Neutron Emission by Polonium Oxide Layers (open access)

Neutron Emission by Polonium Oxide Layers

The following report calculates how many neutrons are produced by the O-16([alpha]-n) reaction in a thin and uniform polonium oxide layer.
Date: August 8, 1944
Creator: Argo, M. & Teller, E.
System: The UNT Digital Library
Peeler Extraction of a Synchrocyclotron Beam (open access)

Peeler Extraction of a Synchrocyclotron Beam

This report follows the study of a perturbation in the fringing magnetic field of a synchrocyclotron, using the computed unperturbed orbits of the modified Berkeley 184-inch synchrocyclotron, and introduces the peeler extraction to overcome limitations by using a perturbation that recedes with increasing radial amplitude.
Date: August 8, 1957
Creator: Slobodrian, Rodolfo J.
System: The UNT Digital Library
Reactivity of the Critical Experiment as a Function of Gap Width (open access)

Reactivity of the Critical Experiment as a Function of Gap Width

"The split reactor of the Critical Experiment is analyzed, using a single-energy group-diffusion approximation. A further approximation is introduced in that the two halves of the reactor are treated as a parallelopipeds rather than the half-cylinders. The reactivity of the reactor is obtained as a function of the separation of the two halves, both for the 'standard' uranium concentration and for various greater concentrations."
Date: August 8, 1952
Creator: McLennan, James A.
System: The UNT Digital Library
The Metal-Dielectric Junction of High-Voltage Insulators in Vacuum and Magnetic Field (open access)

The Metal-Dielectric Junction of High-Voltage Insulators in Vacuum and Magnetic Field

From introduction: "This study is concerned with the shape of the electrodes of high-voltage insulator and with the method of joining them to the dielectric. The study is limited to insulators operating in vacuum, with special interest in the cases where strong magnetic fields are present. It is further limited to insulators with the high-voltage electrodes maintained at negative potential. The object of the study was to obtain information that would aid in improving the design of the insulators in two respects. First, to decrease to a minimum the number of charged particles set free which may directly or indirectly cause early failure of the insulator. Second, to increase the voltages at which partial or complete flashovers occur. Therefore, experiments were made to determine the principal phenomenon which have as their primary source the insulator under high electrical stress in vacuum."
Date: August 8, 1945
Creator: Kjofoid, M. J.; Alger, Raymond S. & Graves, D.
System: The UNT Digital Library
Progress Report on Carnotite Studies; Carbonate Process : July 1949 (open access)

Progress Report on Carnotite Studies; Carbonate Process : July 1949

This report for the month of July, 1949 discusses progress regarding work on the carbonate process and the recovery of uranium and vanadium from carbonate liquors.
Date: August 8, 1949
Creator: Brown, K. B. & Coleman, C. F.
System: The UNT Digital Library
Identification and Crystal Structure of Barium Hydrogen Phosphate (open access)

Identification and Crystal Structure of Barium Hydrogen Phosphate

From abstract: "The report describes the complete structure of barium hydrogen phosphate, Ba HPO4, as determined by means of x-ray diffraction. The crystal is orthorhombic, with cell dimensions given by a=5.71 A b=7.05 A c=4.61 A. The calculated density is 4.15gm/cm[^]3 for two molecules in the unit cell. The space group is C[subscript]2v[superscript]7-pmn. The barium, phosphorus, and two sets of oxygen lie in the plane of symmetry. The third set of oxygens are in general positions. Parameters for these atoms have been found, and interatomic distances calculated. The positions of the hydrogens are indicated by the characteristics O-H-O distance (2.58A) between two oxygens."
Date: August 8, 1944
Creator: Mooney, Rose C. L.; Compton, A. H.; Allison, Samuel King, 1900-1965; Stearns, J. C. & Zachariasen, William H. (William Houlder), 1906-1979
System: The UNT Digital Library
The Pressures and Temperatures Developed During the Reduction of Uranium Tetrafluoride by the Bomb Method (open access)

The Pressures and Temperatures Developed During the Reduction of Uranium Tetrafluoride by the Bomb Method

The pressure and temperature cycles developed during the bomb reduction of uranium tetrafluoride by calcium have been determined. Data for the 250, 500, and 1000 gram scale reductions are given, and the apparatus used is described.
Date: August 8, 1951
Creator: Hayward, B. R.
System: The UNT Digital Library
Oralloy Shape Factor Measurements (open access)

Oralloy Shape Factor Measurements

Measurements have been at the Pajarito remote control laboratory to determine the effect of change of shape on system reactivity for oralloy cylinders. Systems tested include cylindrical configurations with various height-to-diameter ratios ranging from slabs to rods. Each system reactivity is referred to that of a sphere in the same tamper. Reactivity tests were made on bare (untamped) Oy configurations, as well as on systems In tuballoy tampers 1.12,1.87,and 8.0 thick. The amount of reactivity change associated with a particular cylinder height-to-diameter ratio is feud to be a function of tamper thickness, and is greatest for very thin tampers.
Date: August 8, 1950
Creator: Josephson, V. (Vernal), 1913-1997; Paine, R. W. Jr. & Woodward, L. L.
System: The UNT Digital Library
Calculation of Geometrical Efficiency of Counters (open access)

Calculation of Geometrical Efficiency of Counters

Let F be the flux of radiation going from a sample of radius R2 to a counter of radius B1 then the emitted intensity of radiation per unit solid angle. Then the flux between two elements of area do1 and do2 will be given by [equation] since [equation] and [equation]. Calculations and equations follow.
Date: August 8, 1952
Creator: Henrich, Louis R. (Louis Richard), 1908-
System: The UNT Digital Library
The Reaction of Tritium and Stopcock Grease (open access)

The Reaction of Tritium and Stopcock Grease

This investigation was begun as a result of a mass spectrometric measurement of two samples of tritium which had been stored for several months in Pyrex glass bulbs using stopcocks. The first of these was originally supposed to be of extremely high isotopic and chemical purity. What was observed at this time was 1.45 H had accumulated, and that tritiated methane, CT4, was also present to the extent of 0.18%. A consistent attempt had been made in this sample to protect the gas from contact with the grease by covering the stopcock with mercury. the second sample was a composite of T2 samples of various degrees of enrichment with an isotopic analysis of 92% T. No protection had been attempted during its storage, and 0.86% CT4 to be present.
Date: August 8, 1950
Creator: McInteer, B. B.
System: The UNT Digital Library
Status Report on the K-4 Magnetic Induction Machine (open access)

Status Report on the K-4 Magnetic Induction Machine

Due to laboratory interest in devices capable of production of high current with short rise times in gaseous discharges (plasmas), an experimental machine has been built and tested to obtain data applicable to the design of a high gradient magnetic induction machine. This machine consists of a condenser type energy storage bank air core coupled to a toroid in which the plasma is produced. It has been used to determine circuit parameters and the effect of these parameters on the plasma.
Date: August 8, 1955
Creator: Baggett, L. M.; Franklin, T. L. & Van Duren, A.
System: The UNT Digital Library
Compact Control Rod Drive Study For a Boiling Water Reactor in a T7 Tanker (open access)

Compact Control Rod Drive Study For a Boiling Water Reactor in a T7 Tanker

The reason for initiating the compact drive study for the T7 tanker was to investigate control rod drive size, location, and removal space requirement factors and select the control rod drive mechanism which would allow optimization of the over-all size of the containment vessel. Approximately twelve mechanical/hydraulic control rod drive arrangements were considered during this study.
Date: August 8, 1960
Creator: Biglieri, N. J.
System: The UNT Digital Library