Technology developments for the ITER divertor
Based on the experience gained from the Tore Supra construction, a design of a single divertor is proposed for ITER. The concept is based on an assembly of independent tubes which cover the bottom of the vessel. The cooling structure is made of copper square tubes protected by CFC flat tiles. Due to the high values of the incident heat flux (15 MW/m2), the two major issues for this design are the thermal-hydraulic conditions and the CFC to copper brazing technology. The flat tile concept, the selected materials, the brazing techniques and thermal-hydraulic tests which qualify the concept are presented. Finally, the successful tests of a mock-up under 15 MW/m2 and fatigue tests during a thousand cycles without any hot spot on all the mock-up tiles in steady state regime confirm the reliability of the concept.
Bibliographic Reference: Paper presented: 17th Symposium on Fusion Technology, Roma (IT), September 14-18, 1992
Availability: Available from (1) as Paper EN 37059 ORA
Record Number: 199211514 / Last updated on: 1994-11-29
Original language: en
Available languages: en