A critical studies program for the Enrico Fermi Atomic Power Plant was run with the ZPR-III fast critical facility. The objectives of this program included determination of the U enrichment required for criticality, the effect of minor variations in core and blanket composition, reactivity coefficients, control and safety rod characteristics, power distribution, spectral indices, and the reactivity worth and wave shape of the oscillator rod. The experimental program was separated into two phases. The first phase involved investigatlona of a clean assembly, which was a simplified and homogenized core and blanket geometry constructed for ease of experimental manipulation and analysis. The second phase involved experiments on the engineered, or as-designed, core. This assembly included such engineering details as control and safety rod channels, core end gaps, and a precise reconstruction of the core outline. This provided detailed information on worths of control rods and fuel subassemblies, power distribution, and the effect of variations in core and end-gap dimensions. The application of critical experiment data to the determination of the Enrico Fermi reactor characteristics has established the U/sup 235/ enrichment for the fuel alloy, worths of fuel subassemblies, and the B/sup 10/ enrichment for the control and safety rods. In addition, …

Correlations were made on Zircaloy-2 Izod impact data and Charpy-V drop- weight data. Subsize Izod impact specimens of various geometries and notch configurations and standard ASTM Charpy-V specimens were prepared from bar and plate stock and tested. Drop-weight tests were also conducted and the NDT (nil- ductility transition) temperature was determined for 1/2 in. Zircaloy-2 plate. Results show that the impact properties of Zircaloy-2 are sensitive to hydrogen concentration, specimen and notch geometry, and specimen and notch orientation. No subsize specimen design was found which yielded impact curves similar to those obtained with standard Charpy-V notch specimens, but designs suitable for in- pile testing were found. It was found that Zircaloy-2 has the property of arresting a moving crack even at temperatures of --100 deg C and lower. (P.C.H.)

Thermal-stress and strain-fatigue analyses of the MSRE fuel and coolant pump tanks were completed for determining the quantity of coollng air required to obtain the maximum life of the pump tanks and to determine the acceptability of the pump tanks for the intended service of 100 heating cycles from room temperature to 1200 deg F and 500 reactor power-change cycles from zero to 10 Mw. A cooling-air flow rate of 200 cfm for the fuel pump tank was found to be an optimum value that provided an ample margin of safety. The coolant pump tank was found to be capable of the required service without air cooling. (auth)

A publications list, incorporating a subject index was compiled by machine methods. The publications covered are those originating at Argonne but published elsewhere. The list is arranged alphabetically by author's names and covers the period from July 1, 1961 through June 30, 1962. The subject index is a key word in context index using the title. (M.C.G.)

Bubble size measurements in the foam column showed that a spinnerette with 50 mu holes gave a nearly normal distribution of bubbles sizes while a coarse fritted glass gas sparger had a tail of large bubbles which did not fit the normal curve. A set of equations solvable by a finite difference technique are presented which completely describe the irreversible reaction rate of H/sub 2/ or CO with a fixed bed of CuO pellets. Radiation damage tests are in progress to evaluate plastics for the Transuranium program. All dejacketed SRE Core I U fuel slugs were reeanned and shipped to Savannah River. Installation of the shear-leach complex is complete. The shortest practical length into which a tubular fuel element assembly may be sheared appears to be 1/2 in. Tests showed difficulties with shearing assemblies containing tube sheets. The stepped shear blade used for Mark I prototype fuel elements produced chunks of porcelain filled Yankee prototypes. Flow capacities of nozzle plate pulsed columns operated under dilute Purex fiowsheet conditions were determined. Fuel pins made with compacted sol-gel ThO/sub 2/ and U/sup 235/ were irradiated without difficulty to 17,000 Mwd/t. Routine operation of the rotary denitrator to give ThO/sub 2/ product was …

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Employing a modified arc-melting technique, homogeneous cylinders of stoichiometric UC were consistently produced. The cylinders ranged in size from 0.25-in. dia. by 1 in. long to 0.375-in. dia. by 3 in. long. The top 10% of nearly all cylinders did, however, contain shrinkage voids that could not be eliminated. UC buttons previously prepared by arc melting the elements were placed over a graphite-mold cavity, but in contact with Cu in an Aratmosphere arc furnace. When the UC charge became fully molten, it dropped into the cavity and solidified instantaneously. The measured densities of the arc-cast cylinders were 99.8% of theoretical with compositional limits of plus or minus 30 ppm C. The study was initiated because of a need for pure stoichiometric UC radiation specimens and a need for nonstoichiometric specimens containing controlled C concentrations. Therefore, emphasis was placed on purity control of the starting material and furnace atmosphere, rate of power consumption, accuracy of weighing procedures, and arc-melting procedures. Variations in either of these preparational steps would result in an undesirable pr oduct. (auth)

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The Connally Newsletter issue number 16 lists a number of campaign news updates, requests for support, and talking points against the opposing Republican Party in general and Jack Cox in particular.

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Monthly newspaper from Whitney, Texas that includes news and information about Lake Whitney along with advertising.

