Recent Progress of GIS / GDC Design and Manufacturing for ITER

The recent progress of the GIS and GDC is introduced. The detailed design of GDC electrode has been finished and the progress for some key techniques has been obtained; the critical components in GDC electrode have been developed and tested; the transient flow behavior for each gas have been analyzed and the preliminary study of magnetic shield has been done; a basic structure design of GVB is presented; a prototype of GDC electrode is to be manufactured and the test scheme has been drafted; the tritium compatibility and safety design review of GIS and experimental study on transient flow behavior are expected to be carried out in the