Heat flux tests of the ITER first Wall qualification mockups at KoHLT-1

As a party of the ITER, especially as a procurement party of the ITER blanket, we have designed the first wall qualification mockup (FWQM) and fabricated four FWQMs. Two of them have been tested up to 12,690/12,020 cycles at a heat flux higher than 0.625 MW/m2 at the KoHLT-1 facility established in the Korea Atomic Energy Research Institute (KAERI). They successfully passed the normal heat flux tests, and there was no indication of a defect in the Be-to-CuCrZr joints.