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in subjects: "Isotope Separation"  
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Lasers in chemical processing

Description: The high cost of laser energy is the crucial issue in any potential laser-processing application. It is expensive relative to other forms of energy and to most bulk chemicals. We show those factors that have previously frustrated attempts to find commercially viable laser-induced processes for the production of materials. Having identified the general criteria to be satisfied by an economically successful laser process and shown how these imply the laser-system requirements, we present a status… more
Date: April 15, 1982
Creator: Davis, J.I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Large scale copper vapor laser computer control system

Description: High power pulse copper vapor laser systems consist of a master oscillator and numerous power amplifiers. Large systems used in laser isotope separation experiments require several automatic control systems. The rapid development of compact mini computers over the past several years has enabled the implementation of sophisticated computer controlled copper vapor laser systems. Present systems provide automatic time synchronization and input power stabilization. Future systems will incorporate s… more
Date: May 15, 1979
Creator: LaChapell, M. J.; Spencer, L. W. & Coutts, G. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Progress Report No. 65 Aug. 15-Sept. 15, 1948

Description: This is a progress report on the following: (1) 184-inch Cyclotron Program; (2) 60-inch Cyclotron Operation; (3) Synchrotron Program; (4) Linear Accelerator Operation; (5) Experimental Physics; (6) Theoretical Physics; (7) Isotope Separation Program; (8) Chemistry; (9) Medical Physics; and (10) Health Chemistry and Physics.
Date: September 15, 1948
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fabrication of Separator Demonstration Facility process vessel

Description: The process vessel system is the central element in the Separator Development Facility (SDF). It houses the two major process components, i.e., the laser-beam folding optics and the separators pods. This major subsystem is the critical-path procurement for the SDF project. Details of the vaious parts of the process vessel are given.
Date: January 15, 1985
Creator: Oberst, E.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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AVLIS Production Plant Project Management Plan

Description: The AVLIS Production Plant is designated as a Major System Acquisition (in accordance with DOE Order 4240.IC) to deploy Atomic Vapor Laser Isotope Separation (AVLIS) technology at the Oak Ridge, Tennessee site, in support of the US Uranium Enrichment Program. The AVLIS Production Plant Project will deploy AVLIS technology by performing the design, construction, and startup of a production plant that will meet capacity production requirements of the Uranium Enrichment Program. The AVLIS Producti… more
Date: November 15, 1984
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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AVLIS production plant project schedule and milestones

Description: An AVLIS Production Plant Deployment Schedule for the engineering, procurement, and construction for both the Initial Increment of Production and the fully Activated Plant, has been developed by the project team consisting of Lawrence Livermore National Laboratory, Martin Marietta Energy Systems, Inc. with architect-engineer support from Bechtel National, Inc., Stone and Webster Engineering Corporation, and Westinghouse Corporation. The initial deployment phase consists of six separators module… more
Date: November 15, 1984
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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AVLIS documentation overview and tables of contents

Description: Three documents constitute the executive summary series in Data Package III: this document (Documentation Overview and Tables of Contents (E001)) plus the AVLIS Production Plant Executive Summary (E010) and the AVLIS Production Plant Overall Design Report (E020). They provide progressively greater detail on the key information and conclusions contained within the data package. The Executive Summary and Overall Design Report present summaries of each Data Package III document. They are intended … more
Date: November 15, 1984
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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AVLIS industrial access program

Description: This document deals with the procurements planned for the construction of an Atomic Vapor Laser Isotope Separation (AVLIS) production plant. Several large-scale AVLIS facilities have already been built and tested; a full-scale engineering demonstration facility is currently under construction. The experience gained from these projects provides the procurement basis for the production plant construction and operation. In this document, the status of the AVLIS process procurement is presented fro… more
Date: November 15, 1984
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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AVLIS Production Plant work breakdown structure and Dictionary

Description: The work breakdown structure has been prepared for the AVLIS Production Plant to define, organize, and identify the work efforts and is summarized in Fig. 1-1 for the top three project levels. The work breakdown structure itself is intended to be the primary organizational tool of the AVLIS Production Plant and is consistent with the overall AVLIS Program Work Breakdown Structure. It is designed to provide a framework for definition and accounting of all of the elements that are required for th… more
Date: November 15, 1984
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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AVLIS Production Plant Preliminary Quality Assurance Plan and Assessment

Description: This preliminary Quality Assurance Plan and Assessment establishes the Quality Assurance requirements for the AVLIS Production Plant Project. The Quality Assurance Plan defines the management approach, organization, interfaces, and controls that will be used in order to provide adequate confidence that the AVLIS Production Plant design, procurement, construction, fabrication, installation, start-up, and operation are accomplished within established goals and objectives. The Quality Assurance Pr… more
Date: November 15, 1984
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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AVLIS production plant waste management plan

Description: Following the executive summary, this document contains the following: (1) waste management facilities design objectives; (2) AVLIS production plant wastes; (3) waste management design criteria; (4) waste management plan description; and (5) waste management plan implementation. 17 figures, 18 tables.
Date: November 15, 1984
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermal diffusion development design parameter calculations for a pilot thermal diffusion apparatus. Part 1

