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Title: Key metrics for HFIR HEU and LEU models

Abstract

This report compares key metrics for two fuel design models of the High Flux Isotope Reactor (HFIR). The first model represents the highly enriched uranium (HEU) fuel currently in use at HFIR, and the second model considers a low-enriched uranium (LEU) interim design fuel. Except for the fuel region, the two models are consistent, and both include an experiment loading that is representative of HFIR's current operation. The considered key metrics are the neutron flux at the cold source moderator vessel, the mass of 252Cf produced in the flux trap target region as function of cycle time, the fast neutron flux at locations of interest for material irradiation experiments, and the reactor cycle length. These key metrics are a small subset of the overall HFIR performance and safety metrics. They were defined as a means of capturing data essential for HFIR's primary missions, for use in optimization studies assessing the impact of HFIR's conversion from HEU fuel to different types of LEU fuel designs.

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1330553
Report Number(s):
ORNL/TM-2016/581
TRN: US1700446
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; HIGHLY ENRICHED URANIUM; SLIGHTLY ENRICHED URANIUM; FAST NEUTRONS; CALIFORNIUM 252; HFIR REACTOR; NEUTRON FLUX; DESIGN; COMPARATIVE EVALUATIONS; NUCLEAR CORES; CONVERSION; TIME DEPENDENCE; MASS; MODERATORS; OPTIMIZATION

Citation Formats

Ilas, Germina, Betzler, Benjamin R., Chandler, David, Renfro, David G., and Davidson, Eva E. Key metrics for HFIR HEU and LEU models. United States: N. p., 2016. Web. doi:10.2172/1330553.
Ilas, Germina, Betzler, Benjamin R., Chandler, David, Renfro, David G., & Davidson, Eva E. Key metrics for HFIR HEU and LEU models. United States. https://doi.org/10.2172/1330553
Ilas, Germina, Betzler, Benjamin R., Chandler, David, Renfro, David G., and Davidson, Eva E. 2016. "Key metrics for HFIR HEU and LEU models". United States. https://doi.org/10.2172/1330553. https://www.osti.gov/servlets/purl/1330553.
@article{osti_1330553,
title = {Key metrics for HFIR HEU and LEU models},
author = {Ilas, Germina and Betzler, Benjamin R. and Chandler, David and Renfro, David G. and Davidson, Eva E.},
abstractNote = {This report compares key metrics for two fuel design models of the High Flux Isotope Reactor (HFIR). The first model represents the highly enriched uranium (HEU) fuel currently in use at HFIR, and the second model considers a low-enriched uranium (LEU) interim design fuel. Except for the fuel region, the two models are consistent, and both include an experiment loading that is representative of HFIR's current operation. The considered key metrics are the neutron flux at the cold source moderator vessel, the mass of 252Cf produced in the flux trap target region as function of cycle time, the fast neutron flux at locations of interest for material irradiation experiments, and the reactor cycle length. These key metrics are a small subset of the overall HFIR performance and safety metrics. They were defined as a means of capturing data essential for HFIR's primary missions, for use in optimization studies assessing the impact of HFIR's conversion from HEU fuel to different types of LEU fuel designs.},
doi = {10.2172/1330553},
url = {https://www.osti.gov/biblio/1330553}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {10}
}