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Decommissioning of commercial shallow-land burial sites

Description: Estimated costs and safety considerations for decommissioning LLW burial grounds have been evaluated. Calculations are based on a generic burial ground assumed to be located at a western and an eastern site. Decommissioning modes include: (1) site stabilization followed by long-term care of the site; and (2) waste relocation. Site stabilization is estimated to cost from $0.4 million to $7.5 million, depending on the site and the stabilization option chosen. Long-term care is estimated to cost a… more
Date: January 1, 1979
Creator: Murphy, E. S. & Holter, G. M.
Partner: UNT Libraries Government Documents Department
open access

Final analysis of the engineering data on the scyllac feedback stabilization experiment

Description: The feedback stabilization system consists of four basic components: plasma position detectors, a signal processor or mode analyzer driven by the position detector signals, power amplifiers which are driven by the mode analyzer, and feedback load coils driven by the power amplifiers. A short description of each of the four components of the system is presented. The location of the components in the experiment is shown.
Date: January 1, 1977
Creator: Kutac, K. J.; Kewish, R. W.; Miller, G. & Gribble, R. F.
Partner: UNT Libraries Government Documents Department
open access

Hydrodynamick instabilities on ICF capsules

Description: This article summarizes our current understanding of hydrodynamic instabilities as relevant to ICF. First we discuss classical, single mode Rayleigh-Taylor instability, and nonlinear effects in the evolution of a single mode. Then we discuss multimode systems, considering: (1) the onset of nonlinearity; (2) a second order mode coupling theory for weakly nonlinear effects, and (3) the fully nonlinear regime. Two stabilization mechanisms relevant to ICF are described next: gradient scale length a… more
Date: June 7, 1991
Creator: Haan, S.W.
Partner: UNT Libraries Government Documents Department
open access

RFQ'S in research and industry

Description: The Radio Frequency Quadrupole accelerator (RFQ) has now matured to the point where it has found wide application. Many machines are in use as part of a synchrotron injector chain with others in unique and unusual applications. Several new RFQ's are now under construction or operating since the last survey. They are of various configurations, making use of various techniques of fabrication and field stabilization. Duty factors are being pushed up, new beam dynamics design techniques are to be u… more
Date: June 1, 1986
Creator: Staples, J.
Partner: UNT Libraries Government Documents Department
open access

Waste management issues at US Air Force bases

Description: Air Force installations are industrial bases for projecting men and machinery around the globe. Supporting this mission typically requires large quantities of stockpiled potentially hazardous materials. Over the past several decades, spills, poor accounting, mis-handling, and lack of understanding have led to discharges of hazardous substances into the environment. The Installation Restoration Program (IRP) is a Department of Defense directed program aimed at remediating discharges of hazardous… more
Date: May 1, 1992
Creator: Doesburg, J.M.
Partner: UNT Libraries Government Documents Department
open access

1987 Oak Ridge model conference: Proceedings: Volume I, Part 2, Waste Management

Description: A conference sponsored by the United States Department of Energy (DOE) was held on Waste Mangement. Topics discussed were waste stabilization technologies regulations and standards, innovative treatment technology, waste stabilization projects. Individual projects are processed separately for the data bases. (CBS)
Date: January 1, 1987
Partner: UNT Libraries Government Documents Department
open access

Metal toxicity evaluation of Savannah River Plant saltstone comparison of EP and TCLP test results

Description: Saltstone is the waste treatment and disposal concept for low-level defense waste at the Savannah River Plant. The waste is a sodium salt solution which has about 230 ..mu..CiL in addition to the hazardous characteristics of corrosivity and metal toxicity (Cr/sup +6/ > 100 ppM). Two EPA test procedures are routinely used at SRP to evaluate metal toxicity of wastes and wasteforms. 1) the Extraction Procedure (EP); and 2) the Toxicity Characterization Leaching Procedure (TCLP). The EP test is … more
Date: January 1, 1988
Creator: Langton, C A
Partner: UNT Libraries Government Documents Department
open access

Underground stress engineering: the lifting and stabilization of underground voids

Description: The theoretical basis of how grout, i.e., concrete, pumped into rock fractures prevents the caving of underground tunnel and cavity roofs is presented, and the calculation of how much grout material must be injected to lift a dome and create a useful rubble stope in an underground cavity is described. (LCL)
Date: January 1, 1977
Creator: Colgate, S. A.; Petschek, A. G.; Browning, R. V. & Bowers, N. K.
Partner: UNT Libraries Government Documents Department
open access

