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Home / Publications / Journals / Nuclear Technology / Volume 180 / Number 3

The MCNP6 Delayed-Particle Feature

Joe W. Durkee, Jr., Michael R. James, Gregg W. McKinney, Laurie S. Waters, Tim Goorley

Nuclear Technology / Volume 180 / Number 3 / December 2012 / Pages 336-354

Technical Paper / Special Issue on the Initial Release of MCNP6 / Radiation Transport and Protection /

The interaction of radiation with matter can cause activation or fission reactions producing unstable residuals that decay with the emission of delayed-neutron and/or delayed-gamma radiation. This delayed radiation can be exploited for a variety of purposes, including homeland security, health physics, instrumentation and equipment design, and nuclear forensics. Here we report on capability that has been developed to provide automated simulations of delayed-neutron and/or delayed-gamma radiation using MCNP6. We present new high-fidelity delayed-gamma simulation results for models based on the neutron-fission experiments conducted by Beddingfield and Cecil to illustrate and validate this powerful feature.

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