Activation of the divertor region as a function of different designs and configurations

Transmutation and activation analysis for divertor materials in a HCLL-type fusion power reactor

“…Primary candidates for the divertor tiles are tungsten and tantalum alloys as well as oxide dispersion strengthened (ODS) refractory alloys. Activation issues of different divertor designs and configurations have been recently investigated by Taczanowski et al [3]. In this work, the activation and transmutation characteristics of tungsten and tantalum are assessed as materials of the plasma-facing divertor tiles employed in a fusion power reactor (FPR) based on the HCLL (Helium-cooled Lithium-Lead) conceptual design of the PPCS reactor.…”

Argon generation in fusion reactor materials

“…• an ITER-like W from Plansee Group (10 ppm K) ( [7]); • a new K-doped W-3%Re tungsten (30 ppm K) with improved mechanical, high-temperature, radiation resistant and other important properties due to dispersion of K bubbles [8]; • the HCLL5 tungsten for European DEMO differs from others by 100 ppm content of Ar [9].…”