Book/Report

FZJ-2018-02749

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Zur Realisierbarkeit eines Booster-Targets für eine Spallations-Neutronenquelle im Hinblick auf Thermohydraulik und Materialbelastung

Weisweiler, H. (Corresponding author)FZJ*

1987
Kernforschungsanlage Jülich, Verlag Jülich

Please use a persistent id in citations: http://hdl.handle.net/2128/18393

Report No.: Juel-2121

Abstract: For a spallation plant (SNS), which has been completed recently, a second target is previewed as a booster with additional multiplication by neutron fission. This allows a multifarious use of the SNS. As spallation material uranium is proposed. A pulsed proton beam (40 $\mu$A, 10 Hz) is directed on the target, which produces about 2 MW. In this paper several target designs are presented and investigated under various aspects above all the thermal hydraulic one. Further main points are, besides questions of materials, thermostresses occuring in the target elements, loads by irradiation and thermal cycling caused by the pulsed proton beam and by switch-on and -off transients. Using metal oC-uranium as spallation material with zircaloy2-cladding of the target-elements, in all target concepts considered here,maximum temperatures below 400 °C can be achieved by cooling with sodium as well as with water. By the use of water, a temperature level can be attained, so that the load by thermostresses is below admissible values. This is equally true, when making use of UMo10, which shows according to the experimental data available up to now better behaviour under thermal cycling than unalloyed uranium.

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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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