Characterization, Transport and Remedial Options for Radioactive Strontium and Cesium Contaminated Sites (open access)

Characterization, Transport and Remedial Options for Radioactive Strontium and Cesium Contaminated Sites

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Date: July 6, 1999
Creator: Mason, C.; Lu, N. & Conca, J.
Object Type: Article
System: The UNT Digital Library
Cold Vacuum Drying (CVD) Facility General Service Helium System Design Description (open access)

Cold Vacuum Drying (CVD) Facility General Service Helium System Design Description

This document describes the Cold Vacuum Drying Facility general service helium system (GSHe). The GSHe is a general service facility process support system, but does include safety-class systems, structures and components providing protection to the offsite public. The GSHe also performs safety-significant functions that provide protection to onsite workers. The GSHe essential function is to provide helium to support process functions during all phases of facility operations. GSHe helium is used to purge the cask and the MCO in order to maintain their internal atmospheres below hydrogen flammability concentrations. The GSHe also supplies helium to purge the PWC lines and components and the VPS vacuum pump.
Date: July 6, 1999
Creator: Farwick, C. C.
Object Type: Report
System: The UNT Digital Library
Cold Vacuum Drying facility civil structural system design description (SYS 06) (open access)

Cold Vacuum Drying facility civil structural system design description (SYS 06)

This document describes the Cold Vacuum Drying (CVD) Facility civil - structural system. This system consists of the facility structure, including the administrative and process areas. The system's primary purpose is to provide for a facility to house the CVD process and personnel and to provide a tertiary level of containment. The document provides a description of the facility and demonstrates how the design meets the various requirements imposed by the safety analysis report and the design requirements document.
Date: July 6, 1999
Creator: PITKOFF, C.C.
Object Type: Report
System: The UNT Digital Library
Cold Vacuum Drying facility condensate collection system design description (SYS 19) (open access)

Cold Vacuum Drying facility condensate collection system design description (SYS 19)

This document describes the Cold Vacuum Drying Facility (CVDF) condensate collection system (CCS). The function of the CCS is to collect cooling coil condensate from air-handling units in the CVDF and to isolate the condensate in collection tanks until the condensate is determined to be acceptable to drain to the effluent drain collection basin.
Date: July 6, 1999
Creator: PITKOFF, C.C.
Object Type: Report
System: The UNT Digital Library
Cold Vacuum Drying facility crane and hoist system design description (SYS 14) (open access)

Cold Vacuum Drying facility crane and hoist system design description (SYS 14)

This document describes the Cold Vacuum Drying Facility (CVDF) crane and hoist system. The overhead crane and hoist system is located in the process bays of the CVDF. It supports the processes required to drain the water and dry the spent nuclear fuel contained in the multi-canister overpacks after they have been removed from the K-Basins. The cranes will also be used to assist maintenance activities within the bays, as required.
Date: July 6, 1999
Creator: PITKOFF, C.C.
Object Type: Report
System: The UNT Digital Library
Cold Vacuum Drying facility effluent drain system design description (SYS 18) (open access)

Cold Vacuum Drying facility effluent drain system design description (SYS 18)

This document describes the Cold Vacuum Drying Facility (CVDF) effluent drain system (EFS). The primary function of the EFS is to collect and transport fire suppression water discharged into a CVDF process bay to a retention basin located outside the facility. The EFS also provides confinement of spills that occur inside a process bay and allows non-contaminated water that drains to the process bay sumps to be collected until sampling and analysis are complete.
Date: July 6, 1999
Creator: PITKOFF, C.C.
Object Type: Report
System: The UNT Digital Library
Cold Vacuum Drying facility fire protection system design description (SYS 24) (open access)

Cold Vacuum Drying facility fire protection system design description (SYS 24)