Bench-scale simulation of quenching and stabilization of MIS retorts

Description: This research was conducted to evaluate in situ retort stabilization methods. The objective of the bench-scale simulations was to evaluate possible post-retorting operating procedures for the optimum cleaning of spent retorts. After simulating conditions of modified in situ (MIS) retorts at the time retorting had ended, procedures to accelerate retort cleanup without using large volumes of water were investigated. Samples from various levels of the retort were used to determine the amount of wa… more
Date: January 1, 1992
Creator: Barbour, F.A. (Western Research Inst., Laramie, WY (United States)) & Boysen, J.E. (Resource Technology Corp., Inc., Laramie, WY (United States))
Partner: UNT Libraries Government Documents Department
open access

Uranium mill tailings stabilization

Description: Uranium mill tailings pose a potential radiation health hazard to the public. Therefore, stabilization or disposal of these tailings in a safe and environmentally sound way is needed to minimize radon exhalation and other environmental hazards. One of the most promising concepts for stabilizing U tailings is the use of asphalt emulsion to contain radon and other hazardous materials within uranium tailings. This approach is being investigated at the Pacific Northwest Laboratory. Results of these… more
Date: February 1, 1980
Creator: Hartley, J. N.; Koehmstedt, P. L.; Esterl, D. J. & Freeman, H. D.
Partner: UNT Libraries Government Documents Department
open access

Magnetic mirror fusion program

Description: The past, present, and future thrusts of the magnetic mirror fusion program at LLL are reviewed. Neutral beam injection, stabilization, and density-lifetime product results from the 2XIIB experiment are briefly highlighted. The rationale of the Tandem Mirror Experiment and Field Reversed Mirror Experiment now under way are discussed. Plans for the Mirror Fusion Test Facility (MFTF) are described. Approaches to improvement of particle containment in mirror fusion systems are briefly indicated. (… more
Date: October 25, 1977
Creator: Fowler, T.K.
Partner: UNT Libraries Government Documents Department
open access

Soil-water impacts from using vegetation and rock covers for surface stabilization of uranium-mill tailings

Description: This paper presents the results from an analysis of vegetated and rock covers and their effect on the moisture content in a covered uranium mill tailings system. Based on a one-dimensional analysis of moisture movement, the results indicate that care must be taken when selecting a surface stabilization system for a tailings pile. The moisture-content response of the tailings pile and cover system can be radically altered by different surface treatments. The two cases considered in this study in… more
Date: January 1, 1982
Creator: Mayer, D. W.; Beedlow, P. A. & Cadwell, L. L.
Partner: UNT Libraries Government Documents Department
open access

General, database-driven fast-feedback system for the Stanford Linear Collider

Description: A new feedback system has been developed for stabilizing the SLC beams at many locations. The feedback loops are designed to sample and correct at the 60 Hz repetition rate of the accelerator. Each loop can be distributed across several of the standard 80386 microprocessors which control the SLC hardware. A new communications system, KISNet, has been implemented to pass signals between the microprocessors at this rate. The software is written in a general fashion using the state space formalism… more
Date: May 1, 1991
Creator: Rouse, F.; Allison, S.; Castillo, S.; Gromme, T.; Hall, B.; Hendrickson, L. et al.
Partner: UNT Libraries Government Documents Department
open access

Demonstration of Femtosecond-Phase Stabilization in 2 km OpticalFiber

Description: Long-term phase drifts of less than a femtosecond per hour have been demonstrated in a 2 km length of single-mode optical fiber, stabilized interferometrically at 1530 nm. Recent improvements include a wide-band phase detector that reduces the possibility of fringe jumping due to fast external perturbations of the fiber and locking of the master CW laser wavelength to an atomic absorption line. Mode-locked lasers may be synchronized using two wavelengths of the comb, multiplexed over one fiber,… more
Date: June 1, 2007
Creator: Staples, J. W.; Wilcox, R. & Byrd, J. M.
Partner: UNT Libraries Government Documents Department
open access

Transatlantic transport of Fermilab 3.9 GHz cryomodule for TTF/FLASH to DESY

Description: In an exchange of technology agreement, Fermilab built and will deliver a 3.9 GHz (3rd harmonic) cryomodule to DESY to be installed in the TTF/FLASH beamline. This cryomodule delivery will involve a combination of flatbed air ride truck and commercial aircraft transport to Hamburg Germany. A description of the isolation and damping systems that maintain alignment during transport and protect fragile components is provided. Initially, transport and corresponding alignment stability studies were … more
Date: June 1, 2008
Creator: McGee, M. W.; Vocean, V.; Grimm, C. & Schappert, W.
Partner: UNT Libraries Government Documents Department
open access

Fluidized Bed Steam Reforming Mineralization for High Organic and Nitrate Waste Streams for the Global Nuclear Energy Partnership

Description: Waste streams that may be generated by the Global Nuclear Energy Partnership (GNEP) Advanced Energy Initiative may contain significant quantities of organics (0-53 wt%) and/or nitrates (0-56 wt%). Decomposition of high nitrate streams requires reducing conditions, e.g. organic additives such as sugar or coal, to reduce the NO{sub x} in the off-gas to N{sub 2} to meet the Clean Air Act (CAA) standards during processing. Thus, organics will be present during waste form stabilization regardless of… more
Date: January 11, 2008
Creator: Jantzen, Carol M. & Williams, M. R.
Partner: UNT Libraries Government Documents Department
open access

