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Chemical Coolants for Machining Uranium in the Presence of Trace Amounts of Chloride (open access)

Chemical Coolants for Machining Uranium in the Presence of Trace Amounts of Chloride

Discussion of laboratory tests to reduce uranium corrosion.
Date: October 14, 1964
Creator: Sprague, T. P.; Googin, J. M. & Phillips, L. R.
Object Type: Report
System: The UNT Digital Library
Evaluation of Diethers as Uranium Extractants (open access)

Evaluation of Diethers as Uranium Extractants

Report on the determination of several physical properties, pertinent to uranium extraction, for a number of ethers and related compounds.
Date: January 14, 1963
Creator: Googin, J. M.; Harper, W. L.; Phillips, L. R. & Postma, Fred W.
Object Type: Report
System: The UNT Digital Library
Portable Mercury Vapor Detector (open access)

Portable Mercury Vapor Detector

From abstract: "This report describes a functional mercury vapor detector which is a portable, self-contained, survey instrument, and had a minimum range from zero to two-tenths milligram of mercury per cubic meter of air."
Date: March 14, 1958
Creator: McMurray, C. S. & Redmond, J. W.
Object Type: Report
System: The UNT Digital Library
The Effect of Copper, Nickel, Iron, and Chromium on the Tensile Properties of Preferentially Oriented Beryllium Sheet (open access)

The Effect of Copper, Nickel, Iron, and Chromium on the Tensile Properties of Preferentially Oriented Beryllium Sheet

From abstract: The planes and modes of fracture as a result of the mixture of beryllium and other elements were investigated.
Date: February 14, 1958
Creator: Yans, F. M.; Donaldson, A. D. & Kaufmann, A. R.
Object Type: Report
System: The UNT Digital Library
Contaminant effects study : final report, January 5 to September 15, 1962 (open access)

Contaminant effects study : final report, January 5 to September 15, 1962

From abstract: "This report describes work done on ARF Project C 216 from January 5, 1962 to September 15, 1962. The objectives of the program include evolution of an analytical research program to evaluate effects of environment contributed contamination on precise devices"
Date: November 14, 1962
Creator: Lieberman, A.
Object Type: Report
System: The UNT Digital Library
Literature Survey on World Isotope and Radiation Technology : First Interim Report Covering the Period from June 15, 1961 to August 14, 1961 (open access)

Literature Survey on World Isotope and Radiation Technology : First Interim Report Covering the Period from June 15, 1961 to August 14, 1961

Abstract: "This is the first interim report of a literature survey investigating the uses and technology of radioscopes in the countries of the world, with particular emphasis necessarily placed on those more highly industrialized nations. Part I includes a general summary of the quantity and quality of radioisotope work being performed in these countries. Among the outstanding radioisotope applications with respect to quantity is the work of Japan in chemical research, that of USSR in metals research, and that in the USA in medical research. A detailed qualitative examination of the relatively narrow region of radioisotope applications in leak detection is also presented. Part II of this report gives a direct comparison between the progress and status of the US and the USSR in the varied uses of radio-isotopes."
Date: August 14, 1961
Creator: Haffner, J. W. & Stone, C. A.
Object Type: Report
System: The UNT Digital Library
Development and Evaluation of High-Temperature Tungsten Alloys : Final Report, October 1, 1960 - September 30, 1960 (open access)

Development and Evaluation of High-Temperature Tungsten Alloys : Final Report, October 1, 1960 - September 30, 1960

This report summarizes investigations taken between October 1, 1959, to September 30, 1960 with the objectives of developing high-tungsten alloys which are readily fabricable into massive and complex shapes and which possess adequate strength for operation at temperatures up to 2000 F. Within this report, studies are divided into two main categories: alloy development and material fabrication techniques
Date: December 14, 1960
Creator: Holtz, F. C. & Van Thyne, R. J.
Object Type: Report
System: The UNT Digital Library
Corrosion of Type 347 Stainless Steel in the Uranium-Derby Pickle Bath (open access)

Corrosion of Type 347 Stainless Steel in the Uranium-Derby Pickle Bath

Abstract: In one of the final stages of the process at the Mallinckrodt Uranium Refining Center, a 45 per cent nitric acid solution at about 170 F is used to pickle the calcined magnesium fluoride scale off the uranium derbies. The increase in the fluoride-ion content of the bath tends to promote corrosion of the Type 347 stainless tanks. This attack becomes excessive if 0.3 g/liter of fluoride ion or more is present. It was found that if aluminum ion is added to the solution the corrosiveness of the bath can be controlled. Two or three times as much aluminum ion as fluoride ion present is found satisfactory at 170 F. Indications are that the tying up of the fluoride-ion by the complexion [AlF6]8 is responsible for the corrosion control.
Date: July 14, 1954
Creator: Peoples, R. S.; Fink, F. W.; Stewart, O. M. & Braun, W. J.
Object Type: Report
System: The UNT Digital Library
Magnetic Recorder for Nuclear Pulse Application : Covering the Period from October 6, 1959 to December  5, 1959 (open access)

Magnetic Recorder for Nuclear Pulse Application : Covering the Period from October 6, 1959 to December 5, 1959

