Collection
95 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
95
next
Problems of Air-Borne Contamination in Handling of Pu F₄ Powders
Abstract: Studies were made of the air-borne contamination present during the operation of reducing plutonium tetrafluoride powder to the metal. Equipment design changes were made and operation technique changes were made until the amount of contamination present during operations was well below tolerance levels.
Date:
July 31, 1947
Creator:
Kennedy, William R.; Dumrose, A. & Ludwig, A.
System:
The UNT Digital Library
Fraunhofer Diffraction Pattern Produced by a Slit of Varying Width and its Application to High Speed Cameras
Abstract: "A theoretical and experimental investigation is made of the diffraction pattern produced by a slit, whose aperture varies uniformly from a constant value A to zero. The results of this investigation are applied to a proposed high speed camera. It is shown that diffraction effects are very serious and cannot be neglected. It seems, unless the suggested design of this high speed camera is changed, the camera will be of little use for accurate measurements, and photographs will show too much blue to give details."
Date:
November 11, 1947
Creator:
Geiger, F. E. & Brixner, Berlyn
System:
The UNT Digital Library
A Method for Rolling Uranium Foil
"This report gives briefly a rather simple method for fabricating foils from uranium buttons. Two log sheets one of a U-238 run and one of a U-255 run are given."
Date:
October 21, 1947
Creator:
Bernard, George L., (Jr.)
System:
The UNT Digital Library
Topical Report on Chemical Process to Recover Uranium from Phosphate Rock
The following report summarizes research done on dissolving uranium from phosphate rock and superphosphate and recovering it from solution in a more concentrated form.
Date:
November 15, 1947
Creator:
Igelsrud, Iver
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.
System:
The UNT Digital Library
Survey of Los Alamos and Pueblo Canyon for Radioactive Contamination and Radio Assay Tests Run on Sewer-Water Samples and Water and Soil Samples Taken From Los Alamos and Pueblo Canyons
"Report of the Survey of Los Alamos and Pueblo Canyon for radioactive contamination and radioassay tests run on sewer water samples and water and soil samples taken from Los Alamos and Pueblo Canyons." The objective of this report was to determine the extent and sources of radioactive contamination in the areas studied.
Date:
February 20, 1947
Creator:
Kingsley, William H.; Fox, Alvin; Tribby, J. F. & Doner, Elmer
System:
The UNT Digital Library
Calculation of end points in potentiometric analyses
From introduction: "It is the purpose of this report to give two further methods of determining end point of pontentiometric titration, neither of which require the plotting of a graph."
Date:
October 6, 1947
Creator:
Bennett, Carl A.
System:
The UNT Digital Library
Preliminary Report on Existing Active Particle Hazard-200 Areas
"Recent surveys by the Health Instrument Section have disclosed the presence of many small radioactive spots on ground surfaces in the T and B plant areas. Investigation has shown that representative samples of the spots when mechanically separated invariably end in a single radioactive particle."
Date:
October 22, 1947
Creator:
Mickelson, M. L.
System:
The UNT Digital Library
Action Taken on the Spot Contamination in the Separations Plant Areas
The following document analyzes radioactive spot contamination in and around the T and B Plant Areas.
Date:
October 30, 1947
Creator:
Parker, H. M.
System:
The UNT Digital Library
Freezing Point Data for UNH-H₂O-HNO₃ Systems
The following report follows a series of experiments on the freezing points of 25 UN-H2O-HNO3 solutions.
Date:
December 17, 1947
Creator:
Harmon, M. K.
System:
The UNT Digital Library
Effect of Heat Treatment of the Structure and Hardness of Gamma Extruded Uranium : Final Report, Problem Assignment 2-M
The following document is an interim report on studies made to determine the optimum time-temperature treatment to produce a recrystallized grain structure in gamma extruded uranium."
Date:
December 24, 1947
Creator:
Padden, R. M.
System:
The UNT Digital Library
A Method for the Determination of Traces of Metals: [Part] 1. Outline of the Method
Updated report about work that originated in February 1942 for the purpose of determining minor amounts of cadmium in uranium and related materials. A method was developed over a long series of studies made following the original report for determining small amounts of various materials in uranium and in a variety of other materials.
Date:
October 1947
Creator:
Bricker, Clark E.; Furman, N. Howell & McDuffie, Bruce
System:
The UNT Digital Library
Quarterly Report August 1947 to November 1947, Biology Division
The following document is a compilation of quarterly reports from August 1946 to November of 1947 from the Biology Division of the University of Chicago.
