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S>Portions of two samples of HRT fael solutions were sealed in silica capillary tubes approximately three weeks after they were removed from the reactor and the temperature at which each solution separated into two liquid layers was determined. The values found, 325 er inch per 1 C for one sample and 326 er inch per 1/2 C for the other, are slightly lower than predicted from experiments with synthetic fuel solutions (329--330 C) but the discrepancies are small enough so that they could be accounted for by the minor differences in composition between the synthetic and reactor fuel solutions. There appears to be little reason to believe that the high radiation level which the fuel- solution is exposed to in the reactor has a significant effect on its phase behavior, at least after it has cooled to 2r per ml. Dilution of fuel solution wvith 8 vol.% of 30% H/sub 2/O/sub 2/ and with the same amount of H/sub 2/O increased the two-liquid phase formation temperature about 2 EC but increasing the free D/sub 2/SO/sub 2/ concentration from about 0.017 to 0.04 M raised the immiscibility temperature 19 to 345 C. (auth)

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Measurements of the spectrum of the fission neutrons of 25 are described, in which the energy of the neutrons is determined from the ionization produced by individual hydrogen recoils. The slow neutrons producing fission are obtained by slowing down the fast neutrons from the Be-D reaction of the Stanford cyclotron. In order to distinguish between fission neutrons and the remaining fast cyclotron neutrons both the cyclotron current and the pusle amplifier are modulated. A hollow neutron container, in which slow neutrons have a lifetime of about 2 milliseconds, avoids the use of large distances. This method results in much higher intensities than the usual modulation arrangement. The results show a continuous distribution of neutrons with a rather wide maximum at about 0.8 MV falling off to half of its maximum value at 2.0 MV. The total number of netrons is determined by comparison with the number of fission fragments. The result seems to indicate that only about 30% of the neutrons have energies below .8 MV. Various tests are described which were performed in order to rule out modification of the spectrum by inelastic scattering.

Three independent measurements of the work function of uranium have been reported. The values obtained were were made with uranium wire and since, as shown by the authors, uranium is very readily oxidized at pressures of 10/sup -7/ mm Hg to give a relatively non-volatile oxide, one surmises that some of these determinations were subject to error because of vacuum conditions. Attempting to investigate the validity of this criticism, the authors have measured the thermionic properties of a uranium wire in such a manner that some information regarding the cleanliness of the surface can be deduced. The two types of measuremente accomplished were the change in the thermionic constants of the Richardson equation with time of heating in hydrogen, and the dependence of current on the retarding potential. (auth)

Tensile properties data are presented on fifteen materials which were tested at 75°F, -100°F, -320°F, and -425°F temperatures. The test equipment utilized to obtain these data and test methods are described. The test results are discussed.

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Declassified 21 Sep 1973. The following were studied: mechanical properties of WUO/sub 2/ -- ThO/sub 2/, Mo --54UO/sub 2/ --6ThO/sub 2/. W--3Re -- 54UO/sub 2/ -6ThO/sub 2/, Mo--50Re, W--30Re--3OMo, Ta and Ta --8W--2Hf; thermal expansion of W-25Re--30Mo and unclad and Ta-clad W--54UO/sub 2/--6ThO/sub 2/; and electric conductivity of Ta tubing and Ta-clad W--54UO/sub 2/-6ThO/sub 2/. (DLC)

Helicity amplitudes are written for photoproduction of mesons and related in the amplitudes of Chew, Goldberger, Low, and Nambu. The expansions of both types of amplitudes in terms of amplitudes for particular angularmomentum states are then inverted. (auth)

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A 48-in.-long liquid-hydrogen target is described. The operating characteristics of the target and its safety features which follow the regulations laid down by the Hydrogen Safety Committee of the Lawrence Radiation Laboratory are stressed. (auth)

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This report outlines the United Arab Emirates (UAE) governmental structure, economy, military, foreign policy, human rights issues and U.S. policies and relations with the UAE. Major areas of U.S. policy concerns discussed are the UAE's participation in the war in Yemen supporting Saudia Arabia and the current standoff with Quatar over alleged sponsorship of terrorism by Quatar in relation to the significant amount of U.S. military personnel based in the UAE.

