195 Matching Results

Search Results

Results: 1 - 24 next
open access

Evaluation of Possible Radioactivity Transport in Groundwater

Description: "The possibility of radioactivity transport in the groundwater system as the result of a hypothetical maximum credible gas leak was evaluated." "The present study confirms the low radiation levels in the groundwater predicted in the initial calculations." (from Summary)
Date: May 11, 1973
Creator: Knutson, Carroll Field
Partner: UNT Libraries Government Documents Department
open access

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.
Partner: UNT Libraries Government Documents Department
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.
Partner: UNT Libraries Government Documents Department
open access

Final report for fuel acquisition and design of a fast subcritical blanket facility

Description: A summary is presented of work leading to the design of a subcritical facility for the study of fast reactor blankets. Included are activities related to fuel acquisition, design of the facility, and experiment planning.
Date: March 11, 1976
Creator: Clikeman, F. M. & Ott, K. O.
Partner: UNT Libraries Government Documents Department
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
Partner: UNT Libraries Government Documents Department
open access

Interaction cross section of C/sub s//sup +/ ions

Description: Some estimates of the shape of C/sub s/ ion and C/sub s/ atom interaction potentials suggest that the C/sup +//sub s/ + C/sup +//sub s/ charge transfer cross section may be less than 10/sup -15/ cm/sup 2/.
Date: August 11, 1976
Creator: Hiskes, J. R.
Partner: UNT Libraries Government Documents Department
open access

Advanced waste forms research and development. Annual report

Description: Research and development activities on advanced (alternatives to glass) nuclear waste forms are reported. The emphasis is on two phases of the work to give essential background information on supercalcine development. The first is a report of the data obtained in the study of cesium aluminosilicate for Cs and Ru fixation. Research on the compatibility of the phases formed in the complex oxide system made up of waste and additive cations is reported. The phase stability in a number of proposed f… more
Date: June 11, 1975
Creator: McCarthy, G. J.
Partner: UNT Libraries Government Documents Department
open access

Environmental technology applications: fact file on toxic contaminants in industrial waste process streams

Description: This report is a compendium of facts related to chemical materials present in industrial waste process streams which have already been declared or are being evaluated as hazardous under the Toxic Substances Control Act. Since some 400 chemicals are presently covered by consensus standards, the substances reviewed are only those considered to be a major threat to public health and welfare by Federal and State regulatory agencies. For each hazardous material cited, the facts relate, where possibl… more
Date: May 11, 1977
Creator: Newkirk, H. W.
Partner: UNT Libraries Government Documents Department
open access

Status report to ERDA Nuclear Data Committee

Description: This status report to the Nuclear Data Committee from LLL summarizes work in the areas of standards, nuclear data applications, nuclear data for safeguards, and nuclear data compilation. A few of these papers, though brief, do contain data. 9 figures, 2 tables. (RWR)
Date: February 11, 1977
Creator: Anderson, J. D.; Browne, J. C. & Gardner, D. G.
Partner: UNT Libraries Government Documents Department
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.
Partner: UNT Libraries Government Documents Department
open access

Large area silicon sheet task low-cost silicon solar array project. Sixth quarterly progress report, 4 April 1977--1 July 1977

Description: Silicon ribbons were grown in the presence of some air back-streaming and were consistently polycrystalline with little evidence of oriented growth from the seed. The problem of back-diffusion of air from the exit port has been eliminated, and clean growth conditions, as determined by silicon wafer film test, have been obtained in the redesigned seeded growth furnace. This furnace developed a water leak in the cooling nozzle, so it has not as yet been used to grow silicon. A new, vertical seede… more
Date: July 11, 1977
Creator: Garfinkel, M. & Hall, R. N.
Partner: UNT Libraries Government Documents Department
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.
Partner: UNT Libraries Government Documents Department
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.
Partner: UNT Libraries Government Documents Department
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.
Partner: UNT Libraries Government Documents Department
open access

Reversed field decay times

Description: A two-fluid equilibrium plasma model with electron-ion drag terms taken from the Spitzer coefficients is used in the analysis. An equilibrium cold electron background is assumed to exist which balances the electrical charge of the rotating ion ring. The ions can be assumed to have a directed velocity which is on the order of their mean thermal velocity.
Date: January 11, 1977
Creator: Morse, E. C.
Partner: UNT Libraries Government Documents Department
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.
Partner: UNT Libraries Government Documents Department
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.
Partner: UNT Libraries Government Documents Department
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.
Partner: UNT Libraries Government Documents Department
open access

Charge transport problem

Description: In a recent report (UCID 17346, ''Relativistic Particle Beam in a Semi-Infinite Axially Symmetric conducting channel extending from a perfectly conducting plane,'' Dec. 13, 1976) Cooper and Neil demonstrate that the net charge transported by a beam pulse injected into a channel of finite conductivity equals the charge of the beam itself. The channel is taken to be infinite in the positive z direction, has finite radius and is terminated by a conducting ground plane at z =0. This result is not a… more
Date: January 11, 1977
Creator: Lee, E. P.
Partner: UNT Libraries Government Documents Department
open access

Some highlights of theoretical and computational plasma physics

Description: The objectives of the selection are to provide some insight into the basic models, to give some impression of the difficult nature of the equations, to show some of the present understanding of the nonlinear consequences of the equations, and to illustrate the remarks with computational studies. The physical situations envisaged are always closely related to the Tokamaks or Mirror Machines described in the first pair of lectures. The aim of this plasma theory is to describe equilibria, stabilit… more
Date: August 11, 1977
Creator: McNamara, Brandon
Partner: UNT Libraries Government Documents Department
open access

Some highlights of theoretical and computational plasma physics

Description: The objectives of this report are to provide some insight into the basic models, to give some impression of the difficult nature of the equations, to show some of the present understanding of the nonlinear consequences of the equations, and to illustrate the remarks with computational studies. The aim of this plasma theory is to describe equilibria, stability of the equilibria, and the transport of energy and particles out of the plasma. (MOW)
Date: August 11, 1977
Creator: McNamara, B.
Partner: UNT Libraries Government Documents Department
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.
Partner: UNT Libraries Government Documents Department
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.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen