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Open Access Publications from the University of California

Intrinsic Stabilization of the Drive Beam in Plasma-Wakefield Accelerators.

  • Author(s): Martinez de la Ossa, A
  • Mehrling, TJ
  • Osterhoff, J
  • et al.

The hose instability of the drive beam constitutes a major challenge for the stable operation of plasma-wakefield accelerators. In this Letter, we show that drive beams with a transverse size comparable to the plasma blowout radius generate a wake with a varying focusing along the beam, which leads to a rapid detuning of the slice-betatron oscillations and suppresses the instability. This intrinsic stabilization principle provides an applicable and effective method for the suppression of the hosing of the drive beam and allows for a stable acceleration process.

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