Abstract

This paper presents the results of simulation of the collector of a prototype gyrotron designed for the DEMO project. Trajectory analysis in a collector with four-stage recovery of the residual beam energy based on the method of spatial separation of electrons in crossed azimuthal magnetic and axial electric fields was carried out. In this part of the research, the azimuthal magnetic field was formed using a conductor located on the axis of the device. The study was carried out for a spent electron beam with a particle velocity and coordinate distribution close to those obtained in experiments with high-power gyrotrons. As a result of optimizing the geometry and potentials of the collector sections, an overall efficiency of the gyrotron higher than 80% was achieved, which is close to the maximum efficiency with ideal separation of electron beam fractions with different energies. The data obtained will be used to design a toroidal solenoid for creating an azimuthal magnetic field.

中文翻译：

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具有DEMO原型回旋加速器的多级能量回收的集热器中的轨迹分析。第一部分：理想的磁场分布

摘要

本文介绍了为DEMO项目设计的原型回旋管收集器的仿真结果。基于电子在正交方位角磁场和轴向电场中的空间分离方法，对收集器进行了轨迹分析，对剩余束能量进行了四阶段回收。在这部分研究中，使用位于设备轴上的导体形成了方位磁场。这项研究是针对具有与大功率旋流器实验中获得的粒子速度和坐标分布相近的粒子速度和坐标分布的乏电子束进行的。通过优化收集器部分的几何形状和电势，回旋管的总效率达到了80％以上，通过不同能量的电子束分数的理想分离，接近最大效率。所获得的数据将用于设计用于产生方位角磁场的环形螺线管。