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SNAP 10FS-3 was the first flight-qualified SNAP reactor system to be operated in a simulated space environment. Prestart-up qualification testing, automatic start-up, endurance period performance, extended operation test and reactor shutdown are described as they affected, or were affected by, overall reactor performance. Performance of the reactor control system and the diagnostic instrumentation is critically evaluted.

This report analyses the crude oils from many oilfields within the U.S.

A previously reported cation exchange process for the recovery of Pu from sump water was studied in order to improve the procedure. The flowsheet calls for adjustment to 0.03M HNO/sub 3/, the addition of NH/sub 4/HSO/sub 3/ for Pu reduction, the addition of Al/sup 3 +/ to complex F/sup -/, followed by passage of the solution through a column of Dowex 50W, X-8 resin. Distribution coefficients were measured between the resin and synthetic sump solutions under a variety of possible simulated flowsheet conditions. By far the highest distribution coefficients were obtained with Pu(III) without the addition of Al. Results with Pu(IV) varied from borderline to unsatisfactory depending on conditions. It is concluded that the process will be satisfactory if the Al addition is eliminated. (JGB)

The ''handbook'' density for LiAlO/sub 2/ is 2.55 g/cc. Recent data show that it should be revised to 2.62 g/cc. In the future densities reported as percent of theoretical should be based on 2.62 g/cc as being 100 percent. Values quoted on this basis will be more realistic. In order to avoid confusion it will be necessary to state which number percent of theoretical density are based upon--that is, ''2.62 g/cc = 100 percent,'' or ''2.55 g/cc = 100 percent.'' For the convenience of those working directly with the material, a conversion chart is included along with a table which gives density (g/cc) versus percent density based on 2.62 g/cc.

The design of a Phase II dummy hydraulic core for the CSE reactor simulator is described. The core will be a scale model having features typical of PWR or BWR reactor cores, and will include control rods and associated support mechanisms, fuel elements, a thermal shield, top and bottom core guide and support plates, and flow baffles. The core and simulator vessel will be instrumented to provide measurement of temperature, static and differential pressures, forces on core components, and rarefaction wave pressures during high temperature, high pressure blowdown studies.

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Lithium aluminate and lithium silicate powders (Lithium Corporation of America) and Zero-X pellets (Ferro Corporation) have been analyzed spectrochemically, by x-ray diffraction, and for lithium, carbon, and water content. These data are presented along with some important physical constants of the materials. Aluminate and silicate powders are incompletely calcined, containing up to 3 wt percent residual lithium carbonate. They have lithium contents that are sub-stoichiometric by as much as 20 percent. They have moisture contents up to 7 wt percent. Aluminate powders contain a variable mixture of the ..cap alpha.. and ..gamma.. allotropes. Silicate powders have the single lithium meta silicate structure. Average particle size of the powders ranges from 75 to 100 microns. Zero-X pellets are calcined completely, and have stoichiometric lithium content, about 105 ppM water, and a density of 1.83 g/cc. Crystal structure is a solid solution of silica in ..beta..-Spodumene.

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The amino acid and lipid analysis on blood and liver and the amino acid analysis on urine gave irregular values for each determination. Therefore, the average values which were presented in the 1966 Technical Progress report (C00-1449-2) were not considered valid and were not submitted for publication. However, experiments on the in vivo conversion of 75 Se-labeled selenite-Se to urinary metabolites led to the observance of an unknown metabolite. This metabolite, which was different from the ordinary selenium analogues of sulfur, was designated as "U-1" (C00-1449-3). The use of the 59 Fe was involved in the study of the anemia of chronic selenium toxicity. The findings because of the labeled iron led to the conclusion that the anemia was from massive hemolysis (C00-1449-3).

The IBM 2740 and 2741 are IBM's versions of a printer-keyboard designed primarily for point to point communication. The 2740 is the more glorious one with numerous options. The. 2741 is as simple as possible with just one major option. Neither of these units approaches the complexity or number of options available on a 1050 system.

Kinetic approaches to the description of point defect clustering phenonema are reviewed. High divacancy mobility is shown to complicate both analytic and computer solutions except in the special cases in which the number of vacancy sinks is pre-established by some special characteristic of the metal under investigation. Interstitial clustering is complicated by the presence of vacancies. An approximate solution has been found for interstitial clustering kinetics in the presence of impurities or other nucleating faults under the assumption that equilibrium among the clusters prevails and that the vacancies resulting from neutron damage are primarily in clusters rather than randomly distributed

We present "exact" calculations, by the semiclassical method, of vibrational excitation of a harmonic diatomic molecule A-B, in its ground vibrational state, upon collinear collision with an atom C. Results are compared with those of first-order quantum mechanical time dependent perturbation methods and those of purely classical methods.

Fifty-one female cottontails were collected during their first pregnancy of the breeding season in 1964. The reproductive performance of these animals has been completely evaluated and the adrenal glands incubated. Chromatographic separation and quantitation have been carried out on the majority of the adrenal incubates.

The Atomic Energy Commission contract AT(11-1)-1468, for which this report is presented helps to support a program of nuclear physics research at the University of Arizona. This program utilizes a 2 MV Van de Graaff generator and associated facilities of the University. In addition, construction of a building to house a 6 MV Van de Graaff is underway. In the following sections, progress during the past year is reported, and a proposal for operation during the coming year is presented.

A concept for interactive time-sharing of a major computer system is developed in which satellite computers mediate between the central computing complex and the various individual user terminals. These techniques allow the development of a satellite system substantially independent of the details of the central computer and its operating system. Although the user terminals' roles may be rich and varied, the demands on the central facility are merely those of a tape drive or similar batched information transfer device. The particular system under development provides service for eleven visual display and communication consoles, sixteen general purpose, low rate data sources, and up to thirty-one typewriters. Each visual display provides a flicker-free image of up to 4000 alphanumeric characters or tens of thousands of points by employing a swept raster picture generating technique directly compatible with that of commercial television. Users communicate either by typewriter or a manually positioned light pointer.

The motivation for an interactive computer system is to obtain fast response for program generation, debugging, and running. The human user retains control of the computing process, and can modify program, change parameters, and correct errors as required during solution of the problem. An interactive system contains a man-computer interface as a distinguishing characteristic. This interface is not present in the more common, batch process, computer systems.

Recently there has been a great surge of interest in almost-exact sum rules for the magnetic moments of nucleons. (By almost-exact we mean: exact to all orders in the strong couplings but only the lowest order in electromagnetic and weak couplings.) Besides providing a means for calculation of the magnetic moments on the same level as the calculation of GA/GV by Adler and Weisberger these sum rules, taken together with the Adler-Weisberger sum rule, constitute a useful tool for investigating the nature of the dynamical approximations that underlie higher symmetry schemes.