UNT Libraries Government Documents Department - 28 Matching Results

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Study of efficient high-power, high-energy neutral beams for the Reference Mirror Reactor

Description: An injector design for the Reference Mirror Reactor is described which uses negative ions created by charge-exchange in a cesium vapor cell and neutralized by photodetachment. Some of the innovations discussed include a continuously operating cathode for an LBL/LLL ion source, a negative ion beam line with cooled grids, a high voltage accelerator configuration with insulators shielded from the neutron and gamma flux, and cryopanels which continuously cycle between pumping and outgassing modes.
Date: November 11, 1976
Creator: Fink, J. H.; Barr, W. L. & Hamilton, G. W.
Item Type: Refine your search to only Report
open access

100-keV Faraday cup design: materials and structure

Description: A Faraday cup design for a 1 mA.cm/sup -2/ 100-keV, light-ion-beam measurement in background plasma is proposed. Features of this shielded, three-grid structure with deep target are described, and a mechanical draft is included. In the appendix, we reference and survey results of experiments reporting the number and energy range of secondary electrons and back-scattered ions originating on various metal surfaces bombarded with approximately 100-keV hydrogen and deuterium ions. Choice of target … more
Date: October 11, 1976
Creator: Jones, K.
Item Type: Refine your search to only Report
open access

Finite amplitude thermal convection in porous media with uniform heat source

Description: An unbounded horizontal fluid layer in a porous medium with an internal heat source and uniformly heated from below was studied. The layer is in the gravitational field. Linear theory predicts that the disturbances of infinitesimal amplitude will start to grow when the Rayleigh number exceeds its critical value. These disturbances do not grow without limit; but by advecting heat and momentum, the distrurbances alter their forms to achieve a finite amplitude. Just like infinitesimal amplitude di… more
Date: August 11, 1976
Creator: Hwang, I. T.
Item Type: Refine your search to only Article
open access

Preliminary design review document application of multi-foil insulation to the Brayton Isotope Power System and conceptual design of multi-foil insulation for the flight system (phase I)

Description: The status of the effort to apply MULTI-FOIL thermal insulation in an effective manner to the Ground Development System (GDS) is reviewed. Heat loss measurements made on cylindrical and elbow heat sources using ''Tape'' and ''Conventional'' MULTI-FOIL indicate that the thermal losses are comparable on a per layer basis. However, use of the tape incurs a weight penalty, per layer, of about 20 percent. The effective thermal emissivity of the nickel layer/zirconia powder MULTI-FOIL is approximatel… more
Date: June 11, 1976
Item Type: Refine your search to only Report
open access

Safety analysis report for packaging: neutron shipping cask, model 0. 5T

Description: The Safety Analysis Report for Packaging demonstrates that the neutron shipping cask can safely transport, in solid or powder form, all isotopes of uranium, plutonium, americium, curium, berkelium, californium, einsteinium, and fermium. The shipping cask and its contents are described. It also evaluates transport conditions, structural parameters (e.g., load resistance, pressure and impact effects, lifting and tiedown devices), and shielding. Finally, it discusses compliance with Chapter 0529 o… more
Date: June 11, 1976
Creator: Peterson, R. T.
Item Type: Refine your search to only Report
open access

SOCKITTOME image processing

Description: ''SOCKITTOME'' was the name given a collection of routines which processed data of the form y = f(x). This collection consisted of a ''public'' controller (SOCKITTOME) and controllees stored in a political library file to be called up (and disposed of) by the controller. Later, it was decided to put routines capable of processing z = f(x,y) image data under the control of SOCKITTOME, and to rewrite them so that they could be as general and useful as possi… more
Date: May 11, 1976
Creator: Finn, H. F. & Hummell, M.
Item Type: Refine your search to only Report
open access

University of Utah Direct Contact Geothermal Power Project report. A computer program for determining the thermodynamic properties of water