This document describes the Cold Vacuum Drying Facility (CVDF) fire protection system (FPS). The FPS provides fire detection, suppression, and loss limitation for the CVDF structure, personnel, and in-process spent nuclear fuel. The system provides, along with supporting interfacing systems, detection, alarm, and activation instrumentation and controls, distributive piping system, isolation valves, and materials and controls to limit combustibles and the associated fire loadings.
Date: July 6, 1999
Creator: PITKOFF, C.C.
Object Type: Report
System: The UNT Digital Library
Cold Vacuum Drying facility personnel monitoring system design description (SYS 12) (open access)

Cold Vacuum Drying facility personnel monitoring system design description (SYS 12)

This document describes the Cold Vacuum Drying Facility (CVDF) instrument air (IA) system that provides instrument quality air to the CVDF. The IA system provides the instrument quality air used in the process, HVAC, and HVAC instruments. The IA system provides the process skids with air to aid in the purging of the annulus of the transport cask. The IA system provides air for the solenoid-operated valves and damper position controls for isolation, volume, and backdraft in the HVAC system. The IA system provides air for monitoring and control of the HVAC system, process instruments, gas-operated valves, and solenoid-operated instruments. The IA system also delivers air for operating hand tools in each of the process bays.
Date: July 6, 1999
Creator: PITKOFF, C.C.
Object Type: Report
System: The UNT Digital Library
Data Quality Objectives for Regulatory Requirements for Hazardous and Radioactive Air Emissions Sampling and Analysis (open access)

Data Quality Objectives for Regulatory Requirements for Hazardous and Radioactive Air Emissions Sampling and Analysis

This document describes the results of the data quality objective (DQO) process undertaken to define data needs for state and federal requirements associated with toxic, hazardous, and/or radiological air emissions under the jurisdiction of the River Protection Project (RPP). Hereafter, this document is referred to as the Air DQO. The primary drivers for characterization under this DQO are the regulatory requirements pursuant to Washington State regulations, that may require sampling and analysis. The federal regulations concerning air emissions are incorporated into the Washington State regulations. Data needs exist for nonradioactive and radioactive waste constituents and characteristics as identified through the DQO process described in this document. The purpose is to identify current data needs for complying with regulatory drivers for the measurement of air emissions from RPP facilities in support of air permitting. These drivers include best management practices; similar analyses may have more than one regulatory driver. This document should not be used for determining overall compliance with regulations because the regulations are in constant change, and this document may not reflect the latest regulatory requirements. Regulatory requirements are also expected to change as various permits are issued. Data needs require samples for both radionuclides and nonradionuclide analytes of …
Date: July 6, 1999
Creator: Mulkey, Charles H.
Object Type: Report
System: The UNT Digital Library
Depth and Thermal Stability of Dry Etch Damage in GaN Schottky Diodes (open access)

Depth and Thermal Stability of Dry Etch Damage in GaN Schottky Diodes

GaN Schottky diodes were exposed to N<sub>2</sub> or H<sub>2</sub> Inductively Coupled Plasmas prior to deposition of the rectifying contact. Subsequent annealing, wet photochemical etching or (NH<sub>4</sub>)<sub>2</sub>S surface passivation treatments were examined for their effect on diode current- voltage characteristics. We found that either annealing at 750 &deg;C under N<sub>2</sub>, or removal of ~500-600 &Aring; of the surface essentially restored the initial I-V characteristics. There was no measurable improvement in the plasma-exposed diode behavior with (NH<sub>4</sub>)<sub>2</sub>S treatments.
Date: July 6, 1999
Creator: Baca, A. G.; Cao, X. A.; Cho, H.; Dang, G. T.; Hickman, R.; Pearton, S. J. et al.
Object Type: Article
System: The UNT Digital Library
Design and performance of the ASAXS instrument at the Advanced Photon Source. (open access)

Design and performance of the ASAXS instrument at the Advanced Photon Source.

