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Accession Number DE13-1105937
Title ADVANTG-An Automated Variance Reduction Parameter Generator.
Publication Date Nov 2013
Media Count 105p
Personal Author A. M. Bevill A. M. Ibrahim C. R. Daily J. C. Wagner J. O. Johnson R. E. Grove S. R. Johnson S. W. Mosher T. M. Evans
Abstract The AutomateD VAriaNce reducTion Generator (ADVANTG) software automates the generation of variance reduction (VR) parameters for continuous-energy Monte Carlo simulations of fixed-source neutron, photon, and coupled neutron-photon transport problems using MCNP5 (X-5 Monte Carlo Team 2003). ADVANTG generates space- and energy-dependent mesh-based weight-window bounds and biased source distributions from three-dimensional (3-D) discrete ordinates (SN) calculations that are performed by the Denovo package (Evans et al. 2010). The deterministic calculations can be performed using multiple cores and/or processors (e.g., on multi-core desktop systems and clusters). The final variance reduction parameters are output in a format that can be used with unmodified versions of MCNP. The primary objective of the development of ADVANTG has been to reduce both the user effort and the computational time required to obtain accurate and precise tally estimates across a broad range of challenging transport application areas. ADVANTG has been applied to simulations of real-world radiation shielding, detection, and neutron activation problems.
Keywords ADVANTG computer software
Computer codes
Detection
Discrete ordinate method
Monte Carlo method
Neutron activation analysis
Photons
Radiation shielding
Simulation


 
Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 46 - Physics
77 - Nuclear Science & Technology
Corporate Author Oak Ridge National Lab., TN.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1412
Contract Number DE-AC05-00OR22725

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