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Chemical Processing Technology Quarterly Progress Report, October-December 1961

Description: The ICPP processed Al fuel, prtncipally of the MTR-ETR type, durtng this quarter. Newly designed and installed processing equipment exhibited excellent operating performance. This included direct-air-pulsed extraction, stripping and scrub columns, and a cascade-controlled continuous evaporator in first cycle product concentration service. Aqueous zirconium fuel processing studies continued with the objective of adapting the hydrofluoric acid process to continuous dissolution-complexing to incre… more
Date: March 28, 1962
Creator: Bower, J. R.
Partner: UNT Libraries Government Documents Department
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Photogenerated carrier-induced reactions on uhv semiconductor surfaces

Description: The objective for this experimental work was to examine the reaction mechanisms, half-collision dynamics, and other optically induced chemical effects, that are operable on a well characterized single-crystal semiconductor surface. Of particular interest were reactions induced by charge transfer from the semiconductor surface including hot carrier and thermalized carrier processes. The primary technique to measure the desorbed fragment translational energies was time-of-flight mass-spectroscopy… more
Date: May 28, 1992
Creator: Osgood, R.M. Jr.
Partner: UNT Libraries Government Documents Department
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NON-DESTRUCTIVE ANALYSIS OF URANIUM IN GRAPHITE FUEL ELEMENTS BY NEUTRON ACTIVATION

Description: A method is presented for the determination of uranium (as U/sup 238/) in uraniuni-loaded graphite fuel elenients by a non-destructive, direct radioactivity analysis technique. A 200-cbannel pulse-height analyzer, equipped with a 3 in. x 3 in. NaI(Tl) crystal, is used to measure the Np/sup 239/ radioactivity of the neutron-irradiated samples. The amount of U/sup 238/ in the test samples is deterimined quantitatively by comparing the Np/sup 239/ radioactivity induced in each sample with the Np/s… more
Date: November 28, 1961
Creator: Bate, L.C.; Hampton, W.J. & Leddicotte, G.W.
Partner: UNT Libraries Government Documents Department
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Ionic Equilibria and Anion Exchange of Uranyl Sulfate Solutions

Description: Theoretical investigation on the nature of ion exchange of acidified uranyl sulfate solutions with Dowex 21K, a strong base ion exchange resin.
Date: September 28, 1962
Creator: Stein, P. E.
Partner: UNT Libraries Government Documents Department
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SMALL-SCALE IMPACT SENSITIVITY TESTING ON EDC37

Description: EDC37 was tested at LLNL to determine its impact sensitivity in the LLNL's drop hammer system. The results showed that impact sensitivities of the samples were between 86 cm and 156 cm, depending on test methods. EDC37 is a plastic bonded explosive consisting of 90% HMX, 1% nitrocellulose and binder. We recently conducted impact sensitivity testing in our drop hammer system and the results are presented in this report.
Date: April 28, 2008
Creator: HSU, P C; HUST, G & MAIENSCHEIN, J L
Partner: UNT Libraries Government Documents Department
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Final Report on Research Conducted under Grant DE-FG02-98ER14857

Description: Work in the Carpenter laboratory under the aegis of grant DE-FG02-98ER14857 concerned the formation, properties, and reactions of organic free radicals known or believed to be important in hydrocarbon combustion. Both computational and experimental methods were employed in these studies.
Date: January 28, 2008
Creator: Carpenter, Barry,K. & Davis, H., Floyd
Partner: UNT Libraries Government Documents Department
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Investigation of Electron Transfer-Based Photonic and Electro-Optic Materials and Devices

Description: Montana’s state program began its sixth year in 2006. The project’s research cluster focused on physical, chemical, and biological materials that exhibit unique electron-transfer properties. Our investigators have filed several patents and have also have established five spin-off businesses (3 MSU, 2 UM) and a research center (MT Tech). In addition, this project involved faculty and students at three campuses (MSU, UM, MT Tech) and has a number of under-represented students, including 10 wo… more
Date: March 28, 2008
Creator: Bromenshenk, Jerry J; Abbott, Edwin H; Dickensheets, David; Donovan, Richard P; Hobbs, J D; Spangler, Lee et al.
Partner: UNT Libraries Government Documents Department
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Spectroscopic Characterization of Intermediates in the Iron Catalyzed Activation of Alkanes

