Publications Details
Integral Experiment Request 230 CED-2 Summary Report
Harms, Gary A.; Zerkle, Michael L.; Clarity, Justin B.; Heinrichs, David P.
A method is described to test the effect of increased moderation on the 7uPCX critical arrays using the existing assembly hardware. The proposed experiments will allow the exploration of the assembly fuel-to-water ratio out to, and possibly beyond, optimum moderation in the assembly. A significant result reported below is that the total uncertainty in the benchmark keff in some of these experiments is reduced by about a factor of two compared to the uncertainties obtained in the fully-reflected experiments done to date.