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Penetration of the Gut Wall by Intestinal Bacteria After X-Irradiation. Progress Report June 1, 1955 to January 31, 1956

Description: Factors affecting bacterial invasion from the intestinal tract in x-irradiated mice were investigated. P. morganii was administered in the drinking water on the seventh day following exposure to 600 r total-body x-irradiation. Mortality increased from about 40% following irradiation alone to about 62% after radiation and bacterial challenge together. No effect on mortality was produced by immunization with P. morganii prior to irradiation or injection of spleen homogenates from normal mice shor… more
Date: 1956
Creator: Hatch, M. H.
Partner: UNT Libraries Government Documents Department
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Flammability of Hydrogen-Air-Nitrogen Oxide Mixtures. Final Report

Description: Limit-of-flammability test were conducted on various hydrogen-air-nitric oxide-nitrous oxide mixtures at one atmosphere pressure and at 28 degree C. The data used to define the limits of flammability of the above mixtures are presented in tabular and graphic form and are used to construct a flammable volume in a regular tetrahedron in which the apices are pure H2, air, NO and H2O.
Date: 1956
Creator: Scott, Frank E. & Zabetakis, Michael G., 1924-2005
Partner: UNT Libraries Government Documents Department
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Emission Rate of Fission Products from a Hole in the Cladding of a Reactor Fuel Element

Description: It is assumed that when a hole appears in the cladding of a reactor fuel tube the fission products in the space between the fuel and the cladding will diffuse towards the hole. There they are swept away by the flow of steam past the hole. The process of diffusion is assumed to be governed by the ordinary diffusion equation with the boundary condition that the density of the fission products is zero at the surface of the hole. The diffusion equation is solved for the case of steady-state emissio… more
Date: July 26, 1956
Creator: Helstrom, Carl W.
Partner: UNT Libraries Government Documents Department
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The X-ray Spectroscopy of Solids

Description: This technical report is based on a a paper presented in October 1955 before the Symposium of the American Society for Metals held at Philadelphia. This is by no means an exhaustive review; selection of the material discussed was made according to the author's interests. Some of the work reported here was assisted by the Office of naval Research and the Atomic Energy Commission through contracts with the Ohio State University Research Foundation.
Date: January 1956
Creator: Shaw, Charles Henry, 1908-
Partner: UNT Libraries Government Documents Department
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Precision Beta-Ray Spectroscopy : Termination Report

Description: Detailed information on the radiations associated with several even-even isotopes has been obtained. In some instances enough information has been gathered to allow construction of skeleton energy level diagrams for the isotopes. Activities studied were obtained from pile irradiation of pure odd-even natural isotopes and included Dy160, W182, Sm152, Gd152 and Gd154. Details of the work done on and results obtained for these isotopes are reported in section 3. Some analytic and experimental stud… more
Date: April 17, 1956
Creator: Fowler, C. M.
Partner: UNT Libraries Government Documents Department
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Prebunching by Velocity Modulation in Linear Accelerators

Description: Methods of prebatching the electron beam by velocity-modulation techniques prior to injection into a linear accelerator are discussed. A particular method (i.e., bunching at the injection energy) is analyzed in detail for one- and tw0-cavidy bunching. The physical design f a single cavity prebuncher is given for a modulation voltage 10 percent of the injection voltage and a drift space of 40 cm.
Date: April 1956
Creator: Smårs, E. A.
Partner: UNT Libraries Government Documents Department
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A Study of the Mechanisms of Heat Treatment of Zirconium-Base Alloys : Status Report, July 1, 1955 - February 29, 1956

Description: The kinetics of transformation of zirconium binary alloys is being pursued. Mechanical property variation as a function of transformation if also being investigated. Zirconium-tin and zirconium-titanium alloys transform very rapidly when quenched from the beta field. These alloys have, generally speaking, been demonstrated to be not amenable to heat treatment in the normal sense of the word. Eutectoid alloys, principally zirconium-molybdenum alloys, have shown a definite response to heat treatm… more
Date: March 15, 1956
Creator: Domagala, R. F. & Levinson, David W.
Partner: UNT Libraries Government Documents Department
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The Validity of the Statistical Theory of Pressure Broadening

Description: The statistical theory of pressure broadening is developed for any interaction law in which the potential energy is inversely proportional to some power of the distance between the molecules, including cases in which the forces change sign. This note is intended to prove two propositions: A. When a spectral line is broadened by single impacts of perturbing molecules and the half-width of the line is delta infinity, the statistical theory of broadening is applicable provided delta infinity . R … more
Date: April 3, 1956
Creator: Margenau, Henry, 1901-1997
Partner: UNT Libraries Government Documents Department
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Standardization of Calibration Wells

Description: A 500 mg radium source was installed in the completed calibration well and it was then experimentally calibrated by means of ionization chambers. The radiation from the well was compared with the radiation from a standard source in a low-scatter situation. Use of the well brought about a change in the geometry of calibration which was found to result in a small change in the calibration of the high range of the CP.
Date: January 6, 1956
Creator: Donaldson, E. E.
Partner: UNT Libraries Government Documents Department
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An Ultrasonic Method for Bond Testing Reactor Fuel Elements

Description: Ultrasonic testing has been investigated as a possible non-destructive method for checking the bond integrity of certain type fuel elements. Equipment has been developed to inspect experimental fuel elements for various research programs. Circuits have been devised to discriminate the size of defects and to map the areas which are unbonded.
Date: November 27, 1956
Creator: Worlton, D. C.
Partner: UNT Libraries Government Documents Department
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Prelimiary Analysis of the Plutonium Recycle Program Reactor Shield

Description: It is the purpose of this report to present the preliminary analysis of the PRPR shield. The results reflect a considerable degree of conservatism because of uncertainties that were present in the preliminary estimates of neutron and gamma fluxes incident on the shield.
Date: December 22, 1956
Creator: Wood, D. V. & Weeks, J. L.
Partner: UNT Libraries Government Documents Department
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Successive Generations Disadvantage Factors

Description: A study has been made of the theoretical values of Disadvantage Factor as predicted by the "Method of Successive Generations." The Disadvantage Factors were calculated by evaluating the ratio of the surface flux to the average flux throughout the rod for natural uranium rods of various sizes.
Date: December 20, 1956
Creator: Lee, M. T.
Partner: UNT Libraries Government Documents Department
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Alternate Process Water BY-Pass Systems for CG-558 Pumps

Description: The purpose of this report is to present the analysis and test data for the Three Nozzle By-Pass and to present the results of the study of alternate designs which would permit high head loss without cavitation.
Date: December 20, 1956
Creator: Love, William J.
Partner: UNT Libraries Government Documents Department
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