Performance of a high resolution, high flux density SGM undulator beamline at the ALS (open access)

Performance of a high resolution, high flux density SGM undulator beamline at the ALS

The performance of ALS beamline 7.0 is described. This is an integrated system for delivering radiation from a 5cm period undulator to spectroscopy and microscopy experiments across the range of photon energies from 60eV to 1200eV. The beamline is engineered to deliver the highest possible flux, with negligible deformation of the optic surfaces due to heating. Two experiment stations are served with rapid interchangeability. We report on the measured operational parameters, the resolution and flux delivered, and the refocus of the light into a small spot at the experiment.
Date: July 15, 1994
Creator: Warwick, T.; Heimann, P.; Mossessian, D.; McKinney, W. & Padmore, H.
Object Type: Article
System: The UNT Digital Library
GBRN/DOE Project: Dynamic enhanced recovery technologies. Quarterly technical report, January 1994--March 1994 (open access)

GBRN/DOE Project: Dynamic enhanced recovery technologies. Quarterly technical report, January 1994--March 1994

Global Basins Research Network will perform a field demonstration of their ``Dynamic Enhanced Recovery Technology`` to test the concept that the growth faults in EI-330 field are conduits through which producing reservoirs are charged and that enhanced production can be developed by producing directly from the fault zone. The site, operated by Penzoil, is located in 250 feet of water the productive depth intervals include 4000 to 9000 feet. Previous work, which incorporated pressure, temperature, fluid flow, heat flow, seismic, production, and well log data, indicated active fluid flow along fault zones. The field demonstration will be accomplished by drilling and production test of growth fault systems associated with the EI-330 field. The project utilizes advanced 3-D seismic analysis, geochemical studies, structural and stratigraphic reservoir characterization, reservoir simulation, and compact visualization systems. The quarterly progress reports contains accomplishments to date for the following tasks: Management start-up; database management; field and demonstration equipment; reservoir characterization, modeling; geochemistry; and data integration.
Date: April 15, 1994
Creator: Anderson, R. N.
Object Type: Report
System: The UNT Digital Library
Fundamental studies of catalytic processing of synthetic liquids. Final report (open access)

Fundamental studies of catalytic processing of synthetic liquids. Final report

Liquids derived from coal contain relatively high amounts of oxygenated organic compounds, mainly in the form of phenols and furans that are deleterious to the stability and quality of these liquids as fuels. Hydrodeoxygenation (HDO) using Mo/W sulfide catalysts is a promising method to accomplish this removal, but our understanding of the reactions occurring on the catalyst surface during HDO is very limited. Rather than attempting to examine the complexities of real liquids and catalysts we have adopted an approach here using model systems amenable to surface-sensitive techniques that enable us to probe in detail the fundamental processes occurring during HDO at the surfaces of well-defined model catalysts. The results of this work may lead to the development of more efficient, selective and stable catalysts. Above a S/Mo ratio of about 0.5 ML, furan does not adsorb on sulfided Mo surfaces; as the sulfur coverage is lowered increasing amounts of furan can be adsorbed. Temperature-programmed reaction spectroscopy (TPRS) reveals that C-H, C-C and C-O bond scission occurs on these surfaces. Auger spectra show characteristic changes in the nature and amount of surface carbon. Comparisons with experiments carried out with CO, H{sub 2} and alkenes show that reaction pathways include -- …
Date: June 15, 1994
Creator: Watson, P. R.
Object Type: Report
System: The UNT Digital Library
Methane Coupling by Membrane Reactor. Quarterly Technical Progress Report, December 25, 1993--March 24, 1994 (open access)

Methane Coupling by Membrane Reactor. Quarterly Technical Progress Report, December 25, 1993--March 24, 1994

