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The Furnace Spectrum of Plutonium
Abstract: "The spectrum of plutonium has been observed over the temperature range of 2000 to 2600 C and a wavelength coverage of 3476 to 6888 A. The spectrum was excited in a modified King furnace."
Date:
May 12, 1953
Creator:
Conway, John G.
Object Type:
Report
System:
The UNT Digital Library
The Identification of the Angular Inclusions Present in Rolled Uranium
Hanford uranium contains minute angular inclusions which affect the microstructure, reactivity, and other important factors controlling the serviceability of the metal. Small quantities of the inclusions have been isolated by chemical means, and the x-ray diffraction patterns and chemical analyses of the isolated materials have been determined. As a first step in the identification of the inclusions present in rolled uranium, a search was made for a chemical method of separating the inclusions from the matrix metal.
Date:
May 15, 1953
Creator:
Scott, F. A.
Object Type:
Report
System:
The UNT Digital Library
TNX Evaporator Incident January 12, 1953
From abstract: "The circumstances are described pertaining to an explosion in a TNX evaporator during the concentration of a uranyl nitrate-nitric acid solution. TBP and Amsco diluent were probably present in the evaporator charge. A laboratory program involving small-scale atmospheric and closed-vessel distillations of various mixtures of UNH, HNO3, Amsco, TBP, and water indicate that an exothermic reaction between TBP and UNH, or between TBP and HNO3, or both, was responsible for the explosion. The danger areas of temperature, TBP concentration, pressure, and heating rate are defined and recommendations are made for safe evaporator operation.
Date:
May 15, 1953
Creator:
Colven, T. J.; Nichols, G. M. & Siddall, T. H.
Object Type:
Report
System:
The UNT Digital Library
Calculation of Stagewise Contacting Systems
From abstract: General expressions relating product stream compositions to the operating conditions of countercurrent stagewise extraction columns are derived by an inductive method, and the conversion of the general equations to ones involving the particular case of constant extraction factor is demonstrated. For comparison, the derivation of simple column equations by the use of finite difference equations is included.
Date:
May 22, 1953
Creator:
Bloom, J. L. & Auer, P. L.
Object Type:
Report
System:
The UNT Digital Library
Decontamination of Portable Instruments
The decontamination of portable instruments by the Calibration Unit has presented a problem for some time. Most of the contamination is in the 100 to 500 c/m or 500 to 2000 d/m range. Higher levels of contamination can usually be reduced to these levels, but further cleaning proves quite difficult
Date:
May 22, 1953
Creator:
Unruh, C. M.
Object Type:
Report
System:
The UNT Digital Library
Neutron Streaming in Steel: The Dependence of the Streaming on the Nickel Content of the Steel
The following report analyzes whether there is a difference between the neutron streaming in the "armor plate" and 347 stainless steel.
Date:
May 25, 1953
Creator:
Schamberger, Robert D. & Shore, Ferdinand J.
Object Type:
Report
System:
The UNT Digital Library
The Surface Reaction Between Oxygen and Thorium
Abstract: The rate of reaction of oxygen with arc-melted and rolled iodide thorium has been found to obey the parabolic rate law in the temperature range of 850 to 1415 C at 1 atmosphere pressure. The rate constant can be expressed as k = 6 x 10⁷ x e⁻⁶³³⁰⁰/RT cm²/sec. The energy of activation, 63,300 cal/mole, has a probable error of 2,100 cal/mole.
Date:
May 26, 1953
Creator:
Gerds, A. F. & Mallett, Manley William, 1909-
Object Type:
Report
System:
The UNT Digital Library
Outgassing Tests of Uranium Slugs
During the canning of slugs for Production Test 313-105-3-M, a high number of rejects were caused by gas voids in the A1-S1 bonding layer. Since the heat treatment of the slugs in a molten salt bath resulted in a chemically altered surface, an investigation was made to determine the volume of gas evolved from salt-bath heat-treated slugs as compared to other types of slugs. This test was designed as a preliminary test to determine if there were a significant differences.