Spin-orbit holds the heavyweight title for Pu and Am: Exchange regains it for Cm

Description: The conclusions of this paper are: (1) The 5f electrons in Cm are near an LS coupling scheme. (2) This coupling scheme allows for a large spin polarization of the 5f electrons, which in turn stabilizes the Cm III crystal structure. (3) Results for Cm show us the recipe for magnetic stabilization of the crystal structure of metals: (A) The metal must be near the itinerant-localized transition where multiple crystal structures have close energies; (B) The metal is just on the magnetic side of the… more
Date: January 10, 2008
Creator: Moore, K; der Laan, G v & Soderlind, P
Partner: UNT Libraries Government Documents Department
open access

Empirical evidence for a recent slowdown in irrigation-induced cooling

Description: Understanding the influence of past land use changes on climate is needed to improve regional projections of future climate change and inform debates about the tradeoffs associated with land use decisions. The effects of rapid expansion of irrigated area in the 20th century has remained unclear relative to other land use changes, such as urbanization, that affected a similar total land area. Using spatial and temporal variations in temperature and irrigation extent observed in California, we sh… more
Date: January 19, 2007
Creator: Bonfils, C & Lobell, D
Partner: UNT Libraries Government Documents Department
open access

Performance Test of Amorphous Silicon Modules in Different Climates - Year Four: Progress in Understanding Exposure History Stabilization Effects; Preprint

Description: The four-year experiment involved three identical sets of thin-film a-Si modules from various manufacturers deployed outdoors simultaneously in three sites with distinct climates. Each PV module set spent a one-year period at each site before a final period at the original site where it was first deployed.
Date: May 1, 2008
Creator: Rüther, R.; Montenegro, A. A.; del Cueto, J.; Rummel, S.; Anderberg, A.; von Roedern, B. et al.
Partner: UNT Libraries Government Documents Department
open access

Predictions of long-term behavior of a large-volume pilot test for CO2 geological storage in a saline formation in the Central Valley, California

Description: The long-term behavior of a CO{sub 2} plume injected into a deep saline formation is investigated, focusing on mechanisms that lead to plume stabilization. Key measures are plume migration distance and the time evolution of CO{sub 2} phase-partitioning, which are examined by developing a numerical model of the subsurface at a proposed power plant with CO{sub 2} capture in the San Joaquin Valley, California, where a large-volume pilot test of CO{sub 2} injection will be conducted. The numerical … more
Date: November 1, 2008
Creator: Doughty, Christine; Myer, Larry R. & Oldenburg, Curtis M.
Partner: UNT Libraries Government Documents Department
open access

Characterization of Surplus Plutonium for Disposition Options

Description: The United States (U.S.) has identified 61.5 metric tons (MT) of plutonium that is permanently excess to use in nuclear weapons programs, including 47.2 MT of weapons-grade plutonium. Except for materials that remain in use for programs outside of national defense, including programs for nuclear-energy development, the surplus inventories will be stored safely by the Department of Energy (DOE) and then transferred to facilities that will prepare the plutonium for permanent disposition. Some ite… more
Date: July 15, 2008
Creator: Allender, Jeffrey S.; Moore, Edwin N. & Davies, Scott H.
Partner: UNT Libraries Government Documents Department
open access

Effective Supergravity from the Weakly Coupled HeteroticString

Description: The motivation for Calabi-Yau-like compactifications of the weakly coupled E{sub 8} {circle_times} E{sub 8} heterotic string theory, its particle spectrum and the issue of dilaton stabilization are briefly reviewed. Modular invariant models for hidden sector condensation and supersymmetry breaking are described at the quantum level of the effective field theory. Their phenomenological and cosmological implications, including a possible origin for R-parity, are discussed.
Date: May 1, 2005
Creator: Gaillard, Mary K.
Partner: UNT Libraries Government Documents Department
open access

Global Nuclear Energy Partnership Waste Treatment Baseline

Description: The Global Nuclear Energy Partnership program (GNEP) is designed to demonstrate a proliferation-resistant and sustainable integrated nuclear fuel cycle that can be commercialized and used internationally. Alternative stabilization concepts for byproducts and waste streams generated by fuel recycling processes were evaluated and a baseline of waste forms was recommended for the safe disposition of waste streams. Waste forms are recommended based on the demonstrated or expected commercial practic… more
Date: May 1, 2008
Creator: Gombert, Dirk; Ebert, William; Marra, James; Jubin, Robert & Vienna, John
Partner: UNT Libraries Government Documents Department
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