In support of the National Nuclear Security Administration’s Office of Conversion, experiments were conducted to determine the chemical form of iodine generated during production of molybdenum-99 using an aqueous homogeneous subcritical system. Comparisons between the neutrons used in the experimental apparatus and the production system allow for a higher-fidelity interpretation of experimental results and are accomplished by a series of evaluations described in this report. These evaluations of the PNNL experimental system can be applied to other types of aqueous homogeneous subcritical systems for use in interpreting results from experiments using a target material consisting of uranyl sulfate. Neutron current efficiencies, fission events, and deposited energy were evaluated per source neutron to allow for comparisons to other systems. The deposited energy will contribute to radiolysis of the target material, but the impact from neutron scattering and moderation is not adequately understood. The evaluations described in this report can be made compatible with other systems by modifying the target material composition providing flexibility in assessing multiple scenarios.