Abstract
The Microbunched Electron Cooling (MBEC) is a promising cooling technique that can find applications in future hadron and electron-ion colliders to counteract intrabeam scattering that limits the maximum achievable luminosity of the collider. To minimize the cooling time, one would use amplification cascades consisting of a drift section followed by a magnetic chicane. In this paper, we first derive and optimize the gain factor in an amplification section for a simplified one-dimensional model of the beam. We then deduce the cooling rate of a system with one and two amplification cascades. We also analyze the noise effects that counteract the cooling process through the energy diffusion in the hadron beam. Our analytical formulas are confirmed by numerical simulations for a set of model parameters.
Highlights
Microbunched coherent electron cooling (MBEC) of relativistic hadron beams has been proposed by Ratner [1]
If the length of the drift is equal to one-quarter of the plasma oscillation period in the electron beam, 1 4 λp, and the chicane strength is properly optimized, the density fluctuations in the electron beam generated by the chicane
We extend the analysis of Ref. [3] to include the amplification sections
Summary
Microbunched coherent electron cooling (MBEC) of relativistic hadron beams has been proposed by Ratner [1]. When the beams are combined again in a section of length Lk, called the “kicker,” the electric field of the induced density fluctuations in the electron beam acts back on the hadrons. We use the Gaussian system of units throughout this paper
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