Inductive field-reversed configuration accelerator for tokamak fueling
Inductive field-reversed configuration accelerator for tokamak fueling
复制标题
用于托卡马克燃料加注的感应场反转构型加速器
DOI：
10.13182/fst99-a96
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
J. Slough
中科院分区：
文献类型：
--
作者：
A. Hoffman;P. Gurevich;J. Grossnickle;J. Slough
通过将其他聚变装置加速到足够高的速度以穿透强磁场，紧凑的环形可以用来为它们提供燃料。在最简单的分析中，排除磁通的物体{1/2}pv{sup 2}的动能密度必须超过被推到一边的磁场的磁场能量密度B{sup 2}/2{u}{sub0}。场反转配置(FRC)是一种紧凑的环形结构，由于其高密度和较低的单位质量所需能量，对于这种应用特别有效。FRC也是感应形成和加速的，因此最大限度地减少了可能的杂质污染。建立了托卡马克加速等离子体堆芯(TRAP)实验，以发展感应加速法，测试高速FRC穿透横向磁场的能力。已经开发了用于加速和穿透过程的简单模型，以确定给定托卡马克区域所需的加料器参数。给出了加速过程的实验结果。半毫克数密度为10{sup 22}m{sup{负}3}的FRC被加速到200公里/S的速度，足以用Tesia磁场为托卡马克提供燃料。这项技术很容易扩展到更高的FRC密度和速度，足以为最大、最高场的托卡马克提供燃料。
Compact toroids can be used for fueling other fusion devices by accelerating them to high enough velocities to penetrate strong magnetic fields. In the simplest analysis, the kinetic energy density of a flux-excluding object {1/2}pv{sup 2} must exceed the magnetic field energy density B{sup 2}/2{mu}{sub 0} of the field to be pushed aside. Field reversed configurations (FRCs) are a type of compact toroid that are particularly efficient for this application due to their high density and thus lower required energy per unit mass. FRCs are also formed and accelerated inductively, thus minimizing possible impurity contamination. The Tokamak Refueling by Accelerated Plasmoids (TRAP) experiment was built to develop the inductive acceleration method and test the ability of high-velocity FRCs to penetrate transverse magnetic fields. Simple models have been developed for both the acceleration and penetration processes to determine fueler parameters required for a given tokamak field. Experimental results are given for the acceleration process. Half-milligram FRCs with number densities of 10{sup 22} m{sup {minus}3} were accelerated to velocities of 200 km/s, sufficient to fuel tokamaks with Tesia magnetic fields. The technology is easily extendable to much higher FRC densities and velocities, sufficient to fuel the largest, highest-field tokamaks.