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@inproceedings{marx:ipac2021-tupab235,
author = {D. Marx and Y. Cai and G.H. Hoffstaetter and Y. Li and C. Montag and Y.M. Nosochkov and S. Tepikian and J.E. Unger and F.J. Willeke},
% author = {D. Marx and Y. Cai and G.H. Hoffstaetter and Y. Li and C. Montag and Y.M. Nosochkov and others},
% author = {D. Marx and others},
title = {{Dynamic Aperture Optimization in the EIC Electron Storage Ring with Two Interaction Points}},
booktitle = {Proc. IPAC'21},
pages = {1984--1987},
eid = {TUPAB235},
language = {english},
keywords = {electron, lattice, sextupole, collider, dynamic-aperture},
venue = {Campinas, SP, Brazil},
series = {International Particle Accelerator Conference},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
issn = {2673-5490},
isbn = {978-3-95450-214-1},
doi = {10.18429/JACoW-IPAC2021-TUPAB235},
url = {https://jacow.org/ipac2021/papers/tupab235.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-TUPAB235},
abstract = {{In the Electron-Ion Collider (EIC), which is currently being designed for construction at Brookhaven National Laboratory, electrons from the electron storage ring will collide with hadrons, producing luminosities up to 10³⁴ cm⁻² s⁻¹. The baseline design includes only one interaction point (IP), and optics have been found with a suitable dynamic aperture in each dimension. However, the EIC project asks for the option of a second IP. The strong focusing required at the IPs creates a very large natural chromaticity (about -125 in the vertical plane for the ring). Compensating this linear chromaticity while simultaneously controlling the nonlinear chromaticity to high order to achieve a sufficient momentum acceptance of 1% (10 σ) at 18 GeV is a considerable challenge. A scheme to compensate higher-order chromatic effects from 2 IPs by setting the phase advance between them does not, by itself, provide the required momentum acceptance for the EIC Electron Storage Ring. A thorough design of the nonlinear optics is underway to increase the momentum acceptance using multiple sextupole families, and the latest results are presented here.}},
}