中国物理B ›› 2005, Vol. 14 ›› Issue (3): 494-499.doi: 10.1088/1009-1963/14/3/011

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Multipacting phenomenon at high electric fields of superconducting cavities

D.Proch1, 朱凤2, 郝建奎2   

  1. (1)Deutsches Electronen-Synchrotron, Notkestrasse 85, 22603 Hamburg, Germany; (2)Institute of Heavy Ion Physics, Peking University, Beijing 100871, China
  • 收稿日期:2004-05-14 修回日期:2004-07-16 出版日期:2005-03-02 发布日期:2005-03-02

Multipacting phenomenon at high electric fields of superconducting cavities

Zhu Feng (朱凤)a, Proch D.b, Hao Jian-Kui (郝建奎)a   

  1. a Institute of Heavy Ion Physics, Peking University, Beijing 100871, China; b Deutsches Electronen-Synchrotron, Notkestrasse 85, 22603 Hamburg, Germany
  • Received:2004-05-14 Revised:2004-07-16 Online:2005-03-02 Published:2005-03-02

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摘要： Recently multipacting (MP) recalculation of the TeV Energy Superconducting Linear Accelerator (TESLA) resonator was performed. In addition to the normal MP which occurs at a peak electric field of around 40MV/m for the TESLA cavity, another type of multipacting with resonant electron trajectory that is far from the equator is also seen. It occurs at a gradient around 60MV/m to 70MV/m. This result seems to explain some experimental observations.

关键词: multipacting, TESLA cavity

Abstract: Recently multipacting (MP) recalculation of the TeV Energy Superconducting Linear Accelerator (TESLA) resonator was performed. In addition to the normal MP which occurs at a peak electric field of around 40MV/m for the TESLA cavity, another type of multipacting with resonant electron trajectory that is far from the equator is also seen. It occurs at a gradient around 60MV/m to 70MV/m. This result seems to explain some experimental observations.

Key words: multipacting, TESLA cavity

中图分类号:  (Accelerators)

  • 29.20.-c
85.25.-j (Superconducting devices)