Degree Level

231 Matching Results

Results open in a new window/tab.

The Neutron Sensitive PCP Ionization Chamber (open access)

The Neutron Sensitive PCP Ionization Chamber

Manual of operation for a neutron sensitive ionization chamber for reactor instrumentation.
Date: September 4, 1951
Creator: Abele, R. K. & Gundlach, J.
Object Type: Report
System: The UNT Digital Library
Leaching and Precipitation Tests on Grants Ores (open access)

Leaching and Precipitation Tests on Grants Ores

Leaching tests were run on two samples from the Grants area in New Mexico. Uranium extractions of 94 per cent were obtained by leaching Sample 6-1 with solutions containing 240 lbs. of Na2CO3 and 60 lbs. of NaHCO3 per ton and by leaching Sample 6-2 with 270 lbs. of Na2CO3 and 180 lbs. of NaHCO3 per ton. Cyclic tests were completed using caustic precipitation of the leach liquor.
Date: September 10, 1951
Creator: Abrams, Charles S. & George, D'Arcy R.
Object Type: Report
System: The UNT Digital Library
Calculation of k-o in a Uranium-Graphite Lattice (open access)

Calculation of k-o in a Uranium-Graphite Lattice

Since the 25 content of the uranium to be used in a MTA multiplying lattice is quite uncertain at present, it is necessary to assume various degrees of depletion in order to estimate the multiplication constant K-o and the production of 49 in an infinite uranium-graphite lattice
Date: February 8, 1951
Creator: Adelman, F.
Object Type: Report
System: The UNT Digital Library
Diffusion Equation Green's Functions for Box Problems (open access)

Diffusion Equation Green's Functions for Box Problems

The use of diffusion theory to attempt to reproduce the chemical data of Hicks and Stevenson for the spatial distribution of neutrons in a solid block of uranium that is bombarded by 190 Mev neutrons is described.
Date: December 27, 1951
Creator: Adelman, F.; Lepore, J. & Rosenblum, M.
Object Type: Report
System: The UNT Digital Library
Progress Report For January 16, 1951 - March 15, 1951 (open access)

Progress Report For January 16, 1951 - March 15, 1951

A progress report on the results obtained, during the period, on ore samples from Grants, New Mexico, Maryvale, Utah, Hite, Utah, a fluorite deposit in Utah, and Rand ores. Also reported are results obtained with anion exchange resins in pulp, and systematic studies with anion exchange resins. Application of the lyometallurgical process to several ores and the use of an activated alumina column for purification of pregnant solvent solutions before precipitation are mentioned. Analytical developments pertaining to boron and aluminum analysis are reported.
Date: 1951
Creator: American Cyanamid Company
Object Type: Report
System: The UNT Digital Library
Progress Report For March 16, 1951 - May 15, 1951 (open access)

Progress Report For March 16, 1951 - May 15, 1951

A progress report on investigations dealing with ores from Grants, New Mexico, Lukachukai Mountain District in Arizona, Belgian Congo, Thomas Mountain Range in Utah, and the Witwatersrand, South Africa. Anionic exchange resin studies such as resin in pulp, self elution with Rand leach liquors, adsorption of uranyl nitrate and uranyl perchlorate, adsorption of iron, manganese, cobalt, arsenic and molybdenum from sulfite solutions, adsorption or uranium from chloride bearing sulfate solutions are reported. Study of the sulfating step in the lyometallurgy process is reported.
Date: 1951
Creator: American Cyanamid Company
Object Type: Report
System: The UNT Digital Library
Progress Report For September 16, 1951 - November 15, 1951 (open access)

Progress Report For September 16, 1951 - November 15, 1951

This project report covers leaching and precipitation work on uranium ore samples from the Belgian Congo, South Australia (Radium Hill), Temple Mountain (Utah) and Grants, New Mexico. Ion exchange studies on the effect of cobalt, thiocyanate, and polythionates in Rand liquors and resin life testing studies are noted. Ion exchange work with Climax Uranium leach liquors using 2 inch diameter columns is reported. Lyometallurgical studies with the effect of organo-phosphates on the extraction of uranium from Chattanooga shales.
Date: 1951
Creator: American Cyanamid Company
Object Type: Report
System: The UNT Digital Library
Semi-Annual Progress Report in Chemistry for the Period October 1,1950--March 31,1951 (open access)

