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Title: The ERL-based Design of Electron-Hadron Collider eRHIC

Recent developments of the ERL-based design of future high-luminosity electron-hadron collider eRHIC focused on balancing technological risks present in the design versus the design cost. As a result a lower risk design has been adopted at moderate cost increase. The modifications include a change of the main linac RF frequency, reduced number of SRF cavity types and modified electron spin transport using a spin rotator. A luminosity-staged approach is being explored with a Nominal design ($$L \sim 10^{33} {\rm cm}^2 {\rm s}^{-1}$$) that employs reduced electron current and could possibly be based on classical electron cooling, and then with the Ultimate design ($$L \gt 10^{34} {\rm cm}^{-2} {\rm s}^{-1}$$) that uses higher electron current and an innovative cooling technique (CeC). The paper describes the recent design modifications, and presents the full status of the eRHIC ERL-based design.
Authors:
 [1]
  1. et al.
Publication Date:
OSTI Identifier:
1329060
Report Number(s):
IPAC-2016-WEPMW027; FERMILAB-CONF--16-329-TD
1470237; TRN: US1601928
DOE Contract Number:
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: 7. International Particle Accelerator Conference, Busan (Korea, Republic of), 8-13 May 2016
Research Org:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BROOKHAVEN ERHIC; ELECTRON BEAMS; DESIGN; BEAM LUMINOSITY; SPIN; ELECTRON COOLING; LINEAR ACCELERATORS; COST; BEAM CURRENTS; MODIFICATIONS; SUPERCONDUCTING CAVITY RESONATORS; RF SYSTEMS; ENERGY RECOVERY