UNT Libraries Government Documents Department - 31 Matching Results

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open access

Argus glass laser target alignment system

Description: Proper laser infrared irradiation of ball targets 10 to 100 ..mu..m in diameter requires micrometre-step positioning of the system's optical elements. A central control console has been designed that gives the operator nearly complete control of this complex operation. Twin alignment lasers can be operated from the console. Devices can be inserted in the beam lines, mirrors moved, and the target ball aligned, all with fine precision. The focus position can be viewed by closed-circuit TV monitor… more
Date: April 13, 1977
Creator: Stewart, T. C.
Item Type: Refine your search to only Report
open access

Design data and safety features of commercial nuclear power plants including cumulative index for Volumes I--VI

Description: Design data, safety features, and site characteristics are summarized for 12 nuclear power units in 6 power stations in the United States. Six pages of data are presented for each station, consisting of thermal-hydraulic and nuclear factors, containment features, emergency-core-cooling systems, site features, circulating water system data, and miscellaneous factors. In addition, an aerial perspective is presented for each plant. This volume covers plants with docket numbers 50-553 through 50-56… more
Date: May 13, 1977
Creator: Heddleson, F. A.
Item Type: Refine your search to only Report
open access

DT fusion neutron irradiation of LLL ''tritium-tricked'' niobium, BNL--LASL superconductor wires, BPNL wire-foil packages

Description: The DT fusion neutron irradiation of eight LLL ''tritium-tricked'' niobium foils, eleven BNL-LASL superconductor wires, and two wire-foil packets from BPNL is described The sample position, beam-on time, and neutron dose record are given. The maximum neutron fluence on any sample was 9.66 x 10/sup 16/ neutrons/cm/sup 2/.
Date: January 13, 1977
Creator: MacLean, S. C.
Item Type: Refine your search to only Report
open access

Effects of beat-wave electron trapping on stimulated Raman and Thomson scattering

Description: The influence of electron trapping on a large-amplitude plasma oscillation driven by the nonlinear interaction of two electromagnetic waves (stimulated Raman scattering) is studied analytically and by means of numerical simulation. When the plasma oscillation is resonantly excited to sufficiently large amplitude and electron trapping occurs, there ensues considerable modification of the electron velocity distribution function. The stimulated scattering ceases to be a resonant three-wave process… more
Date: September 13, 1977
Creator: Cohen, B. I. & Kaufman, A. N.
Item Type: Refine your search to only Report
open access

Evaluation of anion exchange resins for pre-analysis separation of actinides

Description: Anion exchange is the technique usually employed to separate plutonium and neptunium from actinides and other sample constituents prior to radiochemical determinations of the actinides. For plutonium-neptunium separations, neptunium(IV) is sorbed on an anion exchanger and the plutonium(III) allowed to pass with the effluent and wash streams from a 5M HNO/sub 3/-0.66M Al(NO/sub 3/)/sub 3/-0.2M Fe(SO/sub 3/NH/sub 2/)/sub 2/ feed solution. Plutonium is separated from plutonium-uranium solutions by… more
Date: July 13, 1977
Creator: Navratil, J. D.
Item Type: Refine your search to only Article
open access

External radiation survey and dose predictions for Rongelap, Utirik, Rongerik, Ailuk, and Wotje Atolls

Description: External radiation measurements were made at several atolls in the northern Marshall Islands, which are known or suspected to have been the recipients of tropospheric fallout during the Pacific Testing Programs. Sufficient data were available to ascertain realistic dose predictions for the inhabitants of Rongelap and Utirik Atolls where the 30 year integral doses from external sources exclusive of background radiation were 0.65 and 0.06 rem respectively. These estimates are based on realistic l… more
Date: December 13, 1977
Creator: Greenhouse, N.A. & Miltenberger, R.P.
Item Type: Refine your search to only Report
open access

Field electrochemical measurements of corrosion characteristics of materials in hypersaline geothermal brine

Description: A flow cell (with appropriate accessories) was developed for use in short-term testing of the corrosion behavior of materials in approximately 100{sup 0}C, hypersaline geothermal brine. The apparatus was designed to accommodate commercial (Petrolite) corrosion measurement equipment and conducted experiments on-line at the Lawrence Livermore Laboratory Test Station in the Salton Sea Geothermal Field. The apparatus also permitted direct readings of corrosion potentials, solution redox potential (… more
Date: December 13, 1977
Creator: Harrar, J.E.; McCright, R.D. & Goldberg, A.
Item Type: Refine your search to only Report
open access

Imperial Valley Environmental Project: quarterly data report

Description: This is a catalog of all samples which have been collected and the presently available results of chemical and other analyses. Types covered include: air quality, water quality, ecosystem quality, subsidence and seismicity, remotely sensed data, socioeconomic effects, and measurements of radioactivity. (MHR)
Date: April 13, 1977
Creator: Nyholm, R. A. & Anspaugh, L. R. (comps.)
Item Type: Refine your search to only Report
open access

Instruction manual for a microwave ammonia monitor

Description: The microwave ammonia monitor is a self contained (the vacuum pump is external) microwave rotational spectrometer that selectively detects and monitors ammonia vapor in air. A solid-state oscillator is used as the microwave source and a microwave cavity made from waveguide provides a chamber for the sample analysis. The air sample is continuously flowed through the waveguide cavity so that changes in the trace concentration of ammonia in air can be determined. The principle of operation of the … more
Date: June 13, 1977
Creator: Hrubesh, Lawrence W.
Item Type: Refine your search to only Report
open access

