CONCEPTUAL DESIGN OF THE CRYOMODULE FOR THE TRASCO SC LINAC

Abstract On the basis of the experience gained from the design of the TTF cryostat, we present a conceptual design of the TRASCO 700 MHz cryomodule. The guidelines used for this design are: 1-a sliding cavity support that allows to install semi-rigid power couplers is used; 2-the cavity string, including couplers, is assembled in the clean room and pre-aligned outside the vacuum vessel. The alignment is kept during the cold mass assembly; 3-in order to increase the linac availability, each cryomodule is cryogenically independent. The results of the preliminary engineering design phase are discussed