Space Charge, Beam Cooling and Advanced Beam Manipulation techniques

本计画旨在探讨储存环中空间电荷控制束流的动力学问题、束流冷却及束流操控技术。我们的研究课题包括非线性束流动力学、束流冷却、先进的束流操纵技术、紧凑型医用同步加速器的设计和高增益自由电子激光器。我们的研究结果已被用于控制和缓解高强度储存环中的集体束流不稳定性，提供设计标准的电源涟漪在高能对撞机，并开发新的方法，在高亮度储存环的发射度保持。高亮度束流的一些应用是放射性离子束加速器、空间中子源、重离子聚变、生物化学和生物医学、材料科学和国防研究。本研究对加速器物理研究生和本科生的培养也具有重要意义。

The proposal is to investigate beam dynamics problems on space charge dominated beams, beam cooling, and beam manipulation techniques in storage rings. Topics of our research include nonlinear beam dynamics, beam cooling, advanced beam manipulation techniques, design of compact medical synchrotrons, and high gain free electron lasers. Our results have been employed to control and alleviate collective beam instabilities in high intensity storage rings, to provide design criterion for power supply ripple in high energy colliders, and to develop new methods for emittance preservation in high brightness storage rings. Some applications of high brightness beams are radioactive ion-beam accelerators, spallation neutron source, heavy ion fusion, biochemistry and bio-medical, material science, and defense research. The proposed research is also important in training accelerator physics graduate and undergraduate students.