Head erosion with emittance growth in PWFA

Journal Article · Fri Dec 21 00:00:00 EST 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4773762· OSTI ID:22075891

Li, S Z; Adli, E; England, R J; Frederico, J; Gessner, S J; Hogan, M J; Litos, M D; Walz, D R; Muggli, P; An, W; Clayton, C E; Joshi, C; Lu, W; Marsh, K A; Mori, W; Vafaei, N ^[1]

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1. SLAC National Accelerator Laboratory, Menlo Park, CA 94025 (United States) and SLAC National Accelerator Laboratory, Menlo Park, CA 94025 (United States) and University of Oslo, Oslo, N-0316 (Norway) and SLAC National Accelerator Laboratory, Menlo Park, CA 94025 (United States)

Head erosion is one of the limiting factors in plasma wakefield acceleration (PWFA). We present a study of head erosion with emittance growth in field-ionized plasma from the PWFA experiments performed at the FACET user facility at SLAC. At FACET, a 20.3 GeV bunch with 1.8 Multiplication-Sign 10{sup 10} electrons is optimized in beam transverse size and combined with a high density lithium plasma for beam-driven plasma wakefield acceleration experiments. A target foil is inserted upstream of the plasma source to increase the bunch emittance through multiple scattering. Its effect on beamplasma interaction is observed with an energy spectrometer after a vertical bend magnet. Results from the first experiments show that increasing the emittance has suppressed vapor field-ionization and plasma wakefields excitation. Plans for the future are presented.

• OSTI ID: 22075891
• Journal Information: AIP Conference Proceedings, Vol. 1507, Issue 1; Conference: 15. advanced accelerator concepts workshop, Austin, TX (United States), 10-15 Jun 2012; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
BEAM BUNCHING
BEAM EMITTANCE
BEAM TRANSPORT
BEAM-PLASMA SYSTEMS
ELECTRONS
EROSION
EXCITATION
GEV RANGE
IONIZATION
LITHIUM
MULTIPLE SCATTERING
PLASMA
PLASMA DENSITY
PLASMA GUNS
STANFORD LINEAR ACCELERATOR CENTER
WAKEFIELD ACCELERATORS