A solid tungsten divertor for ASDEX Upgrade

作者：Herrmann A^*; Greuner H; Jaksic N; Boeswirth B; Maier H; Neu R; Vorbrugg S

来源：Physica Scripta, 2011, T145: 014068.

DOI：10.1088/0031-8949/2011/T145/014068

The conceptual design of a solid tungsten divertor for ASDEX Upgrade (AUG) is presented. The Div-III design is compatible with the existing divertor structure. It re-establishes the energy and heat receiving capability of a graphite divertor and overcomes the limitations of tungsten coatings. In addition, a solid tungsten divertor allows us to investigate erosion and bulk deuterium retention as well as test castellation and target tilting. The design criteria as well as calculations of forces due to halo and eddy currents are presented. The thermal properties of the proposed sandwich structure are calculated with finite element method models. After extensive testing of a target tile in the high heat flux test facility GLADIS, two solid tungsten tiles were installed in AUG for in-situ testing.

• 出版日期2011-12