DAFNE的负动量压缩经验
DAFNE Experience with Negative Momentum Compaction
摘要：
对于具有负动量压缩因子（alfa）的晶格的对撞机操作有几个潜在的优点。由于Frascati e+ e-Phi-factory DAFNE的晶格足够灵活，即使α < 0也能提供对撞机操作，因此我们利用这种可能性进行了束流动力学的实验研究。已经成功地实现了负动量压缩晶格，并且稳定的1A电流已经存储在电子和正电子环中，对于RF腔和反馈系统操作没有任何问题。第一次碰撞已经在低电流下进行了测试。在本文中，我们描述了实验结果，并将它们与预期和数值模拟进行比较。本文还讨论了α < 0时DAFNE运算的局限性及克服这些局限性的方法。
英文摘要：
There are several potential advantages for a collider operation with a lattice with negative momentum compaction factor (alfa). Since the lattice of the Frascati e+e- Phi-factory DAFNE is flexible enough to provide collider operation even with alfa < 0, we have exploited this possibility for an experimental study of the beam dynamics. The negative momentum compaction lattices have been successfully implemented and stable 1 A currents have been stored in both electron and positron rings without any problem for RF cavities and feedback systems operation. First collisions have been tested at low currents. In this paper we describe the experimental results and compare them with expectations and numerical simulations. Present limitations to DAFNE operation with alfa < 0 and ways to overcome them are also discussed.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
