SM01a and SM01b test results (open access)

SM01a and SM01b test results

None
Date: February 18, 2002
Creator: Coccoli, Mirco & Chiesa, Luisa
Object Type: Report
System: The UNT Digital Library
Interim Measure/Interim Action Post-Construction Report (PCR) for the Old Radioactive Waste Burial Ground (643-E) (open access)

Interim Measure/Interim Action Post-Construction Report (PCR) for the Old Radioactive Waste Burial Ground (643-E)

The Burial Ground Complex (BGC) occupies approximately 194 acres in the central part of Savannah River Site (SRS) in E-Area between the F and H Separations Areas. The BGC is divided into a northern area containing approximately 118 acres and a southern area containing approximately 76 acres. The southern area is the Old Radioactive Waste Burial Ground (ORWBG), 643-E, which consists of an earthen trench disposal area that began receiving waste in 1952 and was filled in 1972. This portion of the BGC is addressed by this interim measure/interim action.
Date: June 18, 2002
Creator: Bennett, J.
Object Type: Report
System: The UNT Digital Library
Physical Properties Models for Simulation of Processes to Treat INEEL Tank Farm Waste: Thermodynamic Equilibrium (open access)

Physical Properties Models for Simulation of Processes to Treat INEEL Tank Farm Waste: Thermodynamic Equilibrium

A status is presented of the development during FY2002 of a database for physical properties models for the simulation of the treatment of Sodium-Bearing Waste (SBW) at the Idaho National Engineering and Environmental Laboratory. An activity coefficient model is needed for concentrated, aqueous, multi-electrolyte solutions that can be used by process design practitioners. Reasonable first-order estimates of activity coefficients in the relevant media are needed rather than an incremental improvement in theoretical approaches which are not usable by practitioners. A comparison of the Electrolyte Non-Random Two-Liquid (ENRTL) and Pitzer ion-interaction models for the thermodynamic representation of SBW is presented. It is concluded that Pitzer's model is superior to ENRTL in modeling treatment processes for SBW. The applicability of the Pitzer treatment to high concentrations of pertinent species and to the determination of solubilities and chemical equilibria is addressed. Alternate values of Pitzer parameters for HCl, H2SO4, and HNO3 are proposed, applicable up to 16m, and 12m, respectively. Partial validation of the implementation of Pitzer's treatment within the commercial process simulator ASPEN Plus was performed.
Date: July 18, 2002
Creator: Nichols, T. T. & Taylor, D. D.
Object Type: Report
System: The UNT Digital Library
Corrective Action Investigation Plan for Corrective Action Unit 140: Waste Dumps, Burn Pits, and Storage Area, Nevada Test Site, Nevada, July 2002, Rev. No. 0 (open access)

Corrective Action Investigation Plan for Corrective Action Unit 140: Waste Dumps, Burn Pits, and Storage Area, Nevada Test Site, Nevada, July 2002, Rev. No. 0

This Corrective Action Investigation Plan contains the U.S. Department of Energy, National Nuclear Security Administration Nevada Operations Office's approach to collect the data necessary to evaluate corrective action alternatives appropriate for the closure of Corrective Action Unit (CAU) 140 under the Federal Facility Agreement and Consent Order. Corrective Action Unit 140 consists of nine Corrective Action Sites (CASs): 05-08-01, Detonation Pits; 05-08-02, Debris Pits; 05-17-01, Hazardous Waste Accumulation Site (Buried); 05-19-01, Waste Disposal Site; 05-23-01, Gravel Gertie; 05-35-01, Burn Pit; 05-99-04, Burn Pit; 22-99-04, Radioactive Waste Dump; 23-17-01, Hazardous Waste Storage Area. All nine of these CASs are located within Areas 5, 22, and 23 of the Nevada Test Site (NTS) in Nevada, approximately 65 miles northwest of Las Vegas. This CAU is being investigated because disposed waste may be present without appropriate controls (i.e., use restrictions, adequate cover) and hazardous and/or radioactive constituents may be present or migrating at concentrations and locations that could potentially pose a threat to human health and the environment. The NTS has been used for various research and development projects including nuclear weapons testing. The CASs in CAU 140 were used for testing, material storage, waste storage, and waste disposal. A two-phase approach has …
Date: July 18, 2002
Creator: United States. National Nuclear Security Administration. Nevada Operations Office.
Object Type: Report
System: The UNT Digital Library
Optimization of the Epithermal Neutron Beam for Boron Neutron Capture Therapy at the Brookhaven Medical Research Reactor. (open access)

