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- W2451498 abstract "The accurate and efficient simulation of coupled neutron-photon problems is necessary for several important radiation detection applications. Examples include the detection of nuclear threats concealed in cargo containers and prompt gamma neutron activation analysis for nondestructive determination of elemental composition of unknown samples. High-resolution gamma-ray spectrometers are used in these applications to measure the spectrum of the emitted photon flux, which consists of both continuum and characteristic gamma rays with discrete energies. Monte Carlo transport is the most commonly used simulation tool for this type of problem, but computational times can be prohibitively long. This work explores the use of multi-group deterministic methods for the simulation of coupled neutron-photon problems. The main purpose of this work is to benchmark several problems modeled with RADSAT and MCNP to experimental data. Additionally, the cross section libraries for RADSAT are updated to include ENDF/B-VII cross sections. Preliminary findings show promising results when compared to MCNP and experimental data, but also areas where additional inquiry and testing are needed. The potential benefits and shortcomings of the multi-group-based approach are discussed in terms of accuracy and computational efficiency." @default.
- W2451498 created "2016-06-24" @default.
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- W2451498 date "2011-07-01" @default.
- W2451498 modified "2023-09-24" @default.
- W2451498 title "RADSAT Benchmarks for Prompt Gamma Neutron Activation Analysis Measurements" @default.
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- W2451498 doi "https://doi.org/10.2172/1023121" @default.
- W2451498 hasPublicationYear "2011" @default.
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