Evaluation of Possible Radioactivity Transport in Groundwater (open access)

Evaluation of Possible Radioactivity Transport in Groundwater

"The possibility of radioactivity transport in the groundwater system as the result of a hypothetical maximum credible gas leak was evaluated." "The present study confirms the low radiation levels in the groundwater predicted in the initial calculations." (from Summary)
Date: May 11, 1973
Creator: Knutson, Carroll Field
System: The UNT Digital Library
A Portable Neutron Counter for Determining Weights of Deposits of Uranium-Fluorine Compounds (open access)

A Portable Neutron Counter for Determining Weights of Deposits of Uranium-Fluorine Compounds

Abstract: A high sensitivity, portable fast neutron counter has been developed for determining the weights of solid accumulations of uranium-fluorine compounds in closed process equipment.
Date: May 11, 1964
Creator: Stevens, R. H. & Smith, R. C.
System: The UNT Digital Library
Conversion of Mica-Window G-M Tube Lead-Pig Counters to Scintillation Detection (open access)

Conversion of Mica-Window G-M Tube Lead-Pig Counters to Scintillation Detection

Because of the excessive vertical fragility and high replacement costs of mice-window G-M tubes used in vertical and horizontal lead-pig shelf counters, it was requested that a simple system of conversions to reliable scintillation detection be accomplished.
Date: May 11, 1959
Creator: Spear, W. G. & Crouch, G. D.
System: The UNT Digital Library
High-Frequency Titration as Applied to the Determination of Thorium, Uranium, Sulfate, and Free Acid. Parts I Through V. (open access)

High-Frequency Titration as Applied to the Determination of Thorium, Uranium, Sulfate, and Free Acid. Parts I Through V.

The technique of high-frequency titrimetry has been applied to the determination of thorium, uranium, sulfate, and free acid. In Part I of this report, the reproducibility of the method for the titration of standard solutions which contained 50mg of thorium in the absence of interferences is established. The coefficient of variation of the method, under these conditions, was found to be less than one per cent. In Part II, the effect of uranium on the high-frequency titration of thorium, as well as the application of the method to actual samples, is discussed. Uranium in a ratio of 5 to 1 to thorium can be tolerated. When the method is applied to the analysis of representative samples, the coefficient of variation is one per cent.
Date: May 11, 1959
Creator: Menis, Oscar
System: The UNT Digital Library
Reprocessing of ARE Fuel, Volatility Pilot Plant Runs E-1 and E-2 (open access)

Reprocessing of ARE Fuel, Volatility Pilot Plant Runs E-1 and E-2

After two batches (~ 340 kg) of fluoride salt from the ARE were reprocessed, pilot plant operations were terminated because of a leak through which an estimated 780 g of uranium (as UF6) escaped. Of the 21 kg of highly enriched uranium in the feed, 93.12% was collected as UF6 product, 0.13% represented measured losses, and 3.72% was unaccounted for (leak). An additional 3.03% was reclaimed from NaF beds and equipment washes. The product met both chemical purity and activity specifications for product level UF6. Decontamination from fission products was essentially complete. A gross gamma D.F. was apparently limited by the low activity of the feed salt.
Date: May 11, 1959
Creator: Culler, F. L.
System: The UNT Digital Library
Experiments on Polarization in Scatterig Deuterons from Complex Nuclei and in Proton-Proton Scattering (Thesis) (open access)

Experiments on Polarization in Scatterig Deuterons from Complex Nuclei and in Proton-Proton Scattering (Thesis)

Abstract: "The elastic double scattering of deuterons by complex nuclei has been investigated experimentally. Measurements were made on carbon, aluminum, and copper at around 157 Mev; on lithium, beryllium, and carbon at around 125 Mev; and on carbon and aluminum at 94 Mev. The expected tensor components of the deuteron polarization have not been observed. Measurements have been made of the differential cross section and vector-type polarization as a function of angle for the scattering of deuterons from the above elements, at the above energies. The observed polarizations were larger than would be expected on the basis of the individual nucleon-nucleus interactions. In a second experiment we measured the 169-Mev proton-proton polarization at 10, 15, 22.5, 30, and 35 in the laboratory system. The results indicate that partial waves up to and including L = 3 are important at this energy."
Date: May 11, 1956
Creator: Baldwin, John A., Jr.
System: The UNT Digital Library
Neutral H Atom and Molecular Ion (H₂⁺) Injection into the Mirror Machine at Energies About One Mev (open access)

