Progress on polarized target materials with pure carbon background (open access)

Progress on polarized target materials with pure carbon background

A previous note reviewed methods for the paramagnetic doping of materials for spin-polarized solid targets and some of the history of attempts to apply those methods to hydrocarbons. Since the earlier work on hydrocarbons had yielded, at best, rather mediocre results, that note also speculated on some ways to extend and, possibly, to improve upon the earlier work. The sharpest focus was on the light (number of carbons less than six) alkanes, since these are the hydrocarbons that have the highest hydrogen contents ([approx gt] 17wt %) and therefore require the least degree of polarization to be interesting. This present note summarizes the subsequent work done, to date, exploring some of the issues related to the chemical doping method. The main areas of progress have been in the literature search, experimental results on glass formation by alkanes, and a polarizing test of a prototype'' hydrocarbon.
Date: March 24, 1993
Creator: Hill, D.A. (Argonne National Lab., IL (United States)); Crabb, D.G. (Virginia Univ., Charlottesville, VA (United States)) & Krumpolc, M. (Illinois Univ., Chicago, IL (United States))
Object Type: Report
System: The UNT Digital Library
Texas Register, Volume 18, Number 64, Pages 5631-5682, August 24, 1993 (open access)

Texas Register, Volume 18, Number 64, Pages 5631-5682, August 24, 1993

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: August 24, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 18, Number 73, Pages 6493-6577, September 24, 1993 (open access)

Texas Register, Volume 18, Number 73, Pages 6493-6577, September 24, 1993

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: September 24, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 18, Number 96, Pages 9869-9959, December 24, 1993 (open access)

Texas Register, Volume 18, Number 96, Pages 9869-9959, December 24, 1993

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: December 24, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Attorney General Opinion: DM-231 (open access)

Texas Attorney General Opinion: DM-231

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Dan Morales, regarding a legal question submitted for clarification; Whether a quorum of a licensing board attending a license disciplinary hearing conducted by the State Office of Administrative Hearings may make findings of fact, conclusions of law, and vote on discipline without receiving from the State Office of Administrative Hearings a proposal for decision (RQ-408)
Date: June 24, 1993
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Monthly energy review, November 1993 (open access)

Monthly energy review, November 1993

The Monthly Energy Review gives information on production, distribution, and consumption for various energy sources, e.g. petroleum, natural gas, oil, coal, electricity, and nuclear energy. Some data is also included on international energy sources and supplies, the import of petroleum products into the US and pricing and reserves data (as applicable) for the various sources of energy listed above.
Date: November 24, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Thin-film characterization and flaw detection. Progress report No. 7, February 1, 1993--January 31, 1994 (open access)

Thin-film characterization and flaw detection. Progress report No. 7, February 1, 1993--January 31, 1994

Objective is to determine the elastic constants of thin films deposited on substrates, measure residual stresses, and detect and characterize defects in thin film substrate configurations. A line-focus acoustic microscope is being used to measure speed of surface acoustic waves (SAW) in thin film/substrate system. V(z) curves (record of transducer voltage output (V) with variation of distance z between acoustic lens and specimen) were calculated in terms of characteristic functions of acoustic lens and reflectance function of fluid-loaded specimen, and were compared with data for isotropic, anisotropic, and layered anisotropic materials. For thin film/substrate of known elasticity, theoretical surface acoustic wave velocities agree with measured V(z) curves for full range of wave propagation directions. Results have been obtained for homogeneous nitride films and transition-metal nitride superlattice films.
Date: November 24, 1993
Creator: Achenbach, J. D.
Object Type: Report
System: The UNT Digital Library
Gauge invariance and the electromagnetic current of composite pions (open access)