Investigation of moisture in titanium metal powder by pulsed NMR

Description: A sample of titanium metal powder QC 1779 was subjected to five different treatments of dyring and moisture exposure to estimate the effectiveness of normal drying and handling procedures used in the pyrotechnics processing. The treatments were drying in air, drying in two different vacuum furnaces, exposure to normal humidity, and exposure to 100 percent humidity. Statistical evaluation of the NMR results indicates that there is a significant difference between the moisture content of each tre… more
Date: May 13, 1977
Creator: Attalla, A.; Bowman, R. C. Jr.; Craft, B. D.; Love, C. M. & Yauger, R. L.
Item Type: Refine your search to only Report
open access

Investment risk evaluation techniques: use in energy-intensive industries and implications for ERDA's Industrial Conservation Program

Description: The trade-off between risk and rate-of-return in investment evaluations is crucial in assessing the commercial potential of future energy-conservation technologies. The focus of the Industrial Conservation Program at ERDA is to reduce the perceived risks of a given technology to the extent that the private sector will adopt the technology within the normal course of its business operations. These perceived risks may emanate from technical, institutional, or commercial uncertainties, or in many … more
Date: July 13, 1977
Item Type: Refine your search to only Report
open access

Materials evaluation for geothermal applications: turbine materials

Description: A number of candidate turbine materials are being evaluated for their resistance to erosion, corrosion, and stress corrosion cracking (SCC) in geothermal brines. These materials include Fe-, Ni-, Co and Ti-base alloys, coatings and ceramics. Tapered wearblades, simulating the leading edge of a turbine blade, are exposed to the direct impact of a two-phase nozzle exhaust. Bent beam SCC specimens, which are constrained in fixtures attached to the wearblade holders, are also exposed to this exhaus… more
Date: April 13, 1977
Creator: Goldberg, A. & Garrison, R.E.
Item Type: Refine your search to only Article
open access

Measurement of the neutron-induced fission cross section of /sup 232/Th relative to /sup 235/U from 0. 7 to 30 MeV. [0. 7 to 30 MeV]

Description: Continuing fission cross section ratio studies at Lawrence Livermore Laboratory, one has measured the /sup 232/Th//sup 235/U fission cross-section ratio from 0.7 to 30 MeV. Using the threshold method, one obtained a value of 0.1081 +- 0.0022 for the average cross-section ratio in the interval from 1.75 to 4.00 MeV.
Date: April 13, 1977
Creator: Behrens, J. W.; Magana, J. W. & Browne, J. C.
Item Type: Refine your search to only Report
open access

Monthly Highlights for Office of Nuclear Regulatory Research Programs at Oak Ridge National Laboratory: August 1977

Description: Technical highlights are presented for the following safety-related studies: heavy section steel technology, fission product beta and gamma energy release, fission product release from LWR fuel, fission product transport tests, multirod burst tests, Nuclear Safety Information Center, PWR blowdown heat transfer-separate effects, zircaloy fuel cladding collapse studies, zirconium metal-water oxidation kinetics, aerosol release and transport from LMFBR fuel, HTGR safety analysis and research, desi… more
Date: September 13, 1977
Creator: Fee, Gordon G.
Item Type: Refine your search to only Report
open access

Multiplicity and charged particle emission in relativistic heavy ion collisions. [Cross sections, statistical thermodynamic models]

Description: Single-particle inclusive cross sections of precisely identified fragments are studied together with associated multiplicities of fast charged particles. Neon and argon projectiles are made to bombard uranium, calcium, and aluminium. It is found that all the observed fragment spectra are structureless and more or less exponentially decaying throughout the range of studied fragment masses. A catalogue of experimentally found qualitative features is given and the applicability of simple statistic… more
Date: June 13, 1977
Creator: Gutbrod, H. H.; Gosset, J.; Meyer, W. G.; Poskanzer, A. M.; Sandoval, A.; Stock, R. et al.
Item Type: Refine your search to only Article
open access

Negative ion yields from protons and hydrogen atoms backscattered from cesium-coated surfaces

Description: The formation of negative ions by hydrogen collisions on cesium-coated surfaces is discussed in the limiting cases where the resident cesium is either in the purely ionic state or in the purely atomic state. The survival fraction for negative ions moving away from a metal surface is calculated using a method employing complex eigenvalues. The fraction of surviving ions is found to be larger than calculated by previous workers. The secondary emission coefficient for negative ion production by in… more
Date: May 13, 1977
Creator: Hiskes, J. R. & Karo, A.
Item Type: Refine your search to only Report
open access

Operators guide: Atmospheric Release Advisory Capability (ARAC) site facility

Description: In this report capabilities and services are described for the Atmospheric Release Advisory Capability (ARAC). The ARAC site system and its operating procedures and interactions with the ARAC central facility located at LLL is outlined. ARAC is designed to help officials at designated ERDA sites and other locations in estimating the effects of atmospheric releases of radionuclides or other hazardous materials by issuing real-time advisories to guide them in their planning.
Date: July 13, 1977
Creator: Lawver, B. S.
Item Type: Refine your search to only Report
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