Design of transport lines for uniforming beam distribution with octupoles

The intensity distribution of a typical particle beam is an approximate Gaussian distribution while many applications require the beam to be uniform. Local bright spots on the targets for high-power Gaussian beams create difficult cooling problems and shorten the lifetime of the target. In this pape...

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Main Authors: Y. Y. Guo, G. Xu
Format: Article
Language:English
Published: American Physical Society 2013-02-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.16.023501
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author Y. Y. Guo
G. Xu
author_facet Y. Y. Guo
G. Xu
author_sort Y. Y. Guo
collection DOAJ
description The intensity distribution of a typical particle beam is an approximate Gaussian distribution while many applications require the beam to be uniform. Local bright spots on the targets for high-power Gaussian beams create difficult cooling problems and shorten the lifetime of the target. In this paper, we have theoretically studied uniformization of the transverse beam profile using two octupole magnets placed at particular locations in the beam transport line. The details about the requirements on magnet strength and phase advance will be shown. As an example, we take a set of China Spallation Neutron Source parameters to simulate the beam. The simulation result agrees well with theoretical formulas.
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spelling doaj.art-a5fc9f3bbdb245c891fb55d557a213f82022-12-22T02:20:45ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022013-02-0116202350110.1103/PhysRevSTAB.16.023501Design of transport lines for uniforming beam distribution with octupolesY. Y. GuoG. XuThe intensity distribution of a typical particle beam is an approximate Gaussian distribution while many applications require the beam to be uniform. Local bright spots on the targets for high-power Gaussian beams create difficult cooling problems and shorten the lifetime of the target. In this paper, we have theoretically studied uniformization of the transverse beam profile using two octupole magnets placed at particular locations in the beam transport line. The details about the requirements on magnet strength and phase advance will be shown. As an example, we take a set of China Spallation Neutron Source parameters to simulate the beam. The simulation result agrees well with theoretical formulas.http://doi.org/10.1103/PhysRevSTAB.16.023501
spellingShingle Y. Y. Guo
G. Xu
Design of transport lines for uniforming beam distribution with octupoles
Physical Review Special Topics. Accelerators and Beams
title Design of transport lines for uniforming beam distribution with octupoles
title_full Design of transport lines for uniforming beam distribution with octupoles
title_fullStr Design of transport lines for uniforming beam distribution with octupoles
title_full_unstemmed Design of transport lines for uniforming beam distribution with octupoles
title_short Design of transport lines for uniforming beam distribution with octupoles
title_sort design of transport lines for uniforming beam distribution with octupoles
url http://doi.org/10.1103/PhysRevSTAB.16.023501
work_keys_str_mv AT yyguo designoftransportlinesforuniformingbeamdistributionwithoctupoles
AT gxu designoftransportlinesforuniformingbeamdistributionwithoctupoles