Gauge invariance and the electromagnetic current of composite pions

The Global Color-symmetry Model of QCD is extended to deal with a background electromagnetic field, and the associated conserved current is identified for the finite size {bar q}q pion modes at tree level. A well-defined truncation issued that factorizes the bilocal pion field into a local field variable and a hadronic form factor having a ladder Bethe-Salpeter content. The associated pion charge form factor is formulated. These developments are used to provide an illustration of how an effective hadronic action containing form factors may be electromagnetically coupled in a gauge invariant way that is accountable to its field substructure. In particular, the Ward-Takahashi identity for the photon vertex appropriate to the localized pion fields is seen to contain the hadronic form factors. In this context, gauge invariance of the effective hadronic action also requires recognition of the fact that the free inverse propagator for the localized pion field gauge transforms due to the substructure field content that has been absorbed into it.
Date: March 24, 1993
Creator: Frank, M. R. & Tandy, P. C.
Object Type: Report
System: The UNT Digital Library
Development of the prototype Munitions Case Moisture Meter, Model ORNL-1. Final report (open access)

Development of the prototype Munitions Case Moisture Meter, Model ORNL-1. Final report

There is a great need for a rapid and simple means of determining the moisture content in combustible cartridge case (ccc) munitions. Previous studies have demonstrated that accumulation of moisture in ccc rounds, such as the M829, leads to softening of the case wall and weakening of the adhesive joint. Moisture in the ccc can lead to incomplete combustion of the case upon firing the round. Currently, there are no facile methods for measuring the moisture content. A prototype portable meter for non-destructive and rapid estimation of moisture in ccc has been developed. The Munitions Case Moisture Meter Model ORNL-1 demonstrates the feasibility of developing an instrument based on the moisture dependence of dielectric properties, to measure moisture in ccc munitions in storage and in the field. These instruments are simple, inexpensive, lightweight, portable, low-power battery operated, and intrinsically safe. They provide nondestructive, noninvasive, and rapid measurements. Calibration data for the prototype are not available at this time. Therefore, calibration of the meter and the development of a scale reading directly moisture content in munitions rounds could not be completed. These data will be supplied by the US Army from its tests of the meter with actual munitions. However, experimental …
Date: February 24, 1993
Creator: Agouridis, D. C.; Gayle, T. M. & Griest, W. H.
Object Type: Report
System: The UNT Digital Library
The other high resolution post accelerator approach (open access)

The other high resolution post accelerator approach

There has been significant discussion in consideration of a high resolution mass separator followed by a RFQ and a linear accelerator as the basic format for IsoSpin Laboratory. There exists another strong possibility-namely a low-resolution mass separator coupled to a cyclotron. The major objection to this approach has been that the conversion from the +1 mass separator beam to a q/m beam of 1/4 to 1/3 is thought to be highly inefficient. Since we are in the fortunate position of having the two expensive components of this system available for tests (an on-line mass separator and an ECR source), we intend to couple these devices to actually measure these efficiencies and to test ideas for improving the efficiency. We present some specifics of this approach.
Date: May 24, 1993
Creator: Moltz, D. M.; Tighe, R. J.; Rowe, M. W.; Ognibene, T. J. & Cerny, J.
Object Type: Article
System: The UNT Digital Library
Los Alamos waste drum shufflers users manual (open access)

Los Alamos waste drum shufflers users manual

This user manual describes the Los Alamos waste drum shufflers. The primary purpose of the instruments is to assay the mass of {sup 235}U (or other fissile materials) in drums of assorted waste. It can perform passive assays for isotopes that spontaneously emit neutrons or active assays using the shuffler technique as described on this manual.
Date: August 24, 1993
Creator: Rinard, P. M.; Adams, E. L. & Painter, J.
Object Type: Report
System: The UNT Digital Library
Single sided tomography of extremely large dense objects (open access)