The SAXS instrument on the high brilliance undulator beam line (ID-12, BESSRC-CAT) at APS has been designed to produce high-resolution scattering patterns in the millisecond time domain. This instrument is equipped with a 20 cm x 20 cm position sensitive gas detector and a 15 cm x 15 cm high-resolution position sensitive CCD mosaic detector. A photodiode detector mounted on a 3 mm diameter beam stop permits quick alignment of the instrument as well as precise measurement of the transmitted beam intensity. The ease of changing the sample to detector distance and tuning of x-ray energy enables easy access to different Q ranges. With this instrument we routinely measure data in a Q range of 0.001 to 1 {angstrom}{sup {minus}1}. The exposure time with the CCD detector varies from 0.1 second to 10 sec depending on the scattering cross-section of the samples. Techniques to interface ancillary equipment for time-resolved studies and software for faster online analysis of the data have also been developed. We have obtained excellent data on the unfolding of proteins in the millisecond time domain, ASAXS of metallic alloys by using this instrument.
Date: July 6, 1999
Creator: Seifert, S.; Thiyagarajan, P.; Tiede, D. M. & Winans, R. E.
Object Type: Article
System: The UNT Digital Library
Development of Thin-Film Battery Powered Transdermal Medical Devices (open access)

Development of Thin-Film Battery Powered Transdermal Medical Devices

Research carried out at ORNL has led to the development of solid state thin-film rechargeable lithium and lithium-ion batteries. These unique devices can be fabricated in a variety of shapes and to any required size, large or small, on virtually any type of substrate. Because they have high energies per unit of volume and mass and because they are rechargeable, thin-film lithium batteries have potentially many applications as small power supplies in consumer and special electronic products. Initially, the objective of this project was to develop thin-film battery powered products. Initially, the objective of this project was to develop thin-film battery powered transdermal electrodes for recording electrocardiograms and electroencephalograms. These ''active'' electrode would eliminate the effect of interference and improve the reliability in diagnosing heart or brain malfunctions. Work in the second phase of this project was directed at the development of thin-film battery powered implantable defibrillators.
Date: July 6, 1999
Creator: Bates, J.B. & Sein, T.
Object Type: Report
System: The UNT Digital Library
Estimates if population inversion for deep-UV transitions in Kr-like Y,Zr,Nb and Mo in a high-current reflex discharge (open access)

Estimates if population inversion for deep-UV transitions in Kr-like Y,Zr,Nb and Mo in a high-current reflex discharge

Kr-like ions are good candidates for FUV lasing since they can be produced in plasmas quite easily. We present results from a spectroscopic investigation of Y IV emission from a high current density, cold cathode reflex discharge. The Y II to Y V emission is recorded in the 200-3000 {angstrom} range using photometrically calibrated spectrometers, while the emission of trace aluminum ions serves for plasma diagnostics. The intensities of the Y IV 4d - 5p and 5s - 5p transitions strongly increase relative to lines from Y II and Y III with increasing plasma current. The spectra studied here are obtained at a current density of 1.75 A/cm{sup 2}. Experimental Y IV intensity ratios spanning several excited configurations are compared with collisional radiative predictions of the HULLAC atomic physics package. Good agreement is found for the measured and predicted ratios of 4p{sup 5}5p to 4p{sup 5}5s level populations per statistical weight. Finally, the response of the Kr-like system to a fast, transient excitation pulse is examined using the RADEX code. Large transient gains are predicted for several 5s - 5p transitions in Y IV, Zr V, Nb VI and Mo VII.
Date: July 6, 1999
Creator: Finkenthal, M.; May, M. J.; Fournier, K.; Goldstein, W. H.; Shlyaptsev, V. N.; Soukhanovskii, V. et al.
Object Type: Article
System: The UNT Digital Library
Exploring the Role of Shear Stress and Severe Turbulence in Downstream Fish Passage (open access)

Exploring the Role of Shear Stress and Severe Turbulence in Downstream Fish Passage

