强流电子束中ν/γ的物理意义  

Physics sense of ν/γ parameter in intense relativistic electron beam

作　　者：刘锡三[1] 

机构地区：[1]中国工程物理研究院应用电子学所研究所,四川绵阳621900

出　　处：《强激光与粒子束》2007年第6期1005-1007,共3页High Power Laser and Particle Beams

摘　　要：从Lawson和Humphries公式以及强流束中的储能导出ν/γ的表达式(ν为Budker参数,γ为相对论因子),对它的物理含义作了充分说明。可用它来表征强流束的总体性质,它代表了强流束的自场横向电磁能与轴向动能之比。ν/γ is an important physical parameter. ν,γ are the Budker parameter and the relativistic mass factor, respectively. In this paper, its basic physical sense is expounded from three aspects of Lawson and Humphries formula and energy storage in intense relativistic electron beam. It can be expressed as the ratio of transverse electro-magnetic energy in the beam to its axial motion kinetic energy. For ν/γ closed to or greater than 1, there is an important self field effect in intense relativistic electron beam transport.

关 键 词：强流电子束 Budker参数 相对论因子 Lawson限制电流 Alfven限制电流 

分 类 号：TL503[核科学技术—核技术及应用]