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Characterization of Samples from Old Solvent Tanks S1 through S22

Description: The Old Radioactive Waste Burial Ground (ORWBG, 643-E) contains 22 old solvent tanks (S1 - S22) which were used to receive and store spent PUREX solvent from F- and H-Canyons. The tanks are cylindrical, carbon-steel, single-wall vessels buried at varying depths. A detailed description of the tanks and their history can be found in Reference 1. A Sampling and Analysis Plan for the characterization of the material contained in the old solvent tanks was developed by the Analytical Development Sect… more
Date: March 25, 1999
Creator: Leyba, J.D.
open access

CHARACTERIZATION OF SAMPLES FROM TANK 16H ANNULUS

Description: In support of the closure of Tank 16H, the remaining waste material in the tank annulus must be removed. Samples of the waste material from Tank 16H annulus were obtained and sent to Savannah River National Laboratory (SRNL) to determine the chemical and radiochemical composition prior to further waste removal. The three samples obtained from the Tank 16H annulus show some similarity as to the types of mineral phases present in the materials but differ in the relative amounts of each phase pres… more
Date: May 22, 2008
Creator: Hay, M
open access

Characterization of Samples from the Effluent Treatment Facility Evaporator Waste Concentrate Tank

Description: During October 1997, the ETF Evaporator Waste Concentrate Tank No. 2 was discovered to contain a significant accumulation of solid deposits. SRTC performed destructive and nondestructive examination of solid samples from the tank. The results of these tests indicate that the solids contain mixtures of sodium oxalate (65 percent), the sulfide enclathrated sodium aluminosilicate (30 percent), and iron oxide (5 percent).
Date: January 31, 1998
Creator: Wilmarth, W. R.
open access

Characterization of Savannah River Plant waste glass

Description: The objective of the glass characterization programs at the Savannah River Laboratory (SRL) is to ensure that glass containing Savannah River Plant high-level waste can be permanently stored in a federal repository, in an environmentally acceptable manner. To accomplish this objective, SRL is carrying out several experimental programs, including: fundamental studies of the reactions between waste glass and water, particularly repository groundwater; experiments in which candidate repository env… more
Date: January 1, 1985
Creator: Plodinec, M J
open access

Characterization of Scrap Materials for Mass Detonating Energetic Materials - Final Report, Project CU1194

Description: Military test and training ranges generate scrap materials from targets and ordnance debris. These materials are routinely removed from the range for recycling; however, energetic material residues in this range scrap has presented a significant safety hazard to operations personnel and damaged recycling equipment. The Strategic Environmental Research and Development Program (SERDP) sought proof of concept evaluations for monitoring technologies to identify energetic residues among range scrap.… more
Date: March 1, 2002
Creator: PHELAN, JAMES M.; BARNETT, JAMES L.; FISCHER, MARK & HOLLAND, RYAN
open access

Characterization of Second Harmonic Afterburner Radiation at the LCLS

Description: During commissioning of the Linac Coherent Light Source (LCLS) x-ray Free Electron Laser (FEL) at the SLAC National Accelerator Laboratory it was shown that saturation lengths much shorter than the installed length of the undulator line can routinely be achieved. This frees undulator segments that can be used to provide enhanced spectral properties and at the same time, test the concept of FEL Afterburners. In December 2009 a project was initiated to convert undulator segments at the down-beam … more
Date: September 14, 2010
Creator: Nuhn, Heinz-Dieter
open access

Characterization of Secondary Phases and Other Defects in CDZNTE

Description: Semiconducting CdZnTe or 'CZT' crystals are very suitable for use as a room temperature-based gamma radiation spectrometer. During the last decade, modifications in growth methods for CZT have significantly improved the quality of the produced crystals however there are material features that can influence the performance of these materials as radiation detectors. For example, various structural heterogeneities within the CZT crystals, such as, pipes, voids, polycrystallinity, and secondary pha… more
Date: June 30, 2010
Creator: Duff, M.
open access

Characterization of secondary phases in modified vertical bridgman growth czt

Description: CdZnTe or 'CZT' crystals are highly suitable for use as a room temperature based spectrometer for the detection and characterization of gamma radiation. Over the last decade, the methods for growing high quality CZT have improved the quality of the produced crystals however there are material features that can influence the performance of these materials as radiation detectors. For example, various structural heterogeneities within the CZT crystals, such as twinning, pipes, grain boundaries (po… more
Date: July 10, 2009
Creator: Duff, Martine
open access

Characterization of secondary solid waste anticipated from the treatment of trench water from Waste Area Grouping 6 at Oak Ridge National Laboratory, Oak Ridge, Tennessee

