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in subjects: "Isotope Separation"  
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DEMONSTRATION OF THE NEXT-GENERATION TCAP HYDROGEN ISOTOPE SEPARATION PROCESS

Description: The first generation of TCAP hydrogen isotope separation process has been in service for tritium separation at the Savannah River Site since 1994. To prepare for replacement, a next-generation TCAP process has been developed. This new process simplifies the column design and reduces the equipment requirements of the thermal cycling system. An experimental twelve-meter column was fabricated and installed in the laboratory to demonstrate its performance. This new design and its initial test resul… more
Date: January 9, 2009
Creator: Heung, L; Henry Sessions, H; Steve Xiao, S & Heather Mentzer, H
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Moving toward multilateral mechanisms for the fuel cycle

Description: Multilateral mechanisms for the fuel cycle are seen as a potentially important way to create an industrial infrastructure that will support a renaissance and at the same time not contribute to the risk of nuclear proliferation. In this way, international nuclear fuel cycle centers for enrichment can help to provide an assurance of supply of nuclear fuel that will reduce the likelihood that individual states will pursue this sensitive technology, which can be used to produce nuclear material dir… more
Date: April 17, 2009
Creator: Panasyuk,A.; Rosenthal,M. & Efremov, G. V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Profile of World Uranium Enrichment Programs-2009

Description: It is generally agreed that the most difficult step in building a nuclear weapon is acquiring fissile material, either plutonium or highly enriched uranium (HEU). Plutonium is produced in a nuclear reactor, whereas HEU is produced using a uranium enrichment process. Enrichment is also an important step in the civil nuclear fuel cycle, in producing low enriched uranium (LEU) for use as fuel for nuclear reactors to generate electricity. However, the same equipment used to produce LEU for nuclear … more
Date: April 1, 2009
Creator: Laughter, Mark D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Partial Safety Analysis for a Reduced Uranium Enrichment Core for the High Flux Isotope Reactor

Description: A computational model of the reactor core of the High Flux Isotope Rector (HFIR) was developed in order to analyze non-destructive accidents caused by transients during reactor operation. The reactor model was built for the latest version of the nuclear analysis software package called Program for the Analysis of Reactor Transients (PARET). Analyses performed with the model constructed were compared with previous data obtained with other tools in order to benchmark the code. Finally, the model … more
Date: April 1, 2009
Creator: Primm, Trent & Gehin, Jess C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

RADIATION STABILITY OF NAFION MEMBRANES USED FOR ISOTOPE SEPARATION BY PROTON EXCHANGE MEMBRANE ELECTROLYSIS

Description: Proton Exchange Membrane Electrolyzers have potential interest for use for hydrogen isotope separation from water. In order for PEME to be fully utilized, more information is needed on the stability of Nafion when exposed to radiation. This work examines Nafion 117 under varying exposure conditions, including dose rate, total dosage and atmospheric condition. Analytical tools, such as FT-IR, ion exchange capacity, DMA and TIC-TOC were used to characterize the exposed membranes. Analysis of the … more
Date: May 15, 2009
Creator: Fox, E
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Potential National Security Applications of Nuclear Resonance Fluorescence Methods

Description: The objective of this report is to document the initial investigation into the possible research issues related to the development of NRF-based national security applications. The report discusses several potential applications ranging from measuring uranium enrichment in UF6 canisters to characterization of gas samples. While these applications are varied, there are only a few research issues that need to be addressed to understand the limitation of NRF in solving these problems. These researc… more
Date: June 9, 2009
Creator: Warren, Glen A.; Peplowski, Patrick N. & Caggiano, Joseph A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Study of Chemical Changes in Uranium Oxyfluoride Particles Progress Report March - October 2009

Description: Nuclear forensics relies on the analysis of certain sample characteristics to determine the origin and history of a nuclear material. In the specific case of uranium enrichment facilities, it is the release of trace amounts of uranium hexafluoride (UF{sub 6}) gas - used for the enrichment of uranium - that leaves a process-characteristic fingerprint. When UF{sub 6} gas interacts with atmospheric moisture, uranium oxyfluoride particles or particle agglomerates are formed with sizes ranging from … more
Date: November 22, 2009
Creator: Kips, R.; Kristo, M. & Hutcheon, I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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