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Joint Strike Fighter Acquisition: Observations on the Supplier Base

Description: A letter report issued by the General Accounting Office with an abstract that begins "As the Department of Defense's (DOD) most expensive aircraft program, and its largest international program, the Joint Strike Fighter (JSF) has the potential to significantly affect the worldwide defense industrial base. As currently planned, it will cost an estimated $245 billion for DOD to develop and procure about 2,400 JSF aircraft and related support equipment by 2027. In addition, the program expects int… more
Date: May 3, 2004
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurement of the beam longitudinal profile in a storage ring bynon-linear laser mixing

Description: We report on the development of a new technique for the measurement of the longitudinal beam profile in storage rings. This technique, which has been successfully demonstrated at the Advanced Light Source, mixes the synchrotron radiation with the light from a mode-locked solid state laser oscillator in a non-linear crystal. The up-converted radiation is then detected with a photomultiplier and processed to extract, store, and display the required information. The available choices of laser repe… more
Date: May 3, 2004
Creator: Beche, J.-F.; Byrd, J.; De Santis, S.; Denes, P.; Placidi, M.; Turner, W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

An Analytical Technique to Determine the Potential for Moisture Accumulation in Deactivated Structures

Description: This paper describes an analytical technique developed to predict an order of magnitude volume of moisture accumulation in massive structures after deactivation. This work was done to support deactivation of a Department of Energy nuclear materials processing facility. The structure is a four-story, concrete building with a rectangular footprint that is approximately 250m long by 37m wide by 22m high. Its walls are 1.2m thick. The building will be supplied with unconditioned ventilation air aft… more
Date: May 3, 2004
Creator: MINICHAN, RL
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Erosion Modeling Analysis for SME Tank Cavity

Description: Previous computational work to evaluate erosion in the DWPF Slurry Mix Evaporator vessel has been extended to address the potential for the erosion to accelerate because of changes to the tank bottom profile. The same erosion mechanism identified in the previous work, abrasive erosion driven by high wall shear stress, was applied to the current evaluation. The current work extends the previous analysis by incorporating the observed changes to the tank bottom and coil support structure in the vi… more
Date: May 3, 2004
Creator: LEE, SI
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of an abort gap monitor for high-energy proton rings

Description: The fill pattern in proton synchrotrons usually features an empty gap, longer than the abort kicker raise time, for machine protection. This gap is referred to as the ''abort gap'' and any particles, which may accumulate in it due to injection errors and diffusion between RF buckets, would be lost inside the ring, rather than in the beam dump, during the kicker firing. In large proton rings, due to the high energies involved, it is vital to monitor the build up of charges in the abort gap with … more
Date: May 3, 2004
Creator: Beche, Jean-Francois; Byrd, John; De Santis, Stefano; Denes, Peter; Placidi, Massimo; Turner, William et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Simple beam line for the MuCool test area

Description: This note describes a simple beam line to transport H{sup -} beam from the end of the Fermilab 400 MeV Linac to the MuCool Test Area (MTA). The design uses existing dipoles and quadrupoles and other equipment now available at Fermilab. Deflection of single 15 Hz beam pulses from the Linac to the MTA is accomplished using pulsed magnets that are essentially Main Injector trim dipoles with thinner laminations. The beam size is kept small to control beam losses and allow the use of existing surplu… more
Date: May 3, 2004
Creator: al., Charles Ankenbrandt et
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Assessment of the Sulfate Solubility Limit for the FRIT 418 - Sludge Batch 2/3 System