"Abstract: Data on analog magnetic tape characteristics are presented along with results from conventional and modulator playback system operational tests. Theoretical considerations imply that the modulator head should be loss sensitive to short term variations in record and playback tape speed. It is also pointed out that although a tape recorder operating at 7.5 in./sec has only 12 kcs bandwidth for sinusoidal wave forms. the record and play-back amplifiers for pulse recording can operate with other bandwidths. These amplifiers must be capable of passing a square wave with a frequency of 1.5 kcs. A square wave of such frequency represents the condition of 350 microsecond pulses with a 700 microsecond period. (J.R.D)."
Date: December 14, 1959
Creator: Burgwald, G. M.
Object Type: Report
System: The UNT Digital Library
The Effect of Gaps on Pile Reactivity (open access)

The Effect of Gaps on Pile Reactivity

From abstract: "The variation of the reactivity of a pile as a function of width of a transverse gap is obtained. The method involves first finding the boundary condition satisfied by the flux at the gap face. This, in principle, provides enough information for a complete solution of the pile equations. A method for calculating the reactivity change is presented. The calculated reactivity is compared with experiment and a brief discussion of the validity of the approximations is given."
Date: July 14, 1952
Creator: Tamor, S. & Ergen, W. K.
Object Type: Report
System: The UNT Digital Library
Organo-Phosphorous Compounds for Solvent Extraction (open access)

Organo-Phosphorous Compounds for Solvent Extraction

From summary: "The influence of the structure of phosphate esters on the distribution coefficient of uranium between solutions of these esters in carbon tetrachloride and aqueous nitrate solutions has been studied. Esters of secondary alcohols showed higher distribution coefficients than primary alcohols. Phenyl esters extracted less uranium than alkyl esters, and the presence of other negative groups also resulted in less extraction. Compounds containing carbon to phosphorus bonds gave higher distribution coefficients than the corresponding esters, and the distribution coefficients increased with the number of such carbon to phosphorus bonds. Tributyl phosphine oxide (with three carbon to phosphorus bonds) showed high distribution coefficients with many salts, including uranyl nitrate, uranyl sulfate, uranyl chloride, thorium nitrate, plutonium (IV) nitrate and some of the fission products in nitrate solution. It is planned to study these and similar compounds further."
Date: August 14, 1952
Creator: Higgins, C. E.; Baldwin, W. H. & Ruth, J. M.
Object Type: Report
System: The UNT Digital Library
Electromagnetic Research Division Quarterly Progress Report, Part I for Period Ending June 30, 1952 (open access)

Electromagnetic Research Division Quarterly Progress Report, Part I for Period Ending June 30, 1952

From abstract: "On the 86-inch cyclotron a 41-kw beam has been calorimetered at a net ion loading efficiency of 40%; the average proton current was 1.85 ma at 22.5 Mev. Practical specific yields have been determined for (p,2n) reactions on zinc and bismuth. The investigation of products of proton-induced fission of uranium has been continued and new techniques are being used in measuring angular distribution of reaction products. The 63-inch heavy particle cyclotron is now in operation; N+++ particles have been accelerated to ~25 Mev. In preliminary tests, induced activities have been detected in carbon, nitrogen, and oxygen targets. A hot-cathode ion source is ready for test operation. The 22-inch cyclotron is being used in an investigation of the problems associated with the use of rf and dc electrodes for the acceleration of protons from the ion source into the dees. Radiation-induced corrosion in Inconel tubing containing #21 eutectic (ANP) has been produced by proton irradiation in the 86-inch cylclotron; it is shown that the corrosion was not due to thermal effects. Approximately 150 grams of highly purified U 238 (< 5 ppm U 235) have been prepared, and two grams of thorium 230 (ionium) has been enriched to 90.6%."
Date: November 14, 1952
Creator: Livingston, Robert S. & Howard, F. T.
Object Type: Report
System: The UNT Digital Library
An "Exact" Analysis of a Cylindrical Plasma in a Magnetic Field (open access)

An "Exact" Analysis of a Cylindrical Plasma in a Magnetic Field

Abstract: "The analysis of an immobilized plasma is here extended to the case where the geometry is cylindrical rather than Cartesian. (This report, UCRL-4439 (Rev, 4 constitutes Part II of the report series (UCRL-4466, Parts I, III, and IV) dealing with this general problem.)"
Date: January 14, 1955
Creator: Tonks, Lewi, 1897-1971
Object Type: Report
System: The UNT Digital Library
Description of a Thermonuclear Reactor Based on the Use of a Layer of Relativistic Electrons to Confine and Heat the Plasma (open access)

Description of a Thermonuclear Reactor Based on the Use of a Layer of Relativistic Electrons to Confine and Heat the Plasma

The following report describes a thermonuclear reactor based on the use of a long layer of rotating relativistic electrons to confine and heat the plasma.
Date: March 14, 1957
Creator: Christofilos, Nicholas C.
Object Type: Report
System: The UNT Digital Library
Preferential Pumping and Its Application to the P⁴ Experiment (open access)

