UNT Libraries Government Documents Department - 23 Matching Results

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Chromosomal Aberrations in a Natural Population of Chironomus Tentans Exposed to Chronic Low-Level Environmental Radiation

Description: The salivary gland chromosomes of Chironomus tentans larvae collected from White Oak Creek, an area contaminated by radioactive waste from the Oak Ridge National Laboratory, and from six uncontaminated areas were examined for chromosomal aberrations. White Oak Creek populations were exposed to absorbed doses as high as 230 rads per year or about 1000 times background. Chromosomal maps were constructed to make a general comparison of the banding pattern of the salivary chromosomes of the C. tent… more
Date: January 29, 1964
Creator: Blaylock, B. G.; Auerbach, S. I. & Nelson, D. J.
Item Type: Refine your search to only Thesis or Dissertation
open access

The Development of Uranium Carbide as a Nuclear Fuel: Final Report

Description: From introduction: This is the final report on uranium carbide studies sponsored by the United States Atomic Energy Commission and performed by United Nuclear Corporation at its New Haven Research Laboratories during the period from May 1959 to January 1964. The work was part of the Commission's Fuel Cycle Development Program aimed at lowering the cost of nuclear power by improving fuel cycle technology. At the inception of this program in 1959, some work was in progress on uranium carbide. Lit… more
Date: February 29, 1964
Creator: Crane, J. & Gordon, E.
Item Type: Refine your search to only Report
open access

LONGITUDINAL RESISTIVE INSTABILITIES OF INTENSE COASTING BEAMS IN PARTICLE ACCELERATORS

Description: The effect of finite resistance in the vacuum-tank walls on the longitudinal stability of an intense beam of particles in an accelerator is investigated theoretically. We show that even if the particle frequency is an increasing function of particle energy, the wall resistance can render the beam unstable against longitudinal bunching. In the absence of frequency spread in the unperturbed beam, the instability occurs with a growth rate that is proportional to (N/{sigma}){sup 1/2}, where N is th… more
Date: September 29, 1964
Creator: Neil, V. Kelvin & Sessler, Andrew M.
Item Type: Refine your search to only Article
open access

Prestressing a Two-Layer Pressure Vessel by Controlled Yielding of the Inner Layer

Description: A method is presented for designing a two-layer pressure vessel wherein contact between the layers is produced by controlled yielding of the inner vessel by internal pressure. The amount of prestress depends upon the dimensions of the vessel, the properties of the material of construction, and the prestressing pressure. The method takes into account the actual stress-strain curve of the material and satisfies the rules of plastic flow with work hardening. (auth)
Date: January 29, 1964
Creator: Schneider, R.W.
Item Type: Refine your search to only Report
open access

Production Test IP-550-I, Supplement A routine monitoring for moderator oxidation rates

Description: The objective of this supplement to Production Test IP-550-I is to include the K reactors in the program for routinely monitoring graphite oxidation rates. This supplement does not initiate a new program; it continues one which has been in existence for some time. Oxidation of the reactor graphite weakens its structural capacity. At some degree of oxidation, sufficient loss of strength will occur to significantly affect the ability to maintain and operate the reactors. For this reason it is nec… more
Date: April 29, 1964
Creator: Baars, R. E.
Item Type: Refine your search to only Report
open access

Report to the Working Committee of the Fuel Element Development Committee from the General Electric Company, Hanford

Description: Discussed topics on current reactor production fuels include: uranium core production data, uranium specifications, induction heat treating, fuel performance, residual stress measurements, AlSi process development, thoria program, and self-support program. The N-reactor fuels production is discussed. And concerning N-Reactor fuels development, process development and irradiation experience are discussed.
Date: December 29, 1964
Creator: Minor, J. E.; Lewis, M. & Stringer, J. T.
Item Type: Refine your search to only Report
open access

Self-Diffusion of Beryllium in Unirradiated, Cold-Pressed and Sintered Beryllium Oxide

Description: Diffusion of beryllium-7 through polycrystalline unirradiated specimens of BeO was studied as a preliminary step to a study of diffusion in irradiated material. Beryllium-7 was deposited on one end of cylindrical specimens by exchange and adsorption from aqueous solution. The depth of penetration perpendicular to the surfaces of deposition was determined after annealing the specimens at pre-determined conditions. A simple lapping device of high precision was developed to determine penetration d… more
Date: January 29, 1964
Creator: de Bruin, H. J. & Watson, G. M.
Item Type: Refine your search to only Report
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