D0 Silicon Upgrade: Thermal Analysis of the D0 Double Sided Ladders (open access)

D0 Silicon Upgrade: Thermal Analysis of the D0 Double Sided Ladders

A side view of the double sided ladder is shown in Figure 1. There are two types of double sided ladder; 6 chip and 9 chip. The 6 chip ladder has three SVX II chips mounted directly opposite the cooling channel and 3 chips mounted at the ladder end. The 9 chip ladder has 4 SVX II chips directly opposite the cooling channel and 5 chips at the ladder end. The power density is highest in the 6 chip ladder. All plots and calculations in this Engineering Note pertain to the 6 chip ladder with the understanding that the 9 chip temperature profile is somewhat improved over the 6 chip due to the reduced power density in the row of chips opposite the cooling channel. The two dimensional finite difference technique used for these calculations is described in DOEN 447 and will not be described here. The assumed thermal conductivity of beryllium is 190 W/m-K, and that of silicon is 149 W/m-K. The SVX II power dissipation is assumed 0.400 W. There is no cable or hybrid component power dissipation in this set of simulations. The epoxy in the glue joints consists of 2 mils thickness of thermally conductive epoxy …
Date: July 22, 1996
Creator: Ratzmann, Paul M.
Object Type: Report
System: The UNT Digital Library
Anti-proton tune measurements for the Fall 1995 accelerator studies (open access)

Anti-proton tune measurements for the Fall 1995 accelerator studies

A system to measure the tunes of a single antiproton (or proton) bunch was built and has been commissioned. The system achieved high sensitivity with a novel closed-orbit suppression system. The use of high bandwidth directional pickpus and kickers in conjunction with precise timing gates enabled the measurement of the tune of a single bunch.
Date: April 22, 1996
Creator: Marriner, John
Object Type: Report
System: The UNT Digital Library
Review Procedure for Arc Region Magnets (open access)

Review Procedure for Arc Region Magnets

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Date: January 22, 1996
Creator: Wei, J.; Peggs, S.; Tepikian, S.; Thompson, P.A. & Trahern, G. Trbojevic, D.
Object Type: Report
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
Choices of canisters and elements for the first fuel and canister sludge shipment from K East Basin (open access)

Choices of canisters and elements for the first fuel and canister sludge shipment from K East Basin

The K East Basin contains open-top canisters with up to fourteen N Reactor fuel assemblies distributed between the two barrels of each canister. Each fuel assembly generally consists of inner and outer concentric elements fabricated from uranium metal with zirconium alloy cladding. The canisters also contain varying amounts of accumulated sludge. Retrieval of sample fuel elements and associated sludge for examination is scheduled to occur in the near future. The purpose of this document is to specify particular canisters and elements of interest as candidate sources of fuel and sludge to be shipped to laboratories.
Date: March 22, 1996
Creator: Makenas, B. J.
Object Type: Report
System: The UNT Digital Library
Supersymmetry at LHC (open access)

Supersymmetry at LHC

Supersymmetry (SUSY) is an appealing concept which provides a plausible solution to the fine tuning problem, while leaving the phenomenological success of the Standard Model (SM) unchanged. Moreover, some SUSY models allow for the unification of gauge couplings at a scale of M{sub GUT} {approx} 10{sup 16} GeV. A further attractive feature is the possibility of radiative breaking of the electro-weak symmetry group SU(2) {times} U(1). The masses of the SUSY partners of the SM particles are expected to be in the range 100 GeV to 1 TeV. One of the main goals of the Large Hadron Collider (LHC) will be either to discover weak-scale SUSY or to exclude it over the entire theoretically allowed parameter space. The authors have developed a strategy for the analysis of experimental data at LHC which will allow them to determine the scale for supersymmetry, to limit the model parameter space, and to make precision measurements of model parameters.
Date: November 22, 1996
Creator: Bartl, A.; Soederqvist, J. & Paige, F.
Object Type: Report
System: The UNT Digital Library
Meson spectrum from the Bethe-Salpeter equation (open access)

Meson spectrum from the Bethe-Salpeter equation

We present details of a model for calculating the mass spectrum of light-quark mesons and decay constants of the pseudoscalar meson octet from a phenomenological model based on Dyson-Schwinger and Bethe-Salpeter equations. In this model the Bethe-Salpeter kernel is approximated by a separable ansatz obtained from input quark propagators. 13 refs., 2 tabs.
Date: January 22, 1996
Creator: Burden, C. J.; Qian, L.; Tandy, P. C.; Roberts, C. D. & Thomson, M. J.
Object Type: Article
System: The UNT Digital Library
Development of a video-based slurry sensor for on-line ash analysis. Quarterly report, April 1, 1996--June 30, 1996 (open access)

