Previous calculations of line emission were extended to higher density, lower temperature plasmas, typical of those expected in early ablative compression experiments. Emission from Ne-seeded fuel was analyzed in order to diagnose the density and temperature of the compressed core. The Stark/Doppler broadened emission profile is calculated for the H-like Ne resonance line. The observable lineshape is then obtained by time-averaging over expected density and temperature profiles and by including the effects of radiative transfer.

The initial goal was to evaluate the capabilities of current pattern recognition techniques when applied to existing computerized crime data. Performance was to be evaluated both in terms of the system's capability to predict crimes and to optimize police manpower allocation. A relation was sought to predict the crime's susceptibility to solution, based on knowledge of the crime type, location, time, etc. The preliminary results of this work are discussed. They indicate that automatic crime analysis involving pattern recognition techniques is feasible, and that efforts to determine optimum variables and techniques are warranted. 47 figures (RWR)

The specific objectives of the project are to determine on a geographic basis the current and potential USA production capability for grain and grass crops, to perform a preliminary screening of conversion processes, and to perform preliminary technical and economic feasibility analyses. The results obtained to date on biomass production, conversion processes, and data management are reported. (JSR)

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Lawrence Livermore Laboratory (LLL) investigated a new approach for improving the use of geographically distributed computer services used by the U. S. Department of Transportation/Transportation Systems Center (DOT/TSC). The interactive use of these distributed services (a major portion of which are data bases) consumes increasing amounts of the DOT user-analyst's time. The new approach increases accountability, selection capability, usability, and control of distributed services usage. LLL's approach centers these four elements in MODDS, which is an intermediary between the user-analyst and the distributed computer services. This report summarizes the current problems faced by the DOT community, then presents a digest of MODDS advantages. 2 figures.

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The study of a process for the low cost production of silane included laboratory investigations of the kinetics of the redistribution of dichlorosilane and trichlorosilane vapor over a tertiary amine ion exchange resin catalyst. The hydrogenation of SiCl/sub 4/ to form HSiCl/sub 3/ and the direct synthesis of H/sub 2/SiCl/sub 2/ from HCl gas and metallurigical silicon metal were also studied. The purification of SiH/sub 4/ using activated carbon adsorbent was studied along with a process for storing SiH/sub 4/ adsorbed on carbon. The latter makes possible a higher volumetric efficiency than the current practice of compressed gas storage. The mini-plant designed to produce ten pounds per day of SiH/sub 4/ is nearly complete, a detailed description of the unit and its essential design features are given.

A review of the literature on the electromagnetics coupling through apertures is presented. The particular problem of interest is the various methods used to find the effect of EMP coupling through apertures. Also, the areas needed for future studies are outlined. 35 references. (WHK)

The interim report is submitted for review and critique prior to preparation of a subsequent report that will complete the summary of pre-experimental turbulent design analysis. The reported work is in support of the D-Division ''Rainout'' program. Experimental facility design, diagnostics development, and concept evolution are under the guidance of General Chemistry. Preliminary analysis, results, predictions, and suggestions here are fluid dynamic considerations on the design of the turbulent attachment rate experiments. Timely publication of these current results is essential in order to meet experimental design schedules. The final LLL report will consist of these results and analyses, additions requested by the program reviewers, and an additional study emphasizing detailed turbulence structure and energy spectral considerations.

In many cases, scientifically important problems cannot be well represented for visual interpretation in two dimensions. For example, in the case of potential energy surfaces, two-dimensional plots are often insufficient. Additionally, the available data in these problems tends to be rather sparse--at least by computer graphics standards. SURFACE is a computer code designed to operate with Livermore Time Sharing System hardware and software. The program's purpose is to facilitate comprehensive analysis through the generation of three-dimensional figures from sparse data sets and the production of a 16- or 35-mm movie of the surface from a wide range of perspectives. 10 figures.

