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Progress Report May 16- November 15, 1955

Description: Progress report of the Brookhaven National Laboratory Nuclear Engineering Department providing updates on various projects, experiments, and other work. This report includes a summary of scholarly output from the reactor physics division, the applied chemistry and chemical engineering division, and metallurgy division.
Date: April 8, 1957
Creator: Brookhaven National Laboratory
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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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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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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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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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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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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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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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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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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