Temporal evolution of longitudinal bunch profile in a laser wakefield accelerator

Temporal evolution of longitudinal bunch profile in a laser wakefield accelerator

We present single-shot measurements of the longitudinal bunch profile from a laser-wakefield accelerator with sub-fs resolution, based on detection of coherent transition radiation in a broad spectral range. A previously developed phase retrieval algorithm enables reconstruction of the bunch profile...

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Main Authors: M. Heigoldt, A. Popp, K. Khrennikov, J. Wenz, S. W. Chou, S. Karsch, S. I. Bajlekov, S. M. Hooker, B. Schmidt
Format: Article
Language:English
Published: American Physical Society 2015-12-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.18.121302
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spelling doaj-bb864f3a106b4f41873eecaa0018d50d2020-11-25T02:40:40ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022015-12-01181212130210.1103/PhysRevSTAB.18.121302Temporal evolution of longitudinal bunch profile in a laser wakefield acceleratorM. HeigoldtA. PoppK. KhrennikovJ. WenzS. W. ChouS. KarschS. I. BajlekovS. M. HookerB. SchmidtWe present single-shot measurements of the longitudinal bunch profile from a laser-wakefield accelerator with sub-fs resolution, based on detection of coherent transition radiation in a broad spectral range. A previously developed phase retrieval algorithm enables reconstruction of the bunch profile without prior assumptions about its shape. In this study, a variable-length gas target is used to explore the dynamics of bunch evolution. Our results show that once the laser energy is depleted the time structure of the generated electron beam changes from a single bunch to a double bunch structure, well suited for driver-witness type experiments.http://doi.org/10.1103/PhysRevSTAB.18.121302
collection DOAJ
language English
format Article
sources DOAJ
author M. Heigoldt
A. Popp
K. Khrennikov
J. Wenz
S. W. Chou
S. Karsch
S. I. Bajlekov
S. M. Hooker
B. Schmidt
spellingShingle M. Heigoldt
A. Popp
K. Khrennikov
J. Wenz
S. W. Chou
S. Karsch
S. I. Bajlekov
S. M. Hooker
B. Schmidt
Temporal evolution of longitudinal bunch profile in a laser wakefield accelerator
Physical Review Special Topics. Accelerators and Beams
author_facet M. Heigoldt
A. Popp
K. Khrennikov
J. Wenz
S. W. Chou
S. Karsch
S. I. Bajlekov
S. M. Hooker
B. Schmidt
author_sort M. Heigoldt
title Temporal evolution of longitudinal bunch profile in a laser wakefield accelerator
title_short Temporal evolution of longitudinal bunch profile in a laser wakefield accelerator
title_full Temporal evolution of longitudinal bunch profile in a laser wakefield accelerator
title_fullStr Temporal evolution of longitudinal bunch profile in a laser wakefield accelerator
title_full_unstemmed Temporal evolution of longitudinal bunch profile in a laser wakefield accelerator
title_sort temporal evolution of longitudinal bunch profile in a laser wakefield accelerator
publisher American Physical Society
series Physical Review Special Topics. Accelerators and Beams
issn 1098-4402
publishDate 2015-12-01
description We present single-shot measurements of the longitudinal bunch profile from a laser-wakefield accelerator with sub-fs resolution, based on detection of coherent transition radiation in a broad spectral range. A previously developed phase retrieval algorithm enables reconstruction of the bunch profile without prior assumptions about its shape. In this study, a variable-length gas target is used to explore the dynamics of bunch evolution. Our results show that once the laser energy is depleted the time structure of the generated electron beam changes from a single bunch to a double bunch structure, well suited for driver-witness type experiments.
url http://doi.org/10.1103/PhysRevSTAB.18.121302
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