Semi-Annual Progress Report in Chemistry for the Period October 1,1950--March 31,1951

Report discussing the progress made on various chemistry research projects at Ames Laboratory during the period from October 1, 1950 to March 31, 1951.
Date: May 1, 1951
Creator: Ames Laboratory
Object Type: Report
System: The UNT Digital Library
Materials Testing Reactor Project Handbook (open access)

Materials Testing Reactor Project Handbook

The following handbook was made for the purpose of: (1) to give a semidetailed description of the testing reactor, and (2) to explain, in so far as possible, the reasons for the design.
Date: May 7, 1951
Creator: Argonne National Laboratory
Object Type: Report
System: The UNT Digital Library
Maximum Allowable Concentration for Air-Borne Beta Contamination (open access)

Maximum Allowable Concentration for Air-Borne Beta Contamination

The following report discusses an equation derived by which the maximum allowable concentration in the atmosphere of a beta-omitting isotope for which lung damage is the limiting consideration can be calculated.
Date: July 5, 1951
Creator: Bailey, J. C. & Henry, H. F.
Object Type: Report
System: The UNT Digital Library
Mound Laboratory Report for General Research: December 26, 1950 to April 16, 1951 (open access)

Mound Laboratory Report for General Research: December 26, 1950 to April 16, 1951

A report of quarterly results of research and development directed towards establishing new techniques and instruments towards improving present methods for determining levels of radioactivity accurately and safely.
Date: May 21, 1951
Creator: Baker, W. H.; Combs, J. F.; Rogers, A. J.; Curtis, M. L.; Gray, M. I.; Olt, R. G. et al.
Object Type: Report
System: The UNT Digital Library
Neutron Economy of Various Converter Reactor Designs (open access)

Neutron Economy of Various Converter Reactor Designs

The following report determines how many neutrons are being absorbed in various converter reactor designs, how many neutrons leak from the reactor and the breakdown between fast and thermal leakage. Another interest this paper examines is to determine how many neutrons are absorbed in thorium in the resonance region, at thermal energy, and in the blanket.
Date: December 12, 1951
Creator: Balent, Ralph
Object Type: Report
System: The UNT Digital Library
Gamma Ray Measurements at the BSR, Experiment II, Iron - Water (open access)

Gamma Ray Measurements at the BSR, Experiment II, Iron - Water

This report provides a table that summarizes the data taken from investigations of gamma radiation of the Bulk Shielding Reactor in an iron-water mixture. The results are plotted on a graph also provided in this document.
Date: May 3, 1951
Creator: Ballweg, L. H.
Object Type: Report
System: The UNT Digital Library
A Continuous Fission Product Separation Process; I. Removal of the Rare Earths (Lanthanum Cerium, Praseodymium, and Neodymium) From a Typical Liquid Bismuth-Uranium Reactor Fuel by Contact with Fused LiCl-KCl Mixtures (open access)

A Continuous Fission Product Separation Process; I. Removal of the Rare Earths (Lanthanum Cerium, Praseodymium, and Neodymium) From a Typical Liquid Bismuth-Uranium Reactor Fuel by Contact with Fused LiCl-KCl Mixtures

Technical report investigating the distribution of rare earth elements between a liquid bismuth-uranium solution and fused KCI-LiCi mixtures. Report warrants further research on the liquid bismuth-uranium-fused salt system due to the benefit of continuous fission removal processes.
Date: July 1, 1951
Creator: Bareis, D. W.
Object Type: Report
System: The UNT Digital Library
Loop-Type Liquid-Gas Separator (open access)

Loop-Type Liquid-Gas Separator

The following report is a study of the separating qualities of a loop-type separator that can obtain separation with a smaller pressure drop.
Date: November 17, 1951
Creator: Barlow, J. W.; Jones, F. H. & Reuther, R. H.
Object Type: Report
System: The UNT Digital Library
Werner-Type Uranium Complexes (open access)