Description: This project was undertaken to demonstrate that new liquid waste streams, generated as a consequence of closure activities at Waste Area Grouping (WAG) 6, can be treated adequately by existing wastewater treatment facilities at Oak Ridge National Laboratory (ORNL) without producing hazardous secondary solid wastes. Previous bench-scale treatable studies indicated that ORNL treatment operations will adequately remove the contaminants although additional study was required in order to characteriz… more
Date: September 1, 1992
Creator: Kent, T. E. & Taylor, P. A.
open access

Characterization of secondary solid waste anticipated from the treatment of trench water from Waste Area Grouping 6 at Oak Ridge National Laboratory, Oak Ridge, Tennessee. Environmental Restoration Program

Description: This project was undertaken to demonstrate that new liquid waste streams, generated as a consequence of closure activities at Waste Area Grouping (WAG) 6, can be treated adequately by existing wastewater treatment facilities at Oak Ridge National Laboratory (ORNL) without producing hazardous secondary solid wastes. Previous bench-scale treatable studies indicated that ORNL treatment operations will adequately remove the contaminants although additional study was required in order to characteriz… more
Date: September 1, 1992
Creator: Kent, T. E. & Taylor, P. A.
open access

Characterization of Secondary Solid Wastes in Trench Water in Waste Area Grouping 6 at Oak Ridge National Laboratory, Oak Ridge, Tennessee

Description: This project was undertaken to demonstrate that new liquid waste streams, generated as a consequence of closure activities at Waste Area Grouping (WAG) 6 and other sites, can be treated at the existing wastewater treatment facilities at Oak Ridge National Laboratory (ORNL) to meet discharge requirements without producing hazardous secondary solid wastes. Previous bench and pilot-scale treatability studies have shown that ORNL treatment operations will adequately remove the contaminants and that… more
Date: February 1, 1994
Creator: Taylor, P. A. & Kent, T. E.
open access

Characterization of Sediments from the Soil Desiccation Pilot Test (SDPT) Site in the BC Cribs and Trenches Area

Description: This technical report documents the results of laboratory geochemical and hydrologic measurements of sediments collected from new borehole 299-E13-65 (C7047) and comparison of the results with those of nearby borehole 299-13E-62 (C5923) both drilled in the BC Cribs and Trenches Area. The total and water-leachable concentrations of key contaminants will be used to update contaminant-distribution conceptual models and to provide more data for improving baseline risk predictions and remedial alter… more
Date: September 25, 2009
Creator: Um, Wooyong; Truex, Michael J.; Valenta, Michelle M.; Iovin, Cristian; Kutnyakov, Igor V.; Chang, Hyun-shik et al.
open access

Characterization of sediments in the Clinch River, Tennessee, using remote sensing and multi-dimensional GIS techniques

Description: Remotely-sensed hydro-acoustic data were used as input to spatial extrapolation tools in a GIS to develop two- and three-dimensional models of sediment densities in the Clinch River arm of Watts Bar Reservoir, Tennessee. This work delineated sediment deposition zones to streamline sediment sampling and to provide a tool for estimating sediment volumes and extrapolating contaminant concentrations throughout the system. The Clinch River arm of Watts Bar Reservoir has been accumulating sediment-bo… more
Date: December 31, 1995
Creator: Levine, Daniel A.; Hargrove, William W. & Hoffman, Forrest
open access

Characterization of segregation in nickel and titanium aluminides

Description: Atom probe field ion microscopy has been used to characterize the distributions of microalloying additions in the microstructure of a variety of nickel and titanium aluminides. In Ni{sub 3}Al, boron additions were found to segregate to dislocations, low angle boundaries, stacking faults, antiphase boundaries, and grain boundaries. The boron and aluminum levels at grain boundaries were found to vary both from boundary to boundary and also along an individual boundary segment. In some cases, a bo… more
Date: March 1997
Creator: Miller, M. K.; Larson, D. J. & Russell, K. F.
open access

Characterization of SEI layers on LiMn2O4 cathodes with in-situ spectroscopic ellipsometry

Description: In situ spectroscopic ellipsometry was employed to study the initial stage of SEI layer formation on thin-film LiMn{sub 2}O{sub 4} electrodes. It was found that the SEI layer formed immediately upon exposure of the electrode to EC/DMC (1:1 by vol) 1.0 M LiPF{sub 6} electrolyte. The SEI layer thickness then increased in proportion to a logarithmic function of elapsed time. In comparison, the SEI layer thickness on a cycled electrode increased in proportion to a linear function of the number of c… more
Date: August 30, 2004
Creator: Lei, Jinglei; Li, Lingjie; Kostecki, Robert; Muller, Rolf & McLarnon, Frank
open access

Characterization of selected Ohio coals to predict their conversion behavior relative to 104 North American Coals. [Factors correlating with liquefaction behavior]

