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1. 北京师范大学低能核物理研究所射线束技术与材料改性教育部重点实验室 北京市辐射中心
2. 100875 北京 100875 北京 100875 北京 100875 北京 100875 北京,北京,100875
Published:01 February 2006
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[1]吴先映,张孝吉,李强,张胜基,张荟星,刘安东.MEVVA离子源凸形引出电极的研制[J].核技术,2006(02):93-96.
WU Xianying ZHANG Xiaoji LI Qiang ZHANG Shengji ZHANG Huixing LIU Andong. Gibbous extraction electrode for MEVVA ion source[J]. Nuclear techniques, 2006, (2): 93-96.
介绍了金属蒸气真空弧(Metal vapor vacuum arc
MEVVA)离子源的凸形引出电极的研制。研究表明
凸形引出电极可以完成离子束的强制发散功能
从而在较短的引出距离和较小的引出电极面积的条件下得到大的束斑和均匀可应用的束流分布。通过对几种不同的电极结构的比较研究
得到了满足应用要求的凸形引出电极。
Gibbous extraction electrode for MEVVA ion source is introduced. It is indicated that gibbous extraction electrode can be used to force the ion beam spreading widely like a convex. So intenser ion beam and larger uniform beam spot can be obtained in smaller extraction area and shorter extraction distance. Gibbous extraction electrode which can meet the demand of applications was got by experimentally comparing several different structures of electrode.
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