Resource Type

States

Preliminary evaluation of neutron capture cross sections for /sup 144/Sm, /sup 145/Sm and /sup 145/Pm (open access)

Preliminary evaluation of neutron capture cross sections for /sup 144/Sm, /sup 145/Sm and /sup 145/Pm

We have made preliminary neutron-capture cross-section calculations of the Hauser-Feshbach type for the isotopes /sup 144/Sm, /sup 145/Sm, and /sup 145/Pm to investigate the production of radioactive /sup 145/Pm by neutron capture on the stable isotope /sup 144/Sm. The calculations were made for incident neutron energies from 2.5 MeV to about 1/sup -4/ or 10/sup -5/ MeV, wherever the first unbound resonance was estimated to occur in each case. At that energy, the calculated value was reduced by a somewhat arbitrary factor, and the excitation function extended down to thermal energy using a (E/sub n/)/sup -1/2/ energy dependence. Since very large uncertainties are associated with the position and magnitude of the first unbound resonance and the subsequent extrapolation back to thermal energy, the cross sections in this low-energy region should not be considered more accurate than +- a factor of 10. For incident neutron energies above each step, the calculations represent an average through the separated and overlapping resonance regions and may be accurate to better than +- a factor of 2. 18 refs., 7 figs., 5 tabs.
Date: February 13, 1986
Creator: Gardner, D. G. & Gardner, M. A.
System: The UNT Digital Library
Consolidation and shear failure leading to subsidence and settlement. Final report (open access)

Consolidation and shear failure leading to subsidence and settlement. Final report

Subsidence and settlement are phenomena that are much more destructive than generally thought. In shallow land burials they may lead to cracking of the overburden and eventual exposure and escape of waste material. The primary causes are consolidation and cave-ins. Laboratory studies performed at Los Alamos permit us to predict settlement caused by consolidation or natural compaction of the crushed tuff overburden. We have also investigated the shear failure characteristics of crushed tuff that may lead to subsidence. Examples of expected settlement and subsidence are calculated based on the known geotechnical characteristics of crushed tuff. The same thing is done for bentonite/tuff mixes because some field experiments were performed using this additive (bentonite) to reduce the hydraulic conductivity of the crushed tuff. Remedial actions, i.e., means to limit the amount of settlement, are discussed. We finally discuss our field experiment, which studies the influence of subsidence on layered systems in general and on biobarriers in particular. The share of the produced cavities is compared with cavities produced by idealized voids in an idealized environment. Study of root penetration at subsidence sites gives us an indication of the remaining degree of integrity. 30 refs., 24 figs., 19 tabs.
Date: February 1, 1986
Creator: Abeele, W.; Nyhan, J. W.; Hakonson, T. E.; Drennon, B. J.; Lopez, E. A.; Herrera, W. J. et al.
System: The UNT Digital Library
Discernment of two opposing reports on the hydrological effects of a hydrothermal power plant (open access)

Discernment of two opposing reports on the hydrological effects of a hydrothermal power plant

Two evaluations to determine the hydrological effects of a 50-megawatt hydrothermal power plant in the Jemez Mountains give dramatically different results. One shows little effect; the other, a large one. The treatments agree on some thermal-zone water supplies to the Jemez River but not on the expected changes in these flows. The primary areas of disagreement appear to be the total volume of water in the reservoir and the movement of this water to the point of withdrawal. The author (a nonhydrologist) has compared these reports but leaves final judgment of the accuracy of either evaluation for some erudite hydrologists, as some experimental data and model development are needed.
Date: June 1, 1986
Creator: Williams, J. M.
System: The UNT Digital Library
Ancillary effects of selected acid deposition control policies (open access)

Ancillary effects of selected acid deposition control policies

NAPAP is examining a number of potential ways to reduce the precursors (sulfur dioxide and nitrogen oxides) to acid deposition. However, the policies to reduce acid deposition will have other physical, biological and economic effects unrelated to acid deposition. For example, control policies that reduce sulfur dioxide emissions may also increase visibility. The effects of an acid deposition policy that are unrelated to acid deposition are referred to as ''ancillary'' effects. This reserch identifies and characterizes the principle physical and economic ancillary effects associated with acid deposition control and mitigation policies. In this study the ancillary benefits associated with four specific acid deposition policy options were investigated. The four policy options investigated are: (1) flue gas desulfurization, (2) coal blending or switching, (3) reductions in automobile emissions of NO/sub x/, and (4) lake liming. Potential ancillary benefits of each option were identified and characterized. Particular attention was paid to the literature on economic valuation of potential ancillary effects.
Date: August 1, 1986
Creator: Moe, R.J.; Lyke, A. J. & Nesse, R. J.
System: The UNT Digital Library
MINIMARS conceptual design: Final report (open access)

