Speakers
Description
The Electron-Ion Collider (EIC) will collide protons and ions stored in the Hadron Storage Ring (HSR) with electrons stored in the Electron Storage Ring (ESR). The HSR will operate with proton beam energies from 41 to 275 GeV and corresponding rigidities of ion beams, while the ESR will provide electron beam energies from 5 to 18 GeV. The HSR is a modification of the RHIC rings, containing 6 arcs and 6 insertion regions (IRs). We describe how the RHIC lattice is transformed into the HSR lattice. We explain the functions of each IR and show the resulting beamline layouts and lattice designs. We enumerate the various layouts that the lattice will have over the lifetime of the EIC project. We indicate how we will maintain timing synchronization between the large range of collision energies (and therefore orbit periods) in the HSR and the ESR with its nearly invariant orbit period. We discuss impacts on the lattice design arising from gold ion injection and low energy electron cooling.
Funding Agency
This manuscript has been authored by employees of Brookhaven Science Associates, LLC under Contract No. DE-SC0012704 with the U.S. Department of Energy.
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