A Novel Method for Rigorously Analyzing Beam Loading Effect Based on the Macro-Particle Model

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2014,（1）
• 页码范围: 65-68
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/31/1/012902

摘要

The beam loading effect is a considerable issue for a high average current beam.We apply a novel method without utilizing the specious beam current value to rigorously analyze the beam loading effect in S-band linacs.By tracking every macro-particle's state and using the energy conservation law,power dissipated from the beam is calculated in each cell.In the new particle-based algorithm,the concept of equivalent beam current is proposed.Its value is not constant and it has a small variation through the accelerating structure.Also,we introduce the iteration algorithm as comparison and we find that the two algorithms coincide with each other verv well.