Development of a video-based slurry sensor for on-line ash analysis. Quarterly report, April 1, 1996--June 30, 1996

Automatic control of fine coal cleaning circuits has traditionally been limited by the lack of sensors for on-line ash analysis. Although several nuclear-based analyzers are available, none have seen widespread acceptance. This is largely due to the fact that nuclear sensors are expensive and tend to be influenced by changes in seam type and pyrite content. Recently, researchers at VPI&SU have developed an optical sensor for phosphate analysis. The sensor uses image processing technology to analyze video images of phosphate ore. It is currently being used by PCS Phosphate for off-line analysis of dry flotation concentrate. The primary advantages of optical sensors over nuclear sensors are that they are significantly cheaper, are not subject to measurement variations due to changes in high atomic number minerals, are inherently safer and require no special radiation permitting. The purpose of this work is to apply the knowledge gained in the development of an optical phosphate analyzer to the development of an on-line ash analyzer for fine coal slurries. During the past quarter, an industrially-hardened version of the video-based ash analyzer was designed and constructed. All components are now in place at the Middle Fork plant site awaiting the installation of a sample line …
Date: July 22, 1996
Creator: Adel, G. T. & Luttrell, G. H.
Object Type: Report
System: The UNT Digital Library
105-DR Large Sodium Fire Facility closure activities evaluation report (open access)

105-DR Large Sodium Fire Facility closure activities evaluation report

This report evaluates the closure activities at the 105-DR Large Sodium Fire Facility. The closure activities discussed include: the closure activities for the structures, equipment, soil, and gravel scrubber; decontamination methods; materials made available for recycling or reuse; and waste management. The evaluation compares these activities to the regulatory requirements and closure plan requirements. The report concludes that the areas identified in the closure plan can be clean closed.
Date: April 22, 1996
Creator: Adler, J. G.
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
Properties and processing of nanocrystalline materials. Quarterly report (open access)

Properties and processing of nanocrystalline materials. Quarterly report

The present Report completes the investigations in the frame of the project for the first year. It is important to estimate our achievements in the investigation of properties of nanocrystalline materials obtained by severe plastic deformation and their production. We think that the main results obtained can be summarized as follows: (1) We performed an improvement of the die-set for equal channel (ECA) pressing and torsion under high pressure with the aim to increase dimensions of the samples produced and to conduct processing of low ductile materials. (2) It was established that in pure metals severe plastic deformation led to the formation of an ultra fine-grained structure with a mean grain size of 100-200 nm, while in alloys due to severe plastic deformation and/or special methods of treatment (a decrease in the temperature of deformation, an increase of the pressure applied etc.) the grain size could be decreased down to a few tens of manometers.
Date: January 22, 1996
Creator: Valiev, R.Z.
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
The Savannah River Site`s Groundwater Monitoring Program, First Quarter 1996, Volumes I and II (open access)

The Savannah River Site`s Groundwater Monitoring Program, First Quarter 1996, Volumes I and II

This report summarizes the Savanna River Site (SRS) Groundwater Monitoring Program conducted by EPD/EMS during the first quarter 1996. It includes the analytical data, field data, data review, quality control, and other documentation for this program. It also provides a record of the program`s activities and serves as an official record of the analytical results.
Date: October 22, 1996
Creator: Rogers, C.D.
Object Type: Report
System: The UNT Digital Library
Audit of economic development grants and a cooperative agreement with East Tennessee not-for-profit organizations (open access)

Audit of economic development grants and a cooperative agreement with East Tennessee not-for-profit organizations

As a result of the end of the Cold War, the Department of Energy (Department) has downsized many of its facilities. This may have a negative impact on many communities that were heavily dependent on Departmental operations for economic stability. To lessen the negative effects on these communities, the Department has encouraged the formation of community reuse organizations that are responsible for acting on behalf of the community to determine and sponsor initiatives to offset the consequences of the Department`s downsizing. One such initiative has been the award of economic development grants and cooperative agreements. The objective of the audit was to determine whether economic development grants and a cooperative agreement with East Tennessee not-for-profit organizations were achieving the Department`s intended purposes.
Date: October 22, 1996
Creator: unknown
Object Type: Report
System: The UNT Digital Library
FY 1996 solid waste integrated life-cycle forecast volume summary - Volume 1 and Volume 2 (open access)

FY 1996 solid waste integrated life-cycle forecast volume summary - Volume 1 and Volume 2

