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High-Energy Electron Scattering and the Charge Distribution of Selected Nuclei

Description: Experimental results are presented of electron scattering by Ca, V, Co, In, Sb, Hf, Ta, W, Au, Bi, Th, and U, at 183 Mev and (for some of the elements) at 153 Mev. For those nuclei for which asphericity and inelastic scattering are absent or unimportant, i.e., Ca, V, Co, In, Sb, Au, and Bi, a partial wave analysis of the Dirac equation has been performed in which the nuclei are represented by static, spherically symmetric charge distributions. Smoothed uniform charge distributions have been ass… more
Date: October 1955
Creator: Hahn, Beat & Ravenhall, D. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Equation of State of Water on the Thomas-Fermi Model

Description: Two methods are described for extending the Thomas-Fermi model of a compressed atom to molecules or mixtures of the type Z Zn. The methods are applied to H2O at zero temperature to determine pressure and internal energy as functions of the density, the position of the protons relative to the oxygen nucleus, and the electrostatic potential distribution within the molecule.
Date: October 24, 1955
Creator: Latter, A. & Latter, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Media for Air Cleaning and Air-Assay Purposes : Final Summary Report for Period Ending December 31, 1954

Description: Work was completed on the high-temperature, high efficiency air filter. Technical assistance was given at a large-scale, privately financed run of an all-glass medium. Full-size filers have been produced in quantity and are offered by manufacturers; it is considered that commercial manufacture has been established. A survey was made of air sampling practices at 37 laboratories. Analysis of the survey results indicated that 22 different kinds of air-sampling filer media were in use among the lab… more
Date: October 3, 1955
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Loss of Level in D/P Cell Reference Chambers. Section I. First Performance. Core I, Seed 1. Test Results DL-S-279 (RNI-23)

Description: The purpose of the test is to determine the reason for the decreases in the liquid levels of the reference chambers serving the reactor plant remote liquid level indicators. The remote gages and the local liquid level gages agreed closely for the Reactor Plant Component Cooling Water Expansion Tank and the Coolant Discharge and Vent System flash tank and blow-off tank. There appeared to be no loss of water from the D/P cell reference chambers for these two systems over the period of the test. … more
Date: October 30, 1959
Creator: Gentry, George
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Finite Amplitude Stress Waves in Rocks

Description: Production of new surface area by fracturing of rock behind an explosive-initiated high amplitude wave is probably an important mechanism for energy absorption in the region near n explosion in rock. Explosive-initiated high amplitude pulses in cylinders of three different rocks and two concretes were studied to determine the pulse amplitude need to damage the cylinders. An average high amplitude wave velocity of half the elastic wave velocity was observed in a porous limestone. Elastic theory … more
Date: October 1, 1959
Creator: Grine, Donald Reaville
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Use of an Electronic High Vacuum Pump on Various Types of Mass Spectrometers

Description: A commercially available electronic high vacuum pump has bee tested on various types of mass spectrometers used at the Oak Ridge Gaseous Diffusion Plant. Considerable savings in operating and maintenance costs can be realized from the use of this pump. the greatest savings result from the elimination of the cold trap required for the diffusion pump whether it is cooled by liquid nitrogen or by mechanical refrigeration. additional savings results from the fact that the pump currently is usually … more
Date: October 9, 1959
Creator: High, R. D. & Schede, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Physical Metallurgy of Uncommon Metals

Description: The progress report covers the work carried out during the first year 1958-59 in the department of metallurgy at M.I.T. under the supervision of Professors John T. Norton and Robert E. Ogilvie. A brief summary of the work that has been completed and in some cases still continuing is given. The work has been listed under the following general headings: (1) Diffusion studies in the uranium-niobium system, (2) X-ray detection of cladding defects, (3) Precision X-ray stress analysis of uranium and … more
Date: October 15, 1959
Creator: Norton, John T. & Ogilvie, Robert E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Low Speed Wind Tunnel Tests of Several Airfoil Sections Through 360 ° Angle of Attack

Description: A series of two-dimensional airfoils were run through a complete 360 ° angle of attack range to determine their low-speed force characteristics. The airfoils were chosen in an attempt to vary as many parameters (such as thickness, camber, thickness distribution, etc.) as possible with the limited number of shapes that time permitted. All airfoils tested had lift curves with two distinct stalls and quite similar drag curves between 0 ° and 90 ° angle of attack. The highly cambered sections devel… more
Date: October 14, 1954
Creator: Reed, James F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Comparison of the Neutron Yields from Low-Voltage Sources

Description: The description of the thick-target neutron yields from the D(t,n)He4 and the D(d,n)He3 reactions is calculated as a function of the energy of the bombarding particles. For 60-kev particles the ratio is 108. I increases to 168 at 100 Kev and to 194 for 120-kev particles. A qualitative discussion of the yields from various deuterium target leads to the conclusion that the greatest yield would come from the target which has the lowest stopping cross section per deuterium atom.
Date: October 6, 1954
Creator: Cooper, John N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Studies of Reactor Containment : Monthly Technical Progress Report No. 29

Description: The report covers work performed during the period September 1, 1959 through September 30, 1959. The general objectives of the program of "Studies of Reactor Containment" are to accomplish theoretical and experimental investigations of the loads to which external containment structures for nuclear reactors are subjected in the vent of a violent incident at the reactor core, the evaluation of methods of reducing that loading, and the study of the response of and design criteria for external con… more
Date: October 23, 1959
Creator: Zaker, T. A. (Thomas Allen)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Determination of Flux Levels in Neutron Detector Wells. Section II. First Performance. Core I, Seed 1. Test Results DL-S-242, T-641311

Description: The purpose of the test was to determine the neutron flux level in a BF3 counter well during the second performance of DL-S-225. The measured activity of the irradiation brass bolt was due entirely to the radioactive decay of Zn65. The thermal neutron flux in the BF3 counter well during the second 1000 hour run was calculated to be 2.5 x 10(9) neutrons/cm2 sec.
Date: October 30, 1959
Creator: George, John R. & Cappola, M., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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