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Reaction Hamiltonian and state-to-state description of chemical reactions

Description: A chemical reaction is treated as a quantum transition from reactants to products. A specific reaction Hamiltonian (in second quantization formalism) is introduced. The approach leads to Franck-Condon-like factor, and adiabatic method in the framework of the nuclear motion problems. The influence of reagent vibrational state on the product energy distribution has been studied following the reaction Hamiltonian method. Two different cases (fixed available energy and fixed translational energy) a… more
Date: August 1, 1985
Creator: Ruf, B. A.; Kresin, V. Z. & Lester, W. A. Jr.
Partner: UNT Libraries Government Documents Department
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Comparison of phosgene, chlorine, and hydrogen chloride as reagents for converting molten CaO. CaCl/sub 2/ to CaCl/sub 2/

Description: One method at Los Alamos for preparing impure plutonium metal from the impure oxide is by batch reduction with calcium metal at 850/sup 0/C in a CaCl/sub 2/ solvent. The solvent salt from this reduction is currently discarded as low-level radioactivity waste only because it is saturated with the CaO byproduct. We have demonstrated a pyrochemical technique for converting the CaO to CaCl/sub 2/ thereby incorporating solvent recycling into the batch reduction process. We will discuss the effective… more
Date: January 1, 1985
Creator: Fife, K. W.
Partner: UNT Libraries Government Documents Department
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Development of an Effective Transport Media for Juvenile Spring Chinook Salmon to Mitigate Stress and Improve Smolt Survival During Columbia River Fish Hauling Operations, 1985 Final Report.

Description: Selected transport media consisting of mineral salt additions (Na/sup +/, Cl/sup -/, Ca/sup + +/, PO/sub 4//sup -3/, HCO/sub 3//sup -/, and Mg/sup + +/), mineral salts plus tranquilizing concentrations of tricaine methane sulfonate (MS-222), or MS-222 alone were tested for their ability to mitigate stress and increase smolt survival during single and mixed species hauling of Columbia River spring chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Salmo gairdneri). Successful stress … more
Date: February 1, 1985
Creator: Wedemeyer, Gary A.
Partner: UNT Libraries Government Documents Department
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Dual mechanism bifunctional polymers for the complexation of lanthanides and actinides. [Phosphinic resins]

Description: Phosphinic acid ion exchange/redox resins are synthesized by the reaction between polystyrene beads and phosphorus trichloride followed by base hydrolysis. The reaction requires a temperature of 73/sup 0/C for full functionalization to occur. The effect of lower functionalization temperatures on resin acid capacity was determined and the concomitant effect on ion exchange investigated. The acid capacity was found to vary from 1.09 mequiv/g to 4.79 mequiv/g in the functionalization temperature r… more
Date: January 1, 1985
Creator: Alexandratos, S.D.; Quillen, D.R. & McDowell, W.J.
Partner: UNT Libraries Government Documents Department
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Crystal-Field Spectroscopy of UCL4 by Neutron Inelastic Scattering

Description: The crystal-field level scheme of uranium tetrachloride has been the subject of a number of investigations by both optical and magnetic measurements. Agreement does not exist. To attempt to resolve this problem we have performed experiments with the pulsed neutron source at ANL which allows electronic spectroscopy to be extended to approx.2000 cm/sup -1/. Initially using incident energies of 400 cm/sup -1/ we examined the GAMMA/sub 4/ (ground state) to GAMMA/sub 5/ (excited state) level with th… more
Date: January 1, 1985
Creator: Delamoye, P.; Krupa, J. C.; Kern, S.; Loong, C. K. & Lander, G. H.
Partner: UNT Libraries Government Documents Department
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Evaluation of the transgranular cracking phenomenon on the Indian Point No. 3 steam generator vessels

Description: A metallurgical investigation was performed on specimens from the shell of steam generators Nos. 31 and 32 of the Indian Point-3 Power Plant. The shell material exhibited high values in hardness which was indicative that relatively high residual stresses may have been present. All observed cracks were transgranular in appearance and were associated with pits on the vessels' inside surfaces. Both stress relieved and non-stress relieved specimens of SA302 Grade B material were tested in a constan… more
Date: January 1, 1985
Creator: Czajkowski, C.J.
Partner: UNT Libraries Government Documents Department
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WESF cesium capsule behavior at high temperature or during thermal cycling