Optimization of the Epithermal Neutron Beam for Boron Neutron Capture Therapy at the Brookhaven Medical Research Reactor.

Clinical trials of Boron Neutron Capture Therapy for patients with malignant brain tumor had been carried out for half a decade, using an epithermal neutron beam at the Brookhaven's Medical Reactor. The decision to permanently close this reactor in 2000 cut short the efforts to implement a new conceptual design to optimize this beam in preparation for use with possible new protocols. Details of the conceptual design to produce a higher intensity, more forward-directed neutron beam with less contamination from gamma rays, fast and thermal neutrons are presented here for their potential applicability to other reactor facilities. Monte Carlo calculations were used to predict the flux and absorbed dose produced by the proposed design. The results were benchmarked by the dose rate and flux measurements taken at the facility then in use.
Date: August 18, 2002
Creator: Hu, J. P.; Rorer, D. C.; Reciniello, R. N. & Holden, N. E.
Object Type: Article
System: The UNT Digital Library
Lead-bismuth target design for the subcritical multiplier (SCM) of the accelerator driven test facility (ADTF). (open access)

Lead-bismuth target design for the subcritical multiplier (SCM) of the accelerator driven test facility (ADTF).

A lead-bismuth eutectic (LBE) target design concept has been developed to drive the subcritical multiplier (SCM) of the accelerator-driven test facility (ADTF). This report gives the target design description, the results from the parametric studies, and the design analyses including physics, heat-transfer, hydraulics, structural, radiological, and safety analyses. The design is based on a coaxial geometrical configuration to minimize the target footprint and to maximize the utilization of the spallation neutrons. The target is installed vertically along the SCM axis. LBE is the target material and the target coolant. Ferritic steel (HT-9 alloy) is the selected structural material based on the current database and the design analyses. Austenitic steel (Type 316 stainless steel) is the backup choice. A uniform proton beam is employed to perform the spallation process. The proton beam has 8.33-mA current and 8.14-cm radius resulting in a current density of 40 {micro}A/cm{sup 2}. The beam power is 5 MW and the proton energy is 600 MeV. The beam tube has 10-cm radius to accommodate the halo current. A hemi-spherical geometry is used for the target window, which is connected to the beam tube. A conical target window with a rounded tip is also considered since it has …
Date: April 18, 2002
Creator: Gohar, Y.; Finck, P. J.; Krajtl, L.; Herceg, J.; Pointer, W. D.; Saiveau, J. et al.
Object Type: Report
System: The UNT Digital Library
Isomerization of linear to angular [3]phenylene and PAHs under flash vacuum pyrolysis conditions (open access)

Isomerization of linear to angular [3]phenylene and PAHs under flash vacuum pyrolysis conditions

None
Date: January 18, 2002
Creator: Dosa, Peter I.; Schleifenbaum, Andreas & Vollhardt, K. Peter C.
Object Type: Article
System: The UNT Digital Library
Preparing emergency response teams for effective risk communications. (open access)

Preparing emergency response teams for effective risk communications.

None
Date: June 18, 2002
Creator: Ingle, K.
Object Type: Article
System: The UNT Digital Library
U.S.A. visibility monitoring, trends, and regulatory programs and their relevance to Korea. (open access)

U.S.A. visibility monitoring, trends, and regulatory programs and their relevance to Korea.

