回旋管辐射功率与磁位形的关系

Dependence of Emission Power of Gyrotron on Magnetic Field Profile

本文将回旋管的工作磁位形概括为统一的表达式,并通过数值求解相对论电子运动方程,着重讨论了工作磁场位形对回旋管电子效率和输出功率的影响。结果指出在回旋管中最佳的磁位场形是立方形分布,其次是最大值不在互作用区末端的抛物形分布。对于提高回旋管的电子效率和输出功率来说,这两种磁位形都要比线性增加的分布和最大值在互作用区末端的抛物形分布为好。

In this paper, the magnetic field profiles in gyrotron have been given as a united representation. Their effects on the electron efficiency and output power are simulated in detail by means of the numerical solution of the equation of relativistic electron motion. The results show that the optimum profile of the applied magnetic field in the gyrotron is the cubic shape and the next best is the parabola which the maximum is not at the end of interaction region. They are better than the ordinary parabola with a maximum at the end of interaction region and a slighly tapered(linear ramp) magnetic field profiles.