Description: This program was written to be used as a subroutine. The program determines the thermodynamic properties of water given any of the following pairs of knowns to define a thermodynamic state: pressure and entropy, pressure and enthalpy, pressure and quality, temperature and pressure, or temperature and quality. These five pairs of knowns allow the user to evaluate any thermodynamic cycle using water, as a working fluid. The basic equations came from Keenan, Keyes, Hill and Moore, Steam Tables, Jo… more
Date: June 11, 1976
Creator: Riemer, D. H.; Jacobs, H. R. & Boehm, R. F.
Item Type: Refine your search to only Report
open access

Charged particle detector system for the MPS and ISABELLE spectrometers

Description: A detector system combining the good time resolution and low dead time to PWC's and the good space resolution of drift chambers is proposed to upgrade the MPS and for future use in Isabelle spectrometers. Central to this detector is the development of two integrated electronic circuit systems. The detectors are described with special emphasis on the electronic systems. The detector system proposed will be capable of handling particle flux rates typical of conventional PWC's yet providing a spac… more
Date: October 11, 1976
Creator: Platner, E. D.
Item Type: Refine your search to only Report
open access

Preliminary evaluation of the mini-BRU turbine plenum in superalloy and the currently available heat exchanger for the BIPS workhorse system

Description: The Mini-BRU turbine plenum and nozzle assembly in superalloy and the currently available L.A. heat exchanger have been examined for the BIPS workhorse system. Waspaloy can be used as the material of construction for the plenum and nozzle assembly. The L.A. heat exchanger can be utilized in the workhorse system with recommended modification.
Date: May 11, 1976
Creator: Yang, S. J.
Item Type: Refine your search to only Report
open access

Reevaluation of the gamma-ray energies and absolute branching intensities of /sup 237/U, /sup 238/ /sup 239/ /sup 240/ /sup 241/Pu, and /sup 241/Am

Description: Promising new techniques for making quantitative measurements of plutonium require highly precise values of the gamma-ray energies and intensities for the isotopes involved. Using high isotopic purity sources and state of the art Ge(Li) detectors, we have reevaluated the energies and absolute emission probabilities of the gamma rays following the decay of /sup 237/U, /sup 238/, /sup 239/, /sup 240/, /sup 241/Pu, and /sup 241/Am.
Date: October 11, 1976
Creator: Gunnink, R.; Evans, J. E. & Prindle, A. L.
Item Type: Refine your search to only Report
open access

Programs NAES and SS: user-oriented programs for solving nonlinear algebraic equations and ordinary differential equations. [In FORTRAN IV]

Description: Program NAES (Nonlinear Algebraic Equation Solver) is a Fortran IV program used to solve the vector equation f(x) = 0 for x. Two areas where Program NAES has proved to be useful are the solution for initial conditions and/or set points of complex systems of differential equations and the identification of system parameters from steady-state equations and steady-state data. Program SS (State Space) is a Fortran IV program used to solve a system of first-order, ordinary differential equations wit… more
Date: August 11, 1976
Creator: McCue, H. K.
Item Type: Refine your search to only Report
open access

Heating uranium alloy billets. [0. 75% Ti, 6% Nb, or 7. 5% Nb--2. 5% Zr]

Description: Data were obtained for the surface heat transfer coefficient of uranium and the alloys of uranium-0.75 wt percent titanium, uranium-6 wt percent niobium, and uranium-7.5 wt percent niobium-2.5 wt percent zirconium. Samples were heated to 850/sup 0/C in both a molten salt bath and an argon-purged air furnace, then the samples were cooled in air. Surface heat transfer coefficients were calculated from the experimental data for both heating and cooling of the metals. 4 fig, 4 tables.
Date: June 11, 1976
Creator: Bieber, C. R.
Item Type: Refine your search to only Report
open access

Correlation in conditional distributions: some suggestions for measuring the relationships between two sets of pollutants when the effect of weather has been removed

