Maximum current density and beam brightness achievable by laser-driven electron sources

This paper discusses the extension to different electron beam aspect ratio of the Child-Langmuir law for the maximum achievable current density in electron guns. Using a simple model, we derive quantitative formulas in good agreement with simulation codes. The new scaling laws for the peak current d...

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Main Authors: D. Filippetto, P. Musumeci, M. Zolotorev, G. Stupakov
Format: Article
Language:English
Published: American Physical Society 2014-02-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.17.024201
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spelling doaj-6e2b2310edc7436e9d409396348c92a92020-11-25T01:38:00ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022014-02-0117202420110.1103/PhysRevSTAB.17.024201Maximum current density and beam brightness achievable by laser-driven electron sourcesD. FilippettoP. MusumeciM. ZolotorevG. StupakovThis paper discusses the extension to different electron beam aspect ratio of the Child-Langmuir law for the maximum achievable current density in electron guns. Using a simple model, we derive quantitative formulas in good agreement with simulation codes. The new scaling laws for the peak current density of temporally long and transversely narrow initial beam distributions can be used to estimate the maximum beam brightness and suggest new paths for injector optimization.http://doi.org/10.1103/PhysRevSTAB.17.024201
collection DOAJ
language English
format Article
sources DOAJ
author D. Filippetto
P. Musumeci
M. Zolotorev
G. Stupakov
spellingShingle D. Filippetto
P. Musumeci
M. Zolotorev
G. Stupakov
Maximum current density and beam brightness achievable by laser-driven electron sources
Physical Review Special Topics. Accelerators and Beams
author_facet D. Filippetto
P. Musumeci
M. Zolotorev
G. Stupakov
author_sort D. Filippetto
title Maximum current density and beam brightness achievable by laser-driven electron sources
title_short Maximum current density and beam brightness achievable by laser-driven electron sources
title_full Maximum current density and beam brightness achievable by laser-driven electron sources
title_fullStr Maximum current density and beam brightness achievable by laser-driven electron sources
title_full_unstemmed Maximum current density and beam brightness achievable by laser-driven electron sources
title_sort maximum current density and beam brightness achievable by laser-driven electron sources
publisher American Physical Society
series Physical Review Special Topics. Accelerators and Beams
issn 1098-4402
publishDate 2014-02-01
description This paper discusses the extension to different electron beam aspect ratio of the Child-Langmuir law for the maximum achievable current density in electron guns. Using a simple model, we derive quantitative formulas in good agreement with simulation codes. The new scaling laws for the peak current density of temporally long and transversely narrow initial beam distributions can be used to estimate the maximum beam brightness and suggest new paths for injector optimization.
url http://doi.org/10.1103/PhysRevSTAB.17.024201
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AT mzolotorev maximumcurrentdensityandbeambrightnessachievablebylaserdrivenelectronsources
AT gstupakov maximumcurrentdensityandbeambrightnessachievablebylaserdrivenelectronsources
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