Book/Report

FZJ-2018-01567

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Neutronenphysikalische Untersuchungen zum Einsatz von Lithiumaluminaten im Tritiumbrutmantel von zukünftigen Fusionsreaktoren : Versuche zur Überprüfung von theoretischen Vorhersagen mittels geeigneter Messtechniken

Mohsin, A. (Corresponding author)FZJ*

1981
Kernforschungsanlage Jülich, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/17539

Report No.: Juel-1705

Abstract: A survey is given about the state of developrnent work at the blanket. lt shows that present designs aim at a fusion reactor with low tritium inventory. This aim can be achieved with a solid blanket. In this paper this concept is deseribed and the selection of appropriate materials for the solid blanket is discussed. The lithium aluminates turned out to be the most suitable materials. Comparing the different lithium aluminates the compounds Li$_{5}$AlO$_{4}$ and LiAlO$_{2}$ proved to be the most favourable. The improvement of the breeding ratio when using lead as neutron multiplier was investigated. Employing, for example, a lead tone of 15 cm thickness in front of a 60 cm thick breeding zone, the tritium breeding ratio is raised to 1.65 for Li$_{5}$AlO$_{4}$ and to 1.48 for LiAlO$_{2}$. The originally higher breeding ratio of the Li$_{5}$AlO$_{4}$ in contrary to the LiAlO$_{2}$ is compensated hereby. By this LiAlO$_{2}$ becomes a very interesting material for a solid blanket since it furthermore exhibits a higher rtelting point and higher phase transition temperature. For experimental check of the nuclear date, of this material and the computational techniques used, a test model was designed and built. This blanket model was used für measuring the space-dependent tritium production rate,which could be compared to corresponding computations. The assenibly was made of a lead zone as neutron multiplier, LiAlO$_{2}$ as breeding material, and polyethylene as neutron reflector.

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Contributing Institute(s):

1. Publikationen vor 2000 (PRE-2000)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

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Database coverage:

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