This report provides background information and issues for Congress on China's naval modernization effort and its implications for U.S. Navy capabilities. The question of how the United States should respond to China's military modernization effort, including its naval modernization effort, is a key issue in U.S. defense planning and budgeting. Decisions that Congress reaches on this issue could affect U.S. Navy capabilities and funding requirements and the U.S. defense industrial base.

The purpose of this report is to provide a concise but comprehensive overview of Atmospheric Radiation Measurement Climate Research Facility instrumentation status. The report is divided into the following five sections: (1) new instrumentation in the process of being acquired and deployed, (2) field campaigns, (3) existing instrumentation and progress on improvements or upgrades, (4) proposed future instrumentation, and (5) Small Business Innovation Research instrument development.

Phase 1 of the Tank-Farm Vadose Zone Program (TFVZP) developed information on the nature and extent of vadose zone contamination in the tank farms through field studies, laboratory analyses and experiments, and historical data searches; assembled data and performed tank-farm risk analysis; and initiated interim corrective actions to lessen the impacts of tank leak contaminants. Pacific Northwest National Laboratory scientists and external collaborators at universities and U.S. Department of Energy user facilities sampled and analyzed contaminant plumes. These types of activities will continue during Phase 2 of the TFVZP to refine and expand scientific understanding of the subsurface beneath tank farms, especially of water movement, residual waste leaching, and contaminant transport.

The Defense Waste Processing Facility (DWPF) is currently evaluating an alternative Chemical Process Cell (CPC) flowsheet to increase throughput. It includes removal of the steam-stripping step, which would significantly reduce the CPC processing time and lessen the sampling needs. However, its downside would be to send 100% of the mercury that comes in with the sludge straight to the melter. For example, the new mercury content in the Sludge Batch 5 (SB5) melter feed is projected to be 25 times higher than that in the SB4 with nominal steam stripping of mercury. This task was initiated to study the impact of the worst-case scenario of zero-mercury-removal in the CPC on the DWPF melter offgas system. It is stressed that this study is intended to be scoping in nature, so the results presented in this report are preliminary. In order to study the impact of elevated mercury levels in the feed, it is necessary to be able to predict how mercury would speciate in the melter exhaust under varying melter operating conditions. A homogeneous gas-phase oxidation model of mercury by chloride was developed to do just that. The model contains two critical parameters pertaining to the partitioning of chloride among HCl, …

The goal of the study was to optimize performance of the fixed-location hydroacoustic systems at Lookout Point Dam (LOP) and the acoustic imaging system at Cougar Dam (CGR) by determining deployment and data acquisition methods that minimized structural, electrical, and acoustic interference. The general approach was a multi-step process from mount design to final system configuration. The optimization effort resulted in successful deployments of hydroacoustic equipment at LOP and CGR.

This report discusses the laws of the united states, of each of the states and of the district of Columbia, Guam, Puerto Rico and the Virgin Islands as they relate to the regulation of the dissemination of obscene materials-literature, photographs, pictures, films etc.

This report provides a description of Fairness doctrine and also the controversial issues of public importance.

This report is about the Title I Program of the Omnibus Crime Control and Safe Streets Act of 1968 as amended of the the Law Enforcement Assistance Administration(LEAA)

This report presents data on U.S. merchandise (goods) trade with its Free Trade Agreement (FTA) partner countries. The data are presented to show bilateral trade balances for individual FTA partners and groups of countries representing such major agreements as the North America Free Trade Agreement (NAFTA) and the Central American Free Trade Agreement and Dominican Republic (CAFTA-DR) relative to total U.S. trade balances.

This report provides background information and potential oversight issues for Congress on the Columbia class program, previously known as the Ohio replacement program (ORP) or SSBN(X) program, a program to design and build a new class of 12 ballistic missile submarines (SSBNs) to replace the Navy's current force of 14 Ohio-class SSBNs.