This paper describes visibility monitoring and regulatory programs in the United States, particularly within certain designated National Parks and Wilderness Areas. Government agencies responsible for the management of federal lands, in cooperation with other federal, state, and regional air quality organizations, have established a monitoring program of more than 125 sites. Recent visual documentation (scene images), optical measurements, and aerosol characterizations (mass and chemical speciation) obtained at selected monitoring sites are presented, as information on general spatial and temporal visibility trends. National regulations are described that limit the amount of additional visibility impairment from new or modified emission sources and that establish a schedule for improving existing conditions in designated areas. The relevance of the experience in developing and implementing these programs to the planning for programs to address emerging visibility problems in Korea is discussed.
Date: June 18, 2002
Creator: Archer, S. F. & Chun, K. C.
Object Type: Article
System: The UNT Digital Library
Experimental Study of Lower-hybrid Drift Turbulence in a Reconnecting Current Sheet (open access)

Experimental Study of Lower-hybrid Drift Turbulence in a Reconnecting Current Sheet

The role of turbulence in the process of magnetic reconnection has been the subject of a great deal of study and debate in the theoretical literature. At issue in this debate is whether turbulence is essential for fast magnetic reconnection to occur in collisionless current sheets. Some theories claim it is necessary in order to provide anomalous resistivity, while others present a laminar fast reconnection mechanism based on the Hall term in the generalized Ohm's law. In this work, a thorough study of electrostatic potential fluctuations in the current sheet of the Magnetic Reconnection Experiment (MRX) [M. Yamada et al., Phys. Plasmas 4, 1936 (1997)] was performed in order to ascertain the importance of turbulence in a laboratory reconnection experiment. Using amplified floating Langmuir probes, broadband fluctuations in the lower hybrid frequency range (fLH approximately 5-15 MHz) were measured which arise with the formation of the current sheet in MRX. The frequency spectrum, spatial amplitude profile, and spatial correlation characteristics of the measured turbulence were examined carefully, finding consistency with theories of the lower-hybrid drift instability (LHDI). The LHDI and its role in magnetic reconnection has been studied theoretically for decades, but this work represents the first detection and detailed …
Date: June 18, 2002
Creator: T.A. Carter, M. Yamada, H. Ji, R.M. Kulsrud, and F. Trintchouk
Object Type: Report
System: The UNT Digital Library
Synthesis and crystal structures of (fulvalene)W2(SH)2(CO)6, (fulvalene)W2(mu-S2)(CO)6, and (fulvalene)W2(mu-S)(CO)6-low valent tungsten carbonyl sulfide and disulfide complexes stabilized by the bridging fulvalene ligand (open access)

Synthesis and crystal structures of (fulvalene)W2(SH)2(CO)6, (fulvalene)W2(mu-S2)(CO)6, and (fulvalene)W2(mu-S)(CO)6-low valent tungsten carbonyl sulfide and disulfide complexes stabilized by the bridging fulvalene ligand

None
Date: January 18, 2002
Creator: Capps, Kenneth B.; Bauer, Andreas; Abboud, Khalil; Wasser, Ian M.; Vollhardt, K. Peter C. & Hoff, Carl D.
Object Type: Article
System: The UNT Digital Library
ICRF Wave Propagation and Absorption in Plasmas with Non-thermal Populations (open access)

ICRF Wave Propagation and Absorption in Plasmas with Non-thermal Populations

Some results obtained with the one dimensional, all orders, full wave code METS, which has been successfully employed in the past to describe a number of experiments, are reported. By using massively parallel computers, this code has been extended to handle non-thermal populations. Various physical situations, in which non-Maxwellian species are expected to be encountered, are studied, such as simultaneous neutral beam injection and high harmonic fast wave electron heating or ion cyclotron resonance heating in the presence of fusion products.
Date: June 18, 2002
Creator: Dumont, R.J.; Phillips, C.K. & Smithe, D.N.
Object Type: Report
System: The UNT Digital Library
Ergonomic Improvements for Foundries (open access)