Date:
May 27, 1953
Creator:
Johnson, H. A.
Object Type:
Report
System:
The UNT Digital Library
A Hanford Works Vacuum System
The remodeling, fabrication, and instrumentation of a high vacuum system are described. The faults encountered with the old system and their solution are outlined. Tests were made on diffusion pump oils and on the reduction of pump oil back diffusion. The measurement of high vacuum pressures by a cold cathode ionization gage at various points on a vacuum system are discussed.
Date:
May 28, 1953
Creator:
Holdreth, N. T.
Object Type:
Report
System:
The UNT Digital Library
Remarks on Reactivity Control in Light Water Moderated Reactors
Report discussing the effects of thermal diffusion length and certain details in the design of light water moderated reactors and their effect on reactivity.
Date:
May 28, 1953
Creator:
Stoker, R. L.
Object Type:
Report
System:
The UNT Digital Library
Counting Room Equipment and Procedures and Sample Preparation
The following are some of the equipment currently used in the Health Physics counting rooms at the Laboratory: scintillation counters, end window beta-gamma counters, precipitcon beta-gamma counter, autoscaler beta-gamma counter, and continuous flow proportional counter. This technical report describes the equipment, supporting equipment, procedures, and sample preparation in use at the Laboratory.
Date:
May 1954
Creator:
Weiss, M. M. & Marshall, J. B.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Regional Mapping in the Ruby Quadrangle, Arizona
Abstract: Reconnaissance mapping in the Ruby Quadrangle, Arizona, indicates the existence of a complex assemblage of volcanic rocks and associated sediments, divisible into a younger and older series.
Date:
May 1954
Creator:
Webb, Bruce P. & Coryell, Kirby C.
Object Type:
Report
System:
The UNT Digital Library
Zirconium Alloy Corrosion Data Submitted to the Zirconium Alloy Corrosion Committee Meeting : May 17, and 18, 1954
The following report is a collection of data and results from studies of zirconium alloy corrosion.
Date:
May 1954
Creator:
Kass, Stanley
Object Type:
Report
System:
The UNT Digital Library
Scale-Up of Alternate HRT Core
"In order to determine the factors involved in the scale-up of cores with concentric inlet and outlet pipes, a 48 inch carbon steel flow model, geometrically similar to a 6 foot diameter core, has been assembled and tested...Visual studies were made of dye and gas behavior in the sphere, and quantitative measurements of point residence times were obtained through the use of conductivity cells actuating a Brush recorder. Static pressure drop across the core was measured."
Date:
May 7, 1954
Creator:
Lesem, L. B. & Harley, P. H.
Object Type:
Report
System:
The UNT Digital Library
A Pebble-Bed Reactor for Stationary Power Plants
A preliminary study has been made of a solid homogeneous reactor for stationary power plant application. The core consists of graphite spheres impregnated with uranium and thorium, and the coolant is bismuth. This concept possible offers advantages over other solid fuel reactor systems with respect to simplification of core structure, fuel fabrication and fuel handling, and reduction of fuel inventory external to the reactor. From the results of this preliminary study, it appears that the potential cost of electric power from this reactor is competitive with that from other reactor systems which have been proposed for the same application. The Po210 produced in the coolant presents a decontamination problem, but is also possibly a valuable by-producgt.
Date:
May 15, 1954
Creator:
Beeley, R. J.
Object Type:
Report
System:
The UNT Digital Library
Radiation Effects, Quarterly Progress Report, October-December 1953
None
Date:
May 15, 1954
Creator:
Faris, F. E.
