Background:Proton therapy centers have been operated worldwide recently.The central rationale for proton therapy is its superior spatial dose distribution in the patient.Injection system of synchronous storage ring in Shanghai proton therapy equipment requires two bump magnets.Purpose:Two new pulsed power supplies of the same parameters used in the bump magnet have been proposed and developed.Methods:The principle of pulse forming circuit is that LC series resonance generates when thyristor is turned on by ...