Monthly newsletter from Dallas, Texas published by the Stamps Quartet Music Company that includes news and information concerning gospel music along with advertising.

This volume contains the charts and backup material presented to the Atomic Energy Commission and Air Force on June 14, 1962 concerning General Electric's Nuclear Materials and Propulsion Operation (formerly the Aircraft Nuclear Propulsion Department), during its work on the development of a nuclear power plant for manned aircraft.

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Daily newspaper from Cuero, Texas that includes local, state and national news along with advertising.

Daily newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.

A transistorized automatic counting and recording system was built for the determination of foil-activation data. Output data are on IBM-printed and punched cards which may be processed by a high-speed computer. The computer produces tabular and graphical output, as well as punched data cards which may be used for further processing such as curve fitting. The foil-activation data are taken from one to six chains operating in unison (normally samplechanger, detector, amplifier, analyzer, scaler, and readout chains). Circuitry and logic of the system were greatly simplified by the use of a one-second interval marker which initiates and terminates each step of the cycle in full seconds rather than frictionai seconds. The equipment includes provision for optional preset counting interval or preset count accumulition. There are sensing devices to record the kind of measurement made (whether foil activation or background count), plus manual switches which may also specify how individual measurements will be processed later by the computer, on a card-by-card ind scaler-by-scaler basis. Data are processed by an IBM-704 computer programmed to produce plotted traverses as weil as tabular data. From 25 to 100 foilactivation measurements per minute may be processed, depending on the number of entries per card and …

Initiation of reactions by intermittent irradiation is frequently encountered in physical, chemical, and biological systems. Mathematicai expressions for transient and steady state concentrations of reactive species in these systems are useful for predicting performance and for research purposes. A general method of formulation of the intermittent irradiation problem is presented herein, and illustrative solutions are obtained for radioactive decay chains and for the rotating sector method. 20 references. (auth)

A bibliography containing 201 references is presented along with tables summarizing various experimental results. (J.R.D.)

Equipment was built where critical-flow data above 100 psia were obtained and a theory developed that predicts the experimental values satisfactorily. Theoretical expressions for the specific volume, void fraction, and slip ratio for critical steam-water mixtures have been derived. Therefore, the first complete analytical solution was made possible for estimating the critical two-phase flow rate, including slip between the two phases. The pressure profiles for runs at critical flow were all characterized by extremely steep pressure gradients near the throat; however, the pressure gradients are definitely finite and approach absolute maximum values, these depending only upon critical flow rate and quality. Sonic velocities are not achieved in critical two-phase flow of steam--water mixtures. Therefore, the phenomenon of two-phase critical flow differs significantly from that of single-phase critical flow. A new theory has been postulated in an effort to explain the mechanism of two-phase critical flow. The geometry of the system to be investigated has apparently no effect on the critical-flow phenomenon for the diameters and lengths of pipes used in this work. The experimental data obtained compare favorably with previous investigations in the range of variables where such a comparison is possible. The Homogeneous Flow Model'' is found to be …

One-hundred and forty-six ejecta measurement stations encircled ground zero at eight radial distances ranging from 373 to 1707 meters. The twenty-four sampling lines were spaced at fifteen-degree intervals. Data presented were recovered from stations located at radial distances of 640, 853, 1067, 1280, and 1707 meters. An attempt will be made to recover data at stations located closer to ground zero at a later time. Preliminary analysis of ejecta data indicates that areal density varies inversely as distance raised to the 3.64 power. Circumferential variation of areal density is about a factor of 30 at the 1707 meter radial distance, a factor of 10 at the 1280 meter radial distance, and a factor of 7 at the 853 meter radial distance. Cursory treatment is given to several related subjects, including outer limit of base surge dust deposit, volumetric ejecta densities, locations of natural missiles and impact craters, and the outer limit of ballistic debris. One case of missile damage to a reinforced concrete structure is documented. Raw data are included in the appendix. (auth)

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ABS>A method was derived for computing the ground state properties of a spatially inhomogeneous self-bound system of many particles. This method was used to compute the density and effective potential across a plane surface of nuclear matter in the Hartree-Fock approximation and in an approximation developed by R. D. Puff and P. C. Martin which takes into account certain two- body correlation effects. A general theory of many-particle systems was developed in terms of the n-particle field correlation or Green's functions. It is shown that, for zero temperature and pressure, this treatment may be extended to inhomogeneous systems by repiacing the condition of spatial homogeneity on the Green's functions by appropriate asymptotic boundary conditions. Such conditions were derived for a semi-infinite volume of material with a single plane surface. This development was then applied to nuclear matter in the Hartree-Fock approximation. A solution for homogeneous matter was first obtained. A Gaussian interparticle potential was used, with depth and range fitted to low-energy scattering data. Nuclear saturation was produced by using an admixture of exchange forces. The resulting binding energy per particle was -3.63 Mev, and the interparticle spacing was 1.25 fermi. These may be compared with experimental values of -15.75 …