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Experimental Fabrication of a Lightweight Control Rod

Description: Abstract: "The possibility of fabricating a lightweight control rod from one of several high cross-section materials was investigated. The major effort was directed toward the development of a titanium-clad rod containing a composite core of 25 weight per cent Gd2O3 in a matrix of titanium. Experimentation on both subscale and full-scale control-rod cores showed that the fabricating behavior of the two was not analogous. To roll the full-scale core successfully, it was necessary to lower the ox… more
Date: July 1, 1952
Creator: Saller, Henry A.; Stacy, J. T. & Keller, D. L.
Partner: UNT Libraries Government Documents Department
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A Continuous Fission Product Separation Process; I. Removal of the Rare Earths (Lanthanum Cerium, Praseodymium, and Neodymium) From a Typical Liquid Bismuth-Uranium Reactor Fuel by Contact with Fused LiCl-KCl Mixtures

Description: Technical report investigating the distribution of rare earth elements between a liquid bismuth-uranium solution and fused KCI-LiCi mixtures. Report warrants further research on the liquid bismuth-uranium-fused salt system due to the benefit of continuous fission removal processes.
Date: July 1, 1951
Creator: Bareis, D. W.
Partner: UNT Libraries Government Documents Department
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Note on Possible Stabilization Due to Coupling

Description: Abstract: "By a simple illustration it is pointed out that, conceivably, the real coupled character of the general magnetohydrodynamic equations may lead to much slower instability growth rates, if not stabilization, than predicted from the linearized set of equations."
Date: July 1, 1955
Creator: Greyber, Howard D.
Partner: UNT Libraries Government Documents Department
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Pilot-plant studies of mercury-catalyzed dissolving of aluminum-jacketed fuel elements

Description: The objective of the experimental studies reported herein was to demonstrate the laboratory-developed mercury-catalyzed dissolving procedure on a pilot-plant scale by conducting a series of test dissolutions of aluminum-jacketed, unirradiated uranium in the 150-gallon downdraft type semiworks dissolver in 321 Building. It was desired to establish: (1) the effect of the larger-scale operation on time cycle; (2) dissolution rates of aluminum and uranium, (3) controllability of the reactions, and … more
Date: July 1, 1954
Creator: Bradford, J. L. & Adler, K. L.
Partner: UNT Libraries Government Documents Department
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H. W. Laboratory manual: 100 Area section

Description: The purpose of this manual is to present a Hazard Breakdown of all jobs normally encountered in the laboratory work of the three sections comprising the Analytic Section, Metallurgy and Control Division of the Technical Department. A Hazard Breakdown is a careful analysis of any job in which the source of possible dangers is clearly indicated for each particular step. The analysis is prepared by individuals who are thoroughly familiar with the specific job or procedure. It is felt that if the h… more
Date: July 1, 1950
Partner: UNT Libraries Government Documents Department
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Quarterly Progress Report (April 1 to June 30, 1950)

Description: This is the second of a series of Quarterly Progress Reports. While most of the departments have summarized their work or used a form comparable to abstracts, the Chemistry Department has given both abstracts and complete reports on its work. The major part of the progress in the Reactor Science and Engineering Department is being presented simultaneously in a separate classified report. There are reports from the following departments: (1) physics department; (2) instrumentation and health phy… more
Date: July 1, 1950
Creator: Laboratory, Brookhaven National
Partner: UNT Libraries Government Documents Department
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Tests on Models of Nuclear Reactor Elements - Head Losses in Core Sub-Assemblies

Description: Losses have been determined for flow through models of various proposed core sub-assemblies as part of a study of the elements of a nuclear reactor. Six core sections and two? axial blanket sub-assemblies have been compared on the basis of drop in piezometric. head or pressure drop. The core sub-assemblies are composed of an entrance nozzle, a lower axial blanket section, the core section, an upper axial blanket section, and a short section for the handling lug. The four parts of the sub-assemb… more
Date: July 1, 1957
Creator: McNown, J. S.; Yagle, R. A. & Spengos, A.
Partner: UNT Libraries Government Documents Department
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Specifications for Critical Mass Control Redox Plant - E-metal

Description: The specifications given in this document cover the processing of E-Metal. E-Metal is defined as natural uranium which has been enriched with U-235 to a concentration of 0.95 percent. The higher U-235 content makes the E-Metal more reactive than either natural or irradiated natural uranium. This difference in reactivity places a definite limit on the amount of massive metal that can be charged to the present Redox dissolvers. Once the slugs have been dissolved, the processing of E-Metal is esse… more
Date: July 1, 1959
Creator: Harmon, M. K.
Partner: UNT Libraries Government Documents Department
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Basic Research and Particle Accelerators