Solid waste forecast volumes to be generated or received ;at Westinghouse Hanford Company`s Solid Waste program over the life cycle of the site are described in this report. Previous forecast summary reports have covered only a 30-year period; however, the life-cycle approach was adopted for this FY 1996 report to ensure consistency with waste volumes reported in the 1996 Multi-Year Program Plans (MYPP). The volume data were collected on a life-cycle basis from onsite and offsite waste generators who currently ship or plan to ship solid waste to the Solid Waste program. The volumes described in detail are low-level mixed waste (LLMW) and transuranic/transuranic-mixed (TRU(M)) waste. The volumes reported in this document represent the external volume of the containers selected to ship the waste. Summary level information pertaining to low-level waste (LLW) is described in Appendix B. Hazardous waste volumes are also provided in Appendices E and F but are not described in detail since they will be managed by a commercial facility. Emphasis is placed on LLMW and TRU(M) waste because it will require processing and storage at Hanford Solid Waste`s Central Waste Complex (CORK) prior to final disposal. The LLW will generally be sent directly to disposal. The …
Date: February 22, 1996
Creator: Valero, O.J.
Object Type: Report
System: The UNT Digital Library
Vapor sampling of the headspace of radioactive waste storage tanks (open access)

Vapor sampling of the headspace of radioactive waste storage tanks

This paper recants the history of vapor sampling in the headspaces of radioactive waste storage tanks at Hanford. The first two tanks to receive extensive vapor pressure sampling were Tanks 241-SY-101 and 241-C-103. At various times, a gas chromatography, on-line mass spectrometer, solid state hydrogen monitor, FTIR, and radio acoustic ammonia monitor have been installed. The head space gas sampling activities will continue for the next few years. The current goal is to sample the headspace for all the tanks. Some tank headspaces will be sampled several times to see the data vary with time. Other tanks will have continuous monitors installed to provide additional data.
Date: May 22, 1996
Creator: Reynolds, D. A.
Object Type: Article
System: The UNT Digital Library
Small-scale demonstration of nonthermal plasma VOC treatment at Tinker AFB (open access)

Small-scale demonstration of nonthermal plasma VOC treatment at Tinker AFB

Nonthermal plasma (NTP) technology is a promising candidate for the treatment of air pollutants. An NTP is different from a thermal plasma in that high energy electrons are used to create chemically active species without raising the gas to high temperatures. NTPs have the potential of simultaneous removal of multiple air pollutants with better control over treatment byproducts. A silent discharge plasma (SDP) configuration is one method of easily generating such a nonthermal plasma. Silent electrical discharge plasma (dielectric barrier) reactors can decompose gas-phase pollutants by free-radical attack or electron-induced fragmentation. The radicals or electrons are produced by the large average volume nonthermal plasmas generated in the reactor. In the past decade, the barrier configuration has attracted attention for destroying toxic chemical agents for the military, removing harmful greenhouse gases (oxides of sulfur and nitrogen - SO{sub x} and NO{sub x}), and treating other environmentally-hazardous chemical compounds (hydrocarbons, chlorocarbons, and chlorofluorocarbons). At the Los Alamos National Laboratory (LANL), the authors have been studying the silent discharge plasma for processing gaseous-based hazardous chemicals for approximately five years. The key objective is to convert hazardous or toxic chemicals into non-hazardous compounds or into materials which are more easily managed. The main applications …
Date: October 22, 1996
Creator: Korzekwa, R. A. & Rosocha, L. A.
Object Type: Report
System: The UNT Digital Library
Probing quartic couplings through three gauge boson production at an e{sup +}e{sup {minus}} linear collider (open access)

Probing quartic couplings through three gauge boson production at an e{sup +}e{sup {minus}} linear collider

We explore the capability of a 500 or 1000 GeV e{sup +} e{sup {minus}} linear collider to measure anomalous quartic gauge boson couplings. In the framework of a non-linear effective Lagrangian with a custodial SU(2) symmetry, there are only two next-to-leading order operators which contribute to quartic, but not to two- and three-gauge boson interactions. The limits on the coefficients of these operators from present and future e{sup +} e{sup {minus}} colliders are compared with those available from other sources.
Date: November 22, 1996
Creator: Dawson, S.; Likhoded, A.; Valencia, G. & Yushchenko, O.
Object Type: Article
System: The UNT Digital Library
Maintenance of the coal sample bank and database. Quarterly report, October 1, 1995--December 31, 1995 (open access)

Maintenance of the coal sample bank and database. Quarterly report, October 1, 1995--December 31, 1995