Single sided tomography of extremely large dense objects

One can envision many circumstances where radiography could be valuable but is frustrated by the geometry of the object to be radiographed. For example, extremely large objects, the separation of rocket propellants from the skin of solid fuel rocket motor, the structural integrity of an underground tank or hull of a ship, the location of buried objects, inspection of large castings etc. The author has been investigating ways to do this type of radiography and as a result has developed a technique which can be used to obtain three dimensional radiographs using Compton scattered radiation from a monochromatic source and a high efficiency, high resolution germanium spectrometer. This paper gives specific details of the reconstruction technique and presents the results of numerous numerical simulations and compares these simulations to spectra obtained in the laboratory. In addition the author presents the results of calculations made for the development of an alternative single sided radiography technique which will permit inspection of the interior of large objects. As a benchmark the author seeks to obtain three dimensional images with a resolution of about one cubic centimeter in a concrete cube 30 centimeters on a side. Such a device must use photons of very …
Date: March 24, 1993
Creator: Thoe, R. S.
Object Type: Article
System: The UNT Digital Library
High resolution tomography of objects with access to a single side (open access)

High resolution tomography of objects with access to a single side

The author is developing a technique which will enable one to obtain high-contrast, high-spatial resolution, three-dimensional images in opaque objects. The only constraint will be the radiation source and detector(s) will be located on the same side of the object. The goal is to obtain images with a spatial resolution of {approximately}1 mm at depths of 10 mm and {approximately}3 mm at depths of 30 mm in materials of moderate density (brass, steel, etc.). The author`s technique uses a highly-collimated beam of monochromatic gamma rays and a slit collimated high-resolution, high-efficiency, coaxial germanium spectrometer. If the geometry is well known, the spectrum of Compton scattered radiation can be used to map out the density as a function of depth. By scanning the object in two dimensions, a full three-dimensional image of the electron density can be reconstructed. The resolution is dependent on the incident beam collimation and the energy resolution of the spectrometer. For his system, the author anticipates a resolution of about 1 mm{sup 3}. The apparatus, reconstruction algorithms and current data verifying his predictions are presented here. Also included are the details on how the system can be modified to increase the efficiency by over two orders of …
Date: March 24, 1993
Creator: Thoe, R. S.
Object Type: Article
System: The UNT Digital Library
Mercury control in the RTF (open access)

Mercury control in the RTF

Engineering controls, described in this report, limit the amount of mercury and moisture introduced to the RTF (233-H). These controls include liquid nitrogen chilled gold traps for mercury and zeolite beds for moisture which are installed in-line. All gas transfers between 232-H or 236-H to 233-H will pass through these traps. Barring unforeseen catastrophic failure of the traps, no detectable amounts of mercury will be introduced via this route. However, a small amount of mercury (near detection limits) will be introduced via the reservoir recycle stream. This amount is conservatively calculated to be 7 milligrams per year and will have negligible impact on hydride bed performance. In no case will the design agency limits for mercury (0.3 {mu}g/liter) be approached, because the reservoir recycle gas is much lower than those limits already, and the hydride beds will amalgamate with any free mercury.
Date: March 24, 1993
Creator: Malstrom, R. A.
Object Type: Report
System: The UNT Digital Library
Sandia equation of state data base: seslan File (open access)

Sandia equation of state data base: seslan File

Sandia National Laboratories maintains several libraries of equation of state tables, in a modified Sesame format, for use in hydrocode calculations and other applications. This report discusses one of those libraries, the seslan file, which contains 78 tables from the Los Alamos equation of state library. Minor changes have been made to these tables, making them more convenient for code users and reducing numerical difficulties that occasionally arise in hydrocode calculations.
Date: June 24, 1993
Creator: Kerley, G. I. & Christian-Frear, T. L.
Object Type: Report
System: The UNT Digital Library
EIA publications directory, 1992 (open access)

EIA publications directory, 1992

This directory contains abstracts and ordering information for EIA publications. The abstracts are arranged by broad subject category such as coal, petroleum, natural gas, and electric power. A comprehensive subject index, a title index, and a report number index are included. Each entry gives the title, report number, publication frequency, date, number of pages, and ordering information. Publication began with the 1979 edition.
Date: June 24, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Measurement of the strange quark distribution function in W + charm quark events (open access)

