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Enigmatic electrons, photons, and ``empty`` waves (open access)

Enigmatic electrons, photons, and ``empty`` waves

A spectroscopic analysis is made of electrons and photons from the standpoint of physical realism. In this conceptual framework, moving particles are portrayed as localized entities which are surrounded by ``empty`` waves. A spectroscopic model for the electron Stands as a guide for a somewhat similar, but in essential respects radically different, model for the photon. This leads in turn to a model for the ``zeron``. the quantum of the empty wave. The properties of these quanta mandate new basis states, and hence an extension of our customary framework for dealing with them. The zeron wave field of a photon differs in one important respect from the standard formalism for an electromagnetic wave. The vacuum state emerges as more than just a passive bystander. Its polarization properties provide wave stabilization, particle probability distributions, and orbit quantization. Questions with regard to special relativity are discussed.
Date: August 22, 1995
Creator: MacGregor, M.H.
Object Type: Article
System: The UNT Digital Library
Dosimetry investigation of the recuplex accident (open access)

Dosimetry investigation of the recuplex accident

At 10:59 AM (PST), Saturday, April 7, 1962 a criticality accident occurred in a plutonium waste chemical recovery facility at the Hanford Atomic Products Operation, operated for the Atomic Energy Commission by the General Electric Company. Four men were hospitalized but were released after medical observation and after estimates of the radiation doses received were available. This report describes the dosimetry investigation that was made following the accident. This investigation was facilitated by the fact that all employees affected had personnel dosimeters in their possession when the incident occurred. The interpretation of the data supplied by these dosimeters was supplemented by information gathered by techniques that were developed in connection with other accidents. Below, the available information is first presented and then applied in a discussion of the dosimetry of the people involved in the accident.
Date: August 22, 1962
Creator: Roesch, W. C.; Gamertsfelder, C. C.; Larson, H. V.; Watson, E. C. & Nielsen, J. M.
Object Type: Report
System: The UNT Digital Library
Materials issues in some advanced forming techniques, including superplasticity (open access)

Materials issues in some advanced forming techniques, including superplasticity

From mechanics and macroscopic viewpoints, the sensitivity of the flow stress of a material to the strain rate, i.e. the strain rate sensitivity (m), governs the development of neck formation and therefore has a strong influence on the tensile ductility and hence formability of materials. Values of strain rate sensitivity range from unity, for the case of Newtonian viscous materials, to less than 0.1 for some dispersion strengthened alloys. Intermediate values of m = 0.5 are associated with classical superplastic materials which contain very fine grain sizes following specialized processing. An overview is given of the influence of strain rate sensitivity on tensile ductility and of the various materials groups that can exhibit high values of strain rate sensitivity. Recent examples of enhanced formability (or extended tensile ductility) in specific regimes between m = 1 and m = 0.3 are described, and potential areas for commercial exploitation are noted. These examples include: internal stress superplasticity, superplastic ceramics, superplastic intermetallics, superplastic laminated composites, superplastic behavior over six orders of magnitude of strain rate in a range of aluminum-based alloys and composites, and enhanced ductility in Al-Mg alloys that require no special processing for microstructural development.
Date: August 22, 1995
Creator: Wadsworth, J.; Henshall, G.A. & Nieh, T.G.
Object Type: Article
System: The UNT Digital Library
Tank characterization report for double-shell tank 241-AN-106 (open access)

Tank characterization report for double-shell tank 241-AN-106

This document summarizes the information on the historical uses, present status, and the sampling and analysis results of waste store in Tank 241-AN-106. This report supports the requirements of Tri- Party Agreement Milestone M-44-09.
Date: August 22, 1996
Creator: Douglas, J.G., Westinghouse Hanford
Object Type: Report
System: The UNT Digital Library
Improvement of storage, handling, and transportability of fine coal. Quarterly technical progress report No. 6, April 1, 1995--June 30, 1995 (open access)

Improvement of storage, handling, and transportability of fine coal. Quarterly technical progress report No. 6, April 1, 1995--June 30, 1995

The major activities of the period were production operations of the demonstration circuit at Drummond`s Chetopa Preparation Plant near Graysville, Alabama. As the shakedown runs had shown, excellent quality Mulled Coal could be produced, and a total of 870 tonnes (966 tons) was produced. Quality was consistently better than the acceptable level. Immediately following the completion of the production demonstration, removal of equipment and decommissioning of the demonstration facility was undertaken and completed.
Date: August 22, 1996
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Improvement of storage, handling, and transportability of fine coal. Quarterly technical progress report No. 7, July 1, 1995--September 30, 1995 (open access)

