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Title: Verification of the MCNP (TM) Perturbation Correction Feature for Cross-Section Dependent Tallies

Technical Report ·
DOI:https://doi.org/10.2172/1197· OSTI ID:1197

The Monte Carlo N-Particle Transport Code MCNP version 4B perturbation capability has been extended to cross-section dependent tallies and to the track-length estimate of Iqff in criticality problems. We present the complete theory of the MCNP perturbation capability including the correction to MCNP4B which enables cross-section dependent perturbation tallies. We also present the MCNP interface as an upgrade to the MCNP4B manual. Finally, we present test results demonstrating the validity of the perturbation capability in MCNP, particularly cross-section dependent problems.

Research Organization:
Los Alamos National Laboratory, Los Alamos, NM
Sponsoring Organization:
USDOE Office of Environmental
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
1197
Report Number(s):
LA-13520; ON: DE00001197
Country of Publication:
United States
Language:
English