STUDY ON THE PLS INJECTION KICKER MAGNET AND MODULATOR

The PLS injects 2.0 GeV electron beams from Linac to storage ring (SR). After storing the current to 170 mA, the beam energy is ramped up to 2.5 GeV in the PLS SR before providing the beam to users. In the PLS SR injection section, there are four kicker magnets and one kicker modulator. Peak current for each magnet is about 12 kA for 2.0 GeV injection that corresponds to 21 mm bump. Analytical, simulation, experimental studies of the kicker magnet show good field uniformity. An usable peak current range of the kicker system is also studied for future upgrade. The kicker magnet and modulator has been operated for 35,800 hours as of August 2001 since its installation..