Date:
November 1, 1947
Creator:
Brues, Austin M.
System:
The UNT Digital Library
Studies of Liver Function in Experimental Animals With Special Reference to Radiation and Metal Exposure
Report discussing experiments investigating the effects of radiation and metal toxicity on the function of the liver, kidneys, adrenals, and bone marrow of experimental animals.
Date:
July 31, 1947
Creator:
Schwartz, Samuel; Schneider, Lorraine; Porter, Lillie Mae; Tinsley, Mary & Wallace, Jean
System:
The UNT Digital Library
Quarterly Report May 1947 to August 1947 : Biology Division
The following documents were compiled into a quarterly report that was to be published in the Radiobiology Volume of the PPR. The following reports provide data from the Biology department of the University of Chicago between May and August of 1947.
Date:
August 1, 1947
Creator:
Brues, Austin M.
System:
The UNT Digital Library
A method for the determination of traces of metals
Report describing quantitative recovery traces of electrolyzable metals in a mercury cathode. The majority of the report is concerned with separation of metals from concentrated uranyl sulfate solutions.
Date:
1947
Creator:
Bricker, Clark E.; Furman, N. Howell & McDuffie, Bruce
System:
The UNT Digital Library
A Method for the Determination of Traces of Metals III : Studies of the Distillation of Amalgams
Summary: "It has been demonstrated that the electrolysis-distillation stages of the procedure that has been developed for traces of metals may be utilized, with certain precautions, to recover milligram quantities of cadmium, cobalt, copper, iron, nickel and zinc. Lead remains partially as undissolved lead sulfate and hence the recovery of amounts ranging from 1 - 5 mg. is not advisable by this procedure."
Date:
October 1947
Creator:
Bricker, Clark E.; Furman, N. Howell & McDuffie, Bruce
System:
The UNT Digital Library
A Method for the Determination of Traces of Metals: [Part] 4. Polarographic Studies.
Report describing an updated method to determine traces of metals under polarographic studies, which operates at a higher cathode current density with a small area of the anode immersed in the solution where an appreciable quantity of iron was present in the solutions that were to be polarographed. The results of these studies are also presented.
Date:
November 1947
Creator:
Bricker, Clark E.; Furman, N. Howell & McDuffie, Bruce
System:
The UNT Digital Library
The Hematological Effects of Ionizing Radiations
This report follows the hematological studies conducted on the Plutonium Project. The studies focus on the internal and external effects of plutonium radiation on biological features, applying these effects toward the protection of individuals who worked in the Project, and using the findings generally for the protection of the public which was potentially in danger of exposure to these physical hazards.
Date:
October 1947
Creator:
Jacobson, Leon O.; Marks, Edna K. & Lorenz, Egon
System:
The UNT Digital Library
Acute Histopathological Effects of Single Doses of Slow Neutrons on Mice
The following report provides information conducted during histological observations made on the anatomy of female mice who have been exposed to 400 arbitrary units of slow neutrons.
Date:
February 5, 1947
Creator:
Snider, R.
System:
The UNT Digital Library
Tables of Neutron Cross Sections
Report presenting data tables which summarize neutron cross sections for elements from hydrogen to bismuth. This data was to be available on September 1, 1947. Purpose and acknowledgements are given as well as criteria for omitting measurements and explanation of the material.
Date:
October 28, 1947
Creator:
Way, Katharine & Haines, G.
System:
The UNT Digital Library
The Volumetric Assay of Uranium Tetrafluoride
The following report follows a study that was made to find alternative methods for the characterization of the uranium tetrafluoride.
Date:
1947
Creator:
Furman, N. Howell & Haight, G. P., Jr.
System:
The UNT Digital Library
The Reaction of Ferric Chloride With Uranium Tetrachloride
Abstract: Solid ferric chloride reacts with solid uranium tetrachloride to form a complex iron-uranium chloride compound at approximately 263°C. The vapor pressure of this compound is nearer to that of uranium tetrachloride than to the vapor pressure of ferric chloride.
Date:
January 20, 1947
Creator:
Haines, B. M. & Calkins, V. P.
System:
The UNT Digital Library
Interfacial Tension Measurement on A1(NO₃)₃ - H₂O - HNO₃ - Dibutyl Cellosolve System
This report discusses two methods used for experimental determination of the interfacial tension of an immisible aqueous-organic system where the density of the organic phase is less than that of the aqueous phase. The methods discussed are the falling drop method and the Donnan modification/rising drop method.
Date:
January 28, 1947
Creator:
Turk, E. H.
System:
The UNT Digital Library