In all cases, notable improvements were made over the analysis techniques applied to the same problems in 1987. The results generated by the MC2- 3/DIF 3 D codes were excellent for ZPPR-15A and ZPPR-15B and good for ZPPR-15 D, compared to the MCNP solutions. The Doppler reactivity worth measurements are small heated samples which insert very small amounts of reactivity into the system (< 2 pcm). MCNP input, and generating MC2- 3 cross section generation instructions and amore » drawer homogenized equivalence problem. ![]() The deterministic models are generated by processing the as-built geometry information, i.e. The ZPPR-15 loadings are modeled using the MC2- 3/DIF 3 D codes developed and maintained at ANL and the MCNP code from LANL. Results for six loadings are studied in this document and focus on Doppler sample worths and sodium void worths. The experimental results come from the ZPPR-15 work in 1985-1986 which was focused on the accuracy of physics data for the integral fast reactor concept. ![]() ![]() This manuscript covers validation efforts for our deterministic codes at Argonne National Laboratory. MC2- 3 / DIF 3 D Analysis for the ZPPR-15 Doppler and Sodium Void Worth MeasurementsĭOE Office of Scientific and Technical Information (OSTI.GOV)
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