Preferential Pumping and Its Application to the P⁴ Experiment

Report analyzing the "preferential removal of neutral gas from an incompletely ionized plasma in which the ionized particles are allowed to drift along magnetic field lines through a differentially pumped channel" and its relation to the P⁴ experiment. The report also analyzes the regenerative and non-regenerative losses of plasma by radial diffusion, as well as "considerations relating to the ultimate disposal of overflow plasma."
Date: June 14, 1957
Creator: Hall, Laurence S. & Gardner, Andrew L.
Object Type: Report
System: The UNT Digital Library
Solutions of the Reactor Kinetics Equations for Time-Dependent Reactivities (open access)

Solutions of the Reactor Kinetics Equations for Time-Dependent Reactivities

Abstract: The reactor kinetics equations are combined into a single integral equation whose kernel describes the time-dependent characteristics of the reactor including six delayed groups of neutrons. Numerical solutions of the integral equation are given for constant, linear, and ∫sin²kx dx reactivities. An approximate solution of the integral equation is obtained which provides a basis for the formulation and solution of the reactor system control problem using the methods of servomechanisms theory. The reactor frequency response function, a product of the approximate solution, is calculated and plot given.
Date: December 14, 1955
Creator: Ash, Milton S.
Object Type: Report
System: The UNT Digital Library
Electronics Counting Rooms for Nuclear Research (open access)

Electronics Counting Rooms for Nuclear Research

Abstract: "This report describes six electronics areas at the Radiation Laboratory (Berkeley and Livermore) that are being successfully used with various particle acceleration for nuclear research. The electronics equipment, consisting of pulse amplifiers, scalers, coincidence circuits, pulse-height analyzers, automatic recording equipment, high-voltage supplies, etc., is arranged in such a manner that most experiments can be quickly set up, and a number of people can run experiments simultaneously. Advantage and limitations of these areas are discussed."
Date: June 14, 1956
Creator: Stripeika, Alexander J.
Object Type: Report
System: The UNT Digital Library
Small-Angle Neutron-Proton Scattering at 90 and 290 Mev (open access)

Small-Angle Neutron-Proton Scattering at 90 and 290 Mev

From abstract: "The relative differential neutron-proton scattering cross section has been measured in the range of center-of-mass angles from 5.1° to 36.0° for approximately 90-Mev neutrons and from 10.7° to 37.8° for approximately 290-Mev neutrons."
Date: September 14, 1954
Creator: Easley, James Warren
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Application of a Modified Debye-Huckel Theory to Fully Ionized Gases (open access)

Application of a Modified Debye-Huckel Theory to Fully Ionized Gases

Report discussing the equations of the Debye-Huckel theory modified to include quantum statistics.
Date: August 14, 1959
Creator: Kidder, R. E. & DeWitt, Hugh E.
Object Type: Report
System: The UNT Digital Library
Feasibility Study of Transient Version of Astron Thermonuclear Reactor : Part 1 (open access)

Feasibility Study of Transient Version of Astron Thermonuclear Reactor : Part 1

The following report proposes a concept of a transient version of Astron thermonuclear reactor while describing the basic concepts of the reactor and the design criteria.
Date: September 14, 1959
Creator: Chang, C. C.
Object Type: Report
System: The UNT Digital Library
Ore Occurrence Study, Mesa 4-1/2 Mines, Lukachukai Mountains, Apache County, Arizona (open access)

Ore Occurrence Study, Mesa 4-1/2 Mines, Lukachukai Mountains, Apache County, Arizona

Abstract: Mine mapping of the tyuyamunite-type deposits In the Salt Wash member of the Jurassic Morrison formation of the Lukachukai Mountains, Apache County, Arizona revealed recognizable spatial relationships between ore mineralization and: fractured areas, sedimentary features, and interstitial carbonate.
Date: March 14, 1957
Creator: Beam, Thomas E.
Object Type: Report
System: The UNT Digital Library
Investigation of Uranium Mineralization of the Liba Number 2 and Liba Number 17 Claims Near Cameron, Coconino County, Arizona (open access)

Investigation of Uranium Mineralization of the Liba Number 2 and Liba Number 17 Claims Near Cameron, Coconino County, Arizona

Subject: This report presents an investigation of a reportedly large low-grade ore body in the vicinity of Cameron, Arizona.
Date: January 14, 1957
Creator: Gray, Irving B.
Object Type: Report
System: The UNT Digital Library
Proceedings of the 1958 Nuclear Merchant Ship Symposium: Washington, D.C., August 21, 1958 (open access)

Proceedings of the 1958 Nuclear Merchant Ship Symposium: Washington, D.C., August 21, 1958

Proceedings of the 1958 Nuclear Merchant Ship Symposium.
Date: January 14, 1958
Creator: unknown
Object Type: Report
System: The UNT Digital Library
The Multi-Channel Pulse Analyser (open access)

The Multi-Channel Pulse Analyser

This report discusses the multi-channel pulse analyser including its components and operation.
Date: June 14, 1946
Creator: Ghiorse, Albert; Weissbourd, B. & Robinson, H.
Object Type: Report
System: The UNT Digital Library