Neutral H Atom and Molecular Ion (H₂⁺) Injection into the Mirror Machine at Energies About One Mev

This report presents the best estimate possible on the basis of the available information as to how high an energy would be necessary in order that the gas pressure which could be tolerated would be attainable with present techniques (say 10-(-7) mm Hg.)
Date: May 11, 1956
Creator: Lauer, Eugene J. & Gibson, Gordon
System: The UNT Digital Library
Reduction of Air Borne Contamination UO₃ Plant (open access)

Reduction of Air Borne Contamination UO₃ Plant

Gradual corrosion and mechanical wear of equipment over a period of years has affected the seals and gasketing of the electric pot calcining equipment in the 224-U Building Cell E to such an extent that the desirable vacuum cannot be maintained in the pots. Air contamination has been gradually increasing, and this, together with a lowering of the mask working limits, has made it necessary to require personnel to wear assault masks continuously. Indications are that, with the increased production now required, the level of air contamination will continue to rise unless measures are taken to prevent it. The Manufacturing Department has requested that a project be established to reduce the contamination level. Several items of improvement are listed for consideration including, in general, the electric pot agitation and sealing, semi-automatic pot unloaders, cell ventilation and air locks, and the nitric acid off-gas system and stacks. Because of the urgency of improving the conditions, the project, at first, is to provide for immediate improvements for the electrical pot agitation, the pot cover leakage, and the nitric acid off-gas system and stack. Additional study will be required to determine the extent of the ventilation and semi-automatic unloading improvements required.
Date: May 11, 1956
Creator: Ingalls, W. P. & Sanborn, K. L.
System: The UNT Digital Library
Studies Regarding the Role of Wyoming Natural Gas in Precipitating Primary uranium Minerals from Pregnant Solutions (open access)

Studies Regarding the Role of Wyoming Natural Gas in Precipitating Primary uranium Minerals from Pregnant Solutions

Abstract: This project was designed to test the chemical feasibility of depositing of depositing a primary uranium mineral from a pregnant solution by exposing the solution to natural gas in an environment favorable to such deposition.
Date: May 11, 1956
Creator: Sims, Harry M. & Smith, Fred L.
System: The UNT Digital Library
Analysis of factors affecting selection and design of air-cooled single-stage turbines for turbojet engines 4: coolant-flow requirements and performance of engines using air-cooled corrugated-insert blades (open access)

Analysis of factors affecting selection and design of air-cooled single-stage turbines for turbojet engines 4: coolant-flow requirements and performance of engines using air-cooled corrugated-insert blades

Report presenting an investigation of the estimated minimum cooling requirements and related performance of turbojet engines equipped with high-performance single-stage turbines with air-cooled corrugated-insert blades over a range of turbine-inlet temperature, tip speed, and hub-tip radius ratio for Mach number 2 at 50,000 feet. The effects of stress-ratio factor, flight Mach number, altitude, turbine rotor impeller efficiency, and outside heat-transfer coefficient on cooling requirements were also investigated.
Date: May 11, 1955
Creator: Slone, Henry O. & Hubbartt, James E.
System: The UNT Digital Library
Comparison of two methods of modulating the throat area of convergent plug nozzles (open access)

Comparison of two methods of modulating the throat area of convergent plug nozzles

Report presenting an investigation to determine the effect on performance of two methods of throat-area modulation of two convergent plug nozzles. Data were obtained over a range of pressure ratios. Results regarding the performance of the translatable outer-shell-type plug nozzle, performance of the iris-outer-shell-type plug nozzles, sensitivity to throat-area variation, and air-flow parameter are provided.
Date: May 11, 1955
Creator: Krull, H. George & Beale, William T.
System: The UNT Digital Library
Moderator Evaluation for the K Piles - AGHT (CHF) and 185 W Graphite (open access)

