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Radiometric Analysis of Thick Samples
Introduction: Measurements of polonium content in solids are usually performed by dissolving the material and preparing a thin sample which can be measured with one of the available instruments. A measurement of the radiation emerging from the thick sample should be sufficient to evaluate the polonium content. For this reason a calculation has been performed and the results have been compared with those obtained by the thin sample method. Obviously this proposed method using thick samples would be faster.
Date:
March 1, 1944
Creator:
DeBenedetti, Sergio
Object Type:
Report
System:
The UNT Digital Library
Liquid Metal Fuel Reactor Experiment: Induction Welding for Remote Maintenance -- Final Report
Report concerning the technical feasibility of induction welding for use in remote maintenance at the Liquid Metal Fuel Reactor Experiment. Includes descriptions of the device used, test procedures, and results.
Date:
March 1960
Creator:
Dean, D. E.
Object Type:
Report
System:
The UNT Digital Library
Nuclear Track Image Intensifier
"Design and fabrication techniques were improved so that the large area image intensifier now performs well in image intensifier systems for photographing nuclear tracks. Two successful samples meeting most of the objectives were completed and started in circulation among members of the AEC Image Intensifier Committee for evaluation in systems to record nuclear tracks. Except for a reported long decay in the P-15 phosphor performance was quite good. Resolution, gain, and background requirements were met. Magnification was still high (1/6.5 compared to a design objective of 1/8) but can be lowered to 1/8 by a straightforward mechanical change. Evaporated layers of thallium activated rubidium and cesium iodide were improved and further evaluated. Improved control of color and persistence was obtained. Efficiency as high as 1/3 that of P-11 phosphor was obtained in some samples. The current test series confirmed earlier results that an increase in cesium iodide content shifts the emission spectrum towards the yellow. Burn-resistance and light output was poorer for the cesium enriched phosphors while decay time was decreased.
Date:
March 30, 1961
Creator:
DesRochers, R. D. & Stern, H. A.
Object Type:
Report
System:
The UNT Digital Library
Preparation of Ductile Zirconium: Progress Report for February 1950
Abstract: A tungsten tipped electrode has been used in the continuous casting arc furnace for a 25 minute period during which a 12 inch length of ingot was made. Thermocouple junctions within the mold wall have been improved to give mold zone temperature. A total of 10 iodide dissociation runs have been conducted using feed rates of .62-22.7 lbs ZrI₄ per hour with attendant conversion efficiencies of 97.7-16.4% and zirconium yields of 255-41.2 grams per hour. A curve expressing these data for an arbitrarily selected set of conditions is presented.
Date:
March 10, 1950
Creator:
DiPietro, W. O.; Findlay, G. R. & Moore, J. H.
Object Type:
Report
System:
The UNT Digital Library
Report on phase I drilling on the King Tut Mesa experimental program
This report will summarize what has been done and present the interpretations made at this stage of the program.
Date:
March 13, 1952
Creator:
Dodd, Philip H.
Object Type:
Report
System:
The UNT Digital Library
Report on Phase Ii Drilling on the King Tut Mesa Experimental Program
Summarizing and presenting the interpretations and conclusions based on the drilling through Phase II of the program.
Date:
March 27, 1952
Creator:
Dodd, Philip H.
Object Type:
Report
System:
The UNT Digital Library
A Study of the Mechanisms of Heat Treatment of Zirconium-Base Alloys : Status Report, July 1, 1955 - February 29, 1956
The kinetics of transformation of zirconium binary alloys is being pursued. Mechanical property variation as a function of transformation if also being investigated. Zirconium-tin and zirconium-titanium alloys transform very rapidly when quenched from the beta field. These alloys have, generally speaking, been demonstrated to be not amenable to heat treatment in the normal sense of the word. Eutectoid alloys, principally zirconium-molybdenum alloys, have shown a definite response to heat treatment in terms of mechanical property variation. An embrittling agent, probably "omega" phase, is suspect at this time for the brittleness observed in certain molybdenum alloys and the very high hardness levels reached in other alloys such as zirconium-niobium and zirconium-thorium. Work to establish the existence of omega phase is in progress and, it is hoped, suggestions for avoiding the brittle condition associated with it will be forthcoming.
