Test of duoplasmatron with cold cathode for cw operation

Abstract

A pulse duoplasmatron with a cold cathode used at preinjectors of the ITEP proton linacs has been tested for generation of a dc proton beam. The operation of the duoplasmatron was studied experimentally with low currents of the discharge. The test bench experiments allowed to modify construction of a pulsed ion source for stable dc operation with a high lifetime. The ion source generated a dc beam of protons with a current /spl ap/12 mA at 30 kV.