Fabrication of biperiodic DAW cavity

Fabrication techniques for the biperiodic DAW cavity have been investigated for these years. The basic dimensions are optimized by computer simulations and cold model tests. According to results of material tests, all of the parts facing to the inside are made of OFC. In order to improve the properties of a bridge coupler, which is installed between two 1.2-m long accelerating tube, choke structure is implemented.