Ergonomic Improvements for Foundries

The goal of this project was to make improvements to the production systems of the steel casting industry through ergonomic improvements. Because of the wide variety of products, the wide range of product sizes, and the relatively small quantities of any particular product, manual operations remain a vital part of the production systems of the steel casting companies. Ergonomic improvements will assist the operators to more efficiently and consistently produce quality products.
Date: June 18, 2002
Creator: Peters, Frank & Patterson, Patrick
Object Type: Report
System: The UNT Digital Library
Unit-Specific Amended Plug-In Proposed Plan for the C-Area Reactor Seepage Basin (904-67G) and L-Area Reactor Seepage Basin (904-64G) (open access)

Unit-Specific Amended Plug-In Proposed Plan for the C-Area Reactor Seepage Basin (904-67G) and L-Area Reactor Seepage Basin (904-64G)

This document provides the technical information needed to demonstrate that these operable units (OUs) met the requirements for using the Plug-in ROD to specify the remediation for these OUs.
Date: June 18, 2002
Creator: Eisenstat, P.
Object Type: Report
System: The UNT Digital Library
A Neutral Beam Injector Upgrade for NSTX (open access)

A Neutral Beam Injector Upgrade for NSTX

The National Spherical Torus Experiment (NSTX) capability with a Neutral Beam Injector (NBI) capable of 80 kiloelectronvolt (keV), 5 Megawatt (MW), 5 second operation. This 5.95 million dollar upgrade reused a previous generation injector and equipment for technical, cost, and schedule reasons to obtain these specifications while retaining a legacy capability of 120 keV neutral particle beam delivery for shorter pulse lengths for possible future NSTX experiments. Concerns with NBI injection included power deposition in the plasma, aiming angles from the fixed NBI fan array, density profiles and beam shine through, orbit losses of beam particles, and protection of the vacuum vessel wall against beam impingement. The upgrade made use of the beamline and cryo panels from the Neutral Beam Test Stand facility, existing power supplies and controls, beamline components and equipment not contaminated by tritium during DT [deuterium-tritium] experiments, and a liquid Helium refrigerator plant to power and cryogenically pump a beamline and three ion sources. All of the Tokamak Fusion Test Reactor (TFTR) ion sources had been contaminated with tritium, so a refurbishment effort was undertaken on selected TFTR sources to rid the three sources destined for the NSTX NBI of as much tritium as possible. An interconnecting …
Date: January 18, 2002
Creator: Stevenson, T.; McCormack, B; Loesser, G.D.; Kalish, M.; Ramakrishnan, S.; Grisham, L. et al.
Object Type: Report
System: The UNT Digital Library
Elliptic Flow from Color Glass Condensate (open access)

Elliptic Flow from Color Glass Condensate

We show that an observable fraction of the measured elliptic flow may originate in classical gluon fields at the initial stage of a peripheral high-energy nuclear collision. This mechanism complements the contribution of late stage mechanisms, such as those described by hydrodynamics, to the observed elliptic flow.
Date: July 18, 2002
Creator: Krasnitz, A.; Nara, Y. & Venugopalan, R.
Object Type: Article
System: The UNT Digital Library
Two-D Simulations of Flow and Transport on a Meter-Sized Unsaturated Fractured Tuff Block (open access)

Two-D Simulations of Flow and Transport on a Meter-Sized Unsaturated Fractured Tuff Block