A comparison study was made between a quartz tube non-porous packed bed reactor and a 40 Angstrom pore size porous VYCOR membrane reactor using two different methane coupling catalysts. Comparisons of reactor performance of the two reactors were made on the basis of amount of methane converted, C{sub 2} selectivities and the total C{sub 2} yields. Identical flow and temperature conditions were maintained for the two reactor systems for this study. These studies appear to indicate that improved performance can be obtained in VYCOR membrane reactors. The product stream from the tube side effluent of the porous VYCOR membrane reactor was superior to that from the quartz tube non-porous reactor in terms of improved C{sub 2} selectivity. At the present stage of research, the total effluent from the membrane reactor compared slightly less favorably to the effluent from a non-porous reactor, but studies are continuing on devising a reactor configuration which increases methane throughput in the tube side of the membrane reactor which is expected to demonstrate the overall superiority of the membrane reactor. Simulation results obtained by doing a parameter study for different reactor systems showed that, for the methane coupling reaction, where the desired product formation had a …
Date: June 15, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Experimental characterization of ALS undulator radiation (open access)

Experimental characterization of ALS undulator radiation

The radiation from the 5 cm period undulator at the Advanced Light Source (ALS) has been characterized using a transmission grating spectrometer. Spectral and angular distributions of radiation were measured for deflection parameter K values between 0.45 and 2.12 at low storage ring current (0.1--0.5 mA). From the calibration of the spectrometer, the absolute flux density of the undulator harmonics has been determined together with the spectral linewidth. The electron the beam emittance was determined by analyzing the angular distribution of the red-shifted fundamental. Comparison has been made with radiation calculations based upon the measured magnetic field data of the undulator. Including field errors, electron beam emittance and energy spread, good agreement is found between theoretically and experimentally determined harmonic widths and peak brightness.
Date: July 15, 1994
Creator: Heimann, P.; Mossessian, D.; Warwick, A.; Gullikson, E.; Wang, C.; Marks, S. et al.
Object Type: Article
System: The UNT Digital Library
The DOE subsurface microbial culture collection at Florida State University. Interim technical report, 15 August 1993--15 March 1994 (open access)

The DOE subsurface microbial culture collection at Florida State University. Interim technical report, 15 August 1993--15 March 1994

This research is a renewal of a project to support research in the Deep Microbiology Subprogram of the Subsurface Science Program, by maintaining a culture collection of microorganisms isolated from subsurface environments (SMCC). Approximately 2,400 new subsurface microbial isolates were incorporated into the SMCC during the period August 15, 1993 to March 15, 1994. Colony morphological characteristics were determined for each of the 2,400 newly incorporated strains. Cell morphological characteristics were determined for 1,100 of the new isolates, and 21 selected physiological traits were determined for 2,200 of the new isolates.
Date: March 15, 1994
Creator: Balkwill, D. L.
Object Type: Report
System: The UNT Digital Library
Mixed Waste Integrated Program Quality Assurance requirements plan (open access)

Mixed Waste Integrated Program Quality Assurance requirements plan

Mixed Waste Integrated Program (MWIP) is sponsored by the US Department of Energy (DOE), Office of Technology Development, Waste Management Division. The strategic objectives of MWIP are defined in the Mixed Waste Integrated Program Strategic Plan, and expanded upon in the MWIP Program Management Plan. This MWIP Quality Assurance Requirement Plan (QARP) applies to mixed waste treatment technologies involving both hazardous and radioactive constituents. As a DOE organization, MWIP is required to develop, implement, and maintain a written Quality Assurance Program in accordance with DOE Order 4700.1 Project Management System, DOE Order 5700.6C, Quality Assurance, DOE Order 5820.2A Radioactive Waste Management, ASME NQA-1 Quality Assurance Program Requirements for Nuclear Facilities and ANSI/ASQC E4-19xx Specifications and Guidelines for Quality Systems for Environmental Data Collection and Environmental Technology Programs. The purpose of the MWIP QA program is to establish controls which address the requirements in 5700.6C, with the intent to minimize risks and potential environmental impacts; and to maximize environmental protection, health, safety, reliability, and performance in all program activities. QA program controls are established to assure that each participating organization conducts its activities in a manner consistent with risks posed by those activities.
Date: April 15, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
United States Department of Energy Environmental Management Advisory Board: Public meeting (open access)

