ERL based electron-ion collider eRHIC (original) (raw)

In this paper we describe eRHIC design based on the RHIC hadron rings and 10-to20 GeV energy recovery electron linac. RHIC requires a very large tunability range for c.m. energies while maintaining very high luminosity up to 1034 cm-2 s-1 per nucleon. The designs of this future polarized electron-hadron collider, eRHIC, based on a high current super-conducting energy-recovery linac (ERL) with energy of electrons up to 20 GeV, have a number of specific requirements on the ERL optics. Two of the most attractive features of this scheme are full spin transparency of the ERL at all operational energies and the capability to support up to four interaction points. We present two main layout of the eRHIC, the expected beam and luminosity parameter, and discuss the potential limitation of its performance.

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