Operation and maintenance procedures for 30 megawatt heat exchanger and steam generator for sodium cooled reactor system.

From introduction: This report covers the results of a study of a mobile irradiator for fruit grown in California.

Abstract: "Production of [rho]'s and [omega]'s in [pi]- + p and p + [letter p with a bar over it] interactions is discussed. The [rho] is presumably a J = 1-, 1 = 1 state and thus can decay into 2[pi]'s via a strong coupling. The [omega] is probably J = 1-, 1 = 0 which can also decay into 2[pi]'s via electromagnetic coupling. A theoretical description of this situation is presented in terms of coupled time-dependent Schroedinger equations which mix [rho] and [omega] states that are assumed to be isotopically pure at the time of production. The interference between the two resonances was found to have the effect of extending the 2[pi] spectrum toward the [omega] mass."

A reinforced-concrete steel-plate-lined vault and steel vault door were exposed to a nuclear detonation (shot Priscilla, about 37 kt, balloon suspended, at 700 ft) at the predicted 75-psi peak incident pressure level (1150 ft from Ground Zero). The vault was designed by the ultimate-strength theory to utilize the additional strain energy available in the elastoplastic and plastic ranges. Flexural and thrust capacities were determined, and shear capacity was computed. It was established that above-ground structures can be designed and constructed to survive the pressure levels experienced by this structure. The vault and door provided adequate blast and thermal protection for normal usage, and the structure was adequate to resist overturning and excessive sliding under conditions of the test.

Abstract: Progress is reported on research and development tasks under the Program Plan for Engineering Support and Development of Army Pressurized Water Reactor Power Plants, Contract AT(30-1)-2639, during the six months' period October 1, 1061 to March 31, 1962.

From introduction: "This brief paper deals with the subject of radial temperature differences for heat transfer to fluids flowing through concentric annuli under the following conditions and assumptions: a. constant heat flux; b. fully-established turbulent flow; c. heat transfer through inner wall only; d. physical properties independent of temperature."

Abstract: Distribution coefficients have been measured for the partition of metal ions between cation exchange resin and acetone-water-hydrochloric acid solutions. the differences in distribution coefficients of metal ions are greater in acetone-water media than in aqueous media of the same hydrochloric acid concentration. Using distribution coefficient data, conditions for column separations of mixtures can be selected. Column separations of metal ion mixtures can be effected by eluting with acetone-water-hydrochloric acid solutions of different compositions. Successful separations of a number of mixtures are reported.

This technical report discusses an infrared study of AlH3-2N(CH3)3 while the compound was in its gas phase. This investigation was then extended to include the Raman spectrum observed in liquid trimethylamine.

"The influence of compressive creep on the self-diffusivity of α-iron has been measured in the temperature range of 742-885°C. the diffusivity is enchanced in proportion to the strain rate, but this dependence decreases with increasing temperature. The magnitude of the strain is relatively unimportant in this connection. Strain rates from 0 to -2 x 10¯³ sec¯¹ were investigated with a corresponding increase in diffusivity up to 3 x 10³ times. The results are analyzed in terms of vacancy diffusion and the excess vacancies introduced during deformation. It is concluded that grain boundaries are the main vacancy sinks in polycrystalline iron and that the vacancy lifetime is therefore dependent on the grain size."

Some numerical calculations have been done which permit the deduction of many properties of the synchrotron oscillation problem. For the presentation of the numerical results, it is useful to review the formulation framework to which the results are to be fitted. These are worked out for an arbitrary circular accelerator. The algebra woud have to be modified slightly to include straight sections but the numerical results are still useful.

From introduction: The purpose of this survey was to document the pre-event and post-event condition of all existing surface facilities within a 10-mile radius of ground zero for Project GNOME.

Study of the effects on Zircaloy-2 radiation corrosion of a high concentration of excess H2SO4 in a uranyl sulfate test solution using an in-pile loop experiment.

One of a series of experiments to test the radiation corrosion of Zircaloy-2 and other possible reactor construction materials in UO2SO4 solutions under various radiation intensities, temperatures, solution compositions, and velocities of flow past specimens.

