Energy-dispersive x-ray fluorescence analysis (XRFA) can be used to measure nondestructively pure and mixed U/Pu concentrations in process streams and hold tank solutions. The 122-keV gamma ray from /sup 57/Co excites the actinide K x rays which are detected by a HPGe detector. A computer- and disk-based analyzer system provides capability for making on-stream analyses, and the noninvasive measurement is easily adapted directly to appropriate sized pipes used in a chemical reprocessing plant. Measurement times depend on concentration and purpose but vary from 100 to 500s for process control of strong to weak solutions. Accountability measurements require better accuracy thus more time; and for solutions containing plutonium, require a measurement of the solution radioactivity made with an automatic shutter that eclipses the two exciting sources. Plutonium isotopic abundances can also be obtained. Concentrations in single or dual element solutions from less than 1 g/l to over 200 g/l are determined to an accuracy of 0.2% after calibration of the system. For mixed solutions the unknown ratio of U to Pu is linearly related to the net U/Pu K x-ray intensities. Concentration values for ratios different than the calibration ratio require only small corrections to the values derived from a calibration …

>Progress reported includes preparation and tensile properties of Pt-Rh-- W alloys, oxidation of Ir, and effects of 0/sub 2/ and CO on tensile properties of T-111 and TZM. (DLC)

Data are given on bend testing of Pt--Rh--W alloys; tensile properties of Pt--Rh--W alloys with and without Hf and Ti additions; tensile properties of recrystallized Ir; effects of contamination by gases (oxygen, degassed impurities, water vapor, CO) on the tensile properties of T-111, TZM, and Mo--46% Re; and fractography and bend testing of T-111 from Pioneer heat source capsules. (DLC)

Seizing of the metal-to-metal, piston-like carriages of a thermal ionization mass spectrometer vacuum lock was eliminated by replacing 0.0015 in. of the carriage surface with Teflon-S. The vacuum lock has been operated 1600 times in the 3.5 years since the carriages were coated. Both the plastic surface and the mass spectrometer vacuum remain satisfactory. (auth)

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From nuclear science symposium; San Francisco, California, USA (14 Nov 1973). A computer-controlled air sampling system has been designed and is presently being constnacted. The self-contained, mobile system will collect and record data from eight meteorological sensors. This information will be used in the study of resuspen airborne activity. Air sampler operation will be based on comparisons between the meteorological data and the sampling criteria selected by the operator at the beginning of the run. Correlation between meteorological parameters and resuspension will be used to develop a predictive model. A description of system hardware and a discussion of the software concept are included. (auth)

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A comprehensive test program was conducted on the FFTF 8-in. Secondary Isolation Valve (SIV) to qualify its use in the FFTF system. The tests were performed in the Small Components Test Loop/Piping and Valve Test Insert (SCTL/PVTI) facility at the Liquid Metal Engineering Center (LMEC) in accordance with Westinghouse Test Request WDTRS 26.05. Physical inspections were conducted at the conclusion of sodium testing and following an alcohol cleaning process. Results of the investigation indicate that the valve is suitable for use as an FFTF plant spare.

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A model for printed circuit boards which can be used to predict the probability that a router will successfully make a connection is presented. The model reflects certain characteristics of the circuit board that is being routed and the model incrementally changes as the board is routed. Routing procedures typically have certain parameters which influence selection of the set of paths that are explored, and determine the order of exploration. These parameters obviously influence the probability that a particular connection can be made. These parameters may also be used to formulate a model of the behavior of a particular routing procedure.

This volume contains technical material related to community energy conservation programs, and supplements the organizational material in Volume I. It is in looseleaf format so that sections related to specific topics can be easily copied or transferred to individuals responsible for various sorts of conservation, such as carpooling programs, building improvements, and community outreach. Three technical chapters are included, discussing topics in the areas of: internal city and county operations; community powers and regulations, and outreach programs. In the first, the concern is with what the community can do to reduce energy use in its own operations, an effective first step in promoting comprehensive energy conservation. The second chapter analyzes ways that the police power and fiscal powers of the community can be used for energy conservation, through building codes, zoning, and similar measures. In the final chapter, ways to promote energy conservation in the community are discussed: programs include outreach to households and firms, carpool promotion, waste oil recycling, etc.

This report presents conceptual designs, discusses research and development requirements, and provides schedule requirements and rough order of magnitude cost estimates for the ECRH system. Requirements for the basic equipment needed to implement the ECRH power generators and distribute the power have been developed. Conceptual approaches to the development and fabrication of such a system have been generated. (MOW)