Technical Report Archive & Image Library (TRAIL) - 33 Matching Results

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Fission Product Release from UO2 and by High Temperature Diffusion and Melting in Helium and Air.

Description: The experimental demonstration of fission product release from over heated reactor fuel is necessarily subject in many respects to the arbitrary conditions imposed by the experimenter. Since an almost infinite latitude exists in the choice of materials, atmospheres, gas, velocities, temperatures etc., some allowance for an extrapolation to alternate conditions is definitely in order. The conditions imposed in this study are best described as those most likely to maximize fission product release… more
Date: February 8, 1961
Creator: Parker, G. W.; Creek, G. E. & Martin, W. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analog Study of the Reference Design of the Gas-Cooled ORR Loop No. 1

Description: A stimulation study of the deign as of June 1960 of the gas-cooled ORR Loop No. 1 was made using the ORNL analog computer. The proposed method of temperature control is evaluated, and the dynamic behavior of the loop for accidents and component failures is presented in graphical form.
Date: November 8, 1960
Creator: Ball, S. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preliminary Design of a 10-Mw(t) Pebble-Bed Reactor Experiment

Description: The objectives of this study have been to examine the problems of the pebble-bed reactor concept and to conceive a design of a facility for investigating the feasibility of this type of reactor. The design must provide for adequate leaktightness of the contaminated-gas system and adequate maintenance of contaminated components, the most vital feasibility questions of the concept.
Date: May 8, 1961
Creator: Fraas, A. P.; Carlsmith, R. S. & Corum, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Compact Control Rod Drive Study For a Boiling Water Reactor in a T7 Tanker

Description: 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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Summary Listing of Subcritical Measurements of Heterogenous Water-Uranium lattices Made at Hanford

Description: Exponential and critical approach type measurements have been made to determine the critical mass, material buckling, and in a few cases, the extrapolation length for the lattices. This report attempts to list all measurements on water-uranium heterogenous lattices made to date at Hanford. All lattices were water moderated hexagonal arrays loaded with uranium of enrichments up to 3.15.
Date: June 8, 1960
Creator: Lloyd, R. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Irradiation Effects in Cladding Materials

Description: Limitations on the service life of a fuel element imposed by degradation of the fissile core during irradiation have been a matter of great concern. Limitations imposed by changes in cladding properties during irradiation should be evaluated with equal care. Zircaloy-2, stainless steel, and aluminum alloys have been irradiated in the form of cladding on metallic and ceramic fuel elements. Several aspects of fuel behavior as influenced by these clad materials will be discussed. All observations … more
Date: April 8, 1960
Creator: Minor, J. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Critical Pressure Ratio for a Nozzle with Two-Phase Fog Flow

Description: In many cases of analysis of two-phase flow in systems, considerable computation or program time could be saved if the critical pressures ratio were known. If a reservoir or plenum pressure is fixed, the usual computational procedure involves the assumption of several critical pressures and the generation of several momentum terms to find the applicable critical pressure ratio and thereby the critical flow. The formulation of an equation of state make it possible to compute critical pressure ra… more
Date: March 8, 1960
Creator: Love, W. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Glove Box Integrity Study

Description: The amount of dry air or inert gas supplied to a "one pass" glove box ventilation system is proportional to the glove box inleakage. Most glove boxes in the 234r5 Building are equipped with sundry attachments, each contributing to the inleakage. No individual leak rate date is available for these auxiliary components in the "as installed" condition. Nor is the effect of time upon the leak rates known. Knowledge of these values, or at least an indication of the order of magnitude of the leakage … more
Date: March 8, 1960
Creator: Ciccarelli, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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100-N Decontamination Facility Design Guide.

