
doi: 10.2172/10145615
This report discusses various aspects related to the use and validity of the general purpose Monte Carlo code MCNP for multigroup/adjoint calculations. The increased desire to perform comparisons between Monte Carlo and deterministic codes, along with the ever-present desire to increase the efficiency of large MCNP calculations has produced a greater user demand for the multigroup/adjoint capabilities. To more fully utilize these capabilities, we review the applications of the Monte Carlo multigroup/adjoint method, describe how to generate multigroup cross sections for MCNP with the auxiliary CRSRD code, describe how to use the multigroup/adjoint capability in MCNP, and provide examples and results indicating the effectiveness and validity of the MCNP multigroup/adjoint treatment. This information should assist users in taking advantage of the MCNP multigroup/adjoint capabilities.
330, Benchmarks, Physics Of Radiations Other Than Neutrons, Computing, 73 Nuclear Physics And Radiation Physics, Photon Transport, Multigroup Theory, 99 General And Miscellaneous//Mathematics, Mathematics And Computers, Criticality 663620, And Information Science, Neutron Transport, M Codes, 990200
330, Benchmarks, Physics Of Radiations Other Than Neutrons, Computing, 73 Nuclear Physics And Radiation Physics, Photon Transport, Multigroup Theory, 99 General And Miscellaneous//Mathematics, Mathematics And Computers, Criticality 663620, And Information Science, Neutron Transport, M Codes, 990200
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