Description: Some multivariate statistical tests are reviewed that could be used to measure relationships between two sets of measurements on air pollutants when both sets are affected by the weather. The tests are easily carried out using standard statistical packages, and the results may be used to indicate whether it is worthwhile to proceed or to develop more delicate procedures.
Date: October 11, 1976
Creator: Juritz, J.
Item Type: Refine your search to only Report
open access

Advanced waste forms research and development. Annual report

Description: Thermogravimetric analysis on cesium aluminosilicates was performed. Pollucite, CsAlSi/sub 2/O/sub 6/, appears to have more than adequate thermal stability for Cs fixation in supercalcine. The possibility of leaving Ru as RuO/sub 2/ during supercalcine crystallization is being assessed. The apatite solid solution (A/sub ss/) phases used in supercalcine phase formation models have been easily prepared as pure phases. Use of Ca instead of Sr as an alkaline earth additive yields a more stable A/su… more
Date: June 11, 1976
Creator: McCarthy, G. J.
Item Type: Refine your search to only Report
open access

Design criteria burial containers for non-transuranic solid radioactive waste

Description: The criteria, replace HW-83959 and apply to containers constructed specifically for the containment of beta-gamma radioactively contaminated waste removed from an area controlled by radiation work procedures, transported across an uncontrolled area where there is risk of a radiation release to the environs, and buried in an approved radioactive waste burial ground. (DLC)
Date: August 11, 1976
Creator: Hammond, J. E.
Item Type: Refine your search to only Report
open access

Why partition nuclear waste

Description: A cursory review of literature dealing with various separatory processes involved in the handling of high-level liquid nuclear waste discloses that, for the most part, discussion centers on separation procedures and methodology for handling the resulting fractions, particularly the actinide wastes. There appears to be relatively little discussion on the incentives or motivations for performing these separations in the first place. Discussion is often limited to the assumption that we must separ… more
Date: June 11, 1976
Creator: Cohen, J. J.
Item Type: Refine your search to only Article
open access

Tight upper and lower bounds for correlation of bivariate distribution arising in air pollution modeling. Technical report No. 5. Study on statistics and environmental factors in health

Description: In working with statistical health and environmental data assumed to be lognormal, the data must be transformed back to normal data before correlations are taken. Recommendations for other measures of correlation are given. (PCS)
Date: November 11, 1976
Creator: de Veaux, D.
Item Type: Refine your search to only Report
open access

In pursuit of fusion; ARGUS laser system at Livermore

Description: The ARGUS laser facility has been developed to achieve significant laser fusion milestones; high density (greater than 10 g/cm/sup 3/) implosions, high temperature (greater than 10 KeV) implosions, and high yield from advanced target designs. The ARGUS laser, central to this facility is a twin-beam, 20 cm output aperture, Nd:glass solid state laser capable of delivering greater than 3 TW of power to laser fusion targets. At the present time, ARGUS is fully operational, and has produced up to 10… more
Date: October 11, 1976
Creator: Simmons, W. W.
Item Type: Refine your search to only Article
open access

Survey of applied and computational mathematics at LLL

Description: A summary of current activities in applied and computational mathematics at the Lawrence Livermore Laboratory is given. It is evident from the survey that there is a very broad spectrum of research and development in this area of mathematics. However, only a small percentage of the total effort is directly involved with fundamental research. The Laboratory is advised to adopt a formal policy to establish and support a research program in applied and computational mathematics. Coordination of re… more
Date: June 11, 1976
Creator: Chang, J.; Ekstrom, M. & Fritsch, F.
Item Type: Refine your search to only Report
open access

Variable orifice for differential pumping in a vacuum system

Description: In differential pumping, the pumping speed has in the past been controlled by the size of the orifice between the vacuum chamber and the diffusion pump. This fixed orifice is usually in the valve gate of a high-vacuum valve (or in a baffle plate). To change the pumping speed, then, the valve must be removed and another valve with an orifice of a different size must be inserted. This process is time consuming and risks contamination of the system, which would require another pumpdown and bakeout… more
Date: June 11, 1976
Creator: Beeman, R. & Brajkovich, S.
Item Type: Refine your search to only Report
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