United States Department of Energy Environmental Management Advisory Board: Public meeting

This meeting of the Environmental Management Advisory Board was held to discuss environmental concerns that everybody has and to provide a strategy for dealing with the problems. Plans for the Environmental Management Programmatic Environmental Impact Statement are presented. A report is included of the subcommittee on institutional barriers to advanced technology use. The subcommittee on environmental restoration cost effectiveness also presents a report. The status of public involvement activities is evaluated. A presentation on the status of spent fuel management is included.
Date: July 15, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
300-FF-1 Operable Unit physical separation of soils pilot plant study (open access)

300-FF-1 Operable Unit physical separation of soils pilot plant study

Alternative Remedial Technologies, Inc. (ART) was selected in a competitive selection process to conduct a pilot study for the physical separation of soils in the North Process Pond of the 300 Area at the Hanford Site. In January 1994, ART mobilized its 15 tons-per-hour pilot plant to the site. The plant was initially staged in a commercial area to allow for pretest inspections and minor modifications. The plant was specifically designed for use as a physical separations unit and consisted of a feed hopper, wet screens, hydrocyclones, as well as settling and dewatering equipment. The plant was supported in the field with prescreening equipment, mobile generators, air compressors, and water storage tanks. The plant was moved into the surface contamination area on March 24, 1994. The testing was conducted during the period March 23, 1994 through April 13, 1994. Two soil types were treated during the testing: a natural soil contaminated with low levels of uranium, cesium, cobalt, and heavy metals, and a natural soil contaminated with a uranium carbonate material that was visually recognizable by the presence of a green sludge material in the soil matrix. The ``green`` material contained significantly higher levels of the same contaminants. Both source …
Date: January 15, 1994
Creator: Freeman-Pollard, J. R.
Object Type: Report
System: The UNT Digital Library
Clean Air Act. Revision 5 (open access)

Clean Air Act. Revision 5

This Reference Book contains a current copy of the Clean Air Act, as amended, and those regulations that implement the statute and appear to be most relevant to DOE activities. The document is provided to DOE and contractor staff for informational purposes only and should not be interpreted as legal guidance. This Reference Book has been completely revised and is current through February 15, 1994.
Date: February 15, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Radiological performance assessment for the E-Area Vaults Disposal Facility (open access)

Radiological performance assessment for the E-Area Vaults Disposal Facility

The E-Area Vaults (EAVs) located on a 200 acre site immediately north of the current LLW burial site at Savannah River Site will provide a new disposal and storage site for solid, low-level, non-hazardous radioactive waste. The EAV Disposal Facility will contain several large concrete vaults divided into cells. Three types of structures will house four designated waste types. The Intermediate Level Non-Tritium Vaults will receive waste radiating greater than 200 mR/h at 5 cm from the outer disposal container. The Intermediate Level Tritium Vaults will receive waste with at least 10 Ci of tritium per package. These two vaults share a similar design, are adjacent, share waste handling equipment, and will be closed as one facility. The second type of structure is the Low Activity Waste Vaults which will receive waste radiating less than 200 mR/h at 5 cm from the outer disposal container and containing less than 10 Ci of tritium per package. The third facility, the Long Lived Waste Storage Building, provides covered, long term storage for waste containing long lived isotopes. Two additional types of disposal are proposed: (1) trench disposal of suspect soil, (2) naval reactor component disposal. To evaluate the long-term performance of the …
Date: April 15, 1994
Creator: Cook, J. R. & Hunt, P. D.
Object Type: Report
System: The UNT Digital Library
Risk perception on management of nuclear high-level and transuranic waste storage (open access)

Risk perception on management of nuclear high-level and transuranic waste storage

The Department of Energy`s program for disposing of nuclear High-Level Waste (HLW) and transuranic (TRU) waste has been impeded by overwhelming political opposition fueled by public perceptions of actual risk. Analysis of these perceptions shows them to be deeply rooted in images of fear and dread that have been present since the discovery of radioactivity. The development and use of nuclear weapons linked these images to reality and the mishandling of radioactive waste from the nations military weapons facilities has contributed toward creating a state of distrust that cannot be erased quickly or easily. In addition, the analysis indicates that even the highly educated technical community is not well informed on the latest technology involved with nuclear HLW and TRU waste disposal. It is not surprising then, that the general public feels uncomfortable with DOE`s management plans for with nuclear HLW and TRU waste disposal. Postponing the permanent geologic repository and use of Monitored Retrievable Storage (MRS) would provide the time necessary for difficult social and political issues to be resolved. It would also allow time for the public to become better educated if DOE chooses to become proactive.
Date: August 15, 1994
Creator: Dees, L. A.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Theory of RBE. Annual technical progress report, 1 January--31 December, 1994 (open access)

Theory of RBE. Annual technical progress report, 1 January--31 December, 1994

In researching the theory of RBE, attention is focused on several topics of importance. They include: improving knowledge of the radial distribution of dose about the path of an energetic heavy ion in different media; calculations which have demonstrated that three Escherichia coli mutants behave as 1-hit detectors; lethal mutations in a nematode induced by gamma radiation and heavy ion beams; prevalence in cancer induction in the Harderian gland by HZE particles; subtleties in the analysis of radiobiological data; low-dose irradiation effects; high LET effects; cellular radiosensitivity parameters; and radial dose calculations for mammalian cells.
Date: June 15, 1994
Creator: Katz, R.
Object Type: Report
System: The UNT Digital Library
Atomic transport of oxygen (open access)

Atomic transport of oxygen

Atomic transport of oxygen in nonstoichiometric oxides is an extremely important topic which overlaps science and technology. In many cases the diffusion of oxygen controls sintering, grain growth, and creep. High oxygen diffusivity is critical for efficient operation of many fuel cells. Additionally, oxygen diffusivities are an essential ingredient in any point defect model. Secondary Ion Mass Spectrometry (SIMS) is the most accurate modern technique to measure oxygen tracer diffusion. This paper briefly reviews the principles and applications of SIMS for the measurement of oxygen transport. Case studies are taken from recent work on ZnO and some high-temperature superconductors.
Date: June 15, 1994
Creator: Routbort, J. L. & Tomlins, G. W.
Object Type: Article
System: The UNT Digital Library
Institute of Geophysics and Planetary Physics 1993 annual report, October 1, 1992--September 30, 1993 (open access)

Institute of Geophysics and Planetary Physics 1993 annual report, October 1, 1992--September 30, 1993

This report contains brief papers on the research being conducted at the Institute of Geophysics and Planetary Physics in 1993 in Geosciences, High-Pressure sciences, and Astrophysics.
Date: June 15, 1994
Creator: Ryerson, F. J. & Budwine, C. M.
Object Type: Report
System: The UNT Digital Library
Hanford Environmental Information System (HEIS). Volume 9, Field Quality Control subject area (open access)

Hanford Environmental Information System (HEIS). Volume 9, Field Quality Control subject area

The purpose of the HEIS Field Quality Control subject area is to manage the data acquired from field quality control samples. Field quality control samples are used to determine if sample contamination has occurred at some point in the sampling process. Four major types of data comprise the Field Quality Control subject area. Data about samples, spike samples, chemical and/or radiologic analysis of field quality control samples, and relationships between field quality control and non-quality control samples.
Date: April 15, 1994
Creator: Schreck, R. I.
Object Type: Report
System: The UNT Digital Library
Waste container fabrication from recycled DOE metal (open access)