From abstract: "Electrical measurements have been made on CaB6, SrB6, BaB6, YB2, YB4, YB6, and YB12 for the purpose of testing models of the electronic structure of the boron atoms in the four boride types represented. The compounds CaB6, SrB6, and BaB6 were found to be semiconductors. The Hall coefficients of YB4 was also measured, but could not be interpreted because the free electron theory does not provide a theoretical value for comparison with experiment. The results are in agreement with the models proposed."

Abstract: An easy to use method for evaluating Bessel functions is given. This method is applicable to the one-dimensional, 2-group, 2-region diffusion problem, and is designed primarily for use on a small or medium sized digital computer. ...FORTRAN programs based on this method are presented together with the output obtained from an IBM-1620 digital computer.

This report contains a listing of the bound-proton kernels for neutron scattering which were calculated in conjunction with the USAEC Control Rod Materials Program.

From foreword: This final report summarizes the results of a project to develop a machine calculation code program using the Monte Carlo technique to compute radiation flux or dose rates from radioisotope sources.

Report issued by the Atomic Energy Commission over computer-aided calculations for effective multiplication factors in cylinders. The methods, and applications of the calculations are discussed. This report includes tables, and illustrations.

"Progress is reported on Phase II of a program for the development of a mixed fission product fueled thermoelectric generator. Materials studies are described in which bonded assemblies of bismuth telluride were life tested up to 3000 hours at 350 to 400 deg F hot junction temperature. Data were too inconsistent to define any satisfactory long-life bonding process. Further work is needed to eliminate the process variables. Insulation studies aimed at determining the thermal conductivity of various insulations with different fill gases under reduced pressures are described. Opacified aerogel powder appears to be very promising as an insulation medium for a diffuse heat source. A full- scale simulated test generator aimed at proving out the concept of a diffuse heat source for power generation is described. Progress on the construction of this electrically heated generator and its thermoelectric power converter is related.

"The properties of the muon have been studied for many years and much is now known about this particle. Very accurate measurements of its mass and magnetic moment gave values in the relationship predicted by the Dirac equation and quantum electrodynamics. Experimental evidence indicating that the muon spin is 1/2 is obtained from comparison of precession measurements of the muon bound in certain mesic atoms and from observation of muonium precession. To all appearances, one would conclude that the muon behaves as an unstable electron, but as 206.76 times the mass of that electron. A study of the interaction of the muon with nuclear matter may throw more light on this problem of muon-electron equivalence."

From Introduction: "A pilot plant embodying these ideas, in an unusual method of softening, was designed and constructed by the Texas Division of The Dow Chemical Company. Two 4,000 gallon per day vapor compression evaporators were furnished for the testing program bu the Bureau of Yards and Docks of the United States Navy. This report summarizes the results of the testing program."

Data processing program written to compute the neutron dose received by individuals exposed in a nuclear excursion.

From abstract: "The effects of oxygen on some mechanical properties of niobium were studied over the composition range of 20 ppm to 2400 ppm oxygen. The tensile properties of samples of these compositions were studied over the temperature range from room temperature to 500°C. Hardness values were obtained at room temperature only. The following observations and conclusions were made during these studies: 1. Oxygen additions to high purity niobium increase both the yield and tensile strengths of niobium at all temperatures investigated. As the temperature is increased above 250°C the effect of the first 200 ppm of oxygen has more influence than further additions on these strengths of niobium. 2. Strain aging behavior is observed. The peaks in the tensile strength versus temperature curves can be predicted with reliability by the relationship proposed by Cottrell, 3. A mechanism is proposed which, along with Cottrell's segregated atmosphere mechanism, can account for the serrated stress-strain curves obtained. This mechanism offers an explanation of the occurrence of serrations at room temperature, and the mechanism is composition dependent."

Measurements were made of the capacity of pre-treated Victorian brown coal for removing trace quantities of Sr2+ and Cs+ at pH 8.0 and 9.5 in the presence of various concentrations of Ca2+. At 20 p.p.m. Ca2+ breakthrough was immediate.