An Energy Filter for Slow Positron Beam Using Cosine Coils

• 作者: B.Y.Wang R.S.Yu
• 来源期刊: 北京同步辐射装置：英文版
• 学科: 物理学
• 关键词: 正负电子对撞机 正电子束 能量滤器 速度滤器
• 年，卷（期）: 2001,（1）
• 页码范围: 162-165
• 页数: 4页
• 分类号: O572.214

摘要

A novel charged-particle velocity filter for slow positron beam has been successfully built and tested.It is a pure magnetic system composed of three magnetic fields,two of them are pure dipole magnetic fields generated by two symmetrically put cosine coils.The physical principle and the performance of the cosine coils are reviewed.