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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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Qualification of reserve RTF Pd/Z: Task technical plan

Description: Palladium deposited on zeolite (Pd/Z) used in the Purge Stripper System in the Replacement Tritium Facility (RTF) was produced using tetraamminepalladium (II) nitrate and 4{times}8 mesh beads of Type 4A zeolite. In March 1991, RTF requested that an additional 100 liters of Pd/Z be procured as reserve material, half by ETS and half from Ionex Research Corp. Objective of this activity is to confirm that Reserve RTF Pd/Z meets the technical requirements of the Specification WCM-4 for procurement o… more
Date: June 16, 1994
Creator: Mosley, W. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Novel wave/ion beam interaction approach to isotope separation

Description: Numerical simulations and experimental studies have been made related to the possibility of employing an externally imposed electrostatic potential wave to separate isotopes. This wave/ion interaction is a sensitive function of the wave/ion difference velocity and for the appropriate wave amplitude and wave speed, a lighter faster isotope will be reflected by the wave to a higher energy while leaving heavier, slower isotopes virtually undisturbed in energy -- allowing subsequent ion separation … more
Date: February 1, 1993
Creator: Post, R. F.; Lowder, R. S.; Schwager, L. A.; Barr, W. L. & Warner, B. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Improvements to the helium-jet coupled on-line mass separator RAMA

Description: Some general improvements to the on-line mass separator RAMA have yielded a factor of five increase in yield for most elements. By placing the ion source region at the full accelerating potential of 20 kV, the effective skimmer-plasma distance has been reduced from 12 cm to <2 cm. Changes in the helium-jet chamber and large volume pumping arrangement necessitated by placing the ion source region at high voltage are also given. Finally, details for a new highly shielded detector station are pres… more
Date: August 1, 1986
Creator: Bloennigen, F. B.; Moltz, D. M.; Lang, T. F.; Knoll, W. F.; Xu, X.; Hotchkis, M. A. C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Flow in a metal hydride chromatographic column

Description: The flow of hydrogen isotopes in a metal hydride chromatographic column is calculated by a one-dimensional finite difference method. The Ergun equation is used to define the gas flow; and equilibrium pressure isotherms are used to define the column holdup. Solid phase loadings are shown to move as a wave front on absorption, but remain more uniform on desorption. 3 refs., 4 figs.
Date: January 1, 1990
Creator: Nichols, G.S.
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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The plasma centrifuge (A compact, low cost, stable isotope separator). Progress report, [September 15, 1991--September 14, 1992]

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: December 31, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Laser enhanced microwave plasma isotope separation. Progress report, September 30, 1992--April 15, 1993

Description: We are developing an innovative method of isotope enrichment using laser enhanced microwave/electron cyclotron resonance (ECR) discharges. Experimental research is focusing on laser excitation of a low abundance isotope and then ionization and separation using a microwave/ECR discharge at 2.45 GHz. The first six months of the grant period have focused on modifying the plans for the ion source to include accessibility for laser excitation. Construction of the ion source has begun and is close to… more
Date: April 1, 1993
Creator: Brake, M. L. & Gilgenbach, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Stable isotope research pool inventory

Description: This report contains a listing of electromagnetically separated stable isotopes which are available at the Oak Ridge National Laboratory for distribution for nondestructive research use on a loan basis. This inventory includes all samples of stable isotopes in the Research Materials Collection and does not designate whether a sample is out on loan or is in reprocessing. For some of the high-abundance, naturally occurring isotopes, larger amounts can be made available; for example, Ca-40 and Fe-… more
Date: February 1, 1988
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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Tritium confinement in a new tritium processing facility at the Savannah River Site

Description: A new tritium processing facility, named the Replacement Tritium Facility (RTF), has been completed and is being prepared for startup at the Savannah River Site (SRS). The RTF has the capability to recover, purify and separate hydrogen isotopes from recycled gas containers. A multilayered confinement system is designed to reduce tritium losses to the environment. This confinement system is expected to confine and recover any tritium that might escape the process equipment, and to maintain the t… more
Date: December 31, 1991
Creator: Heung, L. K.; Owen, J. H.; Hsu, R. H.; Hashinger, R. F.; Ward, D. E. & Bandola, P. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Pressure and field strength considerations on the plasma centrifuge for isotope separation