Description: The present report begins with a brief survey of recent hypervalent iron chemistry and mentions two previously reported ferrate papers funded by the DOE/BES grant. The focus is then shifted to the seven publications acknowledging support of the grant that have not been reported since the last Progress Report, DOE/ER/14340-9, was prepared. These papers deal with: (a) the successful use of an ATR element in a stopped-flow infrared spectrometer, (b) the rationalization of a depolarization of a LiC… more
Date: May 28, 2007
Creator: Eyring, Edward M.
Partner: UNT Libraries Government Documents Department
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Final Progress Report for THERMOPHYSICAL PROPERTIES OF FLUIDS AND FLUID MIXTURES

Description: The DOE supported research is a theoretical statistical-mechanical based study of the thermophysical properties of fluids and fluid mixtures. It focuses upon thermodynamic and transport properties in particular. In addition the study covers the development of new ways for predicting the microscopic structure of fluids in a wide range of thermodynamic state parameters, including the critical point.
Date: January 28, 2009
Creator: Stell, George
Partner: UNT Libraries Government Documents Department
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IMPACTS OF REDUCING CONDITIONS IN THE SATURATED ZONE AT YUCCA MOUNTAIN

Description: Variations in groundwater redox chemistry in the saturated zone near Yucca Mountain could have significant repository to the accessible environment. This study examines geochemical data relevant to the distribution of redox impacts on processes associated with the potential transport of redox-sensitive radionuclides from the proposed conditions in the saturated zone, the relationships between redox state and solubility and sorption coefficients for technetium and neptunium, and sensitivity in t… more
Date: February 28, 2006
Creator: Arnold, B.W.; Meijer, A.; Kalinina, E.; Robinson, B.; Kelkar, S.; Jove-Colon, C. et al.
Partner: UNT Libraries Government Documents Department
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Hydrogen Optical Fiber Sensors

Description: Optically-based hydrogen sensors promise to deliver an added level of safety as hydrogen and fuel cell technologies enter the mainstream. More importantly, they offer reduced power consumption and lower cost, which are desirable for mass production applications such as automobiles and consumer appliances. This program addressed two of the major challenges previously identified in porous optrode-based optical hydrogen sensors: sensitivity to moisture (ambient humidity), and interference from the… more
Date: July 28, 2008
Creator: Lieberman, Robert A.; Beshay, Manal & Cordero, Steven R.
Partner: UNT Libraries Government Documents Department
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Interlaboratory Study of the Reproducibility of the Single-Pass Flow-Through Test Method : Measuring the Dissolution Rate of Lrm Glass at 70 {Sup {Degree}}C and PH 10.

Description: An international interlaboratory study (ILS) was conducted to evaluate the precision with which single-pass flow-through (SPFT) tests can be conducted by following a method to be standardized by the American Society for Testing and Materials - International. Tests for the ILS were conducted with the low-activity reference material (LRM) glass developed previously for use as a glass test standard. Tests were conducted at 70 {+-} 2 C using a LiCl/LiOH solution as the leachant to impose an initial… more
Date: February 28, 2006
Creator: Ebert, W. L. & Engineering, Chemical
Partner: UNT Libraries Government Documents Department
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New Fragment Separation Technology for Superheavy Element Research

Description: This project consisted of three major research areas: (1) development of a solid Pu ceramic target for the MASHA separator, (2) chemical separation of nuclear decay products, and (3) production of new isotopes and elements through nuclear reactions. There have been 16 publications as a result of this project, and this collection of papers summarizes our accomplishments in each of the three areas of research listed above. The MASHA (Mass Analyzer for Super-Heavy Atoms) separator is being constru… more
Date: January 28, 2008
Creator: Shaughnessy, D A; Moody, K J; Henderson, R A; Kenneally, J M; Landrum, J H; Lougheed, R W et al.
Partner: UNT Libraries Government Documents Department
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(University of California, Davis) annual report for radioimmunotherapy program, Year 4, (1986)

Description: The goal of this program is to answer the fundamental scientific questions for the development of an effective approach to delivering radiation therapy to cancer on antibody-based radiopharmaceuticals. These basic questions refer to the choice of antibody fragments related to their biokinetics, the variation of the biokinetics with variations in the radiochemistry of labeling and the radionuclide used to label, the radionuclide radiation dosimetry, and the feasibility calculated from quantitati… more
Date: January 28, 1986
Partner: UNT Libraries Government Documents Department
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Advective diffusive/dispersive transport in geochemical processes

Description: Comprehensive understanding of chemical transport in response to fluid flow and diffusion in geologic processes requires thermodynamic and transport properties of a wide variety of aqueous species at the temperature and pressure of interest, as well as mass transfer computer codes that provide simultaneously for fluid flow, diffusion, dispersion, homogeneous chemical reactions, and mineral solubilities. As a result of research carried out with support from DOE in prior years of this grant, cons… more
Date: May 28, 1991
Creator: Helgeson, H. C.
Partner: UNT Libraries Government Documents Department
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Corrosion tests of DWPF recycle solution

