Improvement of the Energy Stability of the Single Ion Microbeam

• 作 者: 詹福如 齐学红 许明亮 陈连运 余增亮
• 机 构: Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China,
• 出 处: Plasma Science and Technology
• 发表日期: 2008年02期
• 关键词: instability simplified facility radius vibrating render deliver eliminate sample

Energy instability strongly affects the state and the beam size of the single ion mi-crobeam.A facility based on the Generating Voltmeter was developed to improve the energystability of the CAS-LIBB (Chinese Academy of Sciences,key laboratory of ion beam bioengineer-ing) single ion microbeam.This paper presents the analysis of the energy instability of the singleion microbeam.A simplified theoretical model is set up to calculate the relationship between theenergy instability and the beam spot size.By using this technique,the energy instability is ad-justed to about 1%.Stable run-time is over 6 hours.The radius of the single ion beam is reducedby 10% compared to the previous one.

Energy instability strongly affects the state and the beam size of the single ion mi-crobeam. A facility based on the Generating Voltmeter was developed to improve the energystability of the CAS-LIBB (Chinese Academy of Sciences, key laboratory of ion beam bioengineer-ing ) single ion microbeam.This paper presents the analysis of the energy instability of the singleion microbeam. A simplified theoretical model is set up to calculate the relationship between theenergy instability and the beam spot size.By using this technique, the energy instability is ad- justed to about 1% .Stable run-time is over 6 hours. The radius of the single ion beam is reducedby 10% compared to the previous one.