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Title: Benchmarking of HEU Mental Annuli Critical Assemblies with Internally Reflected Graphite Cylinder

Abstract

Three experimental configurations of critical assemblies, performed in 1963 at the Oak Ridge Critical Experiment Facility, which are assembled using three different diameter HEU annuli (15-9 inches, 15-7 inches and 13-7 inches) metal annuli with internally reflected graphite cylinder are evaluated and benchmarked. The experimental uncertainties which are 0.00055, 0.00055 and 0.00055 respectively, and biases to the detailed benchmark models which are -0.00179, -0.00189 and -0.00114 respectively, were determined, and the experimental benchmark keff results were obtained for both detailed and simplified model. The calculation results for both detailed and simplified models using MCNP6-1.0 and ENDF VII.1 agree well to the benchmark experimental results with a difference of less than 0.2%. These are acceptable benchmark experiments for inclusion in the ICSBEP Handbook.

Authors:
; ;
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1367683
Report Number(s):
INL/CON-15-36497
Journal ID: ISSN 2100--014X
DOE Contract Number:
DE-AC07-05ID14517
Resource Type:
Conference
Resource Relation:
Journal Volume: 146; Conference: International Conference on Nuclear Data for Science and Technology (ND 2016), Bruges, Belgium, September 11–16, 2016
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Benchmark; Critical Experiment; Graphite; Highly Enriched Uranium; ICSBEP; Oralloy; ORCEF

Citation Formats

Xiaobo, Liu, Bess, John D., and Marshall, Margaret A.. Benchmarking of HEU Mental Annuli Critical Assemblies with Internally Reflected Graphite Cylinder. United States: N. p., 2016. Web. doi:10.1051/epjconf/201714606020.
Xiaobo, Liu, Bess, John D., & Marshall, Margaret A.. Benchmarking of HEU Mental Annuli Critical Assemblies with Internally Reflected Graphite Cylinder. United States. doi:10.1051/epjconf/201714606020.
Xiaobo, Liu, Bess, John D., and Marshall, Margaret A.. Thu . "Benchmarking of HEU Mental Annuli Critical Assemblies with Internally Reflected Graphite Cylinder". United States. doi:10.1051/epjconf/201714606020. https://www.osti.gov/servlets/purl/1367683.
@article{osti_1367683,
title = {Benchmarking of HEU Mental Annuli Critical Assemblies with Internally Reflected Graphite Cylinder},
author = {Xiaobo, Liu and Bess, John D. and Marshall, Margaret A.},
abstractNote = {Three experimental configurations of critical assemblies, performed in 1963 at the Oak Ridge Critical Experiment Facility, which are assembled using three different diameter HEU annuli (15-9 inches, 15-7 inches and 13-7 inches) metal annuli with internally reflected graphite cylinder are evaluated and benchmarked. The experimental uncertainties which are 0.00055, 0.00055 and 0.00055 respectively, and biases to the detailed benchmark models which are -0.00179, -0.00189 and -0.00114 respectively, were determined, and the experimental benchmark keff results were obtained for both detailed and simplified model. The calculation results for both detailed and simplified models using MCNP6-1.0 and ENDF VII.1 agree well to the benchmark experimental results with a difference of less than 0.2%. These are acceptable benchmark experiments for inclusion in the ICSBEP Handbook.},
doi = {10.1051/epjconf/201714606020},
journal = {},
number = ,
volume = 146,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 2016},
month = {Thu Sep 01 00:00:00 EDT 2016}
}

Conference:
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