Comparison of radwaste volume and hazard in liquid wall and conventional solid wall concepts

Author

Youssef, M.Z. ; Sawan, M.E. ; Khater, H.Y.

Author_Institution

California Univ., Los Angeles, CA, USA

fYear

2002

fDate

2002

Firstpage

168

Lastpage

171

Abstract

In this paper, we quantitatively assess the advantages offered by thick liquid wall (LW) concepts over conventional solid wall (SW) concepts in terms of the substantial reduction in radiation damage as well as activation to solid structure with subsequent reduction in radwaste volume and hazard. The conventional SW FW/blanket considered is made of Li/V with a peak neutron wall load of 5 MW/m² (3.5 MW/m² ave.) and is compared to a thick liquid lithium with a peak neutron wall load of 10 MW/m² (7 MW/m² ave.). "Fixed Radii" and "Fixed Fusion Power" configurations are considered. To have a consistent comparison, the two blankets were optimized first such that adequate tritium breeding ratio is obtained and the same level of magnet protection against radiation damage is reached.

Keywords

fusion reactor blankets; lithium; radiation effects; radioactive waste; Li; T; fixed fusion power; fixed radii; liquid Li; liquid wall; magnet; neutron wall load; radiation damage; radwaste volume; solid wall; tritium breeding ratio; Frequency estimation; Fusion reactors; Hazards; Life estimation; Lifetime estimation; Lithium; Magnetic shielding; Neutrons; Protection; Solids;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 2002. 19th Symposium on

Print_ISBN

0-7803-7073-2

Type

conf

DOI

10.1109/FUSION.2002.1027668

Filename

1027668