Argonne国家实验室ECR离子源在固体材料离子束流产生方面的研究进展(英文)

查看全文 作　　者：[1]R.Vondrasek;[1]R.Scott;[1]R.Pardo 机构地区：[1]Argonne National Laboratory,9700 S.Cass Ave,Argonne,IL 60439,USA 出　　处：《Chinese Physics C》索引2007年第31卷第S1期,共4页 基　　金：Supported by the U.S.Department of Energy,Office of Nuclear Physics,contract W-31-109-ENG-38 摘　　要：Development work with solid materials at the Argonne National Laboratory ECR ion sources has been focused on two areas-introduction of materials with low vapour pressures,and increasing the beam intensities of heavy beams(i.e.-lead and uranium).An induction oven,with a demonstrated operating temperature extending to 2000℃,has been utilized to produce a Ti-50 beam with an intensity of 5.5eμA (12+).In addition,a refinement of the sputter technique has been employed which has resulted in a 42% improvement in lead beam intensities.Details of the induction oven as well as the refined sputter technique will be presented. 关 键 词：ECR ion source SPUTTER INDUCTION OVEN