Development of bunch by bunch transverse feedback system at Hefei Light Source
This paper has introduced the development of the transverse bunch-by-bunch measurement and feedback system,including the experiment of damping the coupled bunch instability.Some key technologies on the system have been introduced: the vector calculation module as a signal processing module used to adjust the phase of the feedback signals,the feedback kicker cavity and the notch filter used to filter the DC component and revolution frequencies component in a signal and save the feedback power.The result of the feedback experiment is mentioned: the instability oscillation was damped when the feedback system was on.