Object Type:
Report
System:
The UNT Digital Library
Response of Pressure Gauges to Dust-Laden Shock Waves
"A series of shock tube studies demonstrate that two types of pressure gauges respond to dust carried with shock waves by indicating an increase in dynamic pressure. This contribution to the dynamic pressure is approximately the product of the dust density and the square of the dust velocity under the experimental conditions. Besides this information studies give insight into the interaction of a square shock wave with dust when that dust is placed in a plane before and parallel to the shock front. It is found that the shape of the pressure wave is little changed except for a rounding of the front. The dust, after accelerating, is carried as a pulse with the mass flow velocity of the air."
Date:
1954-05-21?
Creator:
Banister, John Robert & Broyles, C. D.
Object Type:
Report
System:
The UNT Digital Library
Radiation Effects, Quarterly Progress Report, January-March 1954
None
Date:
May 24, 1954
Creator:
Faris, F. E.
Object Type:
Report
System:
The UNT Digital Library
Radiation Effects Quarterly Progress Report: January-March 1954
Report discussing the progress made on various research projects at North American Aviation during the quarter from January to March 1954.
Date:
May 24, 1954
Creator:
Faris, F. E.
Object Type:
Report
System:
The UNT Digital Library
Reactor Steam Power Plants: Economics
Economic study covering several classes of cycles of reactor steam power plants.
Date:
May 25, 1954
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Distribution of Thermal Neutrons from Fast Sources in Exponential Piles
Report regarding the mathematical analysis of the exponential pile experiment using highly absorbent slugs and assuming the emitting of fast neutrons. Related theory and equations are discussed.
Date:
May 27, 1954
Creator:
Anselone, Philip M.
Object Type:
Report
System:
The UNT Digital Library
Equipment and Preliminary Results for the Leaching of UO2 in a Basic Carbonate Circuit
Equipment has been designed and constructed for the purpose of leaching pure uranium minerals in both acidic and basic circuits. This equipment provides a means for removal of a series of samples during any one run, control over speed of agitation, indication of gas over pressure, and automatic temperature control. These units may be operated up to 1500 p.s.i. Solid UO2 samples were prepared by sintering under hydrogen to 1800 degree C. Preliminary results of the leaching of sintered UO2 in a basic Na2CO3-NaHCO3 circuit resulted in the formation of an insoluble yellow precipitate (probably Na2UO4) for low concentrations of Na2-NaHCO3. At higher carbonate concentrations no insoluble precipitate was formed and the rate of leaching was found to increase vary rapidly above 300 p.s.i. oxygen over pressure.
Date:
May 1955
Creator:
Pearson, Ray L.; Mackay, Theron L.; Wadsworth, Milton E. & Fassell, W. Martin, Jr.
Object Type:
Report
System:
The UNT Digital Library
Research and development of geophysical and geochemical techniques for uranium exploration on the Colorado Plateau
The general purpose of the work performed under this contract was to develop geophysical and geochemical methods and techniques which would be effective aides in exploring for uranium and to appraise their effectiveness as determined by the results of field surveys in prospective areas about to be drilled, or in an area where ore is already known.
Date:
May 1955
Creator:
Research, Inc.
Object Type:
Report
System:
The UNT Digital Library
Electroplated Metals on Uranium for Aluminum Cladding
Abstract: "Aluminum-clad nickel-plated uranium is corrosion resistant in boiling water. Samples with intentional defects in the aluminum-nickel clodding layers, after testing for more than 300 hr. showed no sign of rapid failure. The study of electroplated metals on uranium for aluminum cladding has defined the effects of several processing variables on the corrosion resistance. The quality of the uranium and the quality of the aluminum-nickel bond were important. Heat treatment and vacuum outgassing of the nickel-plated uranium prior to aluminum cladding were beneficial, and minimizing the amount of air present in the hot-press assembly was desirable. Variation in the steps for electroplating on uranium did not affect the corrosion resistance of aluminum-clad uranium."
Date:
May 4, 1955
Creator:
Beach, John G.; Schickner, William C.; Hopkinson, Dolores. & Faust, Charles L.
Object Type:
Report
System:
The UNT Digital Library