UNT Libraries Government Documents Department - 183 Matching Results

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1.06 μm 150 psec laser damage study of diamond turned, diamond turned/ polished and polished metal mirrors

Description: Using a well characterized 1.06 μm 150 ps glass laser pulse the damage characteristics for diamond turned, diamond turned/ polished, and polished copper and silver mirrors less than 5 cm diameter were studied. Although most samples were tested with a normal angle of incidence, some were tested at 45$sup 0$ with different linear polarization showing an increase in damage threshold for S polarization. Different damage mechanisms observed will be discussed. Laser damage is related to residual surf… more
Date: July 24, 1975
Creator: Saito, T. T.; Milam, D.; Baker, P. & Murphy, G.
Item Type: Refine your search to only Article
open access

Accurate determination of impurity concentrations in plutonium metals by statistical evaluation of analytical data

Description: Analytical data from a plutonium-metal exchange program conducted by six ERDA laboratories are statistically evaluated. The objective is an accurate determination of five metal impurities (aluminum, chromium, iron, nickel, silicon) in each of three plutonium metals by using data from four analytical methods. The statistical evaluation yields the weighted mean and its standard deviation for each method, plutonium metal, and impurity, using a procedure that minimizes the effect of outliers by ass… more
Date: July 1975
Creator: Martell, C. J.; Tietjen, G. L. & Horita, M. M.
Item Type: Refine your search to only Report
open access

Aerial Radiometric and Magnetic Survey of the Lubbock and Plainview Geologic Atlas Areas of Texas: Volume 1. Summary Report

Description: From introduction: Geodata International, Incorporated, conducted an airborne gamma ray and total magnetic field survey of a region of Northwest Texas which covered the Lubbock and Plainview Geologic Atlas Maps. The area shown on Figure 1 was surveyed from an aircraft using large-volume radiation detectors with computer-controlled airborne equipment. Each map line was flown in an east-west direction with an average length of 120 miles. A total of 47 map lines were surveyed spaced at 3-mile inte… more
Date: July 31, 1975
Creator: Geodata International
Item Type: Refine your search to only Report
open access

Allcuts: a fast, comprehensive fault tree analysis code

Description: A description, user instructions, and a source program listing are presented for ALLCUTS, a Fortran computer code for fault tree analysis. The code was specifically designed to be easy to use as well as fast, versatile, and powerful. It may easily be modified by a moderately skilled programer to fit the variable needs of the user and the capabilities of his computer. A code, BRANCH, for determining input data gate and bottom event interrelationships is also presented. (7 references) (auth)
Date: July 1, 1975
Creator: Van Slyke, W.J. & Griffing, D.E.
Item Type: Refine your search to only Report
open access

Backscattering of light ions from metal surfaces

Description: When a metal target is bombarded with light ions some are implanted and some are reflected from the surface or backscattered from deeper layers. This results in an energy distribution of the backscattered particles which reaches from zero to almost the primary energy. The number of the backscattered particles and their energy, angular, and charge distributions depends largely on the energy and the ion target combination. For high energies (i.e., greater than50 keV for protons) particles are bac… more
Date: July 1, 1975
Creator: Verbeek, H.
Item Type: Refine your search to only Article
open access

Baseline Gas Turbine Development Program. Eleventh Quarterly Progress Report

Description: Progress is reported for a program to demonstrate by 1976 an experimental gas turbine powered automobile which meets the 1978 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine powered, standard size American automobile. NASA completed initial heat balance testing of a baseline engine. An additional 450 hours were run on ceramic regenerators and seals. Seal wea… more
Date: July 31, 1975
Creator: Schmidt, F. W. & Wagner, C. E.
Item Type: Refine your search to only Report
open access

Behavior of fluid instabilities in laser fusion pellets: results of 2-D calculations

Description: Two-dimensional Lagrangian hydrodynamics simulation techniques were used to study fluid instability in laser fusion pellets. A slab geometry comparison with classical Rayleigh-Taylor theory shows good agreement, as do other slab and spherical test problems over a wide range of accelerations and wavelengths. Isentropic ablative accelerations exhibit growth rates 50 percent-100 percent of classical values, while non-isentropic cases show suppressed growth. Design optimization at 100 kJ input ener… more
Date: July 1, 1975
Creator: Mead, W.C. & Lindl, J.D.
Item Type: Refine your search to only Article
open access

Breeder reactor economics

Description: This paper focuses on the comparative economics of fast breeder reactors versus light water reactors and develops an internally consistent set of financial techniques whereby a utility may determine and compare the costs of generating power with either system. The general methodology is used here to estimate the break-even capital costs for the breeder as a function of future uranium prices but is equally applicable to other reactor types. It is shown that by the time the breeder reactor (breed… more
Date: July 1, 1975
Creator: Stauffer, T. R.; Palmer, R. S. & Wyckoff, H. L.
Item Type: Refine your search to only Report
open access

Brine chemistry: scaling and corrosion. Geothermal research study in the Salton Sea region of California

Description: The purpose of this report is to recommend a reasonable program of brine chemistry research that will result in the development of methods for predicting and controlling scale deposition, and in guidelines for the selection of corrosion-resistant construction materials. First, background information, which is necessary for the understanding of the problems of scaling and corrosion in the Salton Sea KGRA, is presented through a review of the history of geothermal exploration and development in t… more
Date: July 1, 1975
Creator: Hoffmann, Michael R.
Item Type: Refine your search to only Report
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