Conceptual Design Report: A Ring-Based Electron Cooling System For The Eic

This report describes a concept of an EIC cooling system, based on a proven induction-linac technology with a DC electron beam. The system would operate in a full energy range of proton beams (100-270 GeV) and would provide 50-100 A electron beams, circulating in a cooler ring for 5 ms. Every 5 ms a new electron pulse would be injected into the cooler ring to provide continuous cooling at collisions. Operations with a 10-ms cycle is possible but it will reduce the cooling rates by similar to 30%. The system is capable of delivering the required performance in the entire EIC energy range with emittance cooling times of less than 1-2 hours.