Search Results

Advanced search parameters have been applied.
open access

Recovery and purification of nickel-63 from HFIR-irradiated targets

Description: The production of large quantities of high-specific-activity [sup 63]Ni (>10 Ci/g) requires both a highly enriched [sup 62]Ni target and a long irradiation period at high neutron flux. Trace impurities in the nickel and associated target materials are also activated and account for a significant fraction of the discharged activity and essentially all of the gamma activity. While most of these undesirable activation products can be removed as chloride complexes during anion exchange, chromium, p… more
Date: June 1, 1993
Creator: Williams, D. F.; O'Kelley, G. D.; Knauer, J. B.; Porter, C. E. & Wiggins, J. T.
Partner: UNT Libraries Government Documents Department
open access

High-level waste management and treatment program for The Analytical Laboratory

Description: A new program has been successfully implemented for the treatment, storage, and disposal of high-level radioactive mixed wastes generated during chemical and radiological analysis at the Pacific Northwest Laboratory in Richland, Washington. This shielded laboratory facility has effectively treated RCRA waste generated predominantly from analyses of radioactive samples obtained during the Tank Waste Characterization Program on the Hanford Site. Several batches of the radioactive mixed waste, gen… more
Date: February 1, 1993
Creator: King, A.G.; Baldwin, D.L.; Steele, R.T. & Poston, K.A.
Partner: UNT Libraries Government Documents Department
open access

Stabilized Platform for Tethered Balloon Soundings of Broadband Long- and Short-Wave Radiation

Description: Changes in the composition of trace gases in the earth's atmosphere have been reported by many observers, and a general concern has been expressed regarding possible changes to the earth's climate that may be caused by radiatively active gases introduced into the earth's atmosphere by man's activities. Radiatively active trace gases produce temperature changes in the earth's atmosphere through changes in radiative flux divergence. Our knowledge of and means of measuring radiative flux divergenc… more
Date: January 1, 1993
Creator: Alzheimer, J. M.; Anderson, G. A. & Whiteman, C. D.
Partner: UNT Libraries Government Documents Department
open access

[National Institute for Petroleum and Energy Research], monthly progress report for March 1993

Description: Accomplishments for the month of April are described briefly under tasks for: Energy Production Research; Fuels Research; and Supplemental Government Program. Energy Production Research includes: reservoir assessment and characterization; TORIS research support; development of improved microbial flooding methods; development of improved chemical flooding methods; development of improved alkaline flooding methods; mobility control and sweep improvement in chemical flooding; gas flood performance… more
Date: April 1, 1993
Partner: UNT Libraries Government Documents Department
open access

Investigation of the corrosion behavior of cooling coil material in a simulated concrete environment

Description: Pitting corrosion of the cooling coils embedded in the concrete roof of the waste tanks is one of the suspected causes of the recent cooling coil failures. Cyclic polarization tests were conducted to predict the threshold chloride level above which pitting would initiate. The threshold chloride level was determined to be 9000 ppM. Although these tests predict the electrochemical or corrosion behavior of the metal, they may not predict the severity of attack. Further tests which investigate the … more
Date: February 1, 1993
Creator: Wiersma, B.J.
Partner: UNT Libraries Government Documents Department
open access

Test plan for engineering scale electrostatic enclosure demonstration

Description: This test plan describes experimental details of an engineering-scale electrostatic enclosure demonstration to be performed at the Idaho National Engineering Laboratory in fiscal year (FY)-93. This demonstration will investigate, in the engineering scale, the feasibility of using electrostatic enclosures and devices to control the spread of contaminants during transuranic waste handling operations. Test objectives, detailed experimental procedures, and data quality objectives necessary to perfo… more
Date: February 1, 1993
Creator: Meyer, L.C.
Partner: UNT Libraries Government Documents Department
open access

