论文标题
测量CERN质子同步器多转移提取的分裂梁的横梁发射率
Measurement of transverse beam emittance of split beams for the CERN Proton Synchrotron Multi-Turn Extraction
论文作者
论文摘要
跨越水平的非线性共振是一种方法，可用于将光束拆分几个梁中，其目标是从圆形粒子加速器中进行多旋转萃取。这种方法已在CERN质子同步器中成功实现，并通常用于在超级质子同步器处的固定目标物理物理生产高强度质子束。最近，由于最初安装的钻石探测器的部署是为了监测提取时的光束损耗，因此可以在提取前测量分裂梁的水平束发射。这是第一次尝试进行分裂光束，即在高度非线性束动力学的策略中。在本文中，介绍了该技术，并详细介绍和讨论了其在实验数据分析中的应用。该结果对于分裂过程的性能评估和设计进一步改进至关重要。
Crossing a horizontal nonlinear resonance is the approach that can be used to split a beam in several beamlets with the goal to perform multi-turn extraction from a circular particle accelerator. Such an approach has been successfully implemented in the CERN Proton Synchrotron and is used routinely for the production of high-intensity proton beams for fixed-target physics at the Super Proton Synchrotron. Recently, thanks to the deployment of diamond detectors, originally installed to monitor the beam losses at extraction, it has been possible to measure the horizontal beam emittance of the split beam just prior to extraction. This is the first time that an emittance measurement is attempted for split beams, i.e. in a regime of highly nonlinear beam dynamics. In this paper, the technique is presented and its application to the analysis of the experimental data is presented and discussed in detail. This result is essential for the performance assessment of the splitting process and for the design of further performance improvements.