A test program was conducted to determine the fatigue behavior of LHTGR fuel element dowel/socket systems. Two dowel/socket systems, namely, a four-dowel system and a five-dowel system, were tested to failure under shear loads applied through a fatigue test apparatus to simulate repetitive loading during a seismic event.

Objective is to develop cyclic and polycyclic host organic compounds to complex and lipophilize metal ions. Macrorings were synthesized: (OCH$sub 2$ CH$sub 2$ O CH$sub 2$COCH$sub 2$ COCH$sub 2$)$sub 2$ and (OCH$sub 2$ CH$sub 2$ O CH$sub 2$ COCH$sub 2$ COCH$sub 2$)$sub 3$. The smaller ring complexes divalent metals 10$sup 1+9$ times better than the open-chain model CH$sub 3$ O CH$sub 2$ CO CH$sub 2$ COCH$sub 2$ O CH$sub 3$, and the order in which metal ions are complexed is Cu$sup 2+$, UO$sub 2$$sup 2+$ greater than Ni$sup 2+$ greater than Fe$sup 2+$, Co$sup 2+$, Zn$sup 2+$, Cd$sup 2+$ greater than Mn$sup 2+$. The UO$sub 2$$sup 2+$ and Cu$sup 2+$ complexes were isolated and characterized. The larger ring complexes trivalent metals 10/sup 0.9-1.7/ times better than the open- chain model compound, and the order is La$sup 3+$, Ce$sup 3+$ greater than Cr$sup 3+$. Five other macrocycles were also synthesized, and their binding constants with Na, K, NH$sub 4$, and Cs picrates were measured. Six compounds containing one macroring and two inward-pointing ArOH or ArOCH$sub 3$ groups were also prepared and tested for binding of Li, Na, K, Rb, and NH$sub 4$ picrates. Racemic compounds containing two binaphthyls and its sulfur …

The history and state-of-the-art of laser isotope separation at the Lawrence Livermore Laboratory are reviewed. (TFD)

A time-limited signal which, when passed through a linear system, maximizes the total output energy is considered. Previous work has shown that the solution is given by the eigenfunction associated with the maximum eigenvalue in a Hilbert-Schmidt integral equation. Analytical results are available for the case where the transfer function is a low-pass filter. This work is extended by obtaining a numerical solution to the integral equation which allows results for reasonably general transfer functions.

In home range studies, the statistical analysis of radio telemetry data poses special problems due to lack of independence of successive observations along the sample path. Assuming, however, that such data is generated by a continuous, stationary, Gaussian process possessing the Markov property, then a multivariate Ornstein-Uhlenbeck diffusion process is necessarily the source and is proposed here to be a workable model. Its characterization is given in terms of the typical descriptive properties of home range such as center of activity, homing tendency, and confidence regions. Invariance of the model with respect to the choice of an observational coordinate system is established, while data for twin deer is used to illustrate the manner in which the model may be used for the study of territorial interaction. An approximate maximum likelihood procedure is proposed for estimation purposes, with results being reported for deer, coyote, and bird tracking data. Estimates based on the coyote tracking data are used to illustrate how the concept of statistical information may be utilized to examine various sampling strategies.

X-ray powder diffraction analyses of bulk uranium tritides, as a function of time, have been accomplished. The analyses were run during an overall time span of two years. This study was undertaken to determine whether any observable effects of the /sup 3/He buildup could be detected by means of lattice parameter measurements. Four tritiated uranium samples were investigated. The data obtained from three of these samples show expansion of their lattices to be as anticipated. The fourth sample yielded an unexpected growth rate for 10 months, after which the scatter of data points becomes anomalous. Review of the tabulated and plotted data shows that line broadening occurs in each sample at about 10 months. The line broadening, as detected by x-ray diffraction, is indicative of the sample's crystallites becoming smaller in size, viz., less than one micron. The measurement of this line broadening might prove beneficial by revealing the actual crystallite size of the material during storage. The x-ray study of the samples has shown that diffraction analyses, including lattice parameter measurements, do not directly reveal the mechanisms of /sup 3/He release. (auth)

