Space Power Volume 9 Number 4 1990

interrelationship of the melting point, the mirror focusing power and the effectiveness of the radiation shield. For greater thicknesses the areal rates would be less in proportion, e.g. a 1 cm thickness would be half as fast. Detail of the flat plate radiator is shown in Fig. 8. Pipe Manufacturing The pipe manufacturing process is shown in Fig. 9. It is more complicated than the in situ approach and can be better controlled. Most importantly, research by SSI and Goldsworthy Engineering has already shown the feasibility of the process. The beneficiation process is not currently defined but work on ilmenite beneficiation has shown this is not particularly mass intensive. There is also the significant possibility of using the ilmenite facility beneficiation plant for this process. This is particularly relevant because an ilmenite facility will

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