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Appendix D: Use of a Nuclear Poison to Inhibit Nuclear Criticality
Pages 109-110

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From page 109...
... · The chemical properties of G6F3 are very similar to the properties of UF3, which would prevent segregation of poison and fissile materials. · Only ~ kg of G4F3 would be needed to provide adequate protection; this material can be obtained as a fine powder that can be dispersed easily over the entire solidified cake of existing salt.
From page 110...
... For the above reasons, the pane} believes that the addition of G] F3 should be considered if detailed reactivity calculations suggest the possibility of a criticality excursion due to precipitation and aggregation of a Missile species.


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