Two-D numerical flow and transport experiments were performed with a meter-sized unsaturated fractured block in an attempt to validate the active fracture model (AFM) by estimating {gamma}, a positive constant relating the fraction of active fractures to the effective water saturation for the block. Two different models developed for the study include a discrete fracture network model (DFNM) and a dual continuum model (DCM). The DFNM served to synthetically generate experimental measurements for water flow rates and tracer breakthroughs, against which numerical simulation data with DCM was calibrated to estimate {gamma} values for the fracture network. Water flow rates were monitored at both top and bottom to find balanced (''pseudo-steady'') states, when a pulse of tracer injection was initiated from the top of the block. During the transient state, water flow rates in DCM did not closely predict the measurements from DFNM, which show step-wise increments with time. Based on goodness-of-fit values, the water flow rates in the range of 7.12 x 10{sup -8} and 7.12 x 10{sup -7} kg/s (0.2-2.0 % of the saturated flow rate) provide better estimates of {gamma}. The DCM may be not suitable to estimate {gamma} when the injection rates are too high or low. …
Date: September 18, 2002
Creator: Seol, Y.; Kneafsey, T.; Finsterle, S. & Ito, K.
Object Type: Report
System: The UNT Digital Library
A Guidance Document for Kentucky's Oil and Gas Operators (open access)

A Guidance Document for Kentucky's Oil and Gas Operators

The accompanying report, manual and assimilated data represent the initial preparation for submission of an Application for Primacy under the Class II Underground Injection Control (UIC) program on behalf of the Commonwealth of Kentucky. The purpose of this study was to identify deficiencies in Kentucky law and regulation that would prevent the Kentucky Division of Oil and Gas from receiving approval of primacy of the UIC program, currently under control of the United States Environmental Protection Agency (EPA) in Atlanta, Georgia.
Date: March 18, 2002
Creator: Bender, Rick
Object Type: Report
System: The UNT Digital Library
Higgs sectors in which the only light higgs boson is CP-odd and linear collider strategies for its discovery (open access)

Higgs sectors in which the only light higgs boson is CP-odd and linear collider strategies for its discovery

We survey techniques for finding a CP-odd Higgs boson, A{sup 0}, at the Linear Collider that do not depend upon the presence of other light Higgs bosons. The potential reach in [m{sub A{sup 0}}, tan {beta}] parameter space for various production/discovery modes is evaluated and regions where discovery might not be possible at a given {radical}s are delineated. We give, for the first time, results for e{sup +}e{sup -} {yields} {nu}{bar {nu}} A{sup 0} one-loop W boson fusion production.
Date: February 18, 2002
Creator: Tom Farris, John F. Gunion and Heather E. Logan
Object Type: Article
System: The UNT Digital Library
VERY LONG BASELINE NEUTRINO OSCILLATION EXPERIMENTS FOR PRECISE MEASURMENTS OF OSCILLATION PARAMETERS AND SEARCH FOR N MU YIELDS N EPSILON. (open access)

VERY LONG BASELINE NEUTRINO OSCILLATION EXPERIMENTS FOR PRECISE MEASURMENTS OF OSCILLATION PARAMETERS AND SEARCH FOR N MU YIELDS N EPSILON.

Brookhaven National Laboratory and collaborators started a neutrino working group to identify new opportunities in the field of neutrino oscillations and explore how our laboratory facilities can be used to explore this field of research. The memo to the working group and the charge are included in Appendix I. This report is the result of the deliberations of the working group. Previously, we wrote a letter of intent to build a new high intensity neutrino beam at BNL. A new intense proton beam will be used to produce a conventional horn focused neutrino beam directed at a detector located in either the Homestake mine in Lead, South Dakota at 2540 km or the Waste Isolation Pilot Plant (WIPP) in Carlsbad, NM at 2880 km. As a continuation of the study that produced the letter of intent, this report examines several items in more detail. We mainly concentrate on the use of water Cherenltov detectors because of their size, resolution, and background rejection capability, and cost. We examine the prospects of building such a detector in the Homestake mine. The accelerator upgrade will be carried out in phases. We expect the first phase to yield a 0.4 MW proton beam and …
Date: October 18, 2002
Creator: Diwan, M.; Marciano, W.; Weng, W.; Beavis, D.; Brennan, M.; Chen, M. C. et al.
Object Type: Report
System: The UNT Digital Library
General Models for Assessing Hazards Aircraft Pose to Surface Facilities (open access)

