Beam lifetimes for low-charge-state heavy ions in the GSI storage rings

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• 作者：R.D. DuBois ; O. de Lucio ; M. Thomason ; G. Weber ; Th. Stö ; hlker ; K. Beckert ; P. Beller ; F. Bosch ; C. Br ; au ; A. Gumberidze ; S. Hagmann ; C. Kozhuharov ; F. Nolden ; R. Reuschl ; J. Rzadkjewicz ; P. Spill
• 关键词：Electron loss ; Stripping ; Heavy ion ; Storage ring
• 刊名：Nuclear Instruments and Methods in Physics Research Section B ; Beam Interactions with Materials and Atoms
• 出版年：2007
• 期刊代码：42_0168583x
• 类别：ph
• 出版时间：August 2007
• 卷：261
• 期：1-2
• 页码：230-233
• 文件大小：166 K

摘要

Lifetimes for 10–50 MeV/u U²⁸⁺ ions were measured for base vacuum conditions in the ESR storage ring at GSI-Darmstadt. The lifetimes are due to total electron loss from U²⁸⁺ resulting from interactions with background gases in the ring. Lifetimes were also measured for interactions with H₂ and N₂ targets. These data provide information about the relative magnitudes and energy dependences of the stripping cross-sections resulting from interactions with H₂ and N₂, gases which represent the primary constituents in high and ultra-high vacuum environments.