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Title: Zeus: Fast-spectrum critical assemblies with an iron-HEU core surrounded by a copper reflector

Abstract

Experiments to investigate critical systems of iron moderated highly enriched uranium in the intermediate-energy range were attempted. However, due to size limitations, the systems fell into the fast-energy range. Two critical configurations were established with a uranium mass of {approx} 198 kg and a Fe/{sup 235}U Ratio of {approx}15. Experimental uncertainties were systematically evaluated to estimate their effect on multiplication. The combined uncertainty for these experiments is estimated to be {+-}0.0024 {Delta}{sub eff}. Consequently, both Zeus iron configurations are judged to be acceptable for use as criticality-safety benchmark experiments. (authors)

Authors:
; ;  [1]
  1. Los Alamos National Laboratory, PO Box 1663, Los Alamos, NM 87545 (United States)
Publication Date:
Research Org.:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
OSTI Identifier:
22039548
Resource Type:
Conference
Resource Relation:
Conference: PHYSOR-2006: American Nuclear Society's Topical Meeting on Reactor Physics - Advances in Nuclear Analysis and Simulation, Vancouver, BC (Canada), 10-14 Sep 2006; Other Information: Country of input: France
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; BENCHMARKS; COPPER; CRITICALITY; FAST NEUTRONS; HIGHLY ENRICHED URANIUM; IRON; MULTIPLICATION FACTORS; NEUTRON REFLECTORS; REACTOR SAFETY; URANIUM 235; ZERO POWER REACTORS

Citation Formats

Hayes, D. K., Sanchez, R. G., and Kahler, A. C. Zeus: Fast-spectrum critical assemblies with an iron-HEU core surrounded by a copper reflector. United States: N. p., 2006. Web.
Hayes, D. K., Sanchez, R. G., & Kahler, A. C. Zeus: Fast-spectrum critical assemblies with an iron-HEU core surrounded by a copper reflector. United States.
Hayes, D. K., Sanchez, R. G., and Kahler, A. C. Sat . "Zeus: Fast-spectrum critical assemblies with an iron-HEU core surrounded by a copper reflector". United States.
@article{osti_22039548,
title = {Zeus: Fast-spectrum critical assemblies with an iron-HEU core surrounded by a copper reflector},
author = {Hayes, D. K. and Sanchez, R. G. and Kahler, A. C.},
abstractNote = {Experiments to investigate critical systems of iron moderated highly enriched uranium in the intermediate-energy range were attempted. However, due to size limitations, the systems fell into the fast-energy range. Two critical configurations were established with a uranium mass of {approx} 198 kg and a Fe/{sup 235}U Ratio of {approx}15. Experimental uncertainties were systematically evaluated to estimate their effect on multiplication. The combined uncertainty for these experiments is estimated to be {+-}0.0024 {Delta}{sub eff}. Consequently, both Zeus iron configurations are judged to be acceptable for use as criticality-safety benchmark experiments. (authors)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {7}
}

Conference:
Other availability
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