Performance effects of coal-derived contaminants on the carbonate fuel cell

Description: Coal-derived contaminant studies have been pursued at ERC since the early 1980's when the pace of carbonate fuel cell development began to markedly increase. Initial work was concerned with performance effects on laboratory and bench-scale carbonate fuel cells primarily due to sulfur compounds. Results have now also been obtained with respect to nine additional coal-gas contaminants, including volatile trace metal species. Thermochemical calculations, out-of-cell experiments, and cell performan… more
Date: January 1, 1993
Creator: Pigeaud, A. (Energy Research Corp., Danbury, CT (United States)) & Wilemski, G. (Physical Sciences, Inc., Andover, MA (United States))
Partner: UNT Libraries Government Documents Department
open access

Final report on proposal to develop and test a membrane sampling module for the extraction of volatile organic compounds from water

Description: A new technique is describe for the direct detection of volatile organic compounds in aqueous solutions at levels in the parts per trillion range. The sample is enriched in analyte in two consecutive stages, one utilizes a semi-permeable membrane interface and the other a jet separator. The analyte solution is sampled as it flows coaxially over a semi-permeable capillary membrane, the interior of which is continuously purged by helium. The permeate is pneumatically transported to the mass spect… more
Date: June 29, 1993
Creator: Cooks, R. G.
Partner: UNT Libraries Government Documents Department
open access

Novel Mass Spectrometric Instrument for Gaseous and Particulate Characterization and Monitoring. Technical Progress Report, September 25, 1992--December 31, 1992

Description: SRI International will develop a unique new instrument that will be capable of providing real-time, quantitative, chemical characterization of gaseous and particulate pollutants generated from DOE waste cleanup activities. The instrument will be capable of detecting and identifying volatile organic compounds, polynuclear aromatic hydrocarbons, heavy metals, and transuranic species released during waste cleanup activities. The instrument will be unique in its ability to detect and quantify in re… more
Date: February 1993
Creator: Coggiola, Michael J.
Partner: UNT Libraries Government Documents Department
open access

Hydrogen uptake into silicon from an ECR plasma

Description: The concentration of hydrogen in solution near the surface of silicon exposed to an electron cyclotron resonance (ECR) plasma was determined by measuring the flux of hydrogen permeating to subsurface microcavities. The energy and flux of hydrogen impinging onto the surface from the plasma was also measured. A model is described which predicts the concentration of hydrogen in solution from the energy and flux of the impinging hydrogen. The measured solution concentrations were {approximately}10{… more
Date: December 1, 1993
Creator: Wampler, W. R. & Barbour, J. C.
Partner: UNT Libraries Government Documents Department
open access

Test plan for engineering scale electrostatic enclosure demonstration

Description: This test plan describes experimental details of an engineering-scale electrostatic enclosure demonstration to be performed at the Idaho National Engineering Laboratory in fiscal year (FY)-93. This demonstration will investigate, in the engineering scale, the feasibility of using electrostatic enclosures and devices to control the spread of contaminants during transuranic waste handling operations. Test objectives, detailed experimental procedures, and data quality objectives necessary to perfo… more
Date: February 1, 1993
Creator: Meyer, L. C.
Partner: UNT Libraries Government Documents Department
open access

Investigation of the corrosion behavior of cooling coil material in a simulated concrete environment

Description: Pitting corrosion of the cooling coils embedded in the concrete roof of the waste tanks is one of the suspected causes of the recent cooling coil failures. Cyclic polarization tests were conducted to predict the threshold chloride level above which pitting would initiate. The threshold chloride level was determined to be 9000 ppM. Although these tests predict the electrochemical or corrosion behavior of the metal, they may not predict the severity of attack. Further tests which investigate the … more
Date: February 1, 1993
Creator: Wiersma, B. J.
Partner: UNT Libraries Government Documents Department
open access

[National Institute for Petroleum and Energy Research], monthly progress report for March 1993

Description: Accomplishments for the month of April are described briefly under tasks for: Energy Production Research; Fuels Research; and Supplemental Government Program. Energy Production Research includes: reservoir assessment and characterization; TORIS research support; development of improved microbial flooding methods; development of improved chemical flooding methods; development of improved alkaline flooding methods; mobility control and sweep improvement in chemical flooding; gas flood performance… more
Date: April 1, 1993
Partner: UNT Libraries Government Documents Department
open access