MINIMARS conceptual design: Final report

This volume contains the following sections: (1) fueling systems; (2) blanket; (3) alternative blanket concepts; (4) halo scraper/direct converter system study and final conceptual design; (5) heat-transport and power-conversion systems; (6) tritium systems; (7) minimars air detritiation system; (8) appropriate radiological safety design criteria; and (9) cost estimate. (MOW)
Date: September 1, 1986
Creator: Lee, J. D.
System: The UNT Digital Library
Feed Materials Production Center. Final phase-in report volume 1 of 15 operations and maintenance, October 25, 1985--December 31, 1985 (open access)

Feed Materials Production Center. Final phase-in report volume 1 of 15 operations and maintenance, October 25, 1985--December 31, 1985

The basic purpose of the transition program in the operations area was to obtain a detailed understanding of the FMPC operations with emphasis on equipment and organization, Also considered in this evaluation were several extant conditions at FMPC which may have significant impact on initiatives adopted in the operations area. These conditions are as follows: capital expenditures over the last several years averaged less than 20% of what might be considered minimum to sustain such a facility in a good operating condition; the production load is ramping up placing greater demands on an old facility; the workforce is relatively inexperienced (68% with less than five (5) years) at FMPC; plans are in place to institute major upgrading of FMPC facilities; the RFP described the need for a major effort in the Environment, Safety and Health Area. Considering the above concerns, the transition program was focused in the following areas: Procedures - An inexperienced workforce operating in an atmosphere requiring rigid compliance with more rigorous environmental criteria necessitates clear, concise up-to-date procedures to enhance performance; Training - New equipment, new people and rigorous environmental constraints demand an aggressive, focused training program. Equipment - Site conditions are not conducive to reliable equipment …
Date: January 17, 1986
Creator: Britton, W. H.
System: The UNT Digital Library
Electric energy savings from new technologies (open access)

Electric energy savings from new technologies

Purpose of the report is to provide information about the electricity-saving potential of new technologies to OCEP that it can use in developing alternative long-term projections of US electricity consumption. Low-, base-, and high-case scenarios of the electricity savings for ten technologies were prepared. The total projected annual savings for the year 2000 for all ten technologies were 137 billion kilowatt hours (BkWh), 279 BkWh, and 470 BkWh, respectively, for the three cases. The magnitude of these savings projections can be gauged by comparing them to the Department's reference case projection for the 1985 National Energy Policy Plan. In the Department's reference case, total consumption in 2000 is projected to be 3319 BkWh. Thus, the savings projected here represent between 4% and 14% of total consumption projected for 2000. Because approximately 75% of the base-case estimate of savings are already incorporated into the reference forecast, reducing projected electricity consumption from what it otherwise would have been, the savings estimated here should not be directly subtracted from the reference forecast.
Date: January 1, 1986
Creator: Moe, R. J.; Harrer, B. J.; Kellogg, M. A.; Lyke, A. J.; Imhoff, K. L. & Fisher, Z. J.
System: The UNT Digital Library
Pacific Northwest Laboratory annual report for 1985 to the DOE Office of Energy Research. Part 1. Biomedical sciences (open access)

Pacific Northwest Laboratory annual report for 1985 to the DOE Office of Energy Research. Part 1. Biomedical sciences

This report summarizes progress on OHER biomedical and health-effects research conducted at PNL in FY 1985 to develop information for a comprehensive understanding of the interaction of energy-related radiation and chemicals with man. Our continuing emphasis on decreasing the uncertainty of health-effects risk estimates to man from existing and/or developing energy-related technologies supports the DOE goal of increasing and diversifying national energy resources and decreasing risks to human health. The report is arranged to reflect the PNL research relative to OHER programmatic needs. The first section concerns evaluation of possible health effects among nuclear workers. The next two sections, which contain reports of health-effects research in biological systems, include health effects of radiation and health effects of chemical mixtures. The last section is related to medical applications of nuclear technology.
Date: February 1, 1986
Creator: Park, J. F.
System: The UNT Digital Library
Electric energy savings from new technologies. Revision 1 (open access)

