Speaker
Description
The Electron-Ion Collider (EIC), which is currently being designed for construction at Brookhaven National Laboratory, will collide polarized electron beams (5-18 GeV) with polarized hadron beams (41-275 GeV for protons) at luminosities up to 10^{34} cm^{−2} s^{−1} in a 3.8-kilometer ring. The EIC will be the only lepton-hadron collider since HERA at DESY and, in contrast to that earlier machine, will feature high polarization of both electrons and protons, a wide range of center-of-mass collision energies, a wide range of ion species, and much higher luminosities. These properties will make it an ideal machine for exploring the mass and spin dynamics of nucleons. The Electron Storage Ring (ESR) will be built in the existing 3.8-kilometer RHIC tunnel using normal-conducting magnets and a few superconducting magnets for the final-focus quadrupoles and spin-rotator solenoids. The wide range of energies, high polarization, high current, large beam-beam parameters, and stringent geometric constraints make the ESR a particularly challenging machine. Lately, the design of the ESR has matured considerably with a number of key design decisions taken. The requirements for technical systems, ranging from power supplies to magnets, have also been determined. This contribution presents the design of the electron storage ring and highlights some important recent developments and design decisions.
Funding Agency
Work supported by Brookhaven Science Associates, LLC, under Contract No. DE-SC0012704 with the U.S. Department of Energy.
| In which format do you inted to submit your paper? | LaTeX |
|---|