SciTech Connect

Title: Preliminary Benchmarking Efforts and MCNP Simulation Results for Homeland Security

Preliminary Benchmarking Efforts and MCNP Simulation Results for Homeland Security It is shown in this work that basic measurements made from well defined source detector configurations can be readily converted in to benchmark quality results by which Monte Carlo N-Particle (MCNP) input stacks can be validated. Specifically, a recent measurement made in support of national security at the Nevada Test Site (NTS) is described with sufficient detail to be submitted to the American Nuclear Society’s (ANS) Joint Benchmark Committee (JBC) for consideration as a radiation measurement benchmark. From this very basic measurement, MCNP input stacks are generated and validated both in predicted signal amplitude and spectral shape. Not modeled at this time are those perturbations from the more recent pulse height light (PHL) tally feature, although what spectral deviations are seen can be largely attributed to not including this small correction. The value of this work is as a proof-of-concept demonstration that with well documented historical testing can be converted into formal radiation measurement benchmarks. This effort would support virtual testing of algorithms and new detector configurations.
Authors:
Publication Date:
OSTI Identifier:OSTI ID: 928972
Report Number(s):DOE/NV/25946--431
TRN: US200812%%726
DOE Contract Number:DE-AC52-06NA25946
Resource Type:Conference
Resource Relation:Conference: 11th International Conference on Radiation Shielding (ICRS-11) and the 15th Topical Meeting of the Radiation Protection and Shielding Division of the American Nuclear Society
Research Org:National Security Technologies, LLC
Sponsoring Org:USDOE - National Nuclear Security Administration (NNSA)
Country of Publication:United States
Language:English
Subject: 61 RADIATION PROTECTION AND DOSIMETRY; ALGORITHMS; AMPLITUDES; BENCHMARKS; NATIONAL SECURITY; NEVADA TEST SITE; RADIATION PROTECTION; RADIATIONS; SECURITY; SHAPE; SHIELDING; SIMULATION; TESTING Monte Carlo, Benchmark, Detector, Homeland Security, Testing