This report contains seven different configurations of support blocks.

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The assessment (by ground testing) of effects of mechanical actions, thermal and chemical interactions, and nuclear reactions upon tue safety of nuclear power sources that are intended for aerospace applications is discussed. Progress in general studies and in testing of SNAP-9A and -10A is reviewed. (T.F.H.)

Before a reactor is launched into a satellite orbit about the Earth, the hazards to the population must necessarily be considered in the event that the reactor re-enters the Earth' s atmosphere and possibly impacts with the ground. Analytical and experimental efforts for calculating these potential hazards as they apply to SNAP-2 and -10A are described. (auth)

An analytical chemistry program was conducted to determine total U-233 and U-232/U-233 ratio in the irradiated thorium oxide. This report summaries the results for samples exposed for one month and briefly describes the analytical procedures.

The analytical results reported herein are a description of the nuclear environment produced by the Aerospace System Test Reactor at General Dynamics/Ft. Worth in the LRP Mechanical Radiation Test No. 901.

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A description of the digital readout and drive portion of the Advanced Reactivity Measurement Facility II is presented along with the philosophy used in selecting the system block diagram and components, accuracy considerations, and a preliminary evaluation of performance and usability. The presentation discourages duplicating of the equipment; advantage should be taken of the opportunity to improve upon it. To this end guideposts are provided as well as a documentation of those aspects of the design that are considered worthy of duplication. (auth)

Experiments on betatron oscillation frequency, beam life times, multiturn injection, longitudinal bunching, acceleration through the transition energy, energy spread in the accelerated beam, beam stacking procedures, effects of clearing neutralizing ions away from the stacked beam, and instability of the stacked beam are reported. (D.C.W.)

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The design and fabrication of Al-clad Pu folis and slugs, enriched and depleted U foils, and depleted U blanket slugs for breeding-gain studies with the plutonium core IV are described. The construction and dimensions of the irradiation baskets and thimbles are shown, and the special core fuel, blanket, and thermocouple rods are described. (D.C.W.)

This report, from the Chemical Processing Department at HAPO for August 1963, discusses the following: Production operation; Purex and Redox operation; Finished products operation; maintenance; Financial operations; facilities engineering; research; employee relations; and weapons manufacturing operation.

Progress in chemical technology is reported under 24 topics. Separate abstracts were prepared for each topic. (M.C.G.)

The Consolidated Nuclear Steam Generator H consists of a pressurized water reactor, a steam generator, and a pressurizer combined in a sirgle pressure vessel. The design of the 66000 shaft horsepower system is presented, together with basic plant irformation for designs of 15000, 22000, and 30000 shaft horsepower. The economics, safety characteristics, and operational procedures of the plant are also discussed. (D.C.W.)

A general expression for the expansion coefficients connecting the Stark (parabolic coordinates) and field-free (spherical coordinates) wave functions for hydrogen is obtained. Numerical tables of these coefficients through principal quantum number n = 10 are given. In the course of the derivation several new identities involving generalized hypergeometric functions are deduced. Applications to radiative attenuation, particularly in connection with the ALICE experiment, are discussed. It is concluded that previous calculations have considerably underestimated the degree of radiative attenuation experienced by the ALICE beam, thus decreasing the amount of Lorentz dissociation expected in the plasma region. (auth)

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The use of liquid metals introduces solid-liquid metal interactions which are not primarily electrochemical, as found in systems involving aqueous raedia. The corrosion of solid metals by these coolants occurs as the system attempts to attain chemical equilibrium. The mechanisms by which this can occur are (a) dissolutioning, which results from the solubility relationships between the solid and liquid metals, and (b) impurity reactions, resulting from the presence of interstitial impurities, such as oxygen, nitrogen, and carbon, in the solid and liquid metals. The manner in which dissolutioning proceeds gives rise to many types of attack ranging from simple solution to mass transfer of one or more constituents of an alloy. Some variables which influence the rate and type of dissolutive corrosion are: temperature, flow velocity, surface area to volume ratio, surface condition of solid metal, temperature gradient, and number of materials in contact with the same liquid metal. The refractory metals tungsten, molybdenum, tantalum, and niobium, as well as other high-melting bodycentered cubic metals, have excellent resistance to dissolutive attack by the alkali liquid metals at high temperatures. However, there are numerous occasions when it is desirable to utilize the unique capabilities of several structural materials in the same …

A spherical component is frequently supported by a hemispherical lightweight cellular core which is in turn supported by a flexible elastic support shell. Design information is given on computing the normal and shear stresses in the core as well as circumferential and meridional stresses in the flexible support shell. A set of graphs is given showing the ratio of these stresses for the case of a flexible support shell to the corresponding maximum stress for the case of a rigid support shell, plotted against the meridional angular coordinate of the hemisphere. Two dimensionless geometrical and material parameters appear as variables in these graphs. A second set of graphs to be used for obtaining displacements of the flexible shell with respect to the supported sphere are also plotted in this manner. For computing the maximum stresses in the shell or core, a graph is given showing the maximum value of the stress ratio plotted against a dimensionless material-geometrical parameter. (auth)

By taking into consideration temperature differences between the glovebox atmosphere and the liquid, it was possible to make density measurements in gloveboxes by the hydrostatic weighing method with monobromobenzene as a liquid with an accuracy of plus or minus 0.005 g/cm/sup 3/. This is an improvement by an order of magnitude over the prior state. This accuracy allows structural changes to be detected in thorium--uranium and thorium--plutonium alloys. (auth)

This document describes the capabilities of the ETS-1 I & C systems as designed by Edgerton, Germeshausen and Grier, Inc., under the technicaly direction of REON.

The design of the Experimental Gas-Cooled Reactor fuel assemblies is described and a brief outline of the experimental heat transfer and fluid dynamic studies and mechanical testing is given, and he results of their application to the fuel element analysis are shown. The failure criteria are presented, the hot-channel factors are described, and the expected fission-gas pressure buildup within the elements is discussed.

These criteria delineate objective, bases, and functional requirements governing preparation of design of the bauxite-sulfuric acid feed facilities installed in the 183-KE and KW Buildings. These facilities produces the chemical coagulant used in the treatment of Columbia River water in the K Area water plants and thus replaces the existing liquid alum feed systems used for this purpose.