Fish may be exposed to damaging levels of fluid shear stress and turbulence while passing through hydroelectric power plants. The generally assumed locations for such potential damage are the turbine and draft tube passages, although it is possible that fish are also injured during passage over the spillway or through sluiceways and fish bypass outfalls. Unless mitigated, fluid-induced injuries and mortality could frustrate efforts to develop advanced, fish-friendly turbines or to provide safe alternate downstream passages. The effects of shear stress and turbulence on fish are poorly understood, in part because of the difficulties in conceptualizing these phenomena, determining their magnitudes and distribution within hydroelectric systems, and then recreating them in a controlled laboratory environment. We define the fluid phenomena that are relevant to the assessment of effects on fish. The magnitudes of fluid stresses associated with man-altered aquatic environments are often considerably higher than those found in natural environments (e.g., normal river flows). However, levels of shear stresses that occur during flash floods appear to be comparable to those expected within a turbine. Past studies of the effects of shear stress on fish are of limited value, mainly because of their narrow scope and lack of instrumentation to measure …
Date: July 6, 1999
Creator: Cada, G.; Carlson, T.; Ferguson, J.; Richmond, M. & Sale, M.
Object Type: Article
System: The UNT Digital Library
Federal facilities compliance act waste management (open access)

Federal facilities compliance act waste management

Site Treatment Plans (STPs) developed through the Federal Facilities Compliance Act pose many technical and administrative challenges. Legacy wastes managed under these plans require Land Disposal Restriction (LDR) compliance through treatment and ultimate disposal. Although capacity has been defined for most of the Department of Energy wastes, many waste streams require further characterization and many need additional treatment and handling beyond LDR criteria to be able to dispose of the waste. At Lawrence Livermore National Laboratory (LLNL), the Hazardous Waste Management Division has developed a comprehensive Legacy Waste Program. The program directs work to manage low level and mixed wastes to ensure compliance with nuclear facility rules and its STP. This paper provides a survey of work conducted on these wastes at LLNL. They include commercial waste treatment and disposal, diverse forms of characterization, inventory maintenance and reporting, on-site treatment, and treatability studies. These activities are conducted in an integrated fashion to meet schedules defined in the STP. The processes managing wastes are dynamic due to required integration of administrative, regulatory, and technical concerns spanning the gamut to insure safe proper disposal.
Date: July 6, 1999
Creator: Bowers, J.; Gates-Anderson, D.; Hollister, R. & Painter, S.
Object Type: Article
System: The UNT Digital Library
Final Report: Barium Titanate/Polymer Nanoscale Composites with Controllable Architectures, September 2, 1998 - April 8, 1999 (open access)

Final Report: Barium Titanate/Polymer Nanoscale Composites with Controllable Architectures, September 2, 1998 - April 8, 1999

Final report of Phase I SBIR grant. A study of processing methods for barium titanate/polymer nanocomposites for use in dielectric applications.
Date: July 6, 1999
Creator: Luther, Eric; Slenes, Kirk; Law, Kristen; Labanowski, Christopher & Romero, Thomas
Object Type: Report
System: The UNT Digital Library
Greenhouse-gas emissions from biofuel use in Asia. (open access)

Greenhouse-gas emissions from biofuel use in Asia.

Biomass is a primary fuel for much of the world's population. In some developing countries it can contribute 80-90% of total primary energy consumption. In Asia as a whole we estimate that biomass contributes about 22 EJ, almost 24% of total energy use. Much of this biomass is combusted in inefficient domestic stoves and cookers, enhancing the formation of products of incomplete combustion (PIC), many of which are greenhouse gases. An inventory of the combustion of biofuels (fuelwood, crop residues, and dried animal waste) in Asia is used to develop estimates of the emissions of carbon-containing greenhouse gases (CO{sub 2},CO, CH{sub 4}, and NMHC) in Asian countries. The data are examined from two perspectives: total carbon released and total global warming potential (GWP) of the gases. We estimate that blofuels contributed 573 Tg-C in 1990, about 28% of the total carbon emissions from energy use in Asia. China (259 Tg-C) and India (187 Tg-C) were the largest emitting countries by far. The majority of the emissions, 504 Tg-C, are in the form of CO{sub 2}; however, emissions of non-CO{sub 2} greenhouse gases are significant: 57 Tg-C as CO, 6.4 Tg-C as CH{sub 4}, and 5.9 Tg-C as NMHC. Because of …
Date: July 6, 1999
Creator: Streets, D. G. & Waldhoff, S. T.
Object Type: Article
System: The UNT Digital Library
Hydropower Resource Assessment Modeling Results (open access)

