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321 Matching Results
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Artificial Radioactive Isotopes of Cerium and Lanthanum
The following document describes some studies of the radioactive isotopes of cerium and lanthanum lying on the light or neutron-deficient side of stability.
Date:
July 20, 1948
Creator:
Chubbuck, James B.
Object Type:
Report
System:
The UNT Digital Library
The Behavior of Some Solid Materials Under Pile Operating Conditions
Technical report abstract. The present state of knowledge concerning the effect of pile radiation on a variety of solid materials is reviewed. Radiation corrosion will not be a serious hazard for aluminum or stainless steel but it can be for iron or lead if either are exposed to water. Apart from corrosion the principal uncertainty is in regard to the Wigner effect on the behavior of metals. There is at present no ground for optimism regarding the behavior of tuballoy. The effect on aluminum or a bonding material while less severe must also be considered serious. The expectation in regard to graphite is that its behavior will not cause trouble during the first 100 days of operation although serious troubles will probably arise within two years of operation. Organic materials can be used safely only in regions of limited exposure.
Date:
July 20, 1944
Creator:
Burton, Milton, 1902- & Seitz, Frederick, 1911-2008
Object Type:
Report
System:
The UNT Digital Library
Beta-Counting Methods Applied to the Determination of Uranium in Low-Grade Ores
The following report covers investigations on the application of the beta counter as an analytical tool for use in experiments on the extraction and concentration of uranium from low-grade (.005-.02 % uranium) shale and phosphate rock ores.
Date:
July 1947
Creator:
Doig, J. R.; Igelsrud, Iver; Nelson, H. R. & Schwartz, C. M.
Object Type:
Report
System:
The UNT Digital Library
Contributions to the Water Problem
Technical report describing the investigation of the short-lived activities produced in oxygen compounds by irradiation with pile neutrons. The most prominent of these activities in cooling water is a beta and gamma emitting activity of about 8 second half-life. Because of its production by epicadmium neutrons it was believed to be the 8 second N16 produced in the pile by n,p on O16. The identification has been accomplished and it is established that the 8 second activity is N16. Part 2 of the report deals with the determination of the recoil range of the Al28 atoms formed by pile n,p reaction on Al27.
Date:
July 3, 1944
Creator:
Novey, Theodore B.
Object Type:
Report
System:
The UNT Digital Library
The Dibutyl Carbitol Extraction Procedure for the Separation of Tubanyl and Phosphate Ions
"This report is concerned with the effectiveness of this washback procedure in reducing the phosphate concentration and also with other methods by which the simultaneous extraction of phosphate along with tuballoy may be minimized."
Date:
July 12, 1945
Creator:
Lord, E. J.; Andrews, L. J. & Gates, J. W.
Object Type:
Report
System:
The UNT Digital Library
The Effect of Radiation on the Corrosion of Metals by Water
Technical report. Long-time tests have been made on the effect of various types of radiation on the corrosion of 2S aluminum in simulated W water. In no case was any acceleration of corrosion by the radiation observed; the effect of radiation, if any, appeared to be a protective one. Deuteron irradiation did accelerate the corrosion of mild steel at low flow rates in hot water of pH 6 to 7, but no appreciable effect was observed with copper, stainless steel, or tuballoy. The general theory of the effect of radiation on corrosion is discussed, with the conclusion that no acceleration of corrosion by radiation is to be expected in most cases of practical interest.
Date:
July 6, 1944
Creator:
Allen, A. O. (Augustine O.); Bowman, M. C.; Goldowski, Nathalie; Larson, R. G. & Treiman, L.
Object Type:
Report
System:
The UNT Digital Library
Exploration of the Avon Mica District, Latah County, Idaho
Report issued by the U.S. Bureau of Mines on the investigations conducted on the mica deposits found in Latah County, Idaho. Characteristics and properties of the mica deposits are listed. This report includes tables, and maps.
Date:
July 1946
Creator:
Reed, Glen C.
