变研究杂志。