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Title: Optical plasma torch electron bunch generation in plasma wakefield accelerators

Abstract

A novel, flexible method of witness electron bunch generation in plasma wakefield accelerators is described. A quasistationary plasma region is ignited by a focused laser pulse prior to the arrival of the plasma wave. This localized, shapeable optical plasma torch causes a strong distortion of the plasma blowout during passage of the electron driver bunch, leading to collective alteration of plasma electron trajectories and to controlled injection. In conclusion, this optically steered injection is more flexible and faster when compared to hydrodynamically controlled gas density transition injection methods

Authors:
; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Univ. of California, Los Angeles, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1213608
Alternate Identifier(s):
OSTI ID: 1455012
Grant/Contract Number:  
SC0009533; FG02-07ER46272; FG03-92ER40693; AC02-05CH11231
Resource Type:
Published Article
Journal Name:
Physical Review Special Topics. Accelerators and Beams
Additional Journal Information:
Journal Name: Physical Review Special Topics. Accelerators and Beams Journal Volume: 18 Journal Issue: 8; Journal ID: ISSN 1098-4402
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Wittig, G., Karger, O., Knetsch, A., Xi, Y., Deng, A., Rosenzweig, J. B., Bruhwiler, D. L., Smith, J., Manahan, G. G., Sheng, Z. -M., Jaroszynski, D. A., and Hidding, B. Optical plasma torch electron bunch generation in plasma wakefield accelerators. United States: N. p., 2015. Web. doi:10.1103/PhysRevSTAB.18.081304.
Wittig, G., Karger, O., Knetsch, A., Xi, Y., Deng, A., Rosenzweig, J. B., Bruhwiler, D. L., Smith, J., Manahan, G. G., Sheng, Z. -M., Jaroszynski, D. A., & Hidding, B. Optical plasma torch electron bunch generation in plasma wakefield accelerators. United States. doi:https://doi.org/10.1103/PhysRevSTAB.18.081304
Wittig, G., Karger, O., Knetsch, A., Xi, Y., Deng, A., Rosenzweig, J. B., Bruhwiler, D. L., Smith, J., Manahan, G. G., Sheng, Z. -M., Jaroszynski, D. A., and Hidding, B. Mon . "Optical plasma torch electron bunch generation in plasma wakefield accelerators". United States. doi:https://doi.org/10.1103/PhysRevSTAB.18.081304.
@article{osti_1213608,
title = {Optical plasma torch electron bunch generation in plasma wakefield accelerators},
author = {Wittig, G. and Karger, O. and Knetsch, A. and Xi, Y. and Deng, A. and Rosenzweig, J. B. and Bruhwiler, D. L. and Smith, J. and Manahan, G. G. and Sheng, Z. -M. and Jaroszynski, D. A. and Hidding, B.},
abstractNote = {A novel, flexible method of witness electron bunch generation in plasma wakefield accelerators is described. A quasistationary plasma region is ignited by a focused laser pulse prior to the arrival of the plasma wave. This localized, shapeable optical plasma torch causes a strong distortion of the plasma blowout during passage of the electron driver bunch, leading to collective alteration of plasma electron trajectories and to controlled injection. In conclusion, this optically steered injection is more flexible and faster when compared to hydrodynamically controlled gas density transition injection methods},
doi = {10.1103/PhysRevSTAB.18.081304},
journal = {Physical Review Special Topics. Accelerators and Beams},
number = 8,
volume = 18,
place = {United States},
year = {2015},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: https://doi.org/10.1103/PhysRevSTAB.18.081304

Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

Figures / Tables:

FIG. 1 FIG. 1: Experimental setup: An electron beam driver and one or two moderately synchronized laser pulses interact in an underdense medium with (at least) two species with different ionization thresholds such as hydrogen and helium. One Ti:sapphire laser pulse is focused to intensities of the I ≈ 1014–15 W=cm2 levelmore » in order to generate the localized hydrogen/helium plasma torch in the path of the electron beam driven blowout. In contrast to the self-ionized cases (i) and (ii), for case (iii) another, high-energy fraction of the laser pulse is used to preionize the hydrogen in order to allow for a stronger blowout.« less

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