Improvement of storage, handling, and transportability of fine coal. Quarterly technical progress report No. 7, July 1, 1995--September 30, 1995

The Mulled Coal process was developed as a means of overcoming the adverse handling characteristics of wet fine coal without thermal drying. The process involves the addition of a low cost harmless reagent to wet fine coal using off-the-shelf mixing equipment. Based on laboratory- and bench-scale testing, Mulled Coal can be stored, shipped, and burned without causing any of the plugging, pasting, carryback and freezing problems normally associated with wet coal. The objectives of this project are to demonstrate that: The Mulled Coal process, which has been proven to work on a wide range of wet fine coals at bench scale, will work equally well in a commercial coal preparation plant. The wet product from a fine coal cleaning circuit can be converted to a solid fuel form for ease of handling and cost savings in storage and rail car transportation. A wet fine coal product thus converted to a solid fuel form can be stored, shipped, and burned with conventional fuel handling, transportation, and combustion systems. The Mulled Coal circuit was installed in an empty bay at the Chetopa Preparation Plant. Equipment has been installed to divert a 2.7 tonnes/hr (3 tons/hr) slipstream of the froth concentrate to a …
Date: August 22, 1996
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Tank characterization report for single-shell tank 241-BY-112 (open access)

Tank characterization report for single-shell tank 241-BY-112

This document summarizes the information on the historical uses, present status, and the sampling and analysis results of waste stored in Tank 241-BY-112. This report supports the requirements of the Tri-Party Agreement Milestone M-44-10. (This tank has been designated a Ferrocyanide Watch List tank.)
Date: August 22, 1997
Creator: Baldwin, J.H.
Object Type: Report
System: The UNT Digital Library
W-026, operational test report isokenetic stack effluent monitoring system (open access)

W-026, operational test report isokenetic stack effluent monitoring system

This Operational Test Report was performed to assure the Isokinetic Stack Effluent Monitoring System (ISEMS) operates in accordance with system design and specifications.
Date: August 22, 1997
Creator: Bottenus, R.J.
Object Type: Report
System: The UNT Digital Library
Multidimensional discretization of conservation laws for unstructured polyhedral grids (open access)

Multidimensional discretization of conservation laws for unstructured polyhedral grids

To the extent possible, a discretized system should satisfy the same conservation laws as the physical system. The author considers the conservation properties of a staggered-grid Lagrange formulation of the hydrodynamics equations (SGH) which is an extension of a ID scheme due to von Neumann and Richtmyer (VNR). The term staggered refers to spatial centering in which position, velocity, and kinetic energy are centered at nodes, while density, pressure, and internal energy are at cell centers. Traditional SGH formulations consider mass, volume, and momentum conservation, but tend to ignore conservation of total energy, conservation of angular momentum, and requirements for thermodynamic reversibility. The author shows that, once the mass and momentum discretizations have been specified, discretization for other quantities are dictated by the conservation laws and cannot be independently defined. The spatial discretization method employs a finite volume procedure that replaces differential operators with surface integrals. The method is appropriate for multidimensional formulations (1D, 2D, 3D) on unstructured grids formed from polygonal (2D) or polyhedral (3D) cells. Conservation equations can then be expressed in conservation form in which conserved currents are exchanged between control volumes. In addition to the surface integrals, the conservation equations include source terms derived from physical …
Date: August 22, 1994
Creator: Burton, D.E.
Object Type: Article
System: The UNT Digital Library
Tank characterization report for double-shell tank 241-AN-103 (open access)

Tank characterization report for double-shell tank 241-AN-103

This document summarizes the information on the historical uses, present status, and the sampling and analysis results of waste stored in Tank 241-AN-103. This report supports the requirements of the Tri-Party Agreement Milestone M-44-10. (This tank has been designated an Hydrogen Watch List tank.)
Date: August 22, 1997
Creator: Wilkins, N.E.
Object Type: Report
System: The UNT Digital Library
Radiation hardened fiber optics for fusion reactor diagnostic systems. Final technical report (open access)

Radiation hardened fiber optics for fusion reactor diagnostic systems. Final technical report