Description: This report addresses the basic research and particle accelerators.
Date: July 1, 1954
Creator: Lawrence, E.O. & Smith, Lloyd
Partner: UNT Libraries Government Documents Department
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Delayed Light Emission in Green Plant Meterials:Temperature-Dependence and Quantum Yield

Description: The discovery of the delayed light emission of plant materials by Strahler and Arnold in 1951 has stimulated a good deal of interest in this rather remarkable property. The emitted light has been shown to be due to an electronic transition between the first excited singlet state of chlorophyll and the ground state. At room temperature, a luminescence is observable from about 0.01 seconds to several minutes after excitation. Thus, the electronic transition cannot be rate-determining and the proc… more
Date: July 1, 1958
Creator: Tollin, G.; Fujimori, E. & Calvin, M.
Partner: UNT Libraries Government Documents Department
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The Effect of D20 on Survival of Mice with Ascites Tumor

Description: The effect of deuterium oxide (D{sub 2}O) on the survival of mice inoculated with Ehrlich's mouse ascites tumor has been studied. Mice maintained on 25% and 30% D{sub 2}O drinking water showed an improved survival time of about 6 days whereas 40% D{sub 2}O drinking water had no effect on survival time. The effect is interpreted in terms of inhibition of tumor cell division and systemic toxicity.
Date: July 1, 1957
Creator: Hughes, Ann M.; Tolbert, Bert M.; Lonberg-Holm, Karl & Calvin,Melvin
Partner: UNT Libraries Government Documents Department
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Research and Development in the Field of Thorium Chemistry and Metallurgy. Monthly Progress Report for May 16 Thru June 15, 1955

Description: An internally heated chlorinator using a bed of graphite as a resistor element in contact with molten salt was shown to be feasible. An extended run was completed in an electrolytic cell demonstrating the feasibility of continuous operation. Other studies are reported on chlorination of thorium oxycarbonate and physical metallurgy evaluations of the Th produced. (T.R.R.)
Date: July 1, 1955
Creator: Wyatt, J.L.
Partner: UNT Libraries Government Documents Department
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A Glass Still for the Evaluation of Column Packing With Uranium Hexafluoride

Description: The operating holdup and flooding rates of uranium hexafluoride, n-heptane, and perfluorodimethylcyclohexane have been studied in a glass still filled with 1/8 inch nickel Heli-Pak. The flooding rates of the latter two substances are 46.0 and 48.0 cc./min. respectively and the flooding rate for uranium hexafluoride, calculated from the Bertetti equation, is 42.9 cc./min. The operating holdups for these three substances on Heli-Pak were measured at several throughput rates up to the flooding rat… more
Date: July 1, 1951
Creator: McGill, R. M.
Partner: UNT Libraries Government Documents Department
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INFORMATION, COMMUNICATION, AND LANGUAGE

Description: A lecture delivered at Sandia Corp., Albuquerque, N. Mex., June 18, 1958. A discussion of information exchange theory is presented. Semantics in communications are examined, and the use of symbols in thinking and presentaion are discussed in some detail. (J.R.D.)
Date: July 1, 1959
Creator: Hammer, P.C.
Partner: UNT Libraries Government Documents Department
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PROGRESS RELATING TO CIVILIAN APPLICATIONS DURING JUNE 1959

Description: 8 5 F 5 ; 9 6 9 7 4 / 1 < =15% cold-worked Zircaloy-2 at 290, 345, and 400 deg C is being continued. Research to identify factors affecting irradiation-induced volume changes in graphite by means of sink- float density measurements was oontinued. The program to simulate conditions after a postulated loss-of coolant incident within the PRTR was completed. Lapsed-time motion pictures are being made through a windowed autoclave of the corrosive action of high-temperature water on defected Zircaloy… more
Date: July 1, 1959
Creator: Dayton, R.W. & Tipton, C.R. Jr.
Partner: UNT Libraries Government Documents Department
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Technology of Non-Production Reactor Fuels Reprocessing Budget Activity 2790. Quarterly Report

Description: Sawing studies were made using a dry function blade for cutting Zircaloy taking. An off-gas filtration system including a rotoclone and a filter assembly was installed to permit studying of the particulate material generated during the friction cutting operations. Studies of mechanical techniques for safety processing the Na or NaK alloy reservoirs present in some non-production fuels have continued. Stainless steel-clad swaged U0/sub 2/ rods and stainless steel- clad U- 10 wt.% Mo alloy rods w… more
Date: July 1, 1959
Creator: Cooper, V. R.
Partner: UNT Libraries Government Documents Department
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