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Paper   IPM / Particles And Accelerator / 13782
School of Particles and Accelerator
  Title:   Design and Beam loading-Simulations of a Pre-Bunching Cavity for the CLIC Drive Beam Injector
  Author(s): 
1.  Mohsen Dayyani Kelisani
2.  Seyad Hamed Shaker
3.  S Doebert
  Status:   In Proceedings
  Proceeding: CLIC-Note-1059, 27th Linear Accelerator Conference, Geneva, Switzerland, 31 Aug - 5 Sep 2014, pp.THPP028
  Year:  2014
  Supported by:  IPM
  Abstract:
The CLIC project is developing a multi-TeV center- of - mass electron-positron collider based on high gradient, room-temperature accelerating structures and a novel two-beam RF power generation scheme. The RF power for the CLIC accelerating structures is provided by the so- called drive beam, which is a low energy, high current electron beam. The drive beam will be generated from a high current (up to 5 A) pulsed (0.142 ms) thermionic electron gun and then followed by a bunching system. The bunching system is composed of three sub-harmonic bunchers operating at a frequency of 499.75 MHz, a pre- buncher and a traveling wave buncher both operating at 999.5 MHz. The pre-buncher cavity, which has a great importance on minimization the satellite population, should be designed with special consideration of the high beam loading effect due to the high current beam crossing the cavity. In this work, we report on RF design, analytical beam loading calculations and simulations for the CLIC drive beam injector pre-buncher cavity

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