Description: Space has been reserved near the southeast corner of the 100-N Area for the 122-N Decontamination Facility. Previous correspondence between Burns and Roe, Inc and General Electric bae discussed various facilities which might be needed in the building. The concepts of the decontamination processes are under active development by research groups at Hanford. At present, there are several workable processes known; each one has one or more fairly serious drawbacks.
Date: March 8, 1960
Creator: Bainard, W. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Preliminary Evaluation of Chlorine for Use as a Gas Cooled Reactor Safeguard*

Description: A coolant line rupture during operation of a high temperature gas cooled graphite moderated reactor would present a serious hazard. The reactor would immediately depressurize and a great deal of air would be introduced into the coolant stream. As the air passed over the graphite moderator a runaway oxidation reaction would probably ensue unless an adequate safety system were available. This investigation was designed to evaluate chlorine as a reactor safeguard to be used to control a runaway re… more
Date: March 8, 1960
Creator: Dahl, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reflections on Pools

Description: A pool of material in steady-state turnover is a collection of identical molecules from which deletions are made at a constant rate, along with simultaneous addition of new identical molecules at the same rate, the total pool size remaining unchanged. It is of interest to consider what may be expected in the way of such pools among the various chemical species which can be isolated from biological systems. It is clear what the model requires, i.e. any molecule belonging to the pool must have as… more
Date: November 8, 1963
Creator: Steele, Robert
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Nature of the Hydrogen Bond in the Bifluoride Ion

Description: We undertook the present diffraction study of the bifluoride ion in sodium acid fluoride and the present refinement of the earlier data on potassium acid fluoride with the hope of obtaining more accurate information not only on the position of the hydrogen atom, but also on the vibrations of the ion. We felt that it would be through the combination of information on the motions of the system from diffraction and spectroscopic studies that the question of the symmetry of the ion could be settled… more
Date: November 8, 1963
Creator: Ibers, James A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Long Coil Measurements Satisfy Two-Dimensional Field Equations

Description: The amount by which the field of a magnet bends the path of a charged particle is proportional to the integral of Btds along the trajectory. Instead of making tedious point by point measurements of B in magnets and performing the integrations numerically, it has been found useful to measure directly, by using a search coil whose winding consists of long and narrow turns extending through the magnet gap from z1 and z2 in the direction of the trajectory. It should be noted that the integral Iy is… more
Date: March 8, 1963
Creator: Beth, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hot-Atom Chemistry of the Solid StateL its History, Current Status and Future Prospects viewed in Relation to the Planning of Chemical Research Programs for New Scientific Establishments Centered about a Research Reactor

Description: The History, Current Significance and Status of the Field Hot atom chemistry, like many other fields of scientific research, can trace its origin to a single experiment, that of Szilard and Chalmers, performed in 1934. This is true even though recoil effects had been known and used for a long time. Almost immediately Szilard and Chalmers put their discovery to practical use: they employed the recoil effect in ethyl iodide as a neutron detector and observed the γ,n reaction in beryllium. The ing… more
Date: March 8, 1963
Creator: Harbottle, Garman
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Personnel Dosimetry of Very High Energy Radiation

Description: Before discussing personnel monitoring of high energy radiations, it is appropriate to comment briefly on two basic methods of dosimetry applicable to such situations. In the first of these methods, one measures the rad dose in air with a tissue-equivalent ionization chamber that is operated with enough voltage on the collecting electrode to insure saturation even when the radiation is concentrated in short pulses, as is frequently the case. The linear energy transfer (LET) spectrum of the radi… more
Date: March 8, 1963
Creator: Cowan, Fredrick P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Neutron Sources - Cross Sections and Angular Distributions

Description: It is appropriate that a conference devoted to the interactions of fast neutrons with nuclei begin with a survey of the available sources of such neutrons. Since its discovery in 1932, the neutron has provided a highly useful tool in attempts to understand the nucleus, and the types of nuclear phenomenon which could be studied and the nature of the results obtained are very dependent on the sources available.
Date: March 8, 1963
Creator: Goldberg, Murrey D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Numerical Solutions for Diffusion in a Sphere, Cylinder, and Plate

Description: In calculating diffusion coefficients for gases diffusing from solids, the numerical solutions tabulated by Darken and Gurry, were found to lack the required precision, and the intervals between the arguments were too great to permit precise interpolations. Consequently the diffusion equation solutions of interest (diffusion from a sphere, cylinder, and plate, for the condition that the concentration of the diffusing species initially uniform) were re-evaluated. Computer programs for the three … more
Date: March 8, 1963
Creator: Auskern, Allan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Theoretical Analysis of the Exponential Experiment in Natural Uranium

Description: Methods of calculating the "Snell Experiment" (the exponential experiment in natural uranium) are examined. It is found that integral transport theory is required for accurate predictions. The effect of spatial transients upon measured quantities is studied and it is found that experiments have not been done in a large enough mass of uranium to achieve an asymptotic neutron distribution. However deviations from the asymptotic values of integral quantities are not large and corrections are calcu… more
Date: March 8, 1963
Creator: Michael, Paul
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Structure of HCrO2 and DCrO2

Description: A neutron diffraction study of polycrystalline HCrO2 and DCrO2 (chromous acid) is described. Intensity data from the two substances were refined together by the least-squares method, with the constraint that the Cr-O distance be the same in the two substances. Estimates of individual contributions to multiple peaks were included in the least-squares refinement through the use of a non-diagonal weight matrix. The O-D-O bond is found to be asymmetric, O-D = 0.96 ± 0.04 A, O...O - 2.55 ± 0.02 A. T… more
Date: March 8, 1963
Creator: Hamilton, Walter C. & Ibers, James A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Human Radiation Injury - a Correlation of Leukocyte Depression with Mortality in the Japanese Exposed to the Atomic Bombs

Description: The method of collection and the subsequent analysis of the hematological data accumulated by the Joint Commission of the Investigation of the Early Effects of the Atomic Bomb in Japan, have been described. In the present investigations, an additional analysis of the hematological data was made to investigate a possible relationship between leukopenia and the mortality rate within the first nine weeks following the bombings. It has been frequently observed in laboratory animals exposed to ioniz… more
Date: March 8, 1963
Creator: Jacobs, George J.; Lynch, Francis X.; Cronkite, Eugene P. & Bond, Victor P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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On the Transfer of Heat to Fluids Flowing Through Pipes, Annuli, and Parallel Plates

Description: Nusselt numbers have been calculated for heat transfer to fluids flowing through annuli under conditions of uniform heat flux and fully established velocity and temperature profiles. The following cases were considered: (a) laminar flow, (b) slug flow, (c) turbulent flow with molecular conduction only, and (d) turbulent flow with both molecular and eddy conduction. These Nusselt numbers were determined for two conditions: heat transfer from the inner wall only and heat transfer from the outer w… more
Date: January 8, 1963
Creator: Dwyer, O. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Resistance Measurements To 400 Kilobars

Description: A modification of the Bridgeman anvils is described. This modification permits studies to be made to a load of 400 kbars, about twice that previously available.
Date: November 8, 1960
Creator: Vaisnys, Juozas; Stromberg, Harold & Jura, George
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Influence of Isotopic Composition on the Maximum in the Cosmic Ray Energy Spectra

Description: "The previously found maximum in the cosmic radiation energy spectrum is discussed, and the possibility that it arises in part from a misinterpretation of the data due to oversimplifying assumptions about the composition of the beam is examined. The importance that lack of recognition of isotopic composition may have is pointed out, and it is clear that this importance is strongly dependent on the measurements made and on the cut-off rigidity."
Date: May 8, 1961
Creator: Appa Rao, M.V.K. &
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Comparison of Radiation-Induced Graft Copolymerization Untilizing Electron Accelerators and Isotope Sources as Radiation Initiators

Description: "Graft polymers were made by Co60 mutual irradiation of mixtures of styrene and methyl acrylate in contact Teflon. These graft copolymers were analyzed by infra-red absorption and their composition determined. The composition of the graft copolymer formed from styrene and methyl acrylate was different from that which is predicted by the copolymer composition equation."
Date: May 8, 1961
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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