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in subjects: "Isotope Separation"  
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Experimental and computer modeling studies of isotopically selective two-step laser photodissociation of small molecules

Description: The approach to laser isotope separation taken in this study is based on isotopically selective, two-step, laser photodissociation of small molecules. A primary goal of this study is the measurement of fundamental molecular processes which control the two-step, photodissociative isotope enrichment process. This objective has led to experimental measurements of uv photodissociation cross sections for vibrationally excited states of several small molecules, including the first cross section repor… more
Date: March 25, 1992
Creator: Zittel, P.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The plasma centrifuge (A compact, low cost, stable isotope separator)

Description: The Mark-I centrifuge assembly includes an electromagnet, a vacuum chamber, and a Nd:YAG laser. Three tasks have been completed: design, component order, and laboratory test cell preparation. Two task are being pursued: design plasma diagnostics/collection hardware/mass analyzers, and assemble Mark I centrifuge. Experiments with rotation of C plasmas will be conducted. 4 figs.
Date: January 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Liquid centrifugation for nuclear waste partitioning

Description: The performance of liquid centrifugation for nuclear waste partitioning is examined for the Accelerator Transmutation of Waste Program currently under study at the Los Alamos National Laboratory. Centrifugation might have application for the separation of the LiF-BeF{sub 2} salt from heavier radioactive materials fission product and actinides in the separation of fission product from actinides, in the isotope separation of fission-product cesium before transmutation of the {sup 137}Cs and {sup … more
Date: March 11, 1992
Creator: Bowman, C. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Growth and characterization of isotopically enriched {sup 70}Ge and {sup 74}Ge single crystals

Description: Isotopically enriched {sup 70}Ge and {sup 74}Ge single crystals were successfully gown by a newly developed vertical Bridgman method. The system allows us to reliably grow high purity Ge single crystals of approximately 1 cm{sup 3} volume. To our knowledge, we have grown the first {sup 70}Ge single crystal. The electrically active chemical impurity concentration for both crystals was found to be {approximately}2 {times} cm{sup {minus}3} which is two order of magnitude better that of {sup 74}Ge … more
Date: October 1, 1992
Creator: Itoh, Kohei
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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SRS scientific and technical abstracts, July--September 1992

Description: This document focuses on the scientific and technical information (STT) reports, articles, and presentations generated at the site by various authors and organizations of Westinghouse Savannah River Company and its subcontractors. Abstracts of these STI products are contained within this document. The abstracts have been compiled as they originally appeared in the source reports. No changes to the content have been made except as necessary to correct errors of spelling, to reduce abstract lengt… more
Date: October 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phases in lanthanum-nickel-aluminum alloys. Part 2

Description: Lanthanum-nickel-aluminum (LANA) alloys will be used to pump, store and separate hydrogen isotopes in the Replacement Tritium Facility (RTF). The aluminum content (y) of the primary LaNi{sub 5}-phase is controlled to produce the desired pressure-temperature behavior for adsorption and desorption of hydrogen. However, secondary phases cause decreased capacity and some may cause undesirable retention of tritium. Twenty-three alloys purchased from Ergenics, Inc. for development of RTF processes ha… more
Date: August 1, 1992
Creator: Mosley, W. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Liquid centrifugation for nuclear waste partitioning

Description: The performance of liquid centrifugation for nuclear waste partitioning is examined for the Accelerator Transmutation of Waste Program currently under study at the Los Alamos National Laboratory. Centrifugation might have application for the separation of the LiF-BeF{sub 2} salt from heavier radioactive materials fission product and actinides in the separation of fission product from actinides, in the isotope separation of fission-product cesium before transmutation of the {sup 137}Cs and {sup … more
Date: March 11, 1992
Creator: Bowman, C. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stable isotope studies. Final report, March 1, 1972--February 29, 1992

Description: The research has been in four general areas: (1) correlation of isotope effects with molecular forces and molecular structures, (2) correlation of zero-point energy and its isotope effects with molecular structure and molecular forces, (3) vapor pressure isotope effects, and (4) fractionation of stable isotopes. 73 refs, 38 figs, 29 tabs.
Date: October 1, 1992
Creator: Ishida, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Proceedings of the workshop on the production and use of intense radioactive beams at the Isospin Laboratory

Description: These proceedings report the deliberations of a 3 1/2 day workshop on the Production and Use of Intense Radioactive Ion Beams at the Isospin Laboratory, which was held at the Joint Institute for Heavy Ion Research in Oak Ridge, Tennessee, October 1992. The purpose of this workshop was not to duplicate the programs of other recent radioactive ion beam workshops or international conferences that have focused on the scientific concepts which radioactive beams can, and in fact already are, addressi… more
Date: December 31, 1992
Creator: Garrett, J. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Growth and characterization of isotopically enriched [sup 70]Ge and [sup 74]Ge single crystals

Description: Isotopically enriched [sup 70]Ge and [sup 74]Ge single crystals were successfully gown by a newly developed vertical Bridgman method. The system allows us to reliably grow high purity Ge single crystals of approximately 1 cm[sup 3] volume. To our knowledge, we have grown the first [sup 70]Ge single crystal. The electrically active chemical impurity concentration for both crystals was found to be [approximately]2 [times] cm[sup [minus]3] which is two order of magnitude better that of [sup 74]Ge … more
Date: October 1, 1992
Creator: Itoh, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stable isotope studies

Description: The research has been in four general areas: (1) correlation of isotope effects with molecular forces and molecular structures, (2) correlation of zero-point energy and its isotope effects with molecular structure and molecular forces, (3) vapor pressure isotope effects, and (4) fractionation of stable isotopes. 73 refs, 38 figs, 29 tabs.
Date: January 1, 1992
Creator: Ishida, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SRS scientific and technical abstracts, July--September 1992

Description: This document focuses on the scientific and technical information (STT) reports, articles, and presentations generated at the site by various authors and organizations of Westinghouse Savannah River Company and its subcontractors. Abstracts of these STI products are contained within this document. The abstracts have been compiled as they originally appeared in the source reports. No changes to the content have been made except as necessary to correct errors of spelling, to reduce abstract lengt… more
Date: October 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phases in lanthanum-nickel-aluminum alloys

Description: Lanthanum-nickel-aluminum (LANA) alloys will be used to pump, store and separate hydrogen isotopes in the Replacement Tritium Facility (RTF). The aluminum content (y) of the primary LaNi{sub 5}-phase is controlled to produce the desired pressure-temperature behavior for adsorption and desorption of hydrogen. However, secondary phases cause decreased capacity and some may cause undesirable retention of tritium. Twenty-three alloys purchased from Ergenics, Inc. for development of RTF processes ha… more
Date: January 1, 1992
Creator: Mosley, W. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

On-line nuclear orientation

Description: This report discusses: shape coexistence in {sup 184}Pt; nuclear structure of {sup 187}Ir; g-factors of excited states; OLNO-2; and refrigerator development.
Date: January 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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