The first experiments have been run using electrically heated, simulated fuel elements in an inert gas (argon) loop. The fuel elements have a chopped cosine power input and have a Pb/Sn alloy cladding. Single elements were used in the first two experiments with a step power pulse of about 1 kW/ft which was sufficient to melt the center of the clad within 8 to 10 sec. As the molten cladding entered the blanket (unheated) region, it froze within about 1 inch. The apparatus for the stainless steel pouring experiment is progressing. Additional models for freezing of molten cladding in colder regions are being analyzed and tested against the single tube pouring tests previously reported. Analytical routines are under development.

It has been demonstrated that electron microscope images obtained at about 3A resolution for Pr/sub 7/O/sub 12/ are in agreement with calculated images based upon known structures. This establishes the efficacy of crystal structure image interpretation in structural terms, including the defect structure and mechanism of phase reactions, for these types of related phases whose structures are as yet beyond conventional means to determine. Further work on the epsilon (Pr/sub 10/O/sub 18/) phase is reported both utilizing electron optical methods and single crystal X-ray techniques. The ternary ceramic system HfO/sub 2/.xEr/sub 2/O/sub 3/ is being examined using electron optical techniques and ordering not hitherto reported is being observed. An interactive crystal structure image calculation system is being developed which will permit the immediate comparison of enhanced images synthesized from trial structures (including defects) and displayed in juxtaposition on a graphics unit. 22 fig. (auth)

The absolute sensitivities of several different types of x-ray detectors were measured between 183 eV and 932 eV. The photons in this energy range were produced by bombarding thin, water-cooled, metal targets with protons from a Cockcroft-Walton ion accelerator. The detectors measured included a silicon-semiconductor detector, two photoelectric-diode detectors employing aluminum and gold photocathodes, and three detectors incorporating plastic scintillators and photodiodes.

The faciliies described will provide a direct route from the 241-S-151 and 241-U-151 Diversion Boxes to the 241-SY Tanks. The 244-S Catch Station will consist of a 20,000 gallon primary tank contained within a concrete vault lined with carbon steel. Encased three-inch carbon steel process lines will be extended to the catch station pump pit from the 241-SY Tank Farm, the 241-S-151 Diversion Box and the 241-U-151 Diversion Box encasement. The facility will have its own ventilation system for exhausting the primary tank and the annulus area. A small instrument shack will house locally mounted instrumentation and controls. Existing designs for Project B-103 will be used where similarities exist (H-2-38200). The project is expected to cost $1,900,000 and require 19 months for the initiation of Title I design until construction is complete.

The performance of an idealized geothermal binary-fluid-cycle energy conversion system is shown to be a function of the temperatures of brine and working fluid leaving the heat exchanger. System power output, heat exchanger area required and initial well and heat exchanger costs are determined for counterflow, single and multi-pass parallel-counterflow exchangers. Results are presented graphically as functions of the brine and working fluid exit temperatures from the exchanger. Use of the system analysis developed is illustrated by showing quantitatively the advantage of the counterflow over the other flow arrangements considered.

The current interest in fast ions has prompted the design of a new time-of-flight ion spectrometer which measures the high energy ions from a laser produced plasma. A magnet was used to separate the ions from the intense background of electrons, x-rays and scattered light. The design of the instrument is wide band so that ions with energies 0.03 to 3000 keV/amu can be measured. Results from target experiments on the LLL ARGUS laser facility will be presented. The fast ion spectrum is dovetailed with the spectrum of the slower ions collected by Faraday cups and thus provides a measurement for the total energy carried by ions. The charge to mass ratio of the ions can be calculated from the spectrometer output.

The elements of a Nd: Glass laser chain as it is constructed for fusion experiments are described. A brief overview of the ARGUS and SHIVA systems employing Nd lasers is given. (MOW)