Plasma wakefield acceleration experiments using two subpicosecond electron bunches
Muggli, P.
Kimura, W.D.
Kallos, E.
Katsouleas, T.C.
Kusche, K.P.
Pavlishin, I.V.
Stolyarov, D.
Yakimenko, V.E.
Univ. of Southern California, Los Angeles;
This paper appears in: Particle Accelerator Conference, 2007. PAC. IEEE
Publication Date: 25-29 June 2007
On page(s): 3073-3075
Location: Albuquerque, NM,
ISBN: 978-1-4244-0916-7
INSPEC Accession Number: 9850674
Digital Object Identifier: 10.1109/PAC.2007.4440672
Current Version Published: 2008-01-28
Abstract
Two subpicosecond electron bunches, separated in energy by approximately 2 MeV and in time by 0.5-1 ps, are sent through a capillary discharge plasma. The plasma density is varied from ~1014 cm3 to ~1018 cm3. A 1-D plasma wakefield acceleration (PWFA) model indicates the net wakefield produced by the bunches will depend on their relative charge, temporal separation, and the plasma density. The wakefield of the first bunch will also affect the amount of energy gain or loss of the second bunch. During measurements of the energy spectrum of the bunches, we observed a difference in the amount of loss depending on the plasma density. Indication of gain was also observed.
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