Status of the ITER Divertor IVT procurement

Abstract The Ansaldo Nucleare (ANN) Prototype manufacturing is under completion. The stainless steel support structure was manufactured by Walter Tosto (Italy) and the Plasma Facing Units (PFUs) were manufactured by ENEA (Italy) by diffusion bonding between the CuCrZr pipe and the W monoblocks equipped with a pure Cu compliance layer (Hot Radial Pressing, HRP). This paper presents some of the learnings of the Inner Vertical Target (IVT) Prototype manufacturing and provides the main results of the dimensional control tests. The outcomes of the PFUs High Heat Flux (HHF) testing performed in the ITER Divertor Test Facility (IDTF) in Efremov institute, Saint Petersburg (Russia) are presented as well.