Werner-Type Uranium Complexes

The following report analyzes the characteristics of eight chelated uranium complexes and seven uranium ammines, prepared from the reaction of organic solutions of uranium salts with complexing agents and organic bases.
Date: May 7, 1951
Creator: Barr, John T. & Horton, Charles A.
Object Type: Report
System: The UNT Digital Library
Ceramic-Based Materials for High Temperature Service (open access)

Ceramic-Based Materials for High Temperature Service

The following report provides data that was discovered from a preliminary literature survey that was made to define the utility of the newer refractory ceramics or ceramic-based materials.
Date: June 11, 1951
Creator: Bates, W. A.
Object Type: Report
System: The UNT Digital Library
An Experimental Determination of Fission Product Heating After Shutdown of the Low Intensity Training Reactor (open access)

An Experimental Determination of Fission Product Heating After Shutdown of the Low Intensity Training Reactor

Technical report containing the general arrangement of the Low Intensity Training Reactor and outcomes of experiments that have been performed in the reactor to measure the rate of fission product heat dissipation from the fuel pieces after loss of water. [From Summary, Introduction]
Date: September 25, 1951
Creator: Beall, S. E.
Object Type: Report
System: The UNT Digital Library
Developments in the Centrifuge Separation Project (open access)

Developments in the Centrifuge Separation Project

Preface: The results of the work undertaken at the University of Virginia, the research laboratory at Westinghouse, and the Standard Oil Development Co. are reported in Parts I, II, and III, respectively, of this volume.
Date: 1951
Creator: Beams, Jesse W.; Hagg, A. C. & Murphree, E. V.
Object Type: Report
System: The UNT Digital Library
A Discussion of the Fission Neutron Spectrum (open access)

A Discussion of the Fission Neutron Spectrum

The following report is based on the data of the energy spectrum of fission neutrons by Zinn and Sailard.
Date: 1951
Creator: Bennett, W. E. & Richards, H. T.
Object Type: Report
System: The UNT Digital Library
Physics Division Quarterly Progress Report for Period Ending March 20, 1951 (open access)

Physics Division Quarterly Progress Report for Period Ending March 20, 1951

Technical report covering classified work of the Critical Experiments Program in the Physics Division for the period December 20, 1950 to March 20, 1951. Report outlines investigations of properties of critical assemblies composed of uranium and various reflectors and moderators, preliminary measurements of the effective energy for fission in the assembly. [From Introduction and Summary]
Date: July 2, 1951
Creator: Bernstein, S.; Snell, A. H. & Wollan, E. O.
Object Type: Report
System: The UNT Digital Library
The Action of Oxygen on Activated Charcoal (open access)

The Action of Oxygen on Activated Charcoal

The following report provides information conducted with the purpose of ascertaining the effect of oxygen on activated charcoal at approximately one atmosphere by measuring the amount of CO2 formed over a known length of time.
Date: June 29, 1951
Creator: Bigelow, J. E.; Belaga, M. W. & Mulvihill, R. J.
Object Type: Report
System: The UNT Digital Library
Filtration of Radioactive Aerosols by Glass Fibers: Part Two -- Appendices (open access)

Filtration of Radioactive Aerosols by Glass Fibers: Part Two -- Appendices

From introduction: "Five appendices, each of which pertains to a separate phase of the Filtration of Radioactive Aerosols by Glass Fibers program."
Date: April 16, 1951
Creator: Blasewitz, A. G.; Carlisle, R. V.; Judson, B. F.; Katzer, M. F.; Kurtz, E. F.; Schmidt, W. C. et al.
Object Type: Report
System: The UNT Digital Library
The Effect of Reactor Irradiation on the Stress Strain Curve of Copper (open access)

The Effect of Reactor Irradiation on the Stress Strain Curve of Copper

The following report describes the method of a crystal of 99.99% pure copper grown under high vacuum and cut into two specimens used to test the effects of reactor irradiation on copper. Provided is a map of the results that show the difference between the unirradiated and irradiated copper samples through the process of stress strain.
Date: 1951
Creator: Blewitt, T. H. & Coltman, R. R., Jr.
Object Type: Report
System: The UNT Digital Library