Hydropower Resource Assessment Modeling Results

The U.S. Department of Energy�s Hydropower Program developed the Hydropower Evaluation Software to model the undeveloped hydropower resources in the United States based on environmental, legal, and institutional constraints. This Hydropower Resource Assessment effort has identified 5,677 sites that have an undeveloped total capacity of about 30,000 megawatts. The Hydropower Evaluation Software uses the Federal Energy Regulatory Commission�s Hydroelectric Power Resource Assessment database to identify sites with undeveloped hydropower capacity and the estimated megawatts of undeveloped capacity at each site. The software integrates this information with environmental values from the National Park Service�s National Rivers Inventory database. Other constraints to development that are modeled include Federal and state legislative protection for river segments that have been identified as being wild and scenic river segments. River segments containing threatened and/or endangered wildlife and fish are also modeled for their influence on hydropower development. The amount that each attribute affects the likelihood of development is dependent on the prior development of a site.
Date: July 6, 1999
Creator: Conner, A. M. & Francfort, J. E.
Object Type: Article
System: The UNT Digital Library
Impact of Aluminum on Anticipated Corrosion in a Flooded SNF Multi Canister Overpack (MCO) (open access)

Impact of Aluminum on Anticipated Corrosion in a Flooded SNF Multi Canister Overpack (MCO)

Corrosion reactions in a flooded MCO are examined to determine the impact of aluminum corrosion products (from aluminum basket grids and spacers) on bound water estimates and subsequent fuel/environment reactions during storage. The mass and impact of corrosion products were determined to be insignificant, validating the choice of aluminum as an MCO component and confirming expectations that no changes to the Technical Databook or particulate mass or water content are necessary.
Date: July 6, 1999
Creator: Duncan, D. R.
Object Type: Report
System: The UNT Digital Library
Lessons learned from U.S. Department of Defense 911-Bio Advanced Concept Technology Demonstrations. (open access)

Lessons learned from U.S. Department of Defense 911-Bio Advanced Concept Technology Demonstrations.

The US Department of Defense (DoD), in cooperation with other federal agencies, has taken many initiatives to improve its ability to support civilian response to a domestic biological terrorism incident. This paper discusses one initiative, the 911-Bio Advanced Concept Technology Demonstrations (ACTDs), conducted by the Office of the Secretary of Defense during 1997 to better understand: (1) the capability of newly developed chemical and biological collection and identification technologies in a field environment; (2) the ability of specialized DoD response teams to use these new technologies within the structure of cooperating DoD and civilian consequence management organizations; and (3) the adequacy of current modeling tools for predicting the dispersal of biological hazards. This paper discusses the experience of the ACTDs from the civilian community support perspective. The 911-Bio ACTD project provided a valuable opportunity for DoD and civilian officials to learn how they should use their combined capabilities to manage the aftermath of a domestic biological terrorism incident.
Date: July 6, 1999
Creator: Baldwin, T.; Gasper, W.; Lacher, L.; Newsom, D. & Yantosik, G.
Object Type: Article
System: The UNT Digital Library
MPC and A enhancements for the Murmansk shipping company icebreaker fleet (open access)

MPC and A enhancements for the Murmansk shipping company icebreaker fleet

The United States and the Russian Federation entered into a cooperative agreement in 1994 that resulted in a nuclear weapons non-proliferation program within the United States (US) Department of Energy (DOE) currently known as the Russia/Newly Independent States (NIS) Nuclear Material Security Task Force. In 1996, a project was initiated with the Murmansk Shipping Company to enhance material protection, control, and accounting of highly enriched nuclear fuel assemblies used for the Icebreaker Fleet. The commissioning ceremony for this project is scheduled for August 1999. This paper describes the physical protection, material control, and accounting measures implemented for the Icebreaker Fleet.
Date: July 6, 1999
Creator: Bartoch, O.; Bondarev, N.; Caskey, D.; Forehand, M.; Lambert, D.; Maltsev, V. et al.
Object Type: Article
System: The UNT Digital Library
Optical determination of incipient soot particle concentrations in ethene laminar diffusion flames. (open access)

Optical determination of incipient soot particle concentrations in ethene laminar diffusion flames.