Description: The plasma centrifuge is shown to give an isotope separation ratio alpha approximately equal to the gamma power of the rotationally induced pressure ratio, where gamma is isotope mass difference divided by mean particle mass. This assumes an ideal gas model. An analytical solution for the velocity profile is found for viscous incompressible conducting fluid with radial electric current and axial magnetic field in a cylindrical annulus. The separation ratio is estimated as the ..delta..m/m power… more
Date: June 1, 1976
Creator: Lessor, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research programs in support of Savannah River

Description: The information pertaining to the programs of AEC National Laboratories and other AEC contractors in direct support of the Savannah River project during Fiscal Years 1957 and 1958. The major part of this supporting work we are recommending is associated with the development and the experimental production of extended-surface elements for increasing the Plant productivity of plutonium and tritium. For the first time a portion of this work on the development of extended-surface elements is aimed … more
Date: April 19, 1956
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Advanced Processing Technology semiannual report, March--December 1991. Volume 1, Number 1

Description: This first issue of the APT Semiannual Report focuses on APT`s defense-related technologies. These technologies are a continuation of the research, development, and engineering work performed by LLNLs Special Isotope Separation (SIS) Program. SIS was the first large-scale DOE venture that had environmentally conscious manufacturing processes and facilities as its deliverables. The objectives were to create a facility where the only outputs were either usable products or disposable wastes, and t… more
Date: December 31, 1991
Creator: Adamson, M. & Kline-Simon, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stable isotope research pool inventory

Description: This report contains a listing of electromagnetically separated stable isotopes which are available for distribution within the United States for non-destructive research use from the Oak Ridge National Laboratory on a loan basis. This inventory includes all samples of stable isotopes in the Materials Research Collection and does not designate whether a sample is out on loan or in reprocessing. For some of the high abundance naturally occurring isotopes, larger amounts can be made available; fo… more
Date: January 1, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of LaNi{sub 4.25}Al{sub 0.75} (LANA.75) tritide after five years of tritium exposure

Description: Tritium aging studies have shown that LaNi{sub 4.25}Al{sub 0.75} (LANA .75) tritide storage material undergoes significant degradation with tritium aging. After 5.4 years of dormant storage at full stoichiometry, which is considered a worst-case condition for this material, the performance is still acceptable for SRS tritium processing applications. The isotherms change, decreasing the desorption pressures, increasing the isotherm plateau slopes, and decreasing the total storage capacity. Event… more
Date: September 1, 1993
Creator: Wermer, J. R.; Holder, J. S. & Mosley, W. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Statistical theory of electronic energy relaxation

Description: A 'statistical method' is developed for treating electronic and electronic-translational energy transfer in systems of atoms having multiple electronic states. This method is based on the assumption that the states produced in a collision are distributed according to the equilibrium distribution for the energy available to the collision partners. The approach is readily incorporated into Monte Carlo gas dynamic calculations. Results of such calculations are reported for several cases of relaxat… more
Date: January 1, 1986
Creator: Anderson, J. B.; Foch, J. D.; Shaw, M. J.; Stern, R. C. & Wu, B. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Monitoring PVD metal vapors using laser absorption spectroscopy

Description: Laser absorption spectroscopy (LAS) has been used by the Atomic Vapor Laser Isotope Separation (AVLIS) program for over 10 years to monitor the co-vaporization of uranium and iron in its separators. During that time, LAS has proven to be an accurate and reliable method to monitor both the density and composition of the vapor. It has distinct advantages over other rate monitors, in that it is completely non-obtrusive to the vaporization process and its accuracy is unaffected by the duration of t… more
Date: April 1, 1994
Creator: Braun, D. G.; Anklam, T. M.; Berzins, L. V. & Hagans, K. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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RTAP evaluation process for the U-AVLIS supervisory system

Description: The information contained within this document describe a set of proposed designs for evaluating the RTAP supervisory control and data acquisition software. The basis of this evaluation is two-fold: (1) to investigate the feasibility of integrating the components of the U-AVLIS supervisory system into RTAP and (2) to investigate the distributed capabilities of the RTAP system. The evaluation process will be performed in an off-line development area (not in B490) and will concentrate its effort … more
Date: February 16, 1994
Creator: Elko, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fifth annual conference of the International Nuclear Target Development Society

Description: A separate abstract was prepared for sixteen papers presented at the conference. Abstracts of three papers presented orally at the conference are included in the proceedings. Three papers have been abstracted previously for the data base. For abstracts of these see CONF-761055 in the Report Number Index. (RCK)
Date: June 1, 1977
Creator: Gursky, J.C. & Povelites, J.G. (comps.)
Item Type: Refine your search to only Article
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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