some experimental stations need SR pulse with long interval
which far exceeds HLS can provide now. In order to satisfy their needs
we proposed a scheme of using local vertical bump to lengthen the interval of SR pulses. We have designed a fast kicker magnet system
in which the pulse modulator is designed based on PFL technology and the kicker is an air-core kicker magnet. Preliminary measurements denote that the kicker system can meet the requirements of design.