Description: Double-walled stainless steel (SS) capsules prepared for storage of radioactive /sup 137/Cs from defense waste are now being considered for use as sources for commercial irradiation. Cesium was recovered at B-plant from the high-level radioactive waste generated during processing of defense nuclear fuel. It was then purified, converted to the chloride form, and encapsulated at the Hanford Waste Encapsulation and Storage Facility (WESF). The molten cesium chloride salt was encapsulated by pourin… more
Date: June 1, 1985
Creator: Tingey, G. L.; Gray, W. J.; Shippell, R. J. & Katayama, Y. B.
Partner: UNT Libraries Government Documents Department
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Energy dispersive spectroscopy using synchrotron radiation: intensity considerations

Description: Detailed considerations are given to the reliability of energy dependent integrated intensity data collected from the pressure cavity of a diamond-anvil pressure cell illuminated with heterochromatic radiation from a synchrotron storage ring. It is demonstrated that at least in one run, the electron beam current cannot be used to correct for energy-intensity variations of the incident beam. Rather there appears to be an additional linear relationship between the decay of the synchrotron beam an… more
Date: January 1, 1985
Creator: Skelton, E. F.; Elam, W. T.; Qadri, S. B.; Webb, A. W. & Schiferl, D.
Partner: UNT Libraries Government Documents Department
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Choice of pyroprocess for Integral Fast Reactor fuel

Description: A design objective for the Integral Fast Reactor (IFR) is fuel self sufficiency. This can be achieved only by employing chemical reprocessing as part of the fuel cycle. Because the fuel is a metal alloy (U-Pu-Zr), direct production of metal is highly advantageous. This makes a pyrometallurgical process attractive. (JDB)
Date: January 1, 1985
Creator: Miller, W. E.; Johnson, T. R. & Tomczuk, Z.
Partner: UNT Libraries Government Documents Department
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Environmental monitoring at Argonne National Laboratory. Annual report for 1984

Description: The results of the environmental monitoring program at Argonne National Laboratory for 1984 are presented and discussed. To evaluate the effect of Argonne operations on the environment, measurements were made for a variety of radionuclides in air, surface water, ground water, soil, grass, bottom sediment, and milk; for a variety of chemical constituents in surface water, ground water, and Argonne effluent water; and of the environmental penetrating radiation dose. Sample collections and measure… more
Date: March 1, 1985
Creator: Golchert, N.W.; Duffy, T.L. & Sedlet, J.
Partner: UNT Libraries Government Documents Department
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E-beam-induced fluorescence of excimers in cryogenic solutions

Description: We have detected the fluorescence emitted from excimer molecules formed in e-beam-pumped mixtures in a liquid argon host. The mixtures were both binary (halogen donors in the liquid argon) and ternary (dilute concentrations of donors and other rare gases in the liquid argon). Many excimers were observed, including the rare-gas dimers Xe/sub 2/, Kr/sub 2/, and Ar/sub 2/. Strong fluorescence was seen from XeF, XeCl, and ArO.
Date: January 1, 1985
Creator: Loree, T. R.; Showalter, R. R.; Johnson, T. M.; Telle, J. M.; Fisher, R. A. & Hughes, W. M.
Partner: UNT Libraries Government Documents Department
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Analysis of anions in geological brines using ion chromatography

Description: Ion chromatographic procedures for the determination of the anions bromide, sulfate, nitrite, nitrate, phosphate, and iodide in brine samples have been developed and are described. The techniques have been applied to the analysis of natural brines, and geologic evaporites. Sample matrices varied over a range from 15,000 mg/L to 200,000 mg/L total halogens, nearly all of which is chloride. The analyzed anion concentrations ranged from less than 5 mg/L in the cases of nitrite, nitrate, and phosph… more
Date: March 1, 1985
Creator: Merrill, R.M.
Partner: UNT Libraries Government Documents Department
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Recovery of plutonium by pyroredox processing

