A novel control system for RF power system of LINAC

This control system is used to flatten the flat-top of the amplitude and ph ase macro-pulses of the high power klystron output. This is of critical imp ortance in improving the electron beam quality for FEL and other applicatio ns. The self-adaptive feed-forward control system is adopted to stabilize t he RF power supply for the LINAC, which utilizes linearization and matrix a lgebra to simplify the computation. The system is operational and some expe rimental results have been obtained, which demonstrate that the system is e ffective to improve the beam quality.