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Wakefield damping in a pair of X-band accelerators for linear colliders

Roger M. Jones*, Christopher E. Adolphsen, Juwen W. Wang, and Zenghai Li

  • Stanford Linear Accelerator Center, 2575 Sand Hill Road, Menlo Park, California 94025, USA

  • *Author to whom correspondence may be addressed: Department of Physics and Astronomy, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom. Electronic address: roger.jones@manchester.ac.uk
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Phys. Rev. ST Accel. Beams 9, 102001 – Published 2 October, 2006

DOI: https://doi.org/10.1103/PhysRevSTAB.9.102001

Abstract

We consider the means to damp the wakefield left behind ultrarelativistic charges. In particular, we focus on a pair of traveling wave accelerators operating at an X-band frequency of 11.424 GHz. In order to maximize the efficiency of acceleration, in the context of a linear collider, multiple bunches of charged particles are accelerated within a given pulse of the electromagnetic field. The wakefield left behind successive bunches, if left unchecked, can seriously disturb the progress of trailing bunches and can lead to an appreciable dilution in the emittance of the beam. We report on a method to minimize the influence of the wakefield on trailing bunches. This method entails detuning the characteristic mode frequencies which make up the electromagnetic field, damping the wakefield, and interleaving the frequencies of adjacent accelerating structures. Theoretical predictions of the wakefield and modes, based on a circuit model, are compared with experimental measurements of the wakefield conducted within the ASSET facility at SLAC. Very good agreement is obtained between theory and experiment and this allows us to have some confidence in designing the damping of wakefields in a future linear collider consisting of several thousand of these accelerating structures.

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References (19)

  1. International Linear Collider Technical Review Committee (ILC-TRC) Second Report, 2003, SLAC-R-606.
  2. International Linear Collider Technical Review Final Report, 2004 (http://www.linearcollider.org).
  3. The TESLA Technical Design Report, edited by R. Brinkman , 2001, DESY Report 2001-33.
  4. R. R. Larsen and G. A. Loew, SLAC-TN-62-57, 1962.
  5. C. Adolphsen, presented at the 2005 Particle Accelerator Conference (PAC 05), Knoxville, Tennessee, 2005.
  6. K. L. F. Bane, P. B. Wilson, and T. Weiland, AIP Conf. Proc. 127, 875 (1985).
  7. K. L. F. Bane, SLAC-PUB-9663, 2003.
  8. X. Zhan, Ph.D. thesis, Stanford University, 1997.
  9. H. Braun et al., Updated CLIC parameters 2005, CLIC note 627, 2006.
  10. J.-Y. Raguin, D. Schulte, I. Syratchev, I. Wilson, and W. Wuensch, Proceedings of LINAC2002, Gyeongju, Korea, 2002.
  11. The MAFIA Collaboration, MAFIA-L, CST, GmbH, Darmstadt, 1994.
  12. Z. Li et al., presented at the 9th European Particle Accelerator Conference (EPAC04), Lucerne, Switzerland, 2004.
  13. K. L. F. Bane and R. L. Gluckstern, Part. Accel. 42, 123 (1993).
  14. P. B. Wilson, SLAC-PUB-4547; SLAC-AP-66; SLAC-AP-066, 1989.
  15. C. Adolphsen et al., Phys. Rev. Lett. 74, 2475 (1995).
  16. K. L. F. Bane, C. Adolphsen, K. Kubo, and K. A. Thompson, The 4th European Particle Accelerator Conference (EPAC94), London, England, 1994.
  17. K. Thompson and R. D. Ruth, Phys. Rev. D 41, 964 (1990).
  18. R. Assman et al., SLAC-PUB AP-103, 1997.
  19. P. Tenenbaum, LCC-Note-0138, 2004.

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Phys. Rev. ST Accel. Beams 9, 102001– Published 2 October, 2006
  • Received 28 July 2006
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