UNT Libraries Government Documents Department - 14 Matching Results

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Design and fabrication of the superconducting-magnet system for the Mirror Fusion Test Facility (MFTF-B)

Description: The superconducting magnet system for the Mirror Fusion Test Facility (MFTF-B) consists of 24 magnets; i.e. two pairs of C-shaped Yin-Yang coils, four C-shaped transition coils, four solenoidal axicell coils, and a 12-solenoid central cell. General Dynamics Convair Division has designed all the coils and is responsible for fabricating 20 coils. The two Yin-Yang pairs (four coils) are being fabricated by the Lawrence Livermore National Laboratory. Since MFTF-B is not a magnet development program… more
Date: September 3, 1982
Creator: Tatro, R. E.; Wohlwend, J. W. & Kozman, T. A.
Item Type: Refine your search to only Report
open access

Design guidance for fracture-critical components at Lawrence Livermore National Laboratory

Description: Fracture is an important design consideration for components whose sudden and catastrophic failure could result in a serious accident. Elements of fracture control and fracture mechanics design methods are reviewed. Design requirements, which are based on the consequences of fracture of a given component, are subsequently developed. Five categories of consequences are defined. Category I is the lowest risk, and relatively lenient design requirements are employed. Category V has the highest pote… more
Date: March 3, 1982
Creator: Streit, R. D.
Item Type: Refine your search to only Report
open access

Development of advanced technologies for photochemical tritium recovery. Bi-quarterly progress report, July 1, 1981-December 31, 1981. [From heavy water]

Description: A process to photochemically remove tritium from heavy water has been described previously. Order-of-magnitude cost estimates for this process have been made, based on the specifications, assumptions, and parameters. The estimated costs of each unit and of the complete system are given. The total capital cost (excluding laser cost) of $650,000 corresponds to a cost of $0.08/Ci tritium removed, for plant amortization over one year. The electrical load is about 154 kW; this is equal to a cost of … more
Date: February 3, 1982
Creator: Aldridge, F. T.; Herman, I. P.; Magnotta, F. & Marling, J. B.
Item Type: Refine your search to only Report
open access

Development of Bromine-77 from the LAMPF facility

Description: The objective of the work is to conduct the necessary studies required to evaluate the efficacy, potential benefit and role of bromine-77 labelled steroids in the detection and evaluation of treatment for hormone-dependent tumors. The synthetic goals of 1982-3 included the synthesis estradiol derivatives which were radiohalogenated in the A- or C-ring with bromine-77 or bromine-82. Estradiol derivatives in which the radiohalogen was incorporated into the C-ring were prepared and purified with h… more
Date: December 3, 1982
Creator: Mettler, F.A. & Hylarides, M.
Item Type: Refine your search to only Report
open access

Explosive double salts and preparation. [Patent application]

Description: A new composition of matter has been discovered which is an explosive addition compound of ammonium nitrate (AN) and diethylenetriamine trinitrate (DETN) in a 50:50 molar ratio. the compound is stable over extended periods of time only at temperatures higher than 46/sup 0/C, decomposing to a fine-grained eutectic mixture (which is also believed to be new) of AN and DETN at temperatures lower than 46/sup 0/C. The compound of the invention has an x-ray density of 1.61 g/cm/sup 3/, explodes to for… more
Date: February 3, 1982
Creator: Cady, H. H. & Lee, K. Y.
Item Type: Refine your search to only Patent
open access

Gaussian-profile beams

Description: The growth rate of the hose instability is derived for a beam with Gaussian radial profile, using the spread mass model of phase mix damping. It is found that the maximum growth rate of a convecting wave packet is 49% larger than that derived for a beam with the Bennett profile, and the inverse group velocity (dz/d tau) is also increased by about this amount. A general discussion of spread mass models is presented along with an explanation of the regurgitation phenomena seen in their numerical … more
Date: November 3, 1982
Creator: Lee, Edward P.
Item Type: Refine your search to only Report
open access