This final report comprises a brief synopsis of the following original papers published in refereed journals. For further details, these papers themselves should be consulted. (1) ``Fast-neutron radiation effects in a silica-core optical fiber studied by a CCD-camera spectrometer,`` D.L. Griscom, M.E. Gingerich, E.J. Friebele, M. Putnam, and W. Unruh, Appl. Optics 33, 1022-1028 (1994). (2) ``Radiation hardening of pure-silica-core optical fibers by ultra-high-dose {gamma}-ray pre-irradiation,`` D.L. Griscom, J. Appl. Phys. 77, 5008-5013 (1995). (3) ``{gamma}-radiation resistance of aluminum-coated all-silica optical fibers fabricated using different types of silica in the core,`` D.L. Griscom, K.M. Goland, A.L. Tomashuk, D.V.; Pavlov, and Yu.A. Tarabrin, Appl. Phys. Lett. 69, 322-324 (1996). (4) ``{gamma} and fission-reactor radiation effects on the visible-range transparency of aluminum-jacketed, all-silica optical fibers,`` D.L. Griscom, J. Appl. Phys. 80, 2142-2155 (1996). (5) ``Visible/infra-red absorption study in fiber geometry of metastable defect states in high-purity fused silicas,`` D.L. Griscom, Proc. 13th Int`l Conf. on Defects in Insulating Materials, Wake Forest University, Winston-Salem, NC, July 1996. (6) ``Influence of the cladding thickness on the evolution of the NBOHC band in optical fibers exposed to gamma radiations,`` O. Deparis, D.L. Griscom, P. Megret, M. Decreton, and M. Blondel, J. Non-Cryst. Solids 216, 124-128 …
Date: August 22, 1998
Creator: Griscom, D.L.
Object Type: Report
System: The UNT Digital Library
Pollution prevention/waste minimization program 1998 fiscal year work plan - WBS 1.11.2.1 (open access)

Pollution prevention/waste minimization program 1998 fiscal year work plan - WBS 1.11.2.1

Pollution Prevention/Waste Minimization (P2/WMin) is the Department of Energy`s preferred approach to environmental management. The P2/WMin mission is to eliminate or minimize waste generation, pollutant releases to the environment, use of toxic substances, and to conserve resources by implementing cost-effective pollution prevention technologies, practices, and polices.
Date: August 22, 1997
Creator: Howald, S. C.
Object Type: Report
System: The UNT Digital Library
Waste management plan for the APT (open access)

Waste management plan for the APT

This revision of the APT Waste Management Plan details the waste management requirements and issues specific to the APT plant for design considerations, construction, and operation. The APT Waste Management Plan is by its nature a living document and will be reviewed at least annually and revised as required.
Date: August 22, 1997
Creator: England, J. L.
Object Type: Report
System: The UNT Digital Library
Supporting documentation for the 1997 revision to the DOE Insulation Fact Sheet (open access)

Supporting documentation for the 1997 revision to the DOE Insulation Fact Sheet

The Department of Energy (DOE) Insulation Fact Sheet has been revised to reflect developments in energy conservation technology and the insulation market. A nationwide insulation cost survey was made by polling insulation contractors and builders, and the results are reported here. These costs, along with regional weather data, regional fuel costs, and fuel-specific system efficiencies were used to produce recommended insulation levels for new and existing houses. This report contains all of the methodology, algorithms, assumptions, references, and data resources that were used to produce the 1997 DOE Insulation Fact Sheet.
Date: August 22, 1997
Creator: Stovall, T.K.
Object Type: Report
System: The UNT Digital Library
National Ignition Facility subsystem design requirements optics assembly building (OAB) SSDR 1.2.2.3 (open access)

National Ignition Facility subsystem design requirements optics assembly building (OAB) SSDR 1.2.2.3