Electric energy savings from new technologies. Revision 1

Purpose of the report is to provide information about the electricity-saving potential of new technologies to OCEP that it can use in developing alternative long-term projections of US electricity consumption. Low-, base-, and high-case scenarios of the electricity savings for 10 technologies were prepared. The total projected annual savings for the year 2000 for all 10 technologies were 137 billion kilowatt hours (BkWh), 279 BkWh, and 470 BkWh, respectively, for the three cases. The magnitude of these savings projections can be gauged by comparing them to the Department's reference case projection for the 1985 National Energy Policy Plan. In the Department's reference case, total consumption in 2000 is projected to be 3319 BkWh. Because approximately 75% of the base-case estimate of savings are already incorporated into the reference projection, only 25% of the savings estimated here should be subtracted from the reference projection for analysis purposes.
Date: September 1, 1986
Creator: Harrer, B. J.; Kellogg, M. A.; Lyke, A. J.; Imhoff, K. L. & Fisher, Z. J.
System: The UNT Digital Library
Residential solar photovoltaic systems: Final report for the Northeast Residential Experiment Station (open access)

Residential solar photovoltaic systems: Final report for the Northeast Residential Experiment Station

This report covers research and development work conducted by the MIT Energy Lab. from July 1982 through June 1986. This Energy Lab. work in the field of solar photovoltaic systems followed six years of similar work at the MIT Lincoln Lab. under the same contract with the US DOE. The final report from the Lincoln Lab. period was published by Lincoln Lab. in 1983. During the period of Energy Lab. involvement, the project focused on the refinement of residential scale, roof-mounted photovoltaic systems for application in the northeastern US. Concurrent with the conclusion of MIT`s involvement, the New England Electric Co. is building a major field test of residential photovoltaics in Gardner, Massachusetts to determine experimentally the effects of photovoltaics on electric power company operations. Using systems designs and technology developed at MIT, the long-term performance of these thirty residential systems in Gardner will provide a measure of our success.
Date: June 1, 1986
Creator: Kern, E. C. Jr.
System: The UNT Digital Library
Two-dimensional flux-corrected transport solver for convectively dominated flows (open access)

Two-dimensional flux-corrected transport solver for convectively dominated flows

A numerical technique designed to solve a wide class of convectively dominated flow problems is presented. An attractive feature of the technique is its ability to resolve the behavior of field quantities possessing large gradients and/or shocks. The method is a finite-difference technique known as flux-corrected transport (FCT) that maintains four important numerical considerations - stability, accuracy, monotonicity, and conservation. The theory and methodology of two-dimensional FCT is presented. The method is applied in demonstrative example calculations of a 2-D Riemann problem with known exact solutions and to the Euler equations in a study of classical Rayleigh-Taylor and Kelvin-Helmholtz instability problems. The FCT solver has been vectorized for execution on the Cray 1S - a typical call with a 50 by 50 mesh requires about 0.00428 cpu seconds of execution time per call to the routine. Additionally, we have maintained a modular structure for the solver that eases its implementation. Fortran listings of two versions of the 2-D FCT solvers are appended with a driver main program illustrating the call sequence for the modules. 59 refs., 49 figs.
Date: January 1, 1986
Creator: Baer, M.R. & Gross, R.J.
System: The UNT Digital Library
Laser Program annual report, 1985 (open access)

Laser Program annual report, 1985

This volume presents the unclassified activities and accomplishments of the Inertial Confinement Fusion and Advanced Laser Development elements of the Laser Program at the Lawrence Livermore National Laboratory for the calendar year 1985. This report has been organized into major sections that correspond to our principal technical activities. Section 1 provides an overview. Section 2 comprises work in target theory, design, and code development. Target development and fabrication and the related topics in materials science are contained in Section 3. Section 4 presents work in experiments and diagnostics and includes developments in data acquisition and management capabilities. In Section 5 laser system (Nova) operation and maintenance are discussed. Activities related to supporting laser and optical technologies are described in Section 6. Basic laser research and development is reported in Section 7. Section 8 contains the results of studies in ICF applications where the work reported deals principally with the production of electric power with ICF. Finally, Section 9 is a comprehensive discussion of work to date on solid state lasers for average power applications. Individual sections, two through nine, have been cataloged separately.
Date: November 1, 1986
Creator: Rufer, M.L. & Murphy, P.W. (eds.)
System: The UNT Digital Library
Fusion Energy Division annual progress report, period ending December 31, 1985 (open access)

Fusion Energy Division annual progress report, period ending December 31, 1985

Separate abstracts were prepared for nine of the included sections. (MOW)
Date: July 1, 1986
Creator: Morgan, O. B., Jr.; Berry, L. A. & Sheffield, J.
System: The UNT Digital Library
Mechanical Engineering Department engineering research: Annual report, FY 1986 (open access)

