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Production test IP-2-A: Enriched uranium conversion ratio and stability test

Description: This test as detailed in this report is one of three parts of the initial testing program to demonstrate enriched usage at HAPO. It proposes to irradiate two twelve-tube blocks of enriched uranium and lithium-aluminum slugs to obtain conversion ratios and preliminary information concerning slug stability.
Date: November 12, 1956
Creator: Lang, L. W.
Partner: UNT Libraries Government Documents Department
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Status report -- Fuel element machining

Description: This report summarizes the design and development work completed since May, 1957; the current status of fuel element matching problems, and the plans for future modifications to improve machining techniques.
Date: February 12, 1958
Creator: Nickolaus, J. W.
Partner: UNT Libraries Government Documents Department
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Proceedings of the 1988 International Meeting on Reduced Enrichment for Research and Test Reactors

Description: The international effort to develop and implement new research reactor fuels utilizing low-enriched uranium, instead of highly- enriched uranium, continues to make solid progress. This effort is the cornerstone of a widely shared policy aimed at reducing, and possibly eliminating, international traffic in highly-enriched uranium and the nuclear weapon proliferation concerns associated with this traffic. To foster direct communication and exchange of ideas among the specialists in this area, the… more
Date: July 1, 1993
Partner: UNT Libraries Government Documents Department
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Electrorefining {open_quotes}N{close_quotes} reactor fuel

Description: Principles of purifying of uranium metal by electrorefining are reviewed. Metal reactor fuel after irradiation is a form of impure uranium. Dissolution and deposition electrorefining processes were developed for spent metal fuel under the Integral Fast Reactor Program. Application of these processes to the conditioning of spent N-reactor fuel slugs is examined.
Date: February 1, 1995
Creator: Gay, E. C. & Miller, W. E.
Partner: UNT Libraries Government Documents Department
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Using low-enriched uranium in research reactors: The RERTR program

Description: The goal of the RERTR program is to minimize and eventually eliminate use of highway enriched uranium (HEU) in research and test reactors. The program has been very successful, and has developed low-enriched uranium (LEU) fuel materials and designs which can be used effectively in approximately 90 percent of the research and test reactors which used HEU when the program began. This progress would not have been possible without active international cooperation among fuel developers, commercial v… more
Date: May 1, 1994
Creator: Travelli, A.
Partner: UNT Libraries Government Documents Department
open access

Effect of power on demand surface and flow instability for annular geometry fuel elements with upflow of coolant

Description: Analytical studies of the effects of power on flow instability in parallel channels with upward flow of coolant, have predicted that the Ledinegg flow instability, encountered as flow is decreased for typical operating power levels, would not be experienced at low power levels. For a system in which the flow of coolant is upward, the increased buoyancy enhances flow in the channel, so that as the void increases, the overall pressure loss decreases. Under this condition, flow instability does no… more
Date: May 1, 1993
Creator: Smith, A. C.; Blake, J. E; Childerson, M. T.; Ohrn, T. R. & Privette, R. M.
Partner: UNT Libraries Government Documents Department
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Field measurements to support IAEA procedures development for fuel assembly and fuel rod active length verification

Description: The activities performed in verification of reactor fuel rods and assemblies by International Atomic Energy Agency (IAEA) safeguards inspectors include measurements of the length of the enriched uranium sections in fuel assemblies and fuel rods. These measurements are normally made with the IAEA hand-held gamma monitor (HM-4) on fuel elements containing only enriched uranium. Many fuel rods currently in use contain natural uranium end sections and several different {sup 235}U enrichment zones. … more
Date: July 17, 1992
Creator: Belew, W. L.; Cooley, J. N. & Whitaker, J. M.
Partner: UNT Libraries Government Documents Department
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Reduced enrichment for research and test reactors: Proceedings

Description: The 15th annual Reduced Enrichment for Research and Test Reactors (RERTR) international meeting was organized by Ris{o} National Laboratory in cooperation with the International Atomic Energy Agency and Argonne National Laboratory. The topics of the meeting were the following: National Programs, Fuel Fabrication, Licensing Aspects, States of Conversion, Fuel Testing, and Fuel Cycle. Individual papers have been cataloged separately.
Date: July 1, 1993
Partner: UNT Libraries Government Documents Department
open access

Remote real time x-ray examination of fuel elements in a hot cell environment

Description: This report discusses the Remote Real Time X-ray System which will allow for detailed examination of fuel elements. This task will be accomplished in a highly radioactive hot cell environment. Two remote handling systems win be utilized at the examination station. One handling system will transfer the fuel element to and from the shielded x-ray system. A second handling system will allow for vertical and rotational inspection of the fuel elements. The process win include removing a single nucle… more
Date: March 1, 1993
Creator: Yapuncich, F. L.
Partner: UNT Libraries Government Documents Department
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