Self-supporting isotopic chromium thin films

被引:0
作者
Birgit Kindler
Andreas Beusch
Willi Hartmann
Annett Hübner
Bettina Lommel
Jutta Steiner
Vera Yakusheva
机构
[1] GSI Helmholtzzentrum für Schwerionenforschung GmbH,
来源
Journal of Radioanalytical and Nuclear Chemistry | 2014年 / 299卷
关键词
Chromium (Cr); Thermal evaporation; Self-supporting target; Stress relief;
D O I
暂无
中图分类号
学科分类号
摘要
Chromium is a shiny, hard and malleable metal, which can be cold rolled in good quality to a thickness below a micrometer. Thinner foils can be obtained by electron-beam gun evaporation or by electroplating. Isotopically enriched material typically has not the quality for cold rolling processes. As 50Cr has a natural abundance of only 4.5 % the enriched material is rather expensive so electron-beam deposition is not a good option because of the inherently low yield of the method. In this contribution we present the preparation of self-supporting 50Cr thin films by thermal evaporation out of a tantalum crucible as an alternative to electrodeposition. With the described method we obtained self-supporting films with a thickness between 250 and 620 μg/cm².
引用
收藏
页码:1141 / 1143
页数:2
相关论文
共 7 条
[1]  
Kuehn PR(1972)undefined Nucl Instrum Methods 102 403-407
[2]  
O’Donnel FR(1995)undefined Nucl Instrum and Methods A 362 94-97
[3]  
Kobisk EH(2002)undefined Nucl Instrum and Methods in Phys Res A 480 44-49
[4]  
Manente G(1967)undefined Nucl Instrum and Methods 53 357-358
[5]  
Blunt D(undefined)undefined undefined undefined undefined-undefined
[6]  
Stoner JO(undefined)undefined undefined undefined undefined-undefined
[7]  
Arnison GTJ(undefined)undefined undefined undefined undefined-undefined