As tungsten ion source and non-pieces by lanthanum

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An ion implantation system is provided having one or more conductive components comprised of one or more of lanthanated tungsten and a refractory metal alloyed with a predetermined percentage of a rare earth metal. The conductive component may be a component of an ion source, such as one or more of a cathode, cathode shield, a repeller, a liner, an aperture plate, an arc chamber body, and a strike plate. The aperture plate may be associated with one or more of an extraction aperture, a suppression aperture and a ground aperture.