Particle acceleration by stimulated emission of radiation in cylindrical waveguide  

作　　者：田秀芳 吴丛凤 贾启卡 

机构地区：[1]National Synchrotron Radiation Laboratory,University of Science and Technology of China

出　　处：《Chinese Physics C》2015年第7期88-92,共5页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(10675116);Major State Basic Research Development Programme of China(2011CB808301)

摘　　要：In particle acceleration by stimulated emission of radiation（PASER）, efficient interaction occurs when a train of micro-bunches has periodicity identical to the resonance frequency of the medium. Previous theoretical calculations based on the simplified model have only considered the energy exchange in the boundless condition.Under experimental conditions, however, the gas active medium must be guided by the metal waveguide. In this paper, we have developed a model of the energy exchange between a train of micro-bunches and a gas mixture active medium in a waveguide boundary for the first time, based on the theory of electromagnetic fields, and made detailed analysis and calculations with Math CAD. The results show that energy density can be optimized to a certain value to get the maximum energy exchange.In particle acceleration by stimulated emission of radiation（PASER）, efficient interaction occurs when a train of micro-bunches has periodicity identical to the resonance frequency of the medium. Previous theoretical calculations based on the simplified model have only considered the energy exchange in the boundless condition.Under experimental conditions, however, the gas active medium must be guided by the metal waveguide. In this paper, we have developed a model of the energy exchange between a train of micro-bunches and a gas mixture active medium in a waveguide boundary for the first time, based on the theory of electromagnetic fields, and made detailed analysis and calculations with Math CAD. The results show that energy density can be optimized to a certain value to get the maximum energy exchange.

关 键 词：PASER train of micro-bunches active gas mixture medium cylinder waveguide 

分 类 号：O572.211[理学—粒子物理与原子核物理]