Speaker
Yang Xiong
(Tsinghua University)
Abstract
For space radiation simulation applications, low-energy slow extraction from proton synchrotron suffers from strong space charge effect. Using high-order harmonic excitation and extraction below resonance can solve this. Based on above, we studied local RF-KO method to reduce energy spread of extracted beam and the effectiveness is demonstrated through simulation.
摘要
紧凑型质子同步加速器是常用的空间辐射模装置,三阶共振慢引出技术是该类装置最常用的引出方法。但是该方法在低能量区间(一般小于60 MeV)因为纵向发射度大会导致引出束流能散大,从而降低引出效率;此外,受强空间荷效应影响,束流发射度增长激励困难,且会出现质心振荡,从而导致引出束流不稳定等。为此,我们提出一种局部横向射频踢脚(RF-KO)激励方法,可以有效减弱上述效应的影响。本研究聚焦于使用局部RF-KO激励降低引出束流的能散,通过模拟计算验证了该方法的有效性。
关键词 | 质子同步加速器、低能慢引出、RF-KO激励、动量分散 |
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Keywords | Proton Synchrotron, low-energy slow extraction, RF-KO excitation, energy spread |
Author
Yang Xiong
(Tsinghua University)