储存环束流Robinson不稳定性的分析和测量  

Analysis and measurement of storage ring Robinson instability

作　　者：初晨[1] 黄贵荣[1] 金凯[1] 王雪涛[1] 王金祥[1] 贾大春[1] 

机构地区：[1]中国科学技术大学国家同步辐射实验室,合肥230029

出　　处：《强激光与粒子束》2011年第10期2732-2736,共5页High Power Laser and Particle Beams

基　　金：中国科学院创新三期基金项目

摘　　要：探讨了储存环束流的Robinson不稳定性问题,提出用"等效失谐角大于零"取代"失谐角大于零"作为束流稳定的基本条件。在合肥光源电子储存环200MeV注入状态下,对束流不稳定性与高频腔失谐之间的关系进行了实验测量。结果表明:当束流稳定条件不满足时,如果高频腔大失谐,束流将全部丢失;小失谐时束流容易部分丢失;当高频腔处于负失谐状态,束流流强将限制在较低水平。The Robinson instability of storage ring is discussed.A new beam stability condition that the equivalent detuning angle should be over zero is presented.The relationship between the beam instability and the detuning of RF cavity is measured during 200 MeV injection at Hefei Light Source storage ring.The results indicate that when the beam stability condition is not satisfied,the beam will be lost if the detuning is large;the beam tends to be lost partially when the detuning is small;in the case of negative detuning,the beam current is limited within a low level.

关 键 词：储存环 高频系统 束流负载效应 束-腔相互作用 Robinson不稳定性 失谐角 

分 类 号：TL503.2[核科学技术—核技术及应用]