This Subsystem Design Requirement (SSDR) document establishes the performance, design, and verification requirements `for the conventional building systems and subsystems of the Optics Assembly Building (OAB). These building system requirements are associated with housing and supporting the operational flow of personnel and materials throughout the OAB for preparing and repairing optical and mechanical components used in the National Ignition Facility (NIF) Laser and Target Building (LTAB). This SSDR addresses the following subsystems associated with the OAB: * Structural systems for the building spaces and operational-support equipment and building- support equipment. * Architectural building features associated with housing the space, operational cleanliness, and functional operation of the facility. * Heating, Ventilating, and Air Conditioning (HVAC) systems for maintaining a clean and thermally stable ambient environment within the facility. * Plumbing systems that provide potable water and sanitary facilities for the occupants and stormwater drainage for transporting rainwater. * Fire Protection systems that guard against fire damage to the facility and its contents. * Material handling equipment for transferring optical assemblies and other materials within building areas and to the LTAB. * Mechanical process piping systems for liquids and gases that provide cooling, cleaning, and other service to optical and mechanical components. …
Date: August 22, 1996
Creator: Kempel, P. & Hands, J.
Object Type: Report
System: The UNT Digital Library
Rapid Risk-Based Evaluation of Competing Conceptual Designs (open access)

Rapid Risk-Based Evaluation of Competing Conceptual Designs

In this paper, the authors have shown how a qualitative analysis can provide good input to a risk reduction design problem. Traditionally qualitative analyses such as the FMEA can be supplemented by qualitative fault trees and event trees to produce logic models of the accident sequences for the different design options. These models can be compared using rule-based manipulations of qualitative branch point probabilities. A qualitative evaluation of other considerations such as collateral safety effects, operational impacts and worker-safety impacts can provide a more complete picture of the trade-off between options. The authors believe that their risk-reduction analysis approach that combines logic models with qualitative and possibility metrics provides an excellent tool for incorporating safety concerns rapidly and effectively into a conceptual design evaluation.
Date: August 22, 1999
Creator: Bott, T. F. & Butner, J. M.
Object Type: Article
System: The UNT Digital Library
Geophysical investigation of the 216-U-1/2 pipeline, 200 west area (open access)

Geophysical investigation of the 216-U-1/2 pipeline, 200 west area

Ground-penetrating radar was used at three locations in an attempt to locate and determine the depth of the 216-U-1/2 pipeline. Many anomalies were found, all very useful to the project, but only some of which were identified with the pipeline.
Date: August 22, 1996
Creator: Fassett, J.W & Bergstrom, K.A., Westinghouse Hanford
Object Type: Report
System: The UNT Digital Library
Superconductivity in Strong Magnetic Field (Greater Than Upper Critical Field) (open access)

Superconductivity in Strong Magnetic Field (Greater Than Upper Critical Field)

The National High Magnetic Field Laboratory, funded by the National Science Foundation and other US federal Agencies, has in recent years built a wide range of magnetic fields, DC 25 to 35 Tesla, short pulse 50 - 60 Tesla, and quasi-continuous 60 Tesla. Future plans are to push the frontiers to 45 Tesla DC and 70 to 100 Tesla pulse. This user facility, is open for national and international users, and creates an excellent tool for materials research (metals, semiconductors, superconductors, biological systems ..., etc). Here we present results of a systematic study of the upper critical field of a novel superconducting material which is considered a promising candidate for the search for superconductivity beyond H{sub c2} as proposed by several new theories. These theories predict that superconductors with low carrier density can reenter the superconducting phase beyond the conventional upper critical field H{sub c2}. This negates the conventional thinking that superconductivity and magnetic fields are antagonistic.
Date: August 22, 1998
Creator: Tessema, G. X.; Gamble, B. K.; Skove, M. J.; Lacerda, A. H. & Mielke, C. H.
Object Type: Article
System: The UNT Digital Library
The integrated water conservation program at Sandia National Laboratories (open access)

The integrated water conservation program at Sandia National Laboratories

Sandia National Laboratories (SNL), located on Kirkland Air Force Base (KAFB) in Albuquerque, NM, is implementing a comprehensive water conservation program. Because the average rainfall in this metropolitan area of 500,000 is approximately 8 inches per year, conservation of this precious resource is critical to the economic health of the city and state, and the continued operations at SNL/NM. To address this need, SNL/NM is taking a systematic, comprehensive approach to water conservation. The approach is to estimate the water consumption for all of SNL/NM by type of consumption. For each type of water consumption, all cost effective measures for reducing, reclaiming, and/or recycling that usage will be ranked. These water conservation measures range from the simple such as retrofitting plumbing fixtures with low cost devices to reduce water required to flush toilets to the very complex. As an example of the very complex, a Microelectronics Development Laboratory (MDL) lab will implement a near zero water discharge from clean room wet benches. Deionized (DI) water can be sent back to the DI water input generation stream when the DI water is not being used for rinsing wafers. This paper discusses completed, ongoing and proposed projects at SNL/NM to reduce water …
Date: August 22, 1997
Creator: Rogers, D.
Object Type: Article
System: The UNT Digital Library
Loss of 115 kV Power (open access)