Description: Twenty-six coal samples from Ohio were collected as washed and seam samples, and lithobodies within the seams. Characterization of these samples included determination of % maceral, % anti R/sub max/, LTA, chlorine content and proximate/ultimate and qualitative mineral analyses. These data were compared to data from a similar project by Yarzab, R.F., et al., 1980 completed at Pennsylvania State University using tetralin as the hydrogen donor solvent. The characteristics of these coals were corr… more
Date: February 1, 1982
Creator: Whitacre, T. P.; Hunt, T. J. & Kneller, W. A.
open access

Characterization of selected waste tanks from the active LLLW system

Description: From September 1989 through January of 1990, there was a major effort to sample and analyze the Active Liquid-Low Level Waste (LLLW) tanks at ORNL which include the Melton Valley Storage Tanks (MVST) and the Bethel Valley Evaporator Service Tanks (BVEST). The purpose of this report is to summarize additional analytical data collected from some of the active waste tanks from November 1993 through February 1996. The analytical data for this report was collected for several unrelated projects whic… more
Date: August 1, 1996
Creator: Keller, J.M.; Giaquinto, J.M. & Griest, W.H.
open access

Characterization of selective binding of alkali cations with carboxylate by x-ray absorption spectroscopy of liquid microjets

Description: We describe an approach for characterizing selective binding between oppositely charged ionic functional groups under biologically relevant conditions. Relative shifts in K-shell x-ray absorption spectra of aqueous cations and carboxylate anions indicate the corresponding binding strengths via perturbations of carbonyl antibonding orbitals. XAS spectra measured for aqueous formate and acetate solutions containing lithium, sodium, and potassium cations reveal monotonically stronger binding of th… more
Date: January 8, 2008
Creator: Saykally, Richard J; Uejio, Janel S.; Schwartz, Craig P.; Duffin, Andrew M.; Drisdell, Walter S.; Cohen, Ronald C. et al.
open access

Characterization of semiconductor bridges (SCB) igniters for use in thermal batteries

Description: Semiconductor bridges (SCB) igniters were evaluated as possible replacements for conventional hot-wire igniters for use in thermal batteries. The all-fire and no-fire characteristics were determined using an up-down scheme; the Neyer/SENSIT program was used to analyze the data. The SCB igniters functioned with a higher no-fire level, relative to a hot-wire igniter, for a given all-fire level. This makes the SCB igniter safer and more reliable than its hot-wire counterpart. The SCB is very resis… more
Date: May 1, 1996
Creator: Bickes, R.W.; Guidotti, R.A. & McCampbell, C.B.
open access

Characterization of semiconductor surface-emitting laser wafers

Description: The development of epitaxial semiconductor surface-emitting lasers has begun in recent years. These lasers are ultra-short (few {mu}m) Fabry-Perot resonators comprising epitaxial multilayer semiconductor mirrors and quantum well active regions. The resonators are single crystals grown along the lasing axis by molecular beam epitaxy (MBE) or chemical vapor deposition (CVD). They offer significant advances over conventional cleaved, edge-emitting lasers for creating lasers with single elements of… more
Date: January 1, 1990
Creator: Gourley, P. L.; Vawter, G. A.; Brennan, T. M. & Hammons, B. E.
open access

Characterization of septic and drain system releases at Sandia National Laboratories, New Mexico

Description: Sandia National Laboratories/New Mexico (SNL/NM) is located in Albuquerque, New Mexico. The SNL/NM Environmental Restoration (ER) Project is tasked with performing the assessment and remediation of environmental releases resulting from the almost 50 years of engineering development and testing activities. Operable Unit 1295, Septic Tanks and Drainfields, includes inactive septic and drain systems at 23 separate ER sites that were listed as Solid Waste Management Units (SWMUs) in the SNL/NM Reso… more
Date: April 1, 1997
Creator: Sanders, M.R. & Galloway, R.B.
open access

Characterization of Settler Tank and KW Container Sludge Simulants

Description: The Sludge Treatment Project (STP), managed by CH2M Hill Plateau Remediation Company (CHPRC) has specified base formulations for non-radioactive sludge simulants for use in the development and testing of equipment for sludge sampling, retrieval, transport, and processing. In general, the simulant formulations are based on the average or design-basis physical and chemical properties obtained by characterizing sludge samples. The simulants include surrogates for uranium metal, uranium oxides (agg… more
Date: May 12, 2009
Creator: Burns, Carolyn A.; Luna, Maria & Schmidt, Andrew J.
open access

Characterization of Settler Tank, KW Container and KE Container Sludge Simulants

Description: The Sludge Treatment Project (STP), managed by CH2M Hill Plateau Remediation Company (CHPRC) has specified base formulations for non-radioactive sludge simulants for use in the development and testing of equipment for sludge sampling, retrieval, transport, and processing. In general, the simulant formulations are based on the average or design-basis physical and chemical properties obtained by characterizing sludge samples. The simulants include surrogates for uranium metal, uranium oxides (agg… more
Date: April 1, 2011
Creator: Burns, Carolyn A.; Luna, Maria L. & Schmidt, Andrew J.
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