Date:
March 15, 1956
Creator:
Domagala, R. F. & Levinson, David W.
Object Type:
Report
System:
The UNT Digital Library
An Ultrasonic System for Testing Isotope Heat Capsules
Introduction: This report describes a program to develop a nondestructive (ultrasonic) tester and testing procedure to perform integrity tests on isotope heat source containers. The increased application of isotope heat sources has brought more attention to the engineering problems encountered during fabrication. One of the most important of these problems is insuring the isotope containment during the long unattended periods of use. To determine the integrity of the heat source container, a nondestructive testing procedure must be adopted to test each heat source after fabrication.
Date:
March 1968
Creator:
Dozer, B. E.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Study on Uranium Favorability of the Brushy Basin Member of the Morrison Formation, Southeastern Utah and Southwestern Colorado
This report is a preliminary evaluation of the uranium resources of the Brushy Basin Member of the Morrison Formation of Late Jurassic age in southwestern Colorado and southeastern Utah. The project, which began July 1, 1976, and was completed October 1, 1976, was carried out by the Bendix Field Engineering Corporation (BFEC) for the Grand Junction Office of the U.S. Energy Research and Development Administration (ERDA).
Date:
March 1978
Creator:
Dubyk, W. S.; Gallagher, Gerald L. & Edmond, C. L.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Study on Uranium Favorability of the Brushy Basin Member of the Morrison Formation, Southeastern Utah and Southwestern Colorado: Plate 1
Supplementary data containing locations of uranium deposits in the Brushy Basin project area, Utah and Colorado.
Date:
March 1978
Creator:
Dubyk, W. S.; Gallagher, Gerald L. & Edmond, C. L.
Object Type:
Dataset
System:
The UNT Digital Library
Subcritical and Critical Flow Through Straight-Through, Elbow, and Tee "AN" Fittings and Sharp-Edged Orifices at Elevated Temperatures
Investigation of the flow through straight-through , elbow, and tee "AN" fittings at negligible approach velocity with approach temperatures up to 1100 degrees F.
Date:
March 6, 1957
Creator:
Ducoffe, Arnold L.; Bennett, John R. & Ray, C. Gable
Object Type:
Report
System:
The UNT Digital Library
RAYPAC : a Special-Purpose Analog Computer
As an aid in forecasting possible blast damage in areas distant from a bomb burst point, a special-purpose electronic analog computer has been developed. Sound ray paths (orthogonal trajectories to sound wave front) are computed as a function of meteorological conditions.
Date:
March 24, 1955
Creator:
Durham, H. B.
Object Type:
Report
System:
The UNT Digital Library
Exploratory drilling in the Posey and Markey localities, Red Canyon area, San Juan County, Utah
A report discussing exploratory diamond drilling in the Posey and Markey localities.
Date:
March 18, 1957
Creator:
Easton, William W. & Oertell, Eudene W.
Object Type:
Report
System:
The UNT Digital Library
Summary Report of Design Criteria for a Thermal Flux Liquid Metal Package Loop in the Advanced Test Reactor
From introduction: "Report summarizing all work completed during the preparation of design criteria for thermal flux loop."
Date:
March 1963
Creator:
Ebasco Services Incorporated
Object Type:
Report
System:
The UNT Digital Library
On the Structure of Sperm Whale Myoglobin. [Part] 1, The Amino Acid Composition and Terminal Groups of the Chromatographically Purified Protein
The report objective is to establish the amino acid composition of sperm whale myoglobin. From Summary: "The homoprotein that comprises 96% by weight of the protein present in crystalline sperm whale myoglobin may be received into at least five components by chromatography on the carboxylic resin IRC-50."
Date:
March 26, 1962
Creator:
Edmundson, A. B. & Hirs, C. H. W.
