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Title: Emittance growth due to misalignment in multistage laser-plasma accelerators

Abstract

Beam degradation is examined in a laser-plasma accelerator stage with a parabolic plasma channel when the laser pulse and/or the electron beam enters the channel off axis. Betatron oscillations in the beam become incoherent, resulting in a net increase of beam emittance through phase mixing. A quantitative model for transverse emittance growth due to misalignment in multistage accelerators, valid in the linear regime, is presented and compared with particle-in-cell simulations. The model is applied to a chain of laser-plasma accelerator stages, and tolerances are derived on the initial energy spread of the electron beam and misalignment in the multistage structure, with repercussions in high-energy physics applications of laser-plasma accelerators.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1518515
Alternate Identifier(s):
OSTI ID: 1527130
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Name: Physical Review Accelerators and Beams Journal Volume: 22 Journal Issue: 5; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Thévenet, Maxence, Lehe, Rémi, Schroeder, Carl B., Benedetti, Carlo, Vay, Jean-Luc, Esarey, Eric, and Leemans, Wim P. Emittance growth due to misalignment in multistage laser-plasma accelerators. United States: N. p., 2019. Web. doi:10.1103/PhysRevAccelBeams.22.051302.
Thévenet, Maxence, Lehe, Rémi, Schroeder, Carl B., Benedetti, Carlo, Vay, Jean-Luc, Esarey, Eric, & Leemans, Wim P. Emittance growth due to misalignment in multistage laser-plasma accelerators. United States. doi:10.1103/PhysRevAccelBeams.22.051302.
Thévenet, Maxence, Lehe, Rémi, Schroeder, Carl B., Benedetti, Carlo, Vay, Jean-Luc, Esarey, Eric, and Leemans, Wim P. Tue . "Emittance growth due to misalignment in multistage laser-plasma accelerators". United States. doi:10.1103/PhysRevAccelBeams.22.051302.
@article{osti_1518515,
title = {Emittance growth due to misalignment in multistage laser-plasma accelerators},
author = {Thévenet, Maxence and Lehe, Rémi and Schroeder, Carl B. and Benedetti, Carlo and Vay, Jean-Luc and Esarey, Eric and Leemans, Wim P.},
abstractNote = {Beam degradation is examined in a laser-plasma accelerator stage with a parabolic plasma channel when the laser pulse and/or the electron beam enters the channel off axis. Betatron oscillations in the beam become incoherent, resulting in a net increase of beam emittance through phase mixing. A quantitative model for transverse emittance growth due to misalignment in multistage accelerators, valid in the linear regime, is presented and compared with particle-in-cell simulations. The model is applied to a chain of laser-plasma accelerator stages, and tolerances are derived on the initial energy spread of the electron beam and misalignment in the multistage structure, with repercussions in high-energy physics applications of laser-plasma accelerators.},
doi = {10.1103/PhysRevAccelBeams.22.051302},
journal = {Physical Review Accelerators and Beams},
number = 5,
volume = 22,
place = {United States},
year = {2019},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevAccelBeams.22.051302

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Cited by: 1 work
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