  The kicker control system was used for beam extraction and injection between
two cooling storage rings (CSRs) at the Heavy Ion Research Facility in Lanzhou
(HIRFL). To meet the requirements of special physics experiments, the kicker
controller was upgraded. The new controller was designed based on ARM+DSP+FPGA
technology and monolithic circuit architecture, which can achieve a precision
time delay of 2.5 ns. In September 2014, the new kicker control system was
installed in the kicker field, and the test experiment using the system was
completed. In addition, a pre-trigger signal was provided by the controller,
which was designed to synchronize the beam diagnostic system and physics
experiments. Experimental results indicate that the phenomena of "missed kick"
and "inefficient kick" were not observed, and the multichannel trigger signals'
delay could be adjusted individually for kick power supplies in digitization;
thus, the beam transport efficiency was improved compared with that of the
original system. The fast extraction and injection experiment was successfully
completed based on the new kicker control systems for HIRFL-CSR.