Object Type:
Report
System:
The UNT Digital Library
The Effects of Irradiation Cycling on Pressurized Water Reactor Blanket Fuel Elements
From introduction: This report details the results of the post-irradiation examination of a test involving one defected rod and one undefected rod.
Date:
March 13, 1957
Creator:
Eichenberg, John D.
Object Type:
Report
System:
The UNT Digital Library
Protactinium Chemistry
Report discussing protactinium, including the element's history and the results of various experiments.
Date:
March 15, 1950
Creator:
Elson, R. E.; Sullivan, J. C.; Studier, N. H. & Sullens, P. A.
Object Type:
Report
System:
The UNT Digital Library
The Kinetics of the Circulating-Fuel Nuclear Reactor
Abstract: "In a circulating-fuel reactor, the circulation of the fuel cause a damping of power oscillations of the reactor. This is demonstrated under the assumption, that there is no mechanical vibration coupled with the oscillation of reactor power, and that the shapes of the hydrodynamic flow does not vary with time."
Date:
March 30, 1953
Creator:
Ergen, W. K.
Object Type:
Report
System:
The UNT Digital Library
Stability of Solvates of Uranyl Nitrate in Non-Polar Solvents
From summary: The formation of weak molecular addition compounds in inert non-polar solvents has been studied in a new manner. The reactions between uranyl nitrate and weak organic bases have been characterized and the equilibrium constants evaluated."
Date:
March 1952
Creator:
Feder, H. M.; Ross, L. E. & Vogel, R. C.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Raw Data Release: Greenville 1° x 2° NTMS Area, Georgia, North Carolina, and South Carolina
From abstract: This report presents preliminary results of stream sediment and ground water reconnaissance in the Greenville National Topographic Map Series (NTMS) 10 x 20 quadrangle. Stream sediment samples were collected from small streams at 1413 sites for a nominal density of one site per 13 square kilometers (five square miles) in rural areas. Ground water samples were collected at 731 sites for a nominal density of one site per 25 square kilometers (ten square miles).
Date:
March 1978
Creator:
Ferguson, R. B.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Raw Data Release: Greenville 1° x 2° NTMS Area, Georgia, North Carolina, and South Carolina
Supplementary data containing geology reports, stream and ground water site location data in addition to areal distribution data to accompany a report on hydrogeochemical and stream sediment reconnaissance.
Date:
March 1978
Creator:
Ferguson, R. B.
Object Type:
Dataset
System:
The UNT Digital Library
Specification for Cleaning Zircaloy Fuel Rod Components
Abstract: "This specification covers the cleaning of Zir caloy-2 components of PWR fuel rods and such tools, gauges, or other devices as may be required in subsequent handling, welding and inspection per Fuel Rod Specification AP-292545, Section II-A-4 and Section II-B-3."
Date:
March 6, 1956
Creator:
Fischer, R. L.
Object Type:
Report
System:
The UNT Digital Library
Nuclear Prototype Power Plant Installation in Merchant Ships
Abstract: This report presents the results of a study performed by the Ford Instrument Company, Division of Sperry Rand Corporation, and its subcontractor, Maryland Shipbuilding & Drydock Company, for the Maritime Administration, U. S. Department of Commerce, under terms of Study Contract No. MA-1893, dated March 11, 1959. The purpose of this study is to evaluate various techniques for pretesting and installing nuclear prototype power plants in merchant ships and develop that technique offering the widest general application using time, cost and safety as essential criteria. Acknowledgement is made for the valuable counsel received from personnel of the American Bureau of Shipping, Isbrandtsen Company, Inc., Maritime Administration, Atomic Energy Commission, and the United States Coast Guard.
Date:
March 11, 1959
Creator:
Ford Instrument Company
Object Type:
Report
System:
The UNT Digital Library
An Experimental Gamma Irradiator for Hospital Sterilization
From foreword: This report presents the preliminary design of a gamma irradiator intended for use as an experimental hospital sterilizer.
Date:
March 7, 1960
Creator:
Frankfort, J. Harry; Haram, S. & Wallach, S.
Object Type:
Report
System:
The UNT Digital Library