Thermal-hydraulic modelling and analysis of ITER tungsten divertor monoblock

R&D on full tungsten divertor and beryllium wall for JET ITER-like wall project

The ITER reference materials have been tested separately in tokamaks, plasma simulators, ion beams and high heat flux test beds. In order to perform a fully integrated material test JET has launched the ITER-like Wall Project with the aim of installing a full metal wall during the next major shutdown. As a result of R&D projects in 2005–2006, bulk tungsten tiles are foreseen at the outer horizo...

Divertor interferometer diagnostic for ITER

In the harsh environment of the divertor region in ITER, plasmas spanning a huge density range from 1019 to 1022 m−3 are anticipated making measurement of the electron density particularly challenging. For any reasonable wavelength choice, the total phase measured by a conventional two-color interferometer system is always 2 and therefore subject to fringe counting errors. This problem can be r...

Divertor Requirements and Performance in ITER

Status of the Engineering Design of the ITER Divertor

In this paper we present the main features of the ITER Divertor final dlesign from an engineering point of view and describe the present choices regarding layout, geometry and material selection. The assessment of the detailed design shows that the divertor is able to withstand the thermal and electromagnetic loading conditions foreseen for ITER, and that the estimated lifetime of the Plasma Fa...

1D kinetic modelling of the JET SOL with tungsten divertor plates

In this work a fully kinetic model of the JET SOL with tungsten divertor plates has been developed. It includes the dynamics of main-ions (D) and electrons, the neutrals (D, C, W) and the impurity particles (C, W). Our simulations show extremely low concentration of W impurity. We identify two reasons which are responsible for this effect: (1) for low temperature divertor plasma the energy of m...