The vacuum systems for PEFP linac

The frontier project for high power proton accelerator including the proton injector, LEBT, RFQ and DTL has been launched in Sep. 2002. The fabrication and installation of the front-end system completed and the engineering design of the DTL has been ended. Now we are fabricating the 1st tank and RF components for the DTL. The purpose of this paper is to overview the installed vacuum systems of the front-end system, and to check out the designation of the DTL vacuum system.