Moderator Evaluation for the K Piles - AGHT (CHF) and 185 W Graphite

This report describes the evaluation of physical properties of AGHT and 185-W graphites that are important to pile construction and operation. On the basis of these data, purified AGHT graphite was allocated to either filler block positions in the central regions of the K piles or to the upper or lower reflectors. This decision was based on the similarities of physical properties between AGHT graphite and the other moderator components. A similar allocation could be made for 185-W graphite for some future pile if it can be successfully purified or if purification is not required.
Date: May 11, 1955
Creator: Sparks, G. R. & Riley, W. C.
System: The UNT Digital Library
Preliminary Results From Free-Jet Tests of a 48-Inch-Diameter Ram-Jet Combustor With an Annular Can-Type Flame Holder (open access)

Preliminary Results From Free-Jet Tests of a 48-Inch-Diameter Ram-Jet Combustor With an Annular Can-Type Flame Holder

Free jet tests of 48 inch diameter ramjet combustor with annular can-type flame holder.
Date: May 11, 1955
Creator: Wentworth, Carl B.; Dobson, Wilbur F. & Rayle, Warren D.
System: The UNT Digital Library
Preliminary Results From Free-Jet Tests of a 48-Inch-Diameter Ram-Jet Combustor With an Annular Can-Type Flame Holder (open access)

Preliminary Results From Free-Jet Tests of a 48-Inch-Diameter Ram-Jet Combustor With an Annular Can-Type Flame Holder

Report presenting an investigation in an NACA free-jet facility of a ramjet engine with an experimental 48-inch-diameter combustor. Three combustor lengths and three fuel-distribution systems were investigated over a range of fuel-air ratios and at two air flows. Results regarding the combustor performance and ignition data, velocity profile, and starting characteristics are provided.
Date: May 11, 1955
Creator: Wentworth, Carl B.; Dobson, Wilbur F. & Rayle, Warren D.
System: The UNT Digital Library
Preliminary Results From Free-Jet Tests of a 48-Inch-Diameter Ram-Jet Combustor With an Annular-Piloted Baffle-Type Flameholder (open access)

Preliminary Results From Free-Jet Tests of a 48-Inch-Diameter Ram-Jet Combustor With an Annular-Piloted Baffle-Type Flameholder

"A ram-jet engine with an experimental 48-inch-diameter combustor was investigated in a free-jet facility. The combustor design comprised a large-volume annular pilot region and an array of sloping baffle- or gutter-type flameholders. The combustor was intended to operate at a fuel-air ratio of about 0.037" (p. 1).
Date: May 11, 1955
Creator: Rayle, Warren D.; Smith, Ivan D. & Wentworth, Carl B.
System: The UNT Digital Library
Preliminary Results From Free Jet Tests of a 48-Inch-Diameter Ram-Jet Combustor With an Annular-Piloted Baffle-Type Flameholder (open access)

Preliminary Results From Free Jet Tests of a 48-Inch-Diameter Ram-Jet Combustor With an Annular-Piloted Baffle-Type Flameholder

Report presenting an investigation in a free-jet facility of a ramjet engine with an experimental 48-inch-diameter combustor. Three combustor lengths, three lengths of the shroud which separated the bypass air from the burning stream, and four fuel-distribution systems were investigated over a range of fuel-air ratios and a range of engine air flows. Results regarding the engine performance and ignition data, effect of fuel profile on combustion efficiency, total-pressure ratio, and distribution of static pressure in the main air stream are provided.
Date: May 11, 1955
Creator: Rayle, Warren D.; Smith, Ivan D. & Wentworth, Carl B.
System: The UNT Digital Library
Purex Pulse Generator Operation (open access)

