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Title: Reactivity temperature coefficient for subcritical highly diluted plutonium systems

Abstract

Solutions of fissile materials are presently encountered in material processing streams and as waste materials generated from reprocessing of reactor fuel. For the most part, these solutions are being stored in tanks, for example, tank farms and underground tanks such as the ones located on the Hanford Site. Critical experiments have been performed on plutonium solutions at the Hanford Site and in France. These experiments explore the criticality characteristics of plutonium solutions, such as the effect of various reflectors around solutions of plutonium. Recently, several papers have been published on the long-term disposition of weapons-grade plutonium. Some of the configuration analyzed in the referenced papers are highly diluted plutonium systems, which exhibit positive temperature coefficients. Stratton and Kornerich performed similar calculations in the early 1980s and early 1990s and found that plutonium solutions having high H/Pu ratios indeed exhibit positive temperature coefficients. The purpose is to investigate if subcritical diluted plutonium systems continue to exhibit positive reactivity temperature coefficients.

Authors:
 [1]
  1. Los Alamos National Lab., NM (United States)
Publication Date:
OSTI Identifier:
678136
Report Number(s):
CONF-990605-
Journal ID: TANSAO; ISSN 0003-018X; TRN: 99:009121
Resource Type:
Journal Article
Journal Name:
Transactions of the American Nuclear Society
Additional Journal Information:
Journal Volume: 80; Conference: 1999 annual meeting of the American Nuclear Society (ANS), Boston, MA (United States), 6-10 Jun 1999; Other Information: PBD: 1999
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; 05 NUCLEAR FUELS; PLUTONIUM; CRITICALITY; TEMPERATURE COEFFICIENT; MULTIPLICATION FACTORS; ISOTOPE DILUTION; RADIOACTIVE WASTE STORAGE

Citation Formats

Sanchez, R. Reactivity temperature coefficient for subcritical highly diluted plutonium systems. United States: N. p., 1999. Web.
Sanchez, R. Reactivity temperature coefficient for subcritical highly diluted plutonium systems. United States.
Sanchez, R. Wed . "Reactivity temperature coefficient for subcritical highly diluted plutonium systems". United States.
@article{osti_678136,
title = {Reactivity temperature coefficient for subcritical highly diluted plutonium systems},
author = {Sanchez, R.},
abstractNote = {Solutions of fissile materials are presently encountered in material processing streams and as waste materials generated from reprocessing of reactor fuel. For the most part, these solutions are being stored in tanks, for example, tank farms and underground tanks such as the ones located on the Hanford Site. Critical experiments have been performed on plutonium solutions at the Hanford Site and in France. These experiments explore the criticality characteristics of plutonium solutions, such as the effect of various reflectors around solutions of plutonium. Recently, several papers have been published on the long-term disposition of weapons-grade plutonium. Some of the configuration analyzed in the referenced papers are highly diluted plutonium systems, which exhibit positive temperature coefficients. Stratton and Kornerich performed similar calculations in the early 1980s and early 1990s and found that plutonium solutions having high H/Pu ratios indeed exhibit positive temperature coefficients. The purpose is to investigate if subcritical diluted plutonium systems continue to exhibit positive reactivity temperature coefficients.},
doi = {},
journal = {Transactions of the American Nuclear Society},
number = ,
volume = 80,
place = {United States},
year = {1999},
month = {9}
}