Limits of Beam Eztraction from Single-Component Plasmas

摘要：

Beams of antiparticles are useful for applications ranging from positron-atomic physics to materials analysis 1. Tailored positron beams from single-component plasmas confined in Penning-Malmberg traps have proven useful in a wide range of applications 2, 3. We describe here studies of the factors that limit the transverse spatial extent of such beams in the case where centerline extraction is used to minimize the transverse beam width 4, 5. This technique exploits the fact that the plasma potential is largest near the plasma center; thus when the confining potential at one end is carefully lowered, a beam is formed that is comprised of only particles from the region near r=0.

作者: T.R.Weber J.R.Danielson C.M.Surko

作者单位: University of California,San Diego

会议类型: 国际会议

会议名称: 第九届国际正电子与正电子素国际会议(9th International Workshop on Positron and Positronium Chemistry)(PPC–9)

会议地点: 武汉

会议语种:英文

页码: 125

在线出版日期: 2008-05-11（万方平台首次上网日期，不代表论文的发表时间）