Sampling and analysis of natural gas trace constituents

Description: Major and minor components of natural gas are routinely analyzed by gas chromatography (GC), using a thermal conductivity (TC). The best results obtained by these methods can report no better than 0.01 mole percent of each measured component. Even the extended method of analysis by flame ionization detector (FID) can only improve on the detection limit of hydrocarbons. The gas industry needs better information on all trace constituents of natural gas, whether native or inadvertently added durin… more
Date: September 1, 1993
Creator: Attari, A. & Chao, S.
Partner: UNT Libraries Government Documents Department
open access

Lot No. 2 of Frit 202 for DWPF cold runs

Description: In the DWPF (Defense Waste Processing Facility), glass forming chemicals will be added to the waste in the form of premelted glass frit. On an oxide weight basis, DWPF glass will consist of approximately 64 wt% glass frit, 8 wt% precipitate hydrolysis aqueous product, and 28 wt% sludge. The glass frit and the precipitate hydrolysis aqueous product together make up what is called the glass-former composition. Current plants are to control the composition of the frit through the procurement speci… more
Date: April 5, 1993
Creator: Schumacher, R. F.
Partner: UNT Libraries Government Documents Department
open access

Characterization of past and present solid waste streams from 231-Z

Description: During the next two decades the transuranic (TRU) wastes now stored in the burial trenches and storage facilities at the Hanford Site are to be retrieved, processed at the Waste Receiving and Processing Facility, and shipped to the Waste Isolation Pilot Plant near Carlsbad, New Mexico for final disposal. Over 8% of the TRU waste to be retrieved for shipment to the Waste Isolation Pilot Plant has been generated at the Plutonium Metallurgy Laboratory (231-Z) Facility. The purpose of this report i… more
Date: June 1, 1993
Creator: Pottmeyer, J. A.; DeLorenzo, D. S.; Weyns-Rollosson, M. I.; Berkwitz, D. E.; Vejvoda, E. J. & Duncan, D. R.
Partner: UNT Libraries Government Documents Department
open access

Solid-state, resistive hydrogen sensors for safety monitoring

Description: Solid-state, resistive hydrogen sensors have been designed and fabricated at Oak Ridge National Laboratory. Sensor response has been successfully tested with H{sub 2} gas in argon and air under ambient temperature and pressure, while immersed in transformer oil at temperatures between 25{degrees}C and 90{degrees}C, and under site-specific conditions at Westinghouse Savannah River Co. Current versions of the sensors (25 {times} 25 {times} 0.6 mm) are small enough to be incorporated into hand-hel… more
Date: July 1, 1993
Creator: Hoffheins, B. S.; Lauf, R. J.; Fleming, P. H. & Nave, S. E.
Partner: UNT Libraries Government Documents Department
open access

Shale oil value enhancement research. First quarterly technical progress report, March 1, 1993--May 31, 1993

Description: Concurrent progress is being made in all key areas, namely, separation, characterization and market assessment. The market area, not one of our traditionally strong areas, has been going better than expected. We believe this is due mainly to the emerging interest in new and unconventional materials. The characterization work has been progressing solidly with the fundamental Z-BASIC correlations providing information not heretofore available in the chemical literature. Our agreement with Hewlett… more
Date: June 25, 1993
Creator: Bunger, J. W.; Russell, C. P.; Devineni, P. A. V.; Cogswell, D. E. & Wiser, J. W.
Partner: UNT Libraries Government Documents Department
open access

Iodine evolution and pH control

Description: pH is the major factor in determining the extent of I{sub 2} in solution. In containment where no pH-control chemicals are present, the acidity or basicity of the water pool will be determined by materials that are introduced into containment as a result of the accident itself. These materials may be fission products (i.e., cesium compounds), thermally produced products (i.e., core-concrete aerosols), or compounds produced by radiation (i.e., nitric acid). In situations where pH levels fall bel… more
Date: October 1, 1993
Creator: Beahm, E. C.; Lorenz, R. A. & Weber, C. F.
Partner: UNT Libraries Government Documents Department
open access