New prodrugs based on phospholipid-nucleoside conjugates

Description: A method is described for the preparation of defined, isomerically pure phospholipid-nucleoside conjugates as a prodrug in which the drug (araC) is attached to the phospholipid by a monophosphate linkage. Key intermediates in the process involve selective blocking and deblocking of the nucleoside derivative. These particular monophosphate-linked derivatives represent a new class of prodrug, which are useful by themselves or in combination with diphosphate linked derivatives. Several new composi… more
Date: February 3, 1982
Creator: MacCoss, M.
Item Type: Refine your search to only Patent
open access

Nonlinear aspects of the Rayleigh-Taylor instability in laser ablation

Description: We report on our investigation of the Rayleigh-Taylor (R-T) and Kelvin-Helmholtz (K-H) instabilities in laser ablatively accelerated targets for single mode perturbations for a series of wavelengths in the parameter regime 1/2 less than or equal to lambda/..delta..R less than or equal to 10, where lambda is the wavelength of the perturbation and ..delta..R is the cold foil thickness. We find linear growth rates well below classical values (by a factor on the order of 3 to 4). We also find a cut… more
Date: September 3, 1982
Creator: Emery, M. H.; Gardner, J. H. & Boris, J. P.
Item Type: Refine your search to only Report
open access

Process for recovering rhenium from an alloy thereof

Description: Rhenium is recovered from an alloy containing that metal and either one or both of the metals molybdenum and tungsten by the following steps: (1) heating the alloy in the presence of O/sub 2/ to remove the Re from the alloy as gaseous Re/sub 2/O/sub 7/; (2) condensing the gaseous Re/sub 2/O/sub 7/; (3) dissolving the obtained solid Re/sub 2/O/sub 7/ in H/sub 2/O; (4) treating the solution of Re/sub 2/O/sub 7/ and H/sub 2/O with KCl to form KReO/sub 4/; and (5) heating the KReO/sub 4/ in the pre… more
Date: February 3, 1982
Creator: Heshmatpour, Bahman & McDonald, Robert E.
Item Type: Refine your search to only Patent
open access

Results from exploratory drill hole UE2ce, Northwest Yucca Flat, Nevada Test Site, near the NASH Event

Description: Exploratory drill hole UE2ce was drilled in January 1977 to determine geologic and geophysical characteristics of this site. This report presents geophysical logs, lithology, geologic structure, water table measurements, and physical properties for this drill hole. The data are then extrapolated to the NASH site, an event in U2ce, 55.6 m due north of UE2ce.
Date: March 3, 1982
Creator: Pawloski, G.A.
Item Type: Refine your search to only Report
open access

Silicon tetrafluoride generation. [Patent application; from hexafluorosilicic acid]

Description: This invention is directed to a process of generating silicon tetrafluoride (SiF/sub 4/) from aqueous solutions of hexafluorosilicic acid (H/sub 2/SiF/sub 6/), comprising reacting an aqueous solution of H/sub 2/SiF/sub 6/ with a concentrated aqueous salt solution to produce a precipitate, separating and drying the precipitate, and heating the precipitate in an inert atmosphere to decompose the precipitate producing SiF/sub 4/.
Date: January 3, 1982
Creator: Hansen, K. C. & Yaws, C. L.
Item Type: Refine your search to only Patent
open access

Technology Development Facility (TDF)

Description: We have been studying small, driven, magnetic-mirror-based fusion reactors for the Technology Development Facility (TDF), that will test fusion reactor materials, components, and subsystems. Magnetic mirror systems are particularly interesting for this application because of their inherent steady-state operation, potentially high neutron wall loading, and relatively small size. Our design is a tandem mirror device first described by Fowler and Logan, based on the physics of the TMX experiments … more
Date: September 3, 1982
Creator: Doggett, J. N.
Item Type: Refine your search to only Article
open access

Technology transfer: Ion exchange resins for Technetium-99 removal from X-705 raffinates

Description: An ion exchange process will be used at Portsmouth to remove Technetium-99 from uranium recovery waste solutions (raffinates). Subsequent treatment will then remove nitrates from the raffinates by a biodenitrification process prior to discharge to receiving streams to meet environmental standards for liquid wastes. Ion exchange process parameters affecting safe and efficient raffinate treatment have been examined in the laboratory, and results are described in this report. 4 refs., 3 figs., 6 t… more
Date: December 3, 1982
Creator: Deacon, L.E. & Greiner, M.J.
Item Type: Refine your search to only Report
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