合肥储存环注入状态下的高频系统研究
Study of RF system of Hefei Ｓtorage Ｒing under injection
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摘要: 对高频系统的束流负载效应和Robinson不稳定性条件进行了详细分析；通过对 失谐角、视在失谐角与储存环注入流强限的研究发现，对于合肥光源这样的中能储存环，由于注入状态的电子束能量较低，同步辐射相角接近90°，因此，只要给高频腔馈入一定的功率，再把腔调到一定的失谐角，就可以在环中注到较高的流强，达到二期工程的设计目标。Abstract: In this paper, the beam loading effect of RF system and the conditions of Robinson instability are analyzed in detail. By the study of the injection beam intensity limit dependent on detune angle and visible detune angle, it is found that the storage ring can be injected to more than 300mA current intensity to attain the design target of phase II project in the lower energy injection situation of Hefei Storage Ring if a certain power is feed in the RF cavity and a certain tuning angle of the RF cavity is set.
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Key words:
- detuning angle /
- visible detune angle /
- input power /
- cavity voltage
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