Description: Atomic Energy Commission has expressed interest in obtaining xenon with a composite neutron absorption cross section of less than one barn. This material may be obtainable from the off-gas of the Purex dissolver. A proposed gas purification facility would process the Purex off-gas through two distillation steps for isolation of a ``rough`` cut of xenon isotopes containing principally Xe{sup 131}, Xe{sup 132}, Xe{sup 134}, Xe{sup 136}, and a small quantity of krypton. This material would become … more
Date: June 15, 1959
Creator: Brandt, H. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tunable lasers in isotope separation, a colorful view of a dye chemist

Description: Some of the problems to be encountered in the large-scale use of dye lasers in an isotope separation plant are discussed. Why should dye lasers be employed. How can dye conversion efficiency be optimized. How can dye photochemical decomposition and hence running costs be minimized and how serious is this effect anyway. What are toxicity problems with the dye. These and similar issues are examined.
Date: December 15, 1976
Creator: Hammond, P. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Thermal Diffusion Development Design of Experiments

Description: The Facilities Engineering Operation of the Chemical Processing Department prepared a process study scope design of a large thermal diffusion plant for xenon isotope separation. This scoping was done perforce on the basis of calculations made from exclusively theoretical considerations because actual design data are not available. The designers are of the opinion, however, that, such a basis is not adequate to justify the construction of the plant and have, therefore, requested that an appropri… more
Date: June 15, 1959
Creator: Brandt, H. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermal Diffusion Development Design of Main Equipment

Description: This paper presents a scope design of two coaxial type thermal diffusion columns. These experimental columns are proposed to meet the requirements of the research and development program given in Part 2 of this report series. They would rearrange the isotopes of xenon from the Case II product of the Purex Gas Separations Facility to yield a product with a composite neutron absorption cross section of less than one barn. The theoretical basis for the design is given in Part 1. The auxiliary equi… more
Date: June 15, 1959
Creator: Brandt, H. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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
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Characterization of Post-Cleaning Solids Samples from the 2H Evaporator Pot

Description: Samples retrieved from the 2H Evaporator Pot in October of 2003 were of a similar nature as previous materials. The bulk of the sample was comprised of a sodium aluminosilicate phase, cancrinite. The concentration of uranium in the evaporator solids,however, was very low:less than 0.1 percentage weight. The uranium enrichment was depleted as expected and measured 0.6 percent. These data agree with uranium contents generated during experimental testing. Additionally, the overall specific radionu… more
Date: March 15, 2004
Creator: WILMARTH, WILLIAM
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nuclear Proliferation Using Laser Isotope Separation -- Verification Options

Description: Two levels of nonproliferation verification exist. Signatories of the basic agreements under the Nuclear Non-proliferation Treaty (NPT) agree to open their nuclear sites to inspection by the IAEA. A more detailed and intrusive level was developed following the determination that Iraq had begun a nuclear weapons development program that was not detected by the original level of verification methods. This level, referred to as 93+2 and detailed in model protocol INFCIRC/540, allows the IAEA to do… more
Date: October 15, 2001
Creator: Erickson, S A
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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PRODUCTION OF STRONTIUM-TITANATE RADIOISOTOPE FUEL FOR SNAP 7B THERMOELECTRIC GENERATOR

Description: The conversion of strontium-90 to strontium titanate heat source pellets is described. Encapsulation of the fuel in Hastelloy C containers and necessary leak testing, decontamination and calorimetry procedures are covered. Loading of the SNAP 7B thermoelectric generator was accomplished. (auth)
Date: April 15, 1963
Creator: Bloom, J.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Neutronic assessment of stringer fuel assembly design for liquid-salt-cooledvery high temperature reactor (LS-VHTR).

Description: Neutronic studies of 18-pin and 36-pin stringer fuel assemblies have been performed to ascertain that core design requirements for the Liquid-Salt Cooled Very High Temperature Reactor (LS-VHTR) can be met. Parametric studies were performed to determine core characteristics required to achieve a target core cycle length of 18 months and fuel discharge burnup greater than 100 GWd/t under the constraint that the uranium enrichment be less than 20% in order to support non-proliferation goals. The s… more
Date: September 15, 2006
Creator: Szakaly, F. J.; Kim, T. K. & Taiwo, T. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Biosynthetic Approaches to Isotope Enrichment for Applications in Neutron Scattering and High Field NMR Spectroscopy: Methylotrophic

Description: Limitations in current isotopic labeling methods present a substantial bottleneck for the application of advanced structural techniques to many important biochemical problems. New tools are required to efficiently produce the necessary labeling patterns in biochemical precursors and incorporate them into protein molecules for structural studies. This project proposed involved one aspect of this problem, the development of expression vectors for a methylotrophic bacterium, Methylobacterium extor… more
Date: September 15, 2004
Creator: lidstrom, Mary E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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