Measurement of the strange quark distribution function in W + charm quark events

We investigate the prospects of measuring the strange quark distribution function at the Tevatron, using W plus charm quark events. The W plus charm quark events. The W plus charm quark signal produced by strange quark - gluon fusion, sg {yields} W {sup {minus}}c and {bar s}g {yields} W {sup +} W+ charm quark cross section to the parametrization of the strange quark distribution function, and evaluate the various background processes. The different prospects of tagging the charm quark with the CDF and D{theta} detectors are briefly discussed.
Date: June 24, 1993
Creator: Baur, U.; Keller, S.; Halzen, F.; Riesselmann, K. & Mangano, M. L.
Object Type: Report
System: The UNT Digital Library
Applications of advanced petroleum production technology and water alternating gas injection for enhanced oil recovery -- Mattoon Oil Field, Illinois. First quarterly technical progress report, 1993 (open access)

Applications of advanced petroleum production technology and water alternating gas injection for enhanced oil recovery -- Mattoon Oil Field, Illinois. First quarterly technical progress report, 1993

For work during the first quarter of 1993, American Oil Recovery, Inc. targeted completion of the following specific objectives: Convene meetings of Mattoon Project subcontractors in order to plan and coordinate Project activities. Confirm organizational arrangements and plans for implementation of Mattoon Project. Complete most work on detailed analysis of reservoir geology of productive leases in the Mattoon Project. Identify first Facies Defined Subunit for initial injectivity testing to be commenced near the beginning of the second quarter. Identify additional Facies Defined Subunits for injectivity testing and characterization during the second and third quarters. Award subcontract to the Illinois State Geological Survey and commence work on preparation of a geostatistical model (STRATAMODEL) of more than 100 wells on 1,000 acres within the Mattoon Project Area. Obtain oil samples from wells in the identified Facies Subunit for reservoir rock, fluid, and CO{sub 2} compatibility testing by the Illinois State Geological Survey. Design CO{sub 2} injection pumps and injection monitoring equipment configuration. Obtain bids for required pumps and diesel motor. Accomplishments for this quarter are reported.
Date: May 24, 1993
Creator: Baroni, M. R.
Object Type: Report
System: The UNT Digital Library
GPHS-RTGs in support of the Cassini mission. Semi-annual technical report, 29 March 1993--26 September 1993 (open access)

GPHS-RTGs in support of the Cassini mission. Semi-annual technical report, 29 March 1993--26 September 1993

The following tasks were reported on: Spacecraft integration and liaison, engineering support, safety, qualified unicouple fabrication, ETG fabrication/assembly/test, ground support equipment, RTG shipping and launch support, designs/reviews/mission applications, project management/quality assurance/contract changes.
Date: October 24, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Development of the prototype Munitions Case Moisture Meter, Model ORNL-1 (open access)

Development of the prototype Munitions Case Moisture Meter, Model ORNL-1

There is a great need for a rapid and simple means of determining the moisture content in combustible cartridge case (ccc) munitions. Previous studies have demonstrated that accumulation of moisture in ccc rounds, such as the M829, leads to softening of the case wall and weakening of the adhesive joint. Moisture in the ccc can lead to incomplete combustion of the case upon firing the round. Currently, there are no facile methods for measuring the moisture content. A prototype portable meter for non-destructive and rapid estimation of moisture in ccc has been developed. The Munitions Case Moisture Meter Model ORNL-1 demonstrates the feasibility of developing an instrument based on the moisture dependence of dielectric properties, to measure moisture in ccc munitions in storage and in the field. These instruments are simple, inexpensive, lightweight, portable, low-power battery operated, and intrinsically safe. They provide nondestructive, noninvasive, and rapid measurements. Calibration data for the prototype are not available at this time. Therefore, calibration of the meter and the development of a scale reading directly moisture content in munitions rounds could not be completed. These data will be supplied by the US Army from its tests of the meter with actual munitions. However, experimental …
Date: February 24, 1993
Creator: Agouridis, D. C.; Gayle, T. M. & Griest, W. H.
Object Type: Report
System: The UNT Digital Library
Low Temperature Thermal Expansion of G-10 Plastic and Mylar (open access)

