Space Charge 2026, 7th ICFA BD Mini-workshop

Space Charge Effects in a Ring-Based Electron Cooler

30 Sept 2026, 14:35

15m

Denys Wilkinson Building, Dennis Sciama Lecture Theatre (Oxford University, Physics Department)

C-1. Resonances and Space Charge C

Speaker

Sergey Seletskiy

Description

Electron cooling can be extended to highly relativistic energies by employing non-magnetized, RF-based electron coolers. An example of such a cooler is the Ring Electron Cooler (REC), which has been proposed to improve the average luminosity of the Electron Ion Collider at collision energy. The REC is a high-current electron storage ring operating at a relativistic gamma of 294, with beam parameters defined by the balance of various collective effects. Both self-space-charge throughout the ring and the proton-electron beam–beam interaction in the cooling section strongly influence the quality of the electron bunches. This presentation discusses the role of these effects on the cooler's performance.