Object Type:
Report
System:
The UNT Digital Library
Extrusion of Compound Tubes of Aluminum and B4C
Various experimenters have shown (H.H. Gersman U.S. Patent 2,335,590, Nov. 30, 1943; Aluminum Co. of America, various technical papers; also CT-482) that when a billet is extruded by proper technique into a rod (or tube by a floating mandril) that flow of material is streamline and and the extruded article is essentially a space replica of the billet, with linearly distorted coordinates. Advantage is taken of this fact in the manufacture of alclad tubing in which a billet containing an inner core of one alloy with the outer part of another alloy cast around it is extruded together into an integral tube, e.g., to combine high corrosion resistance with high strength. The following experiments were carried out because of the desirability of obtaining a control rod which can be water cooled (or immersed in P9) and which contains boron. For some pile structures it may be desirable to have the major portion of the energy released by the neutron absorption of the control rod be spend in the rod itself by the nuclear reactions [formula] rather than in the surrounding media as is the case when absorption of neutrons is by cadmium according to the reaction [formula]. In the later …
Date:
July 1, 1944
Creator:
Creutz, E. C.
Object Type:
Report
System:
The UNT Digital Library
Factors Affecting the Extraction of Uranium with Dibutyl Carbitol
Abstract: "This is a compilation of the material in several reports on the extraction of uranium from aqueous solutions with dibutyl carbitol. Data is presented concerning the optimum conditions for the extraction of the uranium and elimination of impurities."
Date:
July 8, 1946
Creator:
Weaver, Boyd S. & Larson, C. E.
Object Type:
Report
System:
The UNT Digital Library
Factors Affecting the Penta-Ether Extraction Uranium
This report discusses the contributions of the workers at Tennessee Eastman Corporation in the investigation of limiting conditions in the application of penta-ether (aka. dibutoxytetraethylene).
Date:
July 25, 1947
Creator:
Musser, D. F.; Krause, D. P. & Smellie, Robert H.
Object Type:
Report
System:
The UNT Digital Library
Factors Affecting the Precipitation of Uranium Peroxide
Abstract: "This is a compilation of the data on uranium peroxide precipitations appearing in several reports. The solubility product is measured. The effect of many individual ions on the hydrogen peroxide decomposition rate and the complexing of uranium is demonstrated. Studies on plant and other highly contaminated solutions are not included."
Date:
July 8, 1946
Creator:
Mogg, D. W. & Larson, C. E.
Object Type:
Report
System:
The UNT Digital Library
Fluorocarbons : Final Report on O.S.R.D. Research at Purdue University
This report follows research done at the Purdue Research Foundation and Department of Chemistry on fluorocarbons done by the Office of Scientific Research and Development.
Date:
July 1943
Creator:
McBee, Earl Thurston
Object Type:
Report
System:
The UNT Digital Library
Gas Injection into the McClosky Limestone in the Griffin and New Harmony Oil Fields, Indiana and Illinois
Report issued by the U.S. Bureau of Mines conducted a study on the injection of gas into the McClosky limestone in northern Illinois and Indiana. The resulting increases in oil and gas production from this area are presented. The report includes maps, graphs, tables, and illustrations.
Date:
July 1945
Creator:
Riggs, C. H.
Object Type:
Report
System:
The UNT Digital Library
General Index to Experiment Station Record, Volumes 71 to 80, 1934-1939
A topical, alphabetically arranged index to volumes 71-80 including experiment station records, publications reviewed, and foreign publications. In has a list of all editorial notes from the referenced volumes.
Date:
July 1949
Creator:
United States. Office of Experiment Stations.
Object Type:
Book
System:
The UNT Digital Library
The General Picture of Irradiation Damage to Tissues
The following report is divided into two parts, both parts center around the effects of radiation on skin tissue. Part one focuses on superficial radiation, or Beta rays, while part two is on penetrating radiation, or neutrons and gamma rays.
Date:
July 8, 1947
Creator:
Henshaw, Paul S. & Snider, Ray S.
