Speaker
Description
In the scope of the MEXT ATD and the ILC Technology Network (ITN) an ILC prototype cavities are currently being fabricated at KEK and at a vendor. The main Nb material for the central cell-part of cavity are conventional Fine-Grain (FG) Nb and newly introduced Medium-Grain (MG) Nb. We already fabricated four FG-Nb and two MG-Nb 1.3-GHz single-cell cavities. Our plan is to fabricate five FG-Nb and two MG-Nb 1.3-GHz 9-cell cavities in Cavity Fabrication Facility (CFF) in-house at KEK, and two FG-Nb 1.3-GHz 9-cell cavities in a ventor. After fabrication of these 9-cell cavities, all of them will be installed into the cryomodule and high-power test shoule be performed. Therefore, the fabrication of these 9-cell cavities should be complied with the High-Pressure Gas Safety (HPGS) regulation in Japan. The current status of fabrication of these cavities will be reported in this presentation.