Low Temperature Thermal Expansion of G-10 Plastic and Mylar

This engineering note is a summary of test information and conclusions from the thermal expansion tests conducted at D-O during the fall of 1992. Each test was conducted separately but using the same basic procedure and equipment. While information on material properties at room temperature and above for these products is quite well doccumented, the companies producing these products had no available data about the thermal properties of these materials at cryogenic temperatures. This lack of readily available information prompted these tests to determine the accuracy of using the elevated temperature data for lower temperatures also. The results of each test were written up separately as stand alone short reports for immediate use in the design stages of the V.L.P.C. cryostat cassette. Both short reports are gathered here for convenient reference.
Date: May 24, 1993
Creator: Bell, D.
Object Type: Report
System: The UNT Digital Library
Advanced secondary recovery demonstration for the Sooner Unit. [Quarterly] report, October 1992--January 1993 (open access)

Advanced secondary recovery demonstration for the Sooner Unit. [Quarterly] report, October 1992--January 1993

The objectives of the project are to demonstrate the effectiveness of geologically targeted infill drilling and improved reservoir management to obtain maximum oil recovery from the Sooner Unit field using water injection and gas recycling as secondary methods. The first phase of the project involves an integrated multi-discipline approach to identify optimum well sites and development of a reservoir operations plan. The second phase will involve drilling of up to three geologically targeted infill wells and establishing production/injection schedules. Reservoir simulation, transient well tests and careful production monitoring will be used to evaluate the results. The third phase will involve technology transfer through a series of technical papers and presentations of a short course. Emphasis will be on the economics of the project and the implemented technologies. Summary of technical progress is presented for: Well drilling and completion; seismic data acquisition; and geologic and engineering interpretation.
Date: February 24, 1993
Creator: Sippel, M.; Junkin, J.; Pritchett, R. & Hardage, B.
Object Type: Report
System: The UNT Digital Library
Progress on Polarized Target Materials With Pure Carbon Background (open access)

Progress on Polarized Target Materials With Pure Carbon Background

A previous note reviewed methods for the paramagnetic doping of materials for spin-polarized solid targets and some of the history of attempts to apply those methods to hydrocarbons. Since the earlier work on hydrocarbons had yielded, at best, rather mediocre results, that note also speculated on some ways to extend and, possibly, to improve upon the earlier work. The sharpest focus was on the light (number of carbons less than six) alkanes, since these are the hydrocarbons that have the highest hydrogen contents ({approx_gt} 17wt %) and therefore require the least degree of polarization to be interesting. This present note summarizes the subsequent work done, to date, exploring some of the issues related to the chemical doping method. The main areas of progress have been in the literature search, experimental results on glass formation by alkanes, and a polarizing test of a ``prototype`` hydrocarbon.
Date: March 24, 1993
Creator: Hill, D. A.; Crabb, D. G. & Krumpolc, M.
Object Type: Report
System: The UNT Digital Library
Mechanisms controlling the production and transport of methane, carbon dioxide, and dissolved solutes within a boreal peatland. Progress report, July 15, 1992--July 14, 1993 (open access)

Mechanisms controlling the production and transport of methane, carbon dioxide, and dissolved solutes within a boreal peatland. Progress report, July 15, 1992--July 14, 1993

The role of freshwater peatlands in the global methane cycle remains uncertain. Field measurements of methane emissions tend to be highly variable across a peatland and exhibit sharp seasonal fluctuations. The process of extrapolating these variable measurements to regional estimates is further complicated by rudimentary knowledge of the environmental controls can the production and emissions of methane from peat. The distribution of methanogenesis within the peat profile will strongly influence the response of methane emissions to potential climatic changes. During the summers of 1990 and 1991 we conducted a study on the mechanisms for the production, transport, and storage of methane within the Glacial Lake Agassiz peatland region as the regional climate shifted from extreme drought to a period of normal rainfall. This natural experiment provided unexpected insights on the linkages among climate, hydrology, and the methane cycle in large peat basins. This report presents project progress for period July 15, 1992--July 14, 1993
Date: June 24, 1993
Creator: Siegel, D. I.
Object Type: Report
System: The UNT Digital Library