SLOW EXTRACTION CONTROL USING THE DIGITAL FEEDBACK SYSTEM

Development and beam observation and various feedback tests of the hardware have been carried out for the purpose of both of utilization experiment of DSP and characteristic improvement of slow extraction. In recent experiment using DSP, it was possible that ripples were made to decrease in comparison with the analog feedback to 30% at the proportion of the ripple of the spill. Both of the method for using for the decrease in ripple content rate and observation result are described.