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Title: (U) LNK3DNT Capability in SENSMG Extended

Technical Report ·
DOI:https://doi.org/10.2172/1511205· OSTI ID:1511205
 [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The SENSMG multigroup neutron sensitivity code can read materials and geometry from redoin and lnk3dnt files written by the PARTISN multigroup discrete ordinates code or the MCNP6 Monte Carlo code. This report describes the user interface for this capability and the code verification that was done. Reference 5 described an initial version of this capability. Two important extensions have been made: 1) Reaction-rate ratios are now allowed as responses with redoin/lnk3dnt inputs; and 2) Sensitivities of reaction-rate ratios to mass densities and interface locations are now calculated (for all problems, not just redoin/lnk3dnt problems).

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)
DOE Contract Number:
89233218CNA000001
OSTI ID:
1511205
Report Number(s):
LA-UR-19-23874
Country of Publication:
United States
Language:
English

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