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Title: Head erosion with emittance growth in PWFA

Abstract

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.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  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)
Publication Date:
OSTI Identifier:
22075891
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1507; Journal 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); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

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, Max Planck Institute for Physics, Munich, and University of California, Los Angeles, CA 90095. Head erosion with emittance growth in PWFA. United States: N. p., 2012. Web. doi:10.1063/1.4773762.
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, Max Planck Institute for Physics, Munich, & University of California, Los Angeles, CA 90095. Head erosion with emittance growth in PWFA. United States. doi:10.1063/1.4773762.
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, Max Planck Institute for Physics, Munich, and University of California, Los Angeles, CA 90095. Fri . "Head erosion with emittance growth in PWFA". United States. doi:10.1063/1.4773762.
@article{osti_22075891,
title = {Head erosion with emittance growth in PWFA},
author = {Li, S Z and Adli, E and England, R J and Frederico, J and Gessner, S J and Hogan, M J and Litos, M D and Walz, D R and Muggli, P and An, W and Clayton, C E and Joshi, C and Lu, W and Marsh, K A and Mori, W and Vafaei, N and Max Planck Institute for Physics, Munich and University of California, Los Angeles, CA 90095},
abstractNote = {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.},
doi = {10.1063/1.4773762},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1507,
place = {United States},
year = {2012},
month = {12}
}