Analyzing organic sulfur in coal/char: Integrated mild degradation/XANES methods. [Quarterly] technical report, September 1--November 30, 1993

Description: To address the acid rain problem effort has been expended on finding methods for the removal of sulfur from coal. Despite these efforts organic sulfur has proven very difficult to remove. Perhaps the single most important reason for this is the fact that the organic sulfur in coal remains very poorly characterized. Thus, objective of this study is to combine advanced nondestructive and advanced destructive methods of sulfur analysis for characterization of the organic sulfur in Illinois Basin c… more
Date: December 31, 1993
Creator: Palmer, S. R. & Huffman, G. P.
Partner: UNT Libraries Government Documents Department
open access

The Direct Sampling Ion Trap Mass Spectrometer for the Rapid Analysis of Volatile Organic Contaminants in Groundwater Samples

Description: Analytical results of volatile organic contaminant (VOC) concentrations in groundwater samples from A/M Area obtained using a direct sampling ion trap mass spectrometer (DSITMS) and a gas chromatograph (GC) with an electron capture detector (ECD) were comparable. Replicate water samples were collected at the Integrated Demonstration Site during four bi-weekly sampling periods and analyzed by both instruments. The calibration curves prepared for both the DSITMS and GC-ECD are essentially linear … more
Date: December 31, 1993
Creator: Eddy-Dilek, C. A.; Rossabi, J. & Keenan, M. A.
Partner: UNT Libraries Government Documents Department
open access

A proposal for the analysis of nitrocellulose in soil or compost

Description: Currently, there is no ``standard`` analytical method for the measurement of nitrocellulose (NC) in soil or compost. At the present, an indirect method is used. This method extracts the NC from soil or compost, separates out nitrate or nitrite ions, hydrolyzes the NC nitrogroups, and measures the liberated nitrite colorimetrically. Major weaknesses are that the %N content or degree of nitrate substitution (DS) of the NC must be known to convert the nitrate measurements to NC concentrations, inc… more
Date: December 31, 1993
Creator: Griest, W. H.
Partner: UNT Libraries Government Documents Department
open access

Radiolytic bubble formation and level changes in simulated high-level waste salts and sludges -- application to Savannah River Site and Hanford Storage tanks

Description: Radiolytically-produced bubbles of trapped gas are observed in simulated high-level waste (HLW) damp salt cake exposed to Co-60 gamma radiation. As the damp salt cake is irradiated, its volume increases due to the formation of trapped gas bubbles. Based on the increase in volume, the rate of trapped gas generation varies between 0.04 and 0.2 molecules/100 eV of energy deposited in the damp salt cake. The maximum volume of trapped gas observed in experiments is in the range 21--26 vol %. After r… more
Date: December 31, 1993
Creator: Walker, D. D.; Crawford, C. L. & Bibler, N. E.
Partner: UNT Libraries Government Documents Department
open access

Analysis of volatile organic compounds (VOCs) in A/M Area Crouch Branch (Cretaceous) Aquifer characterization samples: 1993

Description: Samples were collected during the A/M Area Crouch Branch (Cretaceous) Aquifer Characterization (Phase I) Program. The samples were analyzed for chlorinated VOCs by the Savannah River Technology Center (SRTC) and MicroSeeps Ltd. All samples were sealed in the field immediately upon retrieval of the core and subsampling. A total of 113 samples locations were selected for analysis. The Environmental Sciences Section (ESS) of SRTC analyzed all locations in duplicate (226 samples). MicroSeeps Ltd wa… more
Date: December 6, 1993
Creator: Looney, B. B.; Haselow, J. S.; Keenan, M. A.; Van Pelt, R.; Eddy-Dilek, C. A.; Rossabi, J. et al.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen