铁氧体磁芯感应加速腔模型

 针对铁氧体磁芯，建立了以多层有损传输线为基础的同轴感应加速腔物理模型，并在短脉冲励磁条件下，通过低压及高压实验，结合PSpice电路模拟，对模型的准确性进行了验证，并由此间接推算出了铁氧体磁芯在不同情况下的平均脉冲磁导率和介电常数。实验和模拟结果显示，该模型能够准确地反映铁氧体磁芯感应腔在脉冲励磁下的动态物理过程，为感应加速腔实验结果分析、结构优化设计及磁芯性能选取提供了准确有效的方法。

Model of induction accelerator cavity with ferrite cores

A model based on the multilayer lossy transmission line was set up for studying induction accelerator cavity with ferrite cores. Experiments in short pulse exciting in both 5 kV and 220 kV voltages and simulations by PSpice were used to prove the model, and the average permeability and permittivity of the core during the pulses were calculated. The experiment and simulation results show that the model can describe the dynamic physical characteristics of the induction cavity with ferrite cores accurately, and the model makes it easier and more efficient to ananlyze the waveforms, to optimize the device and to sclect the magnetic cores of the induction accelerator cavity.