Both of these inputs were considered to be sensitivity parameters, and they were manipulated to determine their impact on the required SRS storage capacity. Indeed, even the availability of new SRS storage capacity was treated as a sensitivity parameter to determine the impact on deinventorying the plutonium from the existing sites included in the model. Most non-pit plutonium from Nuclear Weapons Complex sites including SRS will be treated as necessary to create acceptable immobilization feed. The feed will be combined with ceramic formers to make an immobilized plutonium waste form, loaded into canisters, the canisters loaded into a DWPF canister, and the DWPF canister filled with HLW glass containing Cs-137. In the model, thick lines show material flow.
Thin lines show information flow, for the most part input to plotters.
Figure 3 below shows the section for SRS processing, which was implemented in a simplified way in the model. The router is a logical unit that determines the type of material entering the SRS Process stream. At the time the model was developed, a number of materials, including Sand Slag and Crucible, and Plutonium Fluorides were slated for dissolution in F Canyon followed by conversion to metal in FB Line. Some classified plutonium parts were to be melted down in FB Line. Some materials with some uncertainty would undergo characterization.