Self-aberration in high-brightness uniformly charged particle beams

We show theoretically and experimentally a slice emittance growth in a uniformly charged electron beam in static, and linear in space, electromagnetic fields of the SACLA injector. The Coulomb field of the electrons in a beam creates a linear correlation between the electrons in the transverse phase...

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Main Authors: Vitaliy Goryashko, Anatoliy Opanasenko, Kazuaki Togawa
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Results in Physics
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Online Access:http://www.sciencedirect.com/science/article/pii/S2211379724007812
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author Vitaliy Goryashko
Anatoliy Opanasenko
Kazuaki Togawa
author_facet Vitaliy Goryashko
Anatoliy Opanasenko
Kazuaki Togawa
author_sort Vitaliy Goryashko
collection DOAJ
description We show theoretically and experimentally a slice emittance growth in a uniformly charged electron beam in static, and linear in space, electromagnetic fields of the SACLA injector. The Coulomb field of the electrons in a beam creates a linear correlation between the electrons in the transverse phase space. The magnetic field of a solenoid lens first transfers this ‘transverse correlation’ into a ‘longitudinal one,‘ and then back to the transverse plane in an amplified fashion. As a result, the particle momentum exchange between the longitudinal and transverse degrees of freedom in the magnetic field leads to a nonlinear deformation of the transverse phase space of the beam.
format Article
id doaj-art-c724e9e61bdc489e856398d4b7db7347
institution Kabale University
issn 2211-3797
language English
publishDate 2025-01-01
publisher Elsevier
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series Results in Physics
spelling doaj-art-c724e9e61bdc489e856398d4b7db73472025-01-18T05:04:34ZengElsevierResults in Physics2211-37972025-01-0168108096Self-aberration in high-brightness uniformly charged particle beamsVitaliy Goryashko0Anatoliy Opanasenko1Kazuaki Togawa2RIKEN, SPring-8 Center, 679-5148 Hyogo, Japan; FREIA Laboratory, Department of Physics and Astronomy, Uppsala University, Å ngströmlaboratoriet, 75120 Uppsala, Sweden; Corresponding author at: RIKEN, SPring-8 Center, 679-5148 Hyogo, Japan.National Science Center ‘Kharkiv Institute of Physics and Technology’, Akademichna Str. 1, 61108 Kharkiv, UkraineRIKEN, SPring-8 Center, 679-5148 Hyogo, JapanWe show theoretically and experimentally a slice emittance growth in a uniformly charged electron beam in static, and linear in space, electromagnetic fields of the SACLA injector. The Coulomb field of the electrons in a beam creates a linear correlation between the electrons in the transverse phase space. The magnetic field of a solenoid lens first transfers this ‘transverse correlation’ into a ‘longitudinal one,‘ and then back to the transverse plane in an amplified fashion. As a result, the particle momentum exchange between the longitudinal and transverse degrees of freedom in the magnetic field leads to a nonlinear deformation of the transverse phase space of the beam.http://www.sciencedirect.com/science/article/pii/S2211379724007812Brightness of charged particle beamsEmittance growthNonlinear correlations in phase space
spellingShingle Vitaliy Goryashko
Anatoliy Opanasenko
Kazuaki Togawa
Self-aberration in high-brightness uniformly charged particle beams
Results in Physics
Brightness of charged particle beams
Emittance growth
Nonlinear correlations in phase space
title Self-aberration in high-brightness uniformly charged particle beams
title_full Self-aberration in high-brightness uniformly charged particle beams
title_fullStr Self-aberration in high-brightness uniformly charged particle beams
title_full_unstemmed Self-aberration in high-brightness uniformly charged particle beams
title_short Self-aberration in high-brightness uniformly charged particle beams
title_sort self aberration in high brightness uniformly charged particle beams
topic Brightness of charged particle beams
Emittance growth
Nonlinear correlations in phase space
url http://www.sciencedirect.com/science/article/pii/S2211379724007812
work_keys_str_mv AT vitaliygoryashko selfaberrationinhighbrightnessuniformlychargedparticlebeams
AT anatoliyopanasenko selfaberrationinhighbrightnessuniformlychargedparticlebeams
AT kazuakitogawa selfaberrationinhighbrightnessuniformlychargedparticlebeams