IHEP, Beijing, People's Republic of China
# Supported by National Natural Science Foundation of China (11175193)
*wangs@ihep.ac.cn
| Paper | Title | Page |
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| WEO1A03 | Resistive Wall Instability in CSNS/RCS | 354 |
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Rapid Cycling Synchrotron (RCS) of the China Spallation Neutron Source (CSNS) is a high intensity proton accelerator, with average beam power of 100kW. The collective effects caused by the coupling impedance may be the limit to beam power. The impedance estimation for components on beam line shows that the resistive wall impedance and its instability are more serious than any others. Based on the impedance budget, the instability is theoretically estimated. A simple resistive wall wake field model is used to simulate the bunch oscillation and obtain the growth time. In this simulation model, the continuous resistive wall wake field is concentrated to one position in the ring and the long bunch is sliced into many micro-bunches. By tracking the dynamics of the macro-bunches, the transverse growth time are obtained. The simulation results are also confirmed the restriction to instability by natural chromaticity.
# Supported by National Natural Science Foundation of China (11175193) *wangs@ihep.ac.cn |
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Slides WEO1A03 [1.358 MB] | |