无放大微聚束电子冷却的冷却速率
Cooling Rate for Microbunched Electron Cooling without Amplification
摘要：
微聚束电子冷却（MBEC）是D.拉特纳是一种很有前途的冷却技术，可以在未来的强子和电子离子对撞机中找到应用。在本文中，我们开发了一个新的框架MBEC的研究，这是基于微观的1D波动的动力学分析的电子和强子束在相互作用和传播通过系统。在这个框架内，我们推导出一个分析公式的冷却速率和基准对1D计算机模拟与分析和数值结果之间的协议。然后，我们在电子通道中带有一个弯道的简单冷却系统中计算了拟议的电子-离子对撞机eRHIC的一组参数的预期冷却时间。虽然在这个系统中的冷却速率被证明是不足以抵消质子束中的束内散射，我们讨论了如何通过使用等离子体效应在束中的电子信号可以被放大两个数量级。
英文摘要：
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 cooling rate and benchmark it against 1D computer simulations with a agreement between the analytical and numerical results. 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 intra-beam 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.
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