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APS » Journals » Phys. Rev. Lett. » Volume 95 » Issue 19
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Phys. Rev. Lett. 95, 195002 (2005) [4 pages]

Effects of Ion Motion in Intense Beam-Driven Plasma Wakefield Accelerators

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J. B. Rosenzweig1, A. M. Cook1, A. Scott1,2, M. C. Thompson1, and R. B. Yoder1,3
1Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
2Department of Physics, University of California Santa Barbara, Santa Barbara, California 93016, USA
3Department of Physics, Manhattan College, 4513 Manhattan College Parkway, Riverdale, New York 10471, USA

Received 27 June 2005; published 31 October 2005

Recent proposals for using plasma wakefield accelerators (PWFA) as a component of a linear collider have included intense electron beams with densities many times in excess of the plasma density. The beam’s electric fields expel the plasma electrons from the beam path to many beam radii in this regime. We analyze here the motion of plasma ions under the beam fields, and find for a proposed PWFA collider scenario that the ions completely collapse inside of the beam. Simulations of ion collapse are presented. Implications of ion motion on the feasibility of the PWFA-based colliders are discussed.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.195002
DOI:
10.1103/PhysRevLett.95.195002
PACS:
52.40.Mj, 29.17.+w, 29.27.−a, 52.75.Di
 
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