Waste container fabrication from recycled DOE metal

The Department of Energy (DOE) has more than 2.5 million tons of radioactive scrap metal (RSM) that is either in inventory or expected to be generated over the next 25 years as major facilities within the weapons complex are decommissioned. Much of this material cannot be surface decontaminated. In an attempt to conserve natural resources and to avoid burial of this material at DOE disposal sites, options are now being explored to {open_quotes}beneficially reuse{close_quotes} this material in applications where small amounts of radioactivity are not a detriment. One example is where RSM is currently being beneficially used to fabricate shield blocks for use in DOE medium energy physics programs. This paper describes other initiatives now underway within DOE to utilize RSM to fabricate other products, such as radioactive waste shipping, storage and disposal containers.
Date: February 15, 1994
Creator: Motl, G. P. & Burns, D. D.
Object Type: Article
System: The UNT Digital Library
Geophysical survey for proposed borehole 199-K-108A, 100-K Area (open access)

Geophysical survey for proposed borehole 199-K-108A, 100-K Area

The objective of the electromagnetic survey was to locate subsurface obstructions that may affect the drilling of proposed borehole, 199-K-108A, about 75 ft southeast of the 105 KW Building, 100-K Area. Based upon the results of the survey, possible drill sites within the zone, with the least likelihood of encountering identified obstructions, were identified.
Date: February 15, 1994
Creator: Bergstrom, K. A. & Mitchell, T. H.
Object Type: Report
System: The UNT Digital Library
Changes in the flux of carbon between plants and soil microorganisms at elevated CO{sub 2}: Physiological processes with ecosystem-level implications. Progress report (open access)

Changes in the flux of carbon between plants and soil microorganisms at elevated CO{sub 2}: Physiological processes with ecosystem-level implications. Progress report

Our ability to interpret ecosystem response to elevated atmospheric CO{sub 2} is contingent on understanding and integrating a complex of physiological and ecological processes. However, we have a limited understanding of the combined effects of changes in plant carbon (C) allocation, microbial activity, and nitrogen (N) dynamics on the long-term response of terrestrial ecosystems to elevated CO{sub 2}. Individually, these factors are potent modifiers of C and N dynamics, and an in depth understanding of their interactions should provide insight into ecosystem-level responses to global climate change. Our research is aimed at quantifying the physiological mechanisms leading to increased fine root production, microbial biomass and rates of N cycling at elevated atmospheric CO{sub 2}. More specifically, we will experimentally manipulate soil nitrogen availability and atmospheric CO{sub 2} to understand how changes in plant resource availability influence the cycling of carbon between plants and soil microorganisms.
Date: May 15, 1994
Creator: Zak, D. R. & Pregitzer, K. S.
Object Type: Report
System: The UNT Digital Library
Radiological performance assessment for the E-Area Vaults Disposal Facility. Appendices A through M (open access)

Radiological performance assessment for the E-Area Vaults Disposal Facility. Appendices A through M

These document contains appendices A-M for the performance assessment. They are A: details of models and assumptions, B: computer codes, C: data tabulation, D: geochemical interactions, E: hydrogeology of the Savannah River Site, F: software QA plans, G: completeness review guide, H: performance assessment peer review panel recommendations, I: suspect soil performance analysis, J: sensitivity/uncertainty analysis, K: vault degradation study, L: description of naval reactor waste disposal, M: porflow input file. (GHH)
Date: April 15, 1994
Creator: Cook, J. R.
Object Type: Report
System: The UNT Digital Library
Wetland Treatment of Oil and Gas Well Wastewaters. Quarterly Technical Report, November 25, 1993--March 24, 1994 (open access)

Wetland Treatment of Oil and Gas Well Wastewaters. Quarterly Technical Report, November 25, 1993--March 24, 1994

