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Effect of Temperature and Reactivity Changes in Operation of the Los Alamos Plutonium Reactor

Description: The operation of the Fast Reactor is considered in terms of normal equilibrium conditions and normal shut-down. The proposed loading, control rod adjustment and subsequent "floating" operation are discussed. Safety devices and interlocks are described. Temperature and reactivity changes are examined with respect to various system failures, phase changes, and "flashing" of the reactor. Slow changes due to faulty slug cooling are also considered. The calculations were initially based upon 10 kw o… more
Date: May 28, 1948
Creator: Hall, David B. & Hall, Jane H.
Item Type: Refine your search to only Report
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Safety Tests on Hand Stacking of U-235 Cubes

Description: From abstract: "Critical assembly tests have been made on the Pajarito Universal Machine to determine the safety limits of handstacking cubes of 95% U-235 in spherical geometries preparatory to making critical assemblies of U-235 in an "infinite" tuballoy tamper. The U-235 cubes were stacked as pseudospheres in a cavity at the top of a tuballoy block 12" high and 8" on a side, and the assembly tamped by locating it inside a doughnut shaped water tank whose tamping effect is equivalent to the ta… more
Date: October 11, 1948
Creator: Josephson, V.; Young, D. S. & Dike, R. S.
Item Type: Refine your search to only Report
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Correlation of Chemical Analyses on Graphite Bars and Test Pile Results

Description: From abstract: "The chemical analyses of graphite test bars obtained from National Carbon Company and the analyses performed by the Hanford Works Laboratories Division do not correlate significantly with the test pile results, nor do the chemical analyses obtained from National Carbon Company agree with those done in the Handford Works Laboratories. Chemical results obtained at Hanford on samples taken lengthwise from individual bars correlated significantly with the individual test pile result… more
Date: February 5, 1948
Creator: Lane, J. J.
Item Type: Refine your search to only Report
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Extrapolation Chamber Measurements of the Beta Ray Surface Dose from Uranium

Description: From purpose: "The purpose of the work reported here is to measure the beta ray surface does rate from uranium metal and to develop equipment and techniques for measuring the surface dose rate from other materials. It is also the intention to extend the measurements to dose rates delivered at various depths in tissue."
Date: 1948
Creator: Leap, H. E., Jr. & Whipple, G. H., Jr.
Item Type: Refine your search to only Report
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Neutralization of HNO₃ in Redox ICU an IAW Streams

Description: The following memorandum outlines the procedures used on the neutralization of HNO3 in redox ICU and IAW streams, and the factors influencing their choice. The procedures involve a) hexone removal by evaporation in the presence of a retardant, b) destruction of the retardant, c) nitric acid elimination by boiling with aluminum and d) concentration of the remaining solution by evaporation.
Date: December 10, 1948
Creator: Curtis, M. H.
Item Type: Refine your search to only Report
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Biology Seminar : methods of assaying for plutonium in biological materials

Description: From introduction: "Since plutonium is manufactured at the Hanford Works, a study of its effect on biological materials is important. To determine the amount of plutonium deposited in a biological sample, it is necessary to have an accurate method for extracting plutonium from these samples. Some of the different methods for plutonium assay are reviewed and given in this paper."
Date: November 1948
Creator: Case, A. C.
Item Type: Refine your search to only Report
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The Isolation and Properties of Curium

Description: From introduction: "The discovery of element number 96, curium, was realized by the preparation and identification of the isotope Cm-242 by G. T. Seaborg, R. A. James and A. Ghiorso by cyclotron bombardment of Pu-239 with helium ions."
Date: July 28, 1948
Creator: Werner, Louis Bernard
Item Type: Refine your search to only Report
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The Acute Radiotoxicity of Injected Na²⁴ for Mice and Rats

Description: The following report describes the results from studies based on the toxicity and metabolism of radioactive substances derived from uranium fission. Rats and mice were administered radioactive sodium and reactions and changes were studied.
Date: April 15, 1948
Creator: Finkle, R. D.; Snyder, R. H.; Kisieleski, Walter E.; Teresi, J.; Broido, A. & Tompkins, P. C.
Item Type: Refine your search to only Report
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The Production of Leukopenia by Chronic Irradiation of the Abdominal Viscera of the Cat

Description: This report describes an experiment that produced leukopenia in cats through irradiation. It elaborates that irradiated cats had significant decreases in levels of leukocytes, polymorphonuclear leukocytes, and lymphocytes. The methods and specific results of the experiment are also given and discussed.
Date: 1948
Creator: Adams, William S. & Lawrence, John S.
Item Type: Refine your search to only Report
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Apparatus for injection of animals with dangerous amounts of hard beta and gamma emitters

Description: Report detailing the development of an apparatus for injection of animals with dangerous amounts of hard beta and gamma emitters. The development of this apparatus was necessitated by the extended period of time that experimenter's had to hold syringes containing radioactive material.
Date: 1948
Creator: Anthony, Davis S. & Norris, William P.
Item Type: Refine your search to only Report
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