Radiation Background and Attenuation Model Validation and Development

Technical Report · Wed Aug 05 00:00:00 EDT 2015

DOI:https://doi.org/10.2172/1236747· OSTI ID:1236747

Peplow, Douglas E. ^[1]; Santiago, Claudio P. ^[2]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

This report describes the initial results of a study being conducted as part of the Urban Search Planning Tool project. The study is comparing the Urban Scene Simulator (USS), a one-dimensional (1D) radiation transport model developed at LLNL, with the three-dimensional (3D) radiation transport model from ORNL using the MCNP, SCALE/ORIGEN and SCALE/MAVRIC simulation codes. In this study, we have analyzed the differences between the two approaches at every step, from source term representation, to estimating flux and detector count rates at a fixed distance from a simple surface (slab), and at points throughout more complex 3D scenes.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-07NA27344
• OSTI ID: 1236747
• Report Number(s): LLNL-TR-675956
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
97 MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE