Serial/Series Title
Country
Decade
Month
Day
50 Matching Results
Results open in a new window/tab.
Investigation of the Calyx No. 3 Mine, Temple Mountain Area, San Rafael Swell, Emery County, Utah
The following report studies uranium and vanadium ore deposits found in the Calyx No. 3 mine in the Temple Mountain area of the San Rafael Swell in Utah.
Date:
April 10, 1957
Creator:
Baumgardner, L. & Noble, E. A.
System:
The UNT Digital Library
Reconnaissance of uranium-bearing deposits, Yampa River region, Colorado
Discussing a reconnaissance of uranium-bearing deposits in the Yampa River Region, in Colorado
Date:
June 10, 1952
Creator:
Darnell, Richard P.
System:
The UNT Digital Library
Geology of the Poison Canyon Mine, Valencia County : Sec. 19, T. 13N., R. 9W., near Grants, New Mexico
This report deals with the uranium deposits at the Poison Canyon mine
Date:
March 10, 1953
Creator:
Mathewson, Donald E.
System:
The UNT Digital Library
Evaluation of Various Types of Personnel Shelters Exposed to an Atomic Explosion
Report describing experiments to evaluate the effectiveness of various kinds of shelters to protect occupants from nuclear and thermal radiation and blast effects.
Date:
May 10, 1957
Creator:
Vortman, Luke J.
System:
The UNT Digital Library
Thermal Spikes and Uranium Instability
Thermal spikes occurring during the life of a slug in a pile cause a momentary destruction of the original configuration of atoms in the metal. This process occurs at such a rate that in a thermal neutron flux of 10(13) neutrons per square centimeter per second each atom in the metal will be subject to temperatures above the melting point of uranium every 40 minutes.
Date:
December 10, 1952
Creator:
Last, G. A. & McLachlan, D., Jr.
System:
The UNT Digital Library
A Study of Efficiencies and Pressure Drop Characteristics of Air-Filtering Media
Removal of particles from air is discussed in terms of three classes of filtering media--air-sampling, respirator, and air-cleaning. Plots of efficiency versus filtering velocity are presented. The pressure drop characteristics of the filters are discussed in terms of initial pressure drops of the clean filters, variations in pressure drop of the individual filters, and comparison of loading rates.
Date:
August 10, 1953
Creator:
Adley, F. E.; Scott, R. H. & Gill, W. E.
System:
The UNT Digital Library
Diffusion of Stack Gases in Very Stable Atmospheres: Case II
In 1949 Barad presented two solutions to the general diffusion equation. Basic in both solutions is the assumption that in very stable atmospheres a point source may be replaced by a vertical area of uniform concentration at a short distance downwind. This vertical area is considered to exist at the distance at which the plume finally "levels-off" and assumes a flat ribbon-like appearance. In addition if the distance over which diffusion takes place is limited to one or two miles and if only the stable atmosphere with its narrow range of eddy sizes is considered, the average diffusion co-efficient (K) has a signficance which it does not have in the case of neutral equilibrium.
Date:
August 10, 1953
Creator:
Barad, M. L. & Shorr, B.
System:
The UNT Digital Library
A Preliminary Comparison of the Nannoplankton and Net Plankton of the Columbia River
Plankton collected from the Columbia River by the net method and by the centrifuge method were compared. The centrifuged plankton (nannoplankton) exceeded the net plankton in weight, in abundance of organisms and in radioactivity. Similar seasonal trends were present in both types of plankton.
Date:
September 10, 1953
Creator:
Coopey, R. W.
System:
The UNT Digital Library
SM-1 (APPR-1) Research and Development Program : Final Report on Short-Lived and Fission Product Activity in the SM-1 Primary Coolant, Task III
Abstract: The primary coolant of the SM-1 (APPR-1) was analyzed for short-lived and fission product activities. Manganese-56 was found to be the predominant non-fission product nuclide contributing to the short lived activity. Fission products were found in the coolant. It is concluded these fission products originate from a defects in the cladding and from surface contamination of the fuel elements.
Date:
March 10, 1959
Creator:
Brown, William S. & Hasse, Robert A.
System:
The UNT Digital Library
SM-1 Research and Development Program, Activity Buildup Program Task 1 : final report February 1958 to June 1959
Abstract: The results of activity buildup studies in the SM-1 (APPR-1) performed from February 1958 to January 1959 are reported. Data are presented on the extent, nature, and mechanism of the buildup of long-lived gamma emitting nuclides in the reactor primary system. Mathematical equations to describe the activity buildup are derived. Radiation levels after reactor shutdown are presented, as well as the predicted radiation levels at the end of core life.
Date:
August 10, 1959
Creator:
Brown, William S.; Bergen, C. Richard.; Bergmann, Carl A.; Chupak, Julius.; Fitzsimmons, Susanne R. & Grant, Louis G.
System:
The UNT Digital Library
An Automatic Polarograph for the Determination of Uranium in Process Waste Streams
The automatic polarograph is ideally suited for the analysis of waste streams for uranium in the Metal Recovery Process, and with modification, it is applicable to other processes, pilot plants, and even to laboratory set ups. The instrument is simple, dependable, and relatively trouble free in operation. It provides an immediate record of the uranium in the waste and, through better control of the process, lower processing costs.
Date:
December 10, 1953
Creator:
Koyama, K.; Michelson, C. E. & Alkire, G. J.
System:
The UNT Digital Library
Heat Flow Problems with Temperature Dependent Thermal Conductivity
Various non-linear calculations for heat conduction in an istropic, homogeneous medium are presented.
Date:
December 10, 1953
Creator:
Anselone, Philip M.; Banks, D. O. & Dean, R. Y.
System:
The UNT Digital Library
Production of Pi-Mesons in Lead by High Energy Proton Bombardment
Our knowledge of the properties of mesons and their interactions with nuclei has come from two sources. Studies of cosmic ray phenomena provided the earliest information. The discovery that mesons may be produced artificially by bombardment of nuclei with radiations from high energy accelerators has, on the other hand, made it feasible to undertake a wide variety of investigations under more controlled conditions than is possible in cosmic ray experiments. In such experiments mesons have been produced by high-energy protons, alpha-particles and neutrons.
Date:
January 10, 1950
Creator:
Weissbluth, Mitchel
System:
The UNT Digital Library
Homogeneous Reactor Project Quarterly Progress Report [for] Period Ending May 15, 1951
Technical report outlining the reconstitution of the Homogeneous Reactor Experiment Project (HRE) as the Homogeneous Reactor Project. Report covers the need for a broader developmental program to establish the feasibility of obtaining the potential advantages of homogeneous reactors for the production of fissionable materials and power. Details the ultimate objective of the ORNL program to provide the technical information required to determine the feasibility of a full scale plutonium power producing homogeneous reactor. [From Summary]
Date:
October 10, 1951
Creator:
Swartout, J. A.; Secoy, C. H. & Winters, C. E.
System:
The UNT Digital Library
Chemistry Division Quarterly Progress Report for Period Ending March 31, 1951
Quarterly technical report including reports on chemistry of source, fissionable, and structural elements, nuclear chemistry, radio-organic chemistry, chemistry of separations processes, chemical physics, radiation chemistry, and instrumentation. [From Abstract]
Date:
May 10, 1951
Creator:
Lind, S. C.; Boyd, G. E. & Bredig, M. A.
System:
The UNT Digital Library
Physics Division Annual Progress Report, March 10, 1959
Report containing reports from the Physics Division of the Oak Ridge National Laboratory that cover a wide variety of subjects.
Date:
June 10, 1959
Creator:
Oak Ridge National Laboratory. Physics Division.
System:
The UNT Digital Library
Army Package Power Reactor: Description and Supplement
Various hazards associated with the APPR-1.
Date:
November 10, 1955
Creator:
unknown
System:
The UNT Digital Library
Conversion of UNH to UO3 : Terminal Report
Feasibility of conversion of uranyl nitrate to uranium trioxide by the continuous addition of concentrated uranyl nitrate solution to hot, agitated UO3 powder.
Date:
January 10, 1951
Creator:
Maness, R. F. & Clagett, F.
System:
The UNT Digital Library
Reactor Physics, Quarterly Progress Report, August-October, 1953
"A thorough analysis of the data obtained on depleted, natural, and enriched uranium lattices has been made. Consideration of the possible sources of discrepancies between theory and experiment has led to a suspicion of the calculated thermal neutron diffusion lengths. A series of diffusion length measurements in non-multiplying lattices of lead-cadmium alloy has been initiated. An analysis of some early exponential experiments on lattices proposed for a neutron production reactor has been carried out in order to determine whether experimental results on these more complicated structures are consistent with the analysis carried out for the "clean" lattices."
Date:
December 10, 1953
Creator:
Laubenstein, R. A.
System:
The UNT Digital Library
Regional reconnaissance and prospecting in northeast Grants District, New Mexico
Surveying the northeast Grants district for possible uranium occurrences
Date:
July 10, 1953
Creator:
Mirsky, Arthur
System:
The UNT Digital Library
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.
System:
The UNT Digital Library
Periodic Radiation Survey. Section II. 4182-EFPH. Second Performance. Core I, Seed 1. Test Results DL-S-231 (T-612394)
The purpose of the survey was to determine the radiation level in the Turbine Generator Services Building, around the Fuel Handling Canal, in the limited access areas of the reactor plant containers and on the boiler container roofs during plant operation. The test was performed with the plant at approximately 100 per cent power with three loops (1A, 1B, and 1C) in service. The radiation levels of the areas surveyed with a few exceptions were essentially background (.03 MR/HR). These exceptions were the Auxiliary Chamber and the limited access areas between the containers. The highest radiation level obtained in the survey was >2500 MR/HR at the reactor chamber walkway.
Date:
November 10, 1959
Creator:
Ritz, William C.
System:
The UNT Digital Library
Radiation Damage to Vacuum Chamber Walls
"The problem of radiation derange to the walls of two types of vacuum chamber for the 6 Bev Cambridge Electron Accelerator was studied. Radiation damage may arise from the synchrotron radiation and from electrons which are not accepted at injection. The synchrotron radiation produces a large amount of secondary x radiation which is isotropic, and therefore complicates the arrangement of internal shielding. The 20 Mev electrons from the lines cannot be attenuated by shielding. It is concluded that dosages of the order of 10/sup 7/ rad/day near the inflector are unavoidable. This would exceed the allowable dosage for a tube made by cementing a stainless steel liner to supporting ribs, and also exceed the test dosages (so far as we know) for alumina ceramics."
Date:
September 10, 1957
Creator:
Stearns, Brenton
System:
The UNT Digital Library
Radial Vibrations in Short, Hollow Cylinders of Barium Titanate
The mathematics has been developed for the determination of the radial coupling coefficient for a hollow cylinder of electro-strictive material whose length is small compared to its outside diameter.
Date:
December 10, 1954
Creator:
Stephenson , C. V.
System:
The UNT Digital Library