It is a modern one in the world with its advantage : fierce current , high electricity state , high purity , lot kinds of ions , reliable , easy operation Mevva离子注入机突出的优点有:强束流:高电荷态高纯度引出离子种类多大面积引出稳定可靠,易操作。
The effect of field strength , initial phase , bunch shape and charge on electron beam transverse emittance is also explored by numeric simulation method 利用数值模拟方法研究了加速场强、注入相位、束团大小、形状、电荷等因素对束流横向发射度产生的影响。
Obtaining a high quality beam bears on many factors at the exit of a high energy electron linear accelerator ( linac ) , beam orbit effect is one of the most important factors 电子直线加速器末端良好束流品质的获得和很多因素有关,束流轨道的影响是其中重要因素之一。
The concept , characteristics and application of high energy beam machining , electrical discharge machining , electrochemical machining and material abscission machining separately discuss 分别论述了高能束流加工、电火花加工、电解加工,以及物料切蚀加工的概念、特征与应用状况。
The status of ribll and some new experiments performed since the first operation of ribll in 1997 are described . some of the experimental results are introduced and discussed 摘要简要介绍了兰州放射性束流装置建成一年多来所开展的实验工作和现状,并对取得的实验结果进行了讨论与分析。
The trajectory of electron , the electronic energy , emittance and the bunch length in the accelerating process are presented . primary properties parameters are obtained on different positions 虽然第一加速段之前的漂移距离较长,但缩短该漂移段距离的模拟表明对提高束流性能的作用不大。
We studied the factor that influence the quality of gaas , algaas and ingaas by mbe , and studied the growth temperature , growth time and the flux ratio of v - iii beam 研究了影响mbe生长gaas 、 algaas和ingaas等单晶材料质量的一些因素,对mbe生长温度、生长时间和生长时的-族束流比进行了研究。
Plasma immersion ion implantation ( phi ) seems to be an alternative approach to reduce the manufacture cost of soi wafers due to its large ion current and independence of implantation time to the wafer size 等离子体离子注入( p )技术由于其强束流和大面积注入方式而有希望在soi材料制备方面获得突破。
( 4 ) chapter vi . the theory of ion curren extraction of rf ion source is investigated , the reason of emission surface formation and its effect on ion curren extraction are reasearched emphatically ( 4 )对高频离子源的束流引出原理作了理论推导和分析,着重研究了发射面的形成及其对引出束流特性的影响。
Finally , the characteristics of ion curren extraction in different conditions are simulationed with magic software , and the parameter of best emission surface is obtained 最后,采用magic程序对高频离子源不同引出参数下的束流引出特性进行了数值模拟,得到了获得最佳的引出离子束所要求的等离子体发射面参数。