Optimized operation of dielectric laser accelerators: Single bunch

We introduce a general approach to determine the optimal charge, efficiency and gradient for laser driven accelerators in a self-consistent way. We propose a way to enhance the operational gradient of dielectric laser accelerators by leverage of beam-loading effect. While the latter may be detriment...

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Main Authors: Adi Hanuka, Levi Schächter
Format: Article
Language:English
Published: American Physical Society 2018-05-01
Series:Physical Review Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevAccelBeams.21.054001
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author Adi Hanuka
Levi Schächter
author_facet Adi Hanuka
Levi Schächter
author_sort Adi Hanuka
collection DOAJ
description We introduce a general approach to determine the optimal charge, efficiency and gradient for laser driven accelerators in a self-consistent way. We propose a way to enhance the operational gradient of dielectric laser accelerators by leverage of beam-loading effect. While the latter may be detrimental from the perspective of the effective gradient experienced by the particles, it can be beneficial as the effective field experienced by the accelerating structure, is weaker. As a result, the constraint imposed by the damage threshold fluence is accordingly weakened and our self-consistent approach predicts permissible gradients of ∼10  GV/m, one order of magnitude higher than previously reported experimental results—with unbunched pulse of electrons. Our approach leads to maximum efficiency to occur for higher gradients as compared with a scenario in which the beam-loading effect on the material is ignored. In any case, maximum gradient does not occur for the same conditions that maximum efficiency does—a trade-off set of parameters is suggested.
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spelling doaj.art-23d0b3ed2c574aa9aa9b991510c6d3ab2022-12-21T22:47:51ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882018-05-0121505400110.1103/PhysRevAccelBeams.21.054001Optimized operation of dielectric laser accelerators: Single bunchAdi HanukaLevi SchächterWe introduce a general approach to determine the optimal charge, efficiency and gradient for laser driven accelerators in a self-consistent way. We propose a way to enhance the operational gradient of dielectric laser accelerators by leverage of beam-loading effect. While the latter may be detrimental from the perspective of the effective gradient experienced by the particles, it can be beneficial as the effective field experienced by the accelerating structure, is weaker. As a result, the constraint imposed by the damage threshold fluence is accordingly weakened and our self-consistent approach predicts permissible gradients of ∼10  GV/m, one order of magnitude higher than previously reported experimental results—with unbunched pulse of electrons. Our approach leads to maximum efficiency to occur for higher gradients as compared with a scenario in which the beam-loading effect on the material is ignored. In any case, maximum gradient does not occur for the same conditions that maximum efficiency does—a trade-off set of parameters is suggested.http://doi.org/10.1103/PhysRevAccelBeams.21.054001
spellingShingle Adi Hanuka
Levi Schächter
Optimized operation of dielectric laser accelerators: Single bunch
Physical Review Accelerators and Beams
title Optimized operation of dielectric laser accelerators: Single bunch
title_full Optimized operation of dielectric laser accelerators: Single bunch
title_fullStr Optimized operation of dielectric laser accelerators: Single bunch
title_full_unstemmed Optimized operation of dielectric laser accelerators: Single bunch
title_short Optimized operation of dielectric laser accelerators: Single bunch
title_sort optimized operation of dielectric laser accelerators single bunch
url http://doi.org/10.1103/PhysRevAccelBeams.21.054001
work_keys_str_mv AT adihanuka optimizedoperationofdielectriclaseracceleratorssinglebunch
AT levischachter optimizedoperationofdielectriclaseracceleratorssinglebunch