Multi-GeV Energy Gain in a Plasma-Wakefield Accelerator

M. J. Hogan, C. D. Barnes, C. E. Clayton, F. J. Decker, S. Deng, P. Emma, C. Huang, R. H. Iverson, D. K. Johnson, C. Joshi, T. Katsouleas, P. Krejcik, W. Lu, K. A. Marsh, W. B. Mori, P. Muggli, C. L. O’Connell, E. Oz, R. H. Siemann, and D. Walz
Phys. Rev. Lett. 95, 054802 – Published 28 July 2005


A plasma-wakefield accelerator has accelerated particles by over 2.7 GeV in a 10 cm long plasma module. A 28.5 GeV electron beam with 1.8×1010 electrons is compressed to 20μm longitudinally and focused to a transverse spot size of 10μm at the entrance of a 10 cm long column of lithium vapor with density 2.8×1017atoms/cm3. The electron bunch fully ionizes the lithium vapor to create a plasma and then expels the plasma electrons. These electrons return one-half plasma period later driving a large amplitude plasma wake that in turn accelerates particles in the back of the bunch by more than 2.7 GeV.

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  • Received 25 March 2005


©2005 American Physical Society

Authors & Affiliations

M. J. Hogan1, C. D. Barnes1, C. E. Clayton2, F. J. Decker1, S. Deng3, P. Emma1, C. Huang2, R. H. Iverson1, D. K. Johnson2, C. Joshi2, T. Katsouleas3, P. Krejcik1, W. Lu2, K. A. Marsh2, W. B. Mori2, P. Muggli3, C. L. O’Connell1, E. Oz3, R. H. Siemann1, and D. Walz1

  • 1Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309, USA
  • 2University of California, Los Angeles, California 90095, USA
  • 3University of Southern California, Los Angeles, California 90089, USA

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Vol. 95, Iss. 5 — 29 July 2005

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