This five year project is intended to ensure the availability of well- characterized high-quality coal samples for public and private coal research. It continues support of the DOE Coal Sample Bank and Database at the Pennsylvania State University. Eleven coal samples will be collected, processed, packaged, and analyzed, and a resulting database will be maintained. these samples and data, as well as 45 samples collected under previous contract, will be distributed to DOE contractors and others performing coal research. Samples will be chosen to maintain a sample bank of 56 coals representing the major U.S. coal fields and a variety of coal ranks and compositions. In addition to standard analyses, liquefaction tests and organic geochemical analyses will be performed. The samples will be stored to minimize deterioration and 10 samples will be monitored annually by proximate, sulfur forms, and gaseous oxygen analysis to evaluate their condition. This report describes the tasks performed during the period October 1, 1995 through December 31, 1995 including storage and inventory of samples, monitoring of sample quality and characterization of coal samples.
Date: March 22, 1996
Creator: Davis, A. & Glick, D. C.
Object Type: Report
System: The UNT Digital Library
Multiple mechanisms of thermally activated plastic flow in shocked and unshocked tantalum. Revision 1 (open access)

Multiple mechanisms of thermally activated plastic flow in shocked and unshocked tantalum. Revision 1

We argue that the principal features of the plastic flow behavior of Ta can be described a model that incorporates a two-component Peierls-type mechanism and an ``obstacle`` mechanism in series. We compare results of calculations based on such a model with flow data for unalloyed Ta before and after shock loading to 45 GPa for 1.8 {mu}s. Our data suggest that the shock loading changes only structural parameters.
Date: April 22, 1996
Creator: Gourdin, W.H. & Lassila, D.H.
Object Type: Article
System: The UNT Digital Library
Final report for tank 241-AY-101, grab samples 1AY-96-1 through 1AY-96-10 and 1AY-96-FB (open access)

Final report for tank 241-AY-101, grab samples 1AY-96-1 through 1AY-96-10 and 1AY-96-FB

This report contains tables of the analytical results from grab samples from tank 241-AY-101. Activity levels of radionuclides are tabulated. This tanks has not been watch listed.
Date: July 22, 1996
Creator: Esch, R.A.
Object Type: Report
System: The UNT Digital Library
High SO{sub 2} removal efficiency testing: Evaluation of high efficiency test results at Hoosier Energy`s Merom Station (open access)

High SO{sub 2} removal efficiency testing: Evaluation of high efficiency test results at Hoosier Energy`s Merom Station

Tests were conducted at Hoosier Energy`s Merom Station 535-MW Units 1 and 2 wet limestone flue gas desulfurization (FGD) systems to evaluate options for achieving high SO{sub 2} removal efficiency. The options tested included use of dibasic acid (DBA) and sodium formate additives as well as operation at higher reagent ratios (higher pH set points). In addition to the tested options, the effectiveness of other potential options was simulated using the Electric Power Research Institute`s FGD Process Integration and Simulation Model (FGDPRISM) after it was calibrated to the system. An economic analysis was done to determine the cost effectiveness of each option. A summary of results is given on the following: SO{sub 2} removal performance; additive consumption; and SO{sub 2} removal upgrade economics.
Date: April 22, 1996
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Radioactive air emissions notice of construction portable/temporary radioactive air emission units (open access)

Radioactive air emissions notice of construction portable/temporary radioactive air emission units

This notice of construction (NOC) requests a categorical approval for construction and operation of three types of portable/temporary radionuclide airborne emission units (PTRAEUs). These three types are portable ventilation-filter systems (Type 1), mobile sample preparation facilities (Type II), and mobile sample screening and analysis facilities (Type III). Approval of the NOC application is intended to allow construction and operation of the three types of PTRAEUs without prior project-specific approval. Environmental cleanup efforts on the Hanford Site often require the use of PTRAEUS. The PTRAEUs support site characterization activities, expedited response actions (ERAs), sampling and monitoring activities, and other routine activities. The PTRAEUs operate at various locations around the Hanford Site.
Date: October 22, 1996
Creator: Hays, C.B.
Object Type: Report
System: The UNT Digital Library
CNI polarimetry and the hadronic spin dependence of pp scattering (open access)

CNI polarimetry and the hadronic spin dependence of pp scattering

Methods for limiting the size of hadronic spin-flip in the Coulomb- Nuclear Interference. region are critically assessed. This work was presented at the High Energy Polarimetry Workshop in Amsterdam, Sept. 9, 1996 and the RHIC Spin Collaboration meeting in Marseille, Sept. 17, 1996.
Date: November 22, 1996
Creator: Trueman, T. L.
Object Type: Article
System: The UNT Digital Library