Manufacturing and testing of a prototypical divertor vertical target for ITER

M. Merola, L. Plöchl, Ph Chappuis, F. Escourbiac, M. Grattarola, I. Smid, R. Tivey, G. Vieider

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27 Scopus citations


After an extensive R&D activity, a medium-scale divertor vertical target prototype has been manufactured by the EU Home Team. This component contains all the main features of the corresponding ITER divertor design and consists of two units with one cooling channel each, assembled together and having an overall length and width of about 600 and 50 mm, respectively. The upper part of the prototype has a tungsten macro-brush armour, whereas the lower part is covered by CFC monoblocks. A number of joining techniques were required to manufacture this component as well as an appreciable effort in the development of suitable non-destructive testing methods. The component was high heat flux tested in FE200 electron beam facility at Le Creusot, France. It endured 100 cycles at 5 MW/m2, 1000 cycles at 10 MW/m2 and more then 1000 cycles at 15-20 MW/m2. The final critical heat flux test reached a value in excess of 30 MW/m2.

Original languageEnglish (US)
Pages (from-to)1068-1072
Number of pages5
JournalJournal of Nuclear Materials
Issue numberPART II
StatePublished - 2000

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • General Materials Science
  • Nuclear Energy and Engineering


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