General Models for Assessing Hazards Aircraft Pose to Surface Facilities

This paper derives formulas for estimating the frequency of accidental aircraft crashes into surface facilities. Objects unintentionally dropped from aircraft are also considered. The approach allows the facility to be well within the flight area; inside the flight area, but close to the edge; or completely outside the flight area.
Date: November 18, 2002
Creator: Ragan, G.E.
Object Type: Report
System: The UNT Digital Library
RAPID MAPPING TOOL: AN ARCMAP EXTENSION (open access)

RAPID MAPPING TOOL: AN ARCMAP EXTENSION

Cartographic production laboratories produce large volumes of maps for diverse customers. Turnaround time and consistency are key concerns. The Rapid Mapping Tool is an ArcMap based tool that enables rapid creation of maps to meet customer needs. This tool was constructed using VB/VBA, ArcObjects, and ArcGIS templates. The core capability of ArcMap is extended for custom map production by storing specifications associated with a map or template in a companion XML document. These specifications include settings and preferences used to create custom maps. The tool was developed as a component of an enterprise GIS, which enables spatial data management and delivery using ArcSDE, ArcIMS, Oracle, and a web-based request tracking system.
Date: June 18, 2002
Creator: LINGER, STEVE P.; RICH, PAUL M.; WALTHER, DOUG; WITKOWSKI, MARC S.; JONES, MARCIA A. & KHALSA, HARI S.
Object Type: Article
System: The UNT Digital Library
Results of NSTX Heating Experiments (open access)

Results of NSTX Heating Experiments

The National Spherical Torus Experiment (NSTX) at Princeton is designed to assess the potential of the low-aspect-ratio spherical torus concept for magnetic plasma confinement. The plasma has been heated by up to 5 MW of neutral beam injection, NBI, at an injection energy of 90 keV and up to 6 MW of high harmonic fast wave, HHFW, at 30 MHz. NSTX has achieved beta T of 32%. A variety of MHD phenomena have been observed to limit eta. NSTX has now begun addressing E scaling, eta limits and current drive issues. During the NBI heating experiments, a broad Ti profile with Ti up to 2 keV, Ti > Te and a large toroidal rotation. Transport analysis suggests that the impurity ions have diffusivities approaching neoclassical. For L-Mode plasmas, E is up to two times the ITER-89P L-Mode scaling and exceeds the ITER-98pby2 H-Mode scaling in some cases. Transitions to H-Mode have been observed which result in an approximate doubling of tE. after the transition in some conditions. During HH FW heating, Te > Ti and Te up to 3.5 keV were observed. Current drive has been studied using coaxial helicity injection (CHI), which has produced 390 kA of toroidal current …
Date: June 18, 2002
Creator: Mueller, D.; Ono, M.; Bell, M. G.; Bell, R. E.; Bitter, M.; Bourdelle, C. et al.
Object Type: Report
System: The UNT Digital Library
Assessment of Options for the Collection, Handling, and Transport of Corn Stover (open access)

Assessment of Options for the Collection, Handling, and Transport of Corn Stover

In this report, we discuss the logistics and estimate the delivered costs for collecting, handling, and hauling corn stover to an ethanol conversion facility. We compare costs for two conventional baling systems (large round bales and large rectangular bales), a silage-harvest system, and an unprocessed-pickup system. Our results generally indicate that stover can be collected, stored, and hauled for about $43.60 to $48.80/dry ton ($48.10-$53.80/dry Mg) using conventional baling equipment for conversion facilities ranging in size from 500 to 2000 dry tons/day (450-1810 dry Mg/day). These estimates are inclusive of all costs including farmer payments for the stover. Our results also suggest that costs might be significantly reduced with an unprocessed stover pickup system provided more efficient equipment is developed.
Date: November 18, 2002
Creator: Perlack, R.D.
Object Type: Report
System: The UNT Digital Library