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Paper   IPM / Particles / 13388
School of Particles and Accelerator
  Title:   Sub-Harmonic Buncher Design for the CLIC Drive Beam Injector
  Author(s): 
1.  shahin Sanaye Hajari
2.  Seyed Hamed Shaker
3.  S Doebert
  Status:   In Proceedings
  Proceeding: Proceedings of IPAC2013, Shanghai, China
  Year:  2013
  Pages:   1670-1672
  Supported by:  IPM
  Abstract:
The CLIC (Compact LInear Collider) is based on two beam concept where a high current drive beam provides the energy needed for acceleration of the main beam. The CLIC drive beam accelerator starts with a high current injector using a sophisticated sub-harmonic bunching system. This paper will focus on the design of the Sub Harmonic Bunchers (SHBs) the first RF components of the injector. A backward traveling wave structure has been optimized for this task. It will be shown also how to avoid asymmetrical fields inside the coupler cells and how to compensate beam loading by changing the phase velocity in comparison to the beam velocity

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