4 ms·
MSRs that use lithium in the fuel salt do in fact need enriched lithium. The problem is that lithium 6 has a much larger neutron absorption cross section than l
by MertsA 8y ago
MSRs that use lithium in the fuel salt do in fact need enriched lithium. The problem is that lithium 6 has a much larger neutron absorption cross section than lithium 7. It's on the order of 10,000x greater IIRC.