Description: Coupon immersion tests were performed on ASTM A537, Class 1 carbon steel in simulated Defense Waste Processing Facility recycle solutions at 93 [plus minus] 2[degree]C, in an effort to reproduce the results of earlier tests in which hard, shock-sensitive deposits were found. There was no evidence of pitting corrosion on the coupons exposed to solutions containing 0.5 M hydroxide and 2000 ppm (0.043 M) nitrite. Liquid mercury and small solid deposits were found on the specimens' immersed surface… more
Date: July 28, 1992
Creator: Zapp, P.E.
Partner: UNT Libraries Government Documents Department
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Gold and silver in stream sediments from reconnaissance of 3 x 10/sup 5/ KM/sup 2/ of the western United States

Description: As part of the National Uranium Resource Evaluation (NURE) Program, Lawrence Livermore National Laboratory analyzed about 30,000 stream sediment samples from selected areas of the western United States for numerous chemical elements. The analysis was performed by neutron activation. Data for the concentrations of gold and silver for the samples in which they were detected are presented. Gold was detected in 310 samples, and silver in 19. Latitudes and longitudes are given for the sites from whi… more
Date: April 28, 1981
Creator: Van Konynenburg, R.A.; McMillan, G.G. & Higgins, G.H.
Partner: UNT Libraries Government Documents Department
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Massachussetts Institute of Technology progress report

Description: This is the thirty-sixth progress report of the Laboratory for Nuclear Science at the Massachusetts Institute of Technology. Progress during the period of November 30, 1954 through February 28, 1955 is reported.
Date: February 28, 1955
Partner: UNT Libraries Government Documents Department
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[Bond selective chemistry beyond the adiabatic approximation]. Technical progress report, September 15, 1992--June 14, 1993

Description: The adiabatic Born-Oppenheimer potential energy surface approximation is not valid for reaction of a wide variety of energetic materials and organic fuels; coupling between electronic states of reacting species plays a key role in determining the selectivity of the chemical reactions induced. This research program initially studies this coupling in (1) selective C-Br bond fission in 1,3- bromoiodopropane, (2) C-S:S-H bond fission branching in CH{sub 3}SH, and (3) competition between bond fissio… more
Date: February 28, 1993
Creator: Butler, Laurie J.
Partner: UNT Libraries Government Documents Department
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Analysis of E-N loadings

Description: Three E-N loaded tubes were dissolved, sampled and analyzed, starting November 9, 1960. The results of these analyses and an explanation of the methods used are the subject of this report. Each tube loading received an identification code in each facility in which it was processed. All of these codes are listed for future reference. Each batch of slugs was dissolved in a preflushed dissolver. When complete solution was indicated by a leveling off of the specific gravity, two 1 ml samples were t… more
Date: December 28, 1960
Creator: Zimmer, W. H.
Partner: UNT Libraries Government Documents Department
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Measurement of plutonium and americium volatilities under thermal process conditions. Final report

Description: We have used the transpiration method to measure volatilities of Pu and Am from PuO{sub 2}(s) and PuO{sub 2}/2% AmO{sub 2}(s) in the presence of steam and oxygen at temperatures of 1230--1430 K. We find the volatile species to be PuO{sub 2}(OH){sub 2}(g) and AmO{sub 2}(OH){sub 2}(g) at vapor pressures on the order of 10{sup {minus}10} atm and 10 {sup {minus}12} atm respectively under measurement conditions. For the Pu volatilization reaction, PuO{sub 2}(s) + 1/2 0{sub 2}(9) + H{sub 2}0(g) = PuO… more
Date: April 28, 1993
Creator: Krikorian, O. H.; Condit, R. H.; Fontes, A. S. Jr.; Fleming, D. L.; Magana, J. W.; Morris, W. F. et al.
Partner: UNT Libraries Government Documents Department
open access

Micro-Compatibility Testing of Polysulfone

Description: Polysulfone has many useful properties, and its compatibility with other materials is of interest. It is a tough, rigid, high-strength thermoplastic that maintains its properties over a wide temperature range. It is chemically resistant to mineral acids and alkali and moderately resistant to hydrocarbon oils; however, it is not resistant to polar organic solvents such as ketones, chlorinated hydrocarbons and aromatic hydrocarbons. Micro-compatibility experiments were initiated to determine poss… more
Date: September 28, 2004
Creator: Gregg, H; Harvey, C; Maxwell, R & Vance, A
Partner: UNT Libraries Government Documents Department
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