Fabrication of ICHIRO nine-cell cavities in PAL for STF of KEK

Pohang Accelerator Laboratory, POSTECH have studied SRF cavity and constructed SRF test laboratory from January 2006. The first activity for SRF research was to develop SRF 3rd harmonic cavity for PLS, which cavity was done in 2006 and the cryostat are under design. The fabrication of ICHIRO cavity, which is ILC ACD cavity, is PAL's second activity related to SRF. Deep drawing, trimming and welding by electron beam for a 9-cell ICHIRO cavity were done in PAL. The polishing processes of RF surface including electro-polishing were done in KEK with collaboration. This will be tested with real beam in STF-1 of KEK in second half period of 2007. This paper reports fabrication of ICHIRO nine-cell cavities in PAL.