Author: Chubar, O.V.
Paper Title Page
TUPBA13 NS-FFAG for Electron-Ion Collider in RHIC (eRHIC) 553
 
  • D. Trbojevic, J.S. Berg, S.J. Brooks, O.V. Chubar, Y. Hao, V. Litvinenko, C. Liu, W. Meng, F. Méot, B. Parker, V. Ptitsyn, T. Roser, N. Tsoupas, W.-T. Weng
    BNL, Upton, Long Island, New York, USA
 
  Funding: Work performed under Contract Number DE-AC02-98CH10886 with the auspices of the US Department of Energy.
A future electron ion collider "QCD test facility" is designed in the present Relativistic Heavy Ion Collider (RHIC) tunnel. Electron acceleration and de-acceleration is preformed with energy recovery linac with multiple passes. We report on a combination of a multi-pass linac with the Non-Scaling Fixed Field Alternating Gradient (NS-FFAG) arcs. A single NS-FFAG arc allow electrons to pass through the same structure with an energy range between 1.425 and 10 GeV. The NS-FFAG is placed in the existing RHIC tunnel. The 200 MeV injector bring the polarized electrons to the 1.225 GeV GeV superconducting linac. After one pass through the linac 1.425 GeV electrons enter NS-FFAG arc and after 7 passes reach the energy of 10 GeV. After collisions the beam is brought back by the NS-FFAG and decelerated to the initial energy and directed to the dump.