In the third quarterly report, adsorption of heavy metals ions such as Cu(II) and Cr(VI) onto soils drawn from the laboratory-type wetland (LW) was shown to be weak. On the other hand, it was shown that modified-clays did adsorb Cr(VI) ions strongly at pH 4.5. Further, studies on the pH dependence of the adsorption of {beta}-naphthoic acid, (NA), a well-documented contaminant in many oil and gas well waste waters (4), onto modified-clays were undertaken and it was shown that uptake of NA by modified-clays was of the high affinity type at pH 4.5 and 7.0, but weak at pH 9.0. Adsorption of heavy metal ions, Cu{sup 2+}, and CR(VI) onto algae, a proposed wetland amendment, was carried out and the results were presented and discussed in the fourth quarterly report. Studies on the dynamics of uptake of phenol and NA by laboratory-type wetlands (LWs) were initiated and preliminary results indicated that both phenol and NA were sorbed onto components of LWs. A mass balance model has been developed to quantify the fate of phenol in LWs. The model is based on the postulate that the fate of phenol in LWs can be attributed to a combination of (1) evaporation of …
Date: April 15, 1994
Creator: Kadlec, R. H. & Srinivasan, K. R.
Object Type: Report
System: The UNT Digital Library
Performance of photon position monitors and stability of undulator beams at the Advanced Light Source (open access)

Performance of photon position monitors and stability of undulator beams at the Advanced Light Source

Position monitors are implemented in three undulator beamlines at the ALS. Their performance has been studied carefully on one of these lines and is reviewed. The monitors work as expected and show the ALS to be an exceptionally stable source of synchrotron radiation.
Date: July 15, 1994
Creator: Warwick, T.; Andresen, N.; Portmann, G. & Jackson, A.
Object Type: Article
System: The UNT Digital Library
Effects of battery technologies, driving patterns, and climate comfort control on the performance of electric vehicles (open access)

Effects of battery technologies, driving patterns, and climate comfort control on the performance of electric vehicles

A computer software package, EAGLES, has been developed at Argonne National Laboratory to analyze electric vehicle (EV) performance. In this paper, we present EAGLES predictions of EV driving range, acceleration rate, and energy consumption under various driving patterns, with different battery technologies, and with assumptions concerning use of air conditioners and/or heaters for climate comfort control. The specifications of a baseline, four-passenger EV for given design performance requirements are established, assuming urban driving conditions represented by the Los Angeles 92 (LA-92) driving cycle and using battery characteristics similar to those of the United States Advanced Battery Consortium (USABC) midterm battery performance goals. To examine the impacts of driving patterns, energy consumption is simulated under three different driving cycles: the New York City Cycle, the Los Angeles 92 Cycle, and the ECE-15 Cycle. To test the impacts of battery technologies, performance attributes of an advanced lead-acid battery, the USABC midterm battery goals, and the USABC long-term battery goals are used. Finally, EV energy consumption from use of air conditioners and/or heaters under different climates is estimated and the associated driving range penalty for one European city (Paris) and two United States cities (Chicago and Los Angeles) is predicted. The results of …
Date: May 15, 1994
Creator: Marr, W. W.; Wang, M. Q. & Santini, D. J.
Object Type: Article
System: The UNT Digital Library
High-level assessment of LANL ABC Design (open access)

High-level assessment of LANL ABC Design

An annual weapon`s grade Pu disposition goal should be stated and related to the amount of Pu that needs to be disposed of. It needs to be determined to what extent it is possible to destroy Pu without building up any new Pu, i.e., how realistic this goal is. The strong positive Doppler coefficient for a Pu core might require the addition of some fertile material to ensure a negative Doppler coefficient. This in turn will affect the net Pu disposition rate. If a fertile material is required throughout the life of the ABC to ensure a negative Doppler coefficient, the difference between the molten salt ABC and other reactors in regard to Pu disposition is not a principled difference anymore but one of degree. A rationale has then to be developed that explains why {open_quotes}x{close_quotes} kg production of fissile material are acceptable but {open_quotes}y{close_quotes} kg are not. It is important to determine how a requirement for electricity production will impact on the ABC design choices. It is conceivable that DOE will not insist on electricity generation. In this case advantage has to be taken in terms of design simplifications and relaxed operating conditions.
Date: April 15, 1994
Creator: unknown
Object Type: Report
System: The UNT Digital Library