Object Type:
Report
System:
The UNT Digital Library
Healing of Fast-Neutron-Induced Changes in Graphite. II. The Effect of Heating During Exposure, Interim Report on Problem 323 MLC 2301
Technical report. The effect of temperature during pile exposure on the fast-neutron-induced change in properties of graphite was studied. Temperatures up to 125 degrees C have no effect upon the rate of increase of elastic modulus; pieces exposed at 300 degrees C on the other hand show no change at all in elastic modulus. The increase in electrical resistance s an inverse function of the temperature of exposure at all temperatures in the range 60 to 300 degrees C.
Date:
July 10, 1944
Creator:
Neubert, Thomas A.; Novick, A.; Schenck, R. & Shapiro, E.
Object Type:
Report
System:
The UNT Digital Library
High-Frequency Pulse Generator
Introduction: "The purpose of this work was to develop a high-frequency pulse generator that could be used in conducting research on high-rate trigger pairs and scaler circuits. The need for an instrument of this type arose because there was no parallel commercial instrument having this type arose because there was no parallel commercial instrument having a pulse recurrence frequency over approximately 200,000 pulses per second."
Date:
July 3, 1947
Creator:
Ohmart, Philip E.
Object Type:
Report
System:
The UNT Digital Library
Impact of the War on the Cleveland, Ohio Area
Report describing the industrial area of Cleveland, Ohio including compiled statistics and information about the effects of World War Two on the labor force and industrial expansion of the area.
Date:
July 1944
Creator:
Fisko, Both H.
Object Type:
Report
System:
The UNT Digital Library
Index to Probate Records of Texas: Number 100, Hardin County, September 9, 1867-March 18, 1939
Index of probate cases housed in Hardin County Courthouse as of September 9, 1867-March 18, 1939, providing information about the holdings and listing names, filing dates, and case numbers for each.
Date:
July 1941
Creator:
Texas Statewide Records Project
Object Type:
Book
System:
The Portal to Texas History
Influence of Total Surface Beta Irradiation on the Gross Metabolic Pattern of Rats
The following report records the study of albino rats subjected to beta rays and analyzes the skin reactions and metabolic patterns.
Date:
July 30, 1946
Creator:
Anderson, Elizabeth
Object Type:
Report
System:
The UNT Digital Library
Investigations of Domestic Radioactive Raw Materials, Beryllium, and Other Trace Elements Monthly Report: June 1948
Monthly report of the U.S. Geological Survey's trace element investigations including an outline of field work, laboratory work, and staff activities that have been completed or are in process.
Date:
1948-07~
Creator:
Geological Survey (U.S.). Trace Elements Office.
Object Type:
Report
System:
The UNT Digital Library
The Isolation and Properties of Curium
From introduction: "The discovery of element number 96, curium, was realized by the preparation and identification of the isotope Cm-242 by G. T. Seaborg, R. A. James and A. Ghiorso by cyclotron bombardment of Pu-239 with helium ions."
Date:
July 28, 1948
Creator:
Werner, Louis Bernard
Object Type:
Report
System:
The UNT Digital Library
Manganese Investigations - Metallurgical Division: 14. Hydrometallurgical Studies of Manganses Ores
Report issued by the U.S. Bureau of Mines regarding laboratory tests conducted on acid leaching of manganese ore. Descriptions of the methods used in testing and results are presented. This report contains tables, and graphs.
Date:
July 1942
Creator:
Anderson, Clarence Travis
Object Type:
Report
System:
The UNT Digital Library
Metallurgical Laboratory, Chemical Research - Radiation Chemistry, Report for the Month Ending June 30, 1944
Technical report with short reports on (1) P-9 recovery from UO2F2 solution; (2) Correlation of theories on action of radiation on matter; (3) Literature surveys on organic compounds and on chemistry of UO2F2; (4) effect of radiation on organic compounds; and (5) Effect of radiation on 100 area construction materials.
Date:
July 14, 1944
Creator:
Hogness, T. R. (Thorfin Rusten), 1894- & Burton, Milton, 1902-
Object Type:
Report
System:
The UNT Digital Library