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首页> 美国政府科技报告 >Post-encapsulation plutonia reduction for Galileo and Ulysses GPHS modules: The Module Reduction and Monitoring Facility (MRMF).
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Post-encapsulation plutonia reduction for Galileo and Ulysses GPHS modules: The Module Reduction and Monitoring Facility (MRMF).

机译：Galileo和Ulysses GpHs模块的封装后plutonia减少：模块减少和监测设施（mRmF）。

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In heat source systems of the type C/Ir/PuO(sub 2), ingrowth of CO and CO(sub 2) is evident. This is due to a cyclical reaction between the C and PuO(sub 2) constituents. Gas tap results show that repeated exchanges using a pure inert gas backfill reduces the CO/CO(sub 2) ingrowth rate. Also, the temperature experienced during Radioisotope Thermoelectric Generator (RTG) processing reduces further the effect such that normal RTG storage temperatures do not result in this deleterious effect. A 36-station vacuum/inert gas manifold has been developed at Mound Facility to serve as a Module Reduction and Monitoring Facility (MRMF) for up to 68 GPHS-type heat source modules. This method of storage effectively prevented atmospheric contamination of modules while reducing the CO/CO(sub 2) ingrowth rate. This paper describes in detail the theoretical, practical, facility, and quality/reliability aspects of this processing facility that has supported the Galileo and Ulysses RTG programs. 5 refs., 3 figs., 1 tab.

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