Description: Using pyrochemical oxidation and reduction, we have developed a process to recover the plutonium in impure scrap with less than 95% plutonium. This plutonium metal was further purified by pyrochemical electrorefining. During development of the procedures, depleted electrorefining anodes were processed, and over 80% of the plutonium was recovered as high-purity metal in one electrorefining cycle. Over 40 kg of plutonium has been recovered from 55 kg of impure anodes with our procedures. 6 refs.,… more
Date: September 1, 1985
Creator: McNeese, J.A.; Bowersox, D.F. & Christensen, D.C.
Partner: UNT Libraries Government Documents Department
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Effects of barium chlorine treatment of uranium ore on /sup 222/Rn emanation and /sup 226/Ra leachability from mill tailings

Description: The purpose of this laboratory study was to investigate the effectiveness of barium chloride treatment of uranium ore on /sup 222/Rn emanation from mill tailings, /sup 226/Ra level in waste-water, and the leachability of radium from tailings. It has been shown that barium sulfate is an excellent carrier for radium and that barium sulfate crystals have high retention capacity for radon gas produced by radium trapped within the lattice. Ground uranium ore from a mine in Wyoming was mixed with wat… more
Date: January 1, 1985
Creator: Ibrahim, S. A.; Church, S. L. & Whicker, F. W.
Partner: UNT Libraries Government Documents Department
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CORRELATIONS BETWEEN VAPOR SATURATION, FLUID COMPOSITION, AND WELL DECLINE IN LARDERELLO

Description: A large body of field data from Larderello shows striking temporal correlations between decline of well flow-rate, produced gas/steam ratio, chloride concentration and produced vapor fraction. The latter is inferred from measured concentrations of non-condensible gases in samples of well fluid, using chemical phase equilibrium principles. Observed temporal changes in the vapor fractions can be interpreted in term of a ''multiple source'' model, as suggested by D'Amore and Truesdell (1979). This… more
Date: January 22, 1985
Creator: D'Amore, F. & Pruess, K.
Partner: UNT Libraries Government Documents Department
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Photofragment fluorescence as an analytical technique: application to gas-phase alkali compounds

Description: Photodissociation of gas-phase compounds using a laser at suitably short ultraviolet wavelengths can produce electronically excited photofragments. Detection of fluorescence from these excited fragments, particularly atomic fragments, allows sensitive and quantitative density measurements while signal strength as a function of dissociation laser wavelength allows differentiation between compounds that yield the same photofragment. Application of the technique to the detection of gas-phase alkal… more
Date: January 1, 1985
Creator: Oldenborg, Richard C. & Baughcum, Steven L.
Partner: UNT Libraries Government Documents Department
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Rapid Casing Corrosion in High Temperature Liquid Dominated Geothermal Fields

Description: Downhole logging and workover operations on 12-20 year old wells in several high temperature, liquid-dominated geothermal fields in New Zealand has shown that severe corrosion has commonly occurred in the production casing string where this is unprotected by larger diameter casings. To date corrosion products from only one well have been examined in detail. These indicate that corrosion attack commences at the outer casing wall and continues at a rate as great as 0.8mm/year. Rapid corrosion has… more
Date: January 22, 1985
Creator: Bixley, P.F. & Wilson, D.M.
Partner: UNT Libraries Government Documents Department
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Spin density study of UCl/sub 4/: discovery of cobalency effects

Description: Neutron experiments have been performed to measure the induced spin density distribution in single crystals of uranium tetrachloride at low temperature. A structural refinement has also established the atomic positions and thermal parameters at low temperature and these are in agreement with earlier studies. The spin-density distribution, determined with polarized neutrons, shows small but significant deviations from that expected from the single-ion crystal-field model. Fourier difference maps… more
Date: August 1, 1985
Creator: Lander, G. H.; Brown, P. J.; Spirlet, M. R.; Rebizant, J.; Kanellakopulos, B. & Klenze, R.
Partner: UNT Libraries Government Documents Department
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Cesium Chloride Compatibility Testing Program. Annual report, fiscal year 1984

Description: During the course of a prior examination, it was found that one of the aged test capsules exhibited discoloration and pitting on the outer surface of the inner capsule. The damage was attributed to problems encountered in the electropolishing operation, which is used to decontaminate the inner capsule after it is loaded with the CsCl and welded shut. A study was carried out in FY 1984 to: determine if the pitting was associated with the electropolishing operation; identify acceptable solution(s… more
Date: January 1, 1985
Creator: Bryan, G. H. & Divine, J. R.
Partner: UNT Libraries Government Documents Department
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