Optimization of chromaticity compensation and dynamic aperture in meic collider rings

F. Lin, Ya S. Derbenev, V. S. Morozov, Y. Zhang, K. B. Beard

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The conceptual design of the Medium-energy Electron- Ion Collider (MEIC) at JeffersonLab relies on an ultrasmall beta-star to achieve high luminosities of up to 1034cm-2s-1. A low-beta insertion for interaction regions unavoidablyinduces large chromatic effects that demand a proper compensation. The present approach ofchromatic compensation in the MEIC collider rings is based on a local correction schemeusing two symmetric chromatic compensation blocks that includes families of sextupoles, andare placed in a beam extension area on both sides of a collision point. It cansimultaneously compensate the first order chromaticity and chromatic beam smear at the IPwithout inducing significant second order aberrations. In this paper, we investigate boththe momentum acceptance and dynamic aperture in the MEIC ion collider ring by consideringthe aberration effects up to the third order, such as amplitude dependent tune shift. Wealso explore the compensation of the third order effects by introducing families ofoctupoles in the extended beam area.

Original languageEnglish
Title of host publicationIPAC 2012 - International Particle Accelerator Conference 2012
Pages1389-1391
Number of pages3
StatePublished - 2012
Externally publishedYes
Event3rd International Particle Accelerator Conference 2012, IPAC 2012 - New Orleans, LA, United States
Duration: May 20 2012May 25 2012

Publication series

NameIPAC 2012 - International Particle Accelerator Conference 2012

Conference

Conference3rd International Particle Accelerator Conference 2012, IPAC 2012
Country/TerritoryUnited States
CityNew Orleans, LA
Period05/20/1205/25/12

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