Loss of 115 kV Power

This report discusses the postulated loss of 115 kV power. Continuous electrical power to Savannah River Plant reactors is necessary to maintain water flow for heat removal and essential monitoring and control. Should power supplied to the plant 115 kV system from offsite be lost, on-site generation is sufficient to maintain all reactors in a safe shutdown mode for an indefinite period. Should on-site generators for the 115 kV grid also be lost, diesel-electric generators within each reactor building are also sufficient to maintain safe shutdown for a finite period. In all cases DC power for necessary monitoring and control would be available from battery systems with AC converter backup.
Date: August 22, 2001
Creator: Smith, J. A.
Object Type: Report
System: The UNT Digital Library
Comparative study of medium damped and detuned linear accelerator structures (open access)

Comparative study of medium damped and detuned linear accelerator structures

Long range wakefields are a serious concern for a future linear collider based on room temperature accelerating structures. They can be suppressed either by detuning and or local damping or with some combination of both strategies. Detuning relies on precisely phasing the contributions of the dipole modes excited by the passage of a single bunch. This is accomplished by controlling individual mode frequencies, a process which dictates individual cell dimensional tolerances. Each mode must be excited with the correct strength; this in turn, determines cell-to-cell alignment tolerances. In contrast, in a locally damped structure, the modes are attenuated at the cell level. Clearly, mode frequencies and relative excitation become less critical in that context; mechanical fabrication tolerances can be relaxed. While local damping is ideal from the stand-point of long range wakefield suppression, this comes at the cost of reducing the shunt impedance and possibly unacceptable localized heating. Recently, the Medium Damped Structure (MDS), a compromise between detuning and local damping, has generated some interest. In this paper, we compare a hypothetical MDS to the NLC Rounded Damped Detuned Structure (RDDS) and investigate possible advantages from the standpoint fabrication tolerances and their relation to beam stability and emittance preservation.
Date: August 22, 2001
Creator: al., Jean-Francois Ostiguy et
Object Type: Article
System: The UNT Digital Library
Solution to the initial value problem for a high-gain FEL via Van Kampen's method. (open access)

Solution to the initial value problem for a high-gain FEL via Van Kampen's method.

Using Van Kampen's normal mode expansion, we solve the initial value problem for a high-gain free-electron laser (FEL) described by the three-dimensional Maxwell-Klimontovich equations. An expression of the radiation spectrum is given for the process of coherent amplification and self-amplified spontaneous emission. It is noted that the input coupling coefficient for either process increases with the initial beam energy spread. The effective start-up noise is identified as the coherent fraction of the spontaneous undulator radiation in one field gain length, and is larger with increasing energy spread and emittance mainly because of the increase in gain length.
Date: August 22, 2000
Creator: Huang, Z. & Kim, K. J.
Object Type: Article
System: The UNT Digital Library
Remote access to mathematical software. (open access)

Remote access to mathematical software.

The network-oriented application services paradigm is becoming increasingly common for scientific computing. The popularity of this approach can be attributed to the numerous advantages to both user and developer provided by network-enabled mathematical software. The burden of installing and maintaining complex systems is lifted from the user, while enabling developers to provide frequent updates without disrupting service. Access to software with similar functionality can be unified under the same interface. Remote servers can utilize potentially more powerful computing resources than may be available locally. We discuss some of the application services developed by the Mathematics and Computer Science Division at Argonne National Laboratory, including the Network Enabled Optimization System (NEOS) Server and the Automatic Differentiation of C (ADIC) Server, as well as preliminary work on Web access to the Portable Extensible Toolkit for Scientific Computing (PETSc). We also provide a brief survey of related work.
Date: August 22, 2001
Creator: Dolan, E.; Hovland, P.; More, J.; Norris, B. & Smith, B.
Object Type: Article
System: The UNT Digital Library
First measurements of subpicosecond electron beam structure by autocorrelation of coherent diffraction radiation. (open access)

First measurements of subpicosecond electron beam structure by autocorrelation of coherent diffraction radiation.

None
Date: August 22, 2000
Creator: Lumpkin, AH; Sereno, NS & Rule, DW
Object Type: Article
System: The UNT Digital Library