Multipacting Analysis in Micro-pulse Electron Gun Design

TL;DR

This paper introduces a new method for analyzing multipacting resonance in micro-pulse electron guns, demonstrating steady state saturation and transition control through simulation results.

Contribution

A novel approach to calculate multipacting resonance parameters and insights into transition mechanisms in micro-pulse electron gun design.

Findings

Steady state saturation can be achieved in the gun.

Transition from two-surface to single-surface multipacting can be controlled.

Simulation results validate the proposed method.

Abstract

Modeling multipacting to steady state saturation is of interest in determining the performance of micro-pulse electron gun. In this paper, a novel method is proposed to calculate the multipacting resonance parameters for the gun. This method works well, and the 2-D simulation results suggest that steady state saturation can be achieved in the gun. After saturation the transition from two-surface multipacting to single-surface multipacting is occurred, and an extensive range of electrons emission time is a suggested way to avoid this kind of transition.