학술논문

Cooling rate for microbunched electron cooling without amplification
Document Type
article
Author
Source
Physical Review Accelerators and Beams, Vol 21, Iss 11, p 114402 (2018)
Subject
Nuclear and particle physics. Atomic energy. Radioactivity
QC770-798
Language
English
ISSN
2469-9888
Abstract
The Microbunched Electron Cooling (MBEC) proposed by D. Ratner is a promising cooling technique that can find applications in future hadron and electron-ion colliders. In this paper, we develop a new framework for the study of MBEC which is based on the analysis of the dynamics of microscopic 1D fluctuations in the electron and hadron beams during their interaction and propagation through the system. Within this framework, we derive an analytical formula for the longitudinal cooling rate and benchmark it against 1D computer simulations. We then calculate the expecting cooling time for a set of parameters of the proposed electron-ion collider eRHIC in a simple cooling system with one chicane in the electron channel. While the cooling rate in this system turns out to be insufficient to counteract the intrabeam scattering in the proton beam, we discuss how the electron signal can be amplified by two orders of magnitude through the use of plasma effects in the beam.