"This report analyzes the provisions of the [War Powers] Resolution and a decade of experience with it" (p. ii).

Two types of design concepts were evaluated with the thermal models: (1) a vertical thermal element which modifies both the temperature profile in the web as well as the convective gas flow near the web; and (2) a thinner lid configuration in which the second lid is replaced by a hot cavity. Each involves trade-offs which need experimental evaluation. Residual stress measurements using the serial split-width technique indicated that the real residual stress was comparable to (or less than) the equivalent residual stress, which has been used as a measure of structural perfection in web crystals in previous reports. New dynamic and new static configurations were given preliminary evaluation in the laboratory, with results generally in agreement with the made predictions. Improved system temperature measurements were made leading to growth in closer agreement with the model predictions. Improved methods for controlling convective gas flow and oxide deposition were developed.

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Each of the two field test bits showed some promise though their performances were less than commercially acceptable. The Ohio test bit ran just over 3000 feet where about 4000 is considered a good run but it was noted that a Varel bit of the same type having a standard O ring seal was completely worn out after 8-1/2 hours (1750 feet drilled). The Texas test bit had good seal-bearing life but was the wrong cutting structure type for the formation being drilled and the penetration rate was low.

The Advanced Experiments Group of B-Division, LLNL, has been seeking to improve the sensitivity and spatial resolution of stacked film screens for bremsstrahlung flash radiography of imploding, dense metal shells. In the work reported here, we experimentally measured the spreading of the x-ray shadow of the edge of a uranium block in two film-and-screen combinations. We also used the SANDYL code, which models photon and electron scattering, to calculate the theoretical edge spreading in an array of films and screens. Experimentally, the uranium edge was spread to a width of 1.7 mm in the combination 0.15-mm-Ta/NDT9-XAR5, and 1.5 mm in the combination 0.25-mm-Ta/NDT6-XAR5. The theoretical calculation agreed with these results.

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The research objectives and goals of 1983--84 to date include further investigation of 1-halogenated and B-/C-ring halogenated and radio halogenated estradiol derivatives for potential use as receptor-binding radiopharmaceuticals. Our group has devised synthetic routes to 1-bromo, 1-chloro- and 1-fluoroestradiol via electrophilic halogenation of the aromatic A-ring. Work is presently underway to prepare the 1-iodo derivative using a similar methodology. The 11 {beta}-methoxy, 17 {alpha}-ethynyl and 11 {beta}-methoxy-17 {alpha}-ethynyl derivatives are of synthetic interest if the in vitro binding affinities of the parent compounds are favorable. The B- and C-ring vinyl halides' which were proposed in the current contract could not be prepared using the hydrazone intermediates described. Presently, other methods which show promise are being investigated. Stable B-ring brominated derivatives of estradiol have been prepared by our group. Their in vitro properties are currently under investigation. 15 refs.

Technetium (Tc) is a major fission product with a fission yield similar to {sup 90}Sr and {sup 137}Cs. All traces of the natural element have disappeared due to decay over the earth`s history. The major isotope present in cooled nuclear fuel is {sup 99}Tc with a half life of 2.12 {times} 10{sup 5} years. This isotope decays via low energy (0.292 Mev) beta emission which is easily absorbed and contributes little penetrating radiation hazards in fuel reprocessing. Because it is difficult to detect, the distribution of {sup 99}Tc in the F and H area process streams is not generally well known. Previous studies have shown that a significant fraction of Tc follows uranium through the solvent extraction process. This study was conducted to analyze the {sup 99}Tc content of SRP uranium product streams, to assess any hazard due to {sup 99}Tc and to evaluate the impact of future higher burnup fuels on {sup 99}Tc levels in uranium products. This summary report presents {sup 99}Tc assays in uranium streams in F and H areas, relates these concentrations to solvent extraction conditions in the two areas, and compares the incremental radioactivity from {sup 99}Tc in the product streams to the uranium itself. …

This report contains the results of measurements performed on sample coax No.2 from the Furukawa Cable Co. of Japan. Time domain reflectometer (TOR) and RLC measurements were made at room temperature and superconducting. Network analyzer measurements of S11 and S21 were made for the superconducting coax.

Compilation of monthly reports from departments in the city of San Antonio, Texas providing statistics, project updates, and other information about services and activities.