Purex Pulse Generator Operation

A large (size 2) Purex pulse generator was installed in the 321 Building Tan Farm to pulse solutions in the prototype Purex HA Column. Flow sheet considerations indicated a need for information on leakage rates with various size weep holes in the pulse generator piston. In addition to leakage tests, experiments were conducted to determine the air required under the piston to hold the column contents away from the pulse generator piston thereby preventing leakage during shut down and the determine the time required to bleed the air trapped in the pulse leg when the column is first filled. [...] Leakage past the piston was not appreciably affected by pulse frequency. [..] Bleeding the air out of the pulse leg under start-up conditions, even with the piston weep hole plugged, was rapid. The longest time required to bleed the pulse leg was 36 minutes, which included a column-filling time of 30 minutes.
Date: May 11, 1955
Creator: McCarthy, P. B.
System: The UNT Digital Library
Effect of inlet-annulus area blockage on over-all performance and stall characteristics of an experimental 15-stage axial-flow compressor (open access)

Effect of inlet-annulus area blockage on over-all performance and stall characteristics of an experimental 15-stage axial-flow compressor

Report presenting an investigation of an experimental 15-stage axial-flow compressor to determine the effect of inlet-annulus area blockage on disrupting the rotating stall and altering the overall performance and stall characteristics of the compressor. It is part of a general investigation to determine how to alleviate the general problems of blade vibration and poor off-design performance associated with compressor rotating stall.
Date: May 11, 1954
Creator: Lucas, James G.; Finger, Harold B. & Filippi, Richard E.
System: The UNT Digital Library
Experimental Sea-Level Static Investigation of a Short Afterburner (open access)

Experimental Sea-Level Static Investigation of a Short Afterburner

Sea-level static testing of turbojet engine afterburner.
Date: May 11, 1954
Creator: Harp, James L., Jr.; Mallett, William E. & Shillito, Thomas B.
System: The UNT Digital Library
Experimental Sea-Level Static Investigation of a Short Afterburner (open access)

Experimental Sea-Level Static Investigation of a Short Afterburner

Report presenting a sea-level static investigation to determine the performance and some design principles for a short afterburner. The power section of a 12-stage axial-flow turbojet engine was used and the afterburner was designed to fit within the length required for the tail pipe used on the standard nonafterburning model.
Date: May 11, 1954
Creator: Harp, James L., Jr.; Mallett, William E. & Shillito, Thomas B.
System: The UNT Digital Library
Investigation of a translating-cone inlet at Mach numbers from 1.5 to 2.0 (open access)

Investigation of a translating-cone inlet at Mach numbers from 1.5 to 2.0

Report presenting an investigation in the 8- by 6-foot supersonic wind tunnel to evaluate the performance of a translating-cone inlet operated over a range of Mach numbers and angles of attack. The effects of spike projection and internal flow area variation on pressure recovery, external drag, and corrected air-flow variation were determined.
Date: May 11, 1954
Creator: Sterbentz, William H. & Leissler, L. Abbott
System: The UNT Digital Library
Low-velocity turning as a means of minimizing boundary-layer accumulations resulting from secondary flows within turbine stators (open access)

Low-velocity turning as a means of minimizing boundary-layer accumulations resulting from secondary flows within turbine stators

A study of a series of three single-passage nozzles, designed to turn the flow at different velocity levels but to identical outlet conditions, in order to determine whether secondary-flow accumulations of boundary-layer fluids within nozzles could be minimized by use of low-velocity turning. Results indicated that the type of turning with subsequent acceleration is highly effective in minimizing secondary-flow accumulations at the corner where the suction surface joins the end walls.
Date: May 11, 1954
Creator: Stewart, Warner L. & Wong, Robert Y.
System: The UNT Digital Library
Properties of Stainless Steel-Uranium Dioxide Fuel Plates (open access)

Properties of Stainless Steel-Uranium Dioxide Fuel Plates

From abstract: "A method for fabricating 30-in.-long stainless steel - uranium dioxide sheet was developed and the properties of the fabricated sheet were investigated."
Date: May 11, 1954
Creator: Keeler, J. R. & Cuddy, L. J.
System: The UNT Digital Library
Uranium - Zirconium Explosion in Nitric Acid (open access)

Uranium - Zirconium Explosion in Nitric Acid

The following report analyzes several reported incidents of uranium-rich zirconium-uranium explosions. This report offers notes designed to describe conditions sufficient to cause an explosion with an 80% wt. uranium alloy.
Date: May 11, 1953
Creator: Russell, R. B.
System: The UNT Digital Library