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Hadron beam evolution in microbunched electron cooling
Physical Review Accelerators and Beams ( IF 1.7 ) Pub Date : 2020-11-06 , DOI: 10.1103/physrevaccelbeams.23.111001
P. Baxevanis , G. Stupakov

The technique of microbunched electron cooling (MBEC) is a coherent cooling scheme with possible applications in high-energy hadron and electron-ion machines. In our previous work we analyzed the cooling of the hadron energy spread and transverse emittance using a one-dimensional (1D) technique that tracked the microscopic fluctuations in the hadron and electron beams. However, in order to obtain analytical expressions for our key quantities, we limited ourselves to calculating and optimizing only the initial values of the cooling rates. In this paper, we extend our approach so that it properly addresses the issue of the long-term, dynamic evolution of the hadron beam. In order to do so, it becomes necessary to consider the synchrotron motion of the hadron beam, in conjunction with the effects of diffusion and intrabeam scattering (IBS). With these modifications, our formalism allows us to develop a simple numerical tool that can effectively model the final state of hadron beam after many passages through the MBEC cooler.

中文翻译:

微束电子冷却中的强子束演化

微束电子冷却(MBEC)技术是一种相干冷却方案,可能在高能强子和电子离子机中得到应用。在我们以前的工作中,我们使用一维(1D)技术分析了强子能量散布和横向发射的冷却,该技术跟踪了强子和电子束的微观波动。但是,为了获得关键量的解析表达式,我们将自己局限于仅计算和优化初始冷却速率值。在本文中,我们扩展了方法,以使其正确解决强子束的长期动态演化问题。为此,必须结合扩散和束内散射(IBS)的影响来考虑强子束的同步加速器运动。通过这些修改,我们的形式主义使我们能够开发一个简单的数值工具,该工具可以有效地模拟经过多次MBEC冷却器的强子束的最终状态。
更新日期:2020-11-06
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