Recent studies in premixed flames have shown the existence of ''transparent particles.'' These particles, 2 nm in size and in high number densities are considered to be a phase transitional between the gas phase PAH species and particulate soot. In the present study, various optical diagnostics were evaluated for measuring the concentration of these particles in situ, Through such evaluations, a technique using extinction at two wavelengths was found to be ideal. While employing such a technique, the volume fractions of these particles in an ethene laminar diffusion flame were measured. Low in the flame, these particles were found to be concentrated in the fuel rich core, while at higher locations, they could be found with appreciable volume fractions even in the soot laden regions. Having given due consideration for the errors due to uncertainties in the optical constants, we report the existence of these particles in an ethene flame with volume fractions comparable to those of soot. Also, similar measurements performed in a low sooting ethene/methanol flame show the concentration of these particles to be of the same order of magnitude as in a pure ethene flame.
Date: July 6, 1999
Creator: Gupta, S. B. & Santoro, R. J.
Object Type: Article
System: The UNT Digital Library
Performance and Economics of a Wind-Diesel Hybrid Energy System: Naval Air Landing Field, San Clemente Island, California (open access)

Performance and Economics of a Wind-Diesel Hybrid Energy System: Naval Air Landing Field, San Clemente Island, California

This report provides an overview of the wind resource, economics and operation of the recently installed wind turbines in conjunction with diesel power for the Naval Air Landing Field (NALF), San Clemente Island (SCI), California Project. The primary goal of the SCI wind power system is to operate with the existing diesel power plant and provide equivalent or better power quality and system reliability than the existing diesel system. The wind system is also intended to reduce, as far as possible, the use of diesel fuel and the inherent generation of nitrogen-oxide emissions and other pollutants. The first two NM 225/30 225kW wind turbines were installed and started shake-down operations on February 5, 1998. This report describes the initial operational data gathered from February 1998 through January 1999, as well as the SCI wind resource and initial cost of energy provided by the wind turbines on SCI. In support of this objective, several years of data on the wind resources of San Clemente Island were collected and compared to historical data. The wind resource data were used as input to economic and feasibility studies for a wind-diesel hybrid installation for SCI.
Date: July 6, 1999
Creator: McKenna, E. (National Renewable Energy Laboratory) & Olsen, T. (Timothy Olsen Consulting)
Object Type: Report
System: The UNT Digital Library
Russian Navy Fresh Fuel MPC and A Training (open access)

Russian Navy Fresh Fuel MPC and A Training

The goal of the Russian Navy Fuels Program is to incorporate nuclear fuel that is in the custody of the Russian Navy into a materials protection, control and accounting program. In addition to applying MPC and A upgrades to existing facilities, a program is underway to train site personnel in MPC and A activities. The goal is to assure that the upgraded facilities are managed, operated and maintained in an effective, sustainable manner. Training includes both the conceptual and necessary operational aspects of the systems and equipment. The project began with a Needs Assessment to identify priorities and objectives of required training. This led to the creation of a series of classes developed by Kurchatov Institute. One course was developed to allow attendees to get a general understanding of goals and objectives of nuclear MPC and A systems in the context of the Russian Navy. A follow-on course provided the detailed skills necessary for the performance of specialized duties. Parallel sessions with hands-on exercises provided the specific training needed for different personnel requirements. The courses were presented at KI facilities in Moscow. This paper reviews the work to date and future plans for this program.
Date: July 6, 1999
Creator: Forehand, Harry M.; O'Shell, Parker; Opanassiouk, Yuri R.; Rexroth, Paul E.; Shmelev, Vladimir & Sukhoruchkin, Vladimir K.
Object Type: Article
System: The UNT Digital Library