Mechanical Engineering Department engineering research: Annual report, FY 1986

This report provides information on the five areas of research interest in LLNL's Mechanical Engineering Department. In Computer Code Development, a solid geometric modeling program is described. In Dynamic Systems and Control, structure control and structure dynamics are discussed. Fabrication technology involves machine cutting, interferometry, and automated optical component manufacturing. Materials engineering reports on composite material research and measurement of molten metal surface properties. In Nondestructive Evaluation, NMR, CAT, and ultrasound machines are applied to manufacturing processes. A model for underground collapse is developed. Finally, an alternative heat exchanger is investigated for use in a fusion power plant. Separate abstracts were prepared for each of the 13 reports in this publication. (JDH)
Date: December 1, 1986
Creator: Denney, R. M.; Essary, K. L.; Genin, M. S.; Highstone, H. H.; Hymer, J. D. & Taft, S. O. (eds.)
System: The UNT Digital Library
Bibliographies of Industrial Interest : Thermodynamic Measurements on the Systems CO₂-H₂O, CuCl₂-H₂0,H₂SO₄-H₂O, NH₃-H₂O, H₂S-H₂O, ZnCl₂-H₂Oand H₃PO₄-H₂O (open access)

Bibliographies of Industrial Interest : Thermodynamic Measurements on the Systems CO₂-H₂O, CuCl₂-H₂0,H₂SO₄-H₂O, NH₃-H₂O, H₂S-H₂O, ZnCl₂-H₂Oand H₃PO₄-H₂O

Abstract: Contained herein are bibliographies of Sources of experimental and correlated thermodynamic data for seven binary aqueous mixtures of industrial importance, namely mixtures of CO2, H2S, NH3, H2S0, H3P4, CuCl2 and ZnCl2 with water. The categories of equilibrium data included in the bibliographies are activity and osmotic coefficients, equilibria in solution, enthalpies and heat capacity data, vapor-liquid equilibria, and phase equilibrium data.
Date: September 1986
Creator: Staples, B. R.; Garvin, D.; Smith-Magowan, D.; Jobe, T. L., Jr.; Jackson, C. R.; Wobbeking, T. F. et al.
System: The UNT Digital Library
New developments in biotechnology: field-testing engineered organisms: genetic and ecological issues: contractor documents, volume 2 (open access)

New developments in biotechnology: field-testing engineered organisms: genetic and ecological issues: contractor documents, volume 2

This report includes these topics: Ecological issues relevant to environmental applications of genetically altered organisms / Elliott A. Norse -- An ecosystems approach to potential perturbations of energy flow and nutrient cycles associated with environmental applications of genetically altered organisms / David C. Coleman and Robert E. Hodson -- Ecological impact of genetically engineered organisms on ecosystems / James R. Gosz, C.N. Dahm, and Patrick W. Flanagan -- The genetic basis of changes in host range or habitat / Adrianne Massey and Fred Gould.
Date: December 2, 1986
Creator: United States. Congress. Office of Technology Assessment
System: The UNT Digital Library
Radial Fokker-Planck model for plasmas confined by magnetic mirror fields (open access)

Radial Fokker-Planck model for plasmas confined by magnetic mirror fields

A time-dependent computer model has been developed for the spatially dependent distribution function f(r,v,t). An orbit averaged Fokker-Planck equation treats Coulomb collisions and various atomic physics processes. The motivation for the present code is to provide an accurate treatment of gyro-radius effects and realistic beam geometries which have been neglected in previous Fokker-Planck codes. Finite width beams may be offset from the plasma center to determine beam injection for build-up studies. The inclusion of a finite gyro-radius is essential for studying radial transport due to both quasilinear fluctuations and charge exchange collisions. Charge exchange with energetic beam atoms and plasma erosion due to charge-exchange collisions with thermal gas are both included. Quasilinear diffusion terms include the effects of turbulent diffusion in the model. The model has been used to study particle and energy confinement times in the 2XIIB experiment and in the mirror plug of the TMX experiment. Calculated values of T/sub e/ decrease from classical Fokker-Planck values (1000 eV for 2XIIB) to the 50 eV to 200 eV range observed in 2XIIB and TMX experiments. Radial density profiles and n tau scaling with plasma radius and magnetic field agree with experimental data.
Date: May 1, 1986
Creator: Futch, A.H.
System: The UNT Digital Library
Caldera processes and magma-hydrothermal systems continental scientific drilling program: thermal regimes, Valles caldera research, scientific and management plan (open access)

Caldera processes and magma-hydrothermal systems continental scientific drilling program: thermal regimes, Valles caldera research, scientific and management plan

Long-range core-drilling operations and initial scientific investigations are described for four sites in the Valles caldera, New Mexico. The plan concentrates on the period 1986 to 1993 and has six primary objectives: (1) study the origin, evolution, physical/chemical dynamics of the vapor-dominated portion of the Valles geothermal system; (2) investigate the characteristics of caldera fill and mechanisms of caldera collapse and resurgence; (3) determine the physical/chemical conditions in the heat transfer zone between crystallizing plutons and the hydrothermal system; (4) study the mechanism of ore deposition in the caldera environment; (5) develop and test high-temperature drilling techniques and logging tools; and (6) evaluate the geothermal resource within a large silicic caldera. Core holes VC-2a (500 m) and VC-2b (2000 m) are planned in the Sulphur Springs area; these core holes will probe the vapor-dominated zone, the underlying hot-water-dominated zone, the boiling interface and probable ore deposition between the two zones, and the deep structure and stratigraphy along the western part of the Valles caldera fracture zone and resurgent dome. Core hole VC-3 will involve reopening existing well Baca number12 and deepening it from 3.2 km (present total depth) to 5.5 km, this core hole will penetrate the deep-crystallized silicic pluton, …
Date: May 1, 1986
Creator: Goff, F. & Nielson, D.L. (eds.)
System: The UNT Digital Library
Railroad Commission of Texas Oil and Gas Division Annual Report: 1985 (open access)

Railroad Commission of Texas Oil and Gas Division Annual Report: 1985

Annual report of the Texas Railroad Commission's Oil and Gas Division providing background on the industry and the agency's activities, information related to the production of oil and gas, and data regarding production by field.
Date: June 1986
Creator: Railroad Commission of Texas. Oil and Gas Division.
System: The Portal to Texas History
Annotated geothermal bibliography of Utah (open access)

Annotated geothermal bibliography of Utah

The bibliography includes all the Utah geothermal references through 1984. Some 1985 citations are listed. Geological, geophysical, and tectonic maps and reports are included if they cover a high-temperature thermal area. The references are indexed geographically either under (1) United States (national studies), (2) regional - western United States or physiographic province, (3) Utah - statewide and regional, or (4) county. Reports concerning a particular hot spring or thermal area are listed under both the thermal area and the county names.
Date: January 1, 1986
Creator: Budding, K. E. & Bugden, M. H. (comps.)
System: The UNT Digital Library
Scientific basis for risk assessment and management of uranium mill tailings (open access)

Scientific basis for risk assessment and management of uranium mill tailings

A National Research Council study panel, convened by the Board on Radioactive Waste Management, has examined the scientific basis for risk assessment and management of uranium mill tailings and issued this final report containing a number of recommendations. Chapter 1 provides a brief introduction to the problem. Chapter 2 examines the processes of uranium extraction and the mechanisms by which radionuclides and toxic chemicals contained in the ore can enter the environment. Chapter 3 is devoted to a review of the evidence on health risks associated with radon and its decay products. Chapter 4 provides a consideration of conventional and possible new technical alternatives for tailings management. Chapter 5 explores a number of issues of comparative risk, provides a brief history of uranium mill tailings regulation, and concludes with a discussion of choices that must be made in mill tailing risk management. 211 refs., 30 figs., 27 tabs.
Date: January 1, 1986
Creator: unknown
System: The UNT Digital Library
San Antonio Monthly Reports: March 1986 (open access)

San Antonio Monthly Reports: March 1986

Compilation of monthly reports from departments in the city of San Antonio, Texas providing statistics, project updates, and other information about services and activities.
Date: April 2, 1986
Creator: San Antonio (Tex.)
System: The Portal to Texas History
Photovoltaic industry process from 1980 to mid 1986 (open access)

Photovoltaic industry process from 1980 to mid 1986

The objective of this report is to describe PV insustry developments in 1985 and present forecasts for 1986. Information is presented on a regional basis (United States, Europe, Japan, other) to avoid disclosing company confidential data. Information was gleaned from several sources, including a review of technical literature and direct contacts with many PV manufacturers. prior to publishing the regional totals, all numbers were compared with those from other sources published in the United States and those supplied by Japanese industry through their solar energy organization.
Date: August 1, 1986
Creator: Watts, R.L. & Smith, S.A.
System: The UNT Digital Library
Technology, public policy, and the changing structure of American agriculture, Background papers, Volume II (open access)

Technology, public policy, and the changing structure of American agriculture, Background papers, Volume II

This report discusses the commodity programs that have been developed over the years with the objective to raise farm outcomes.
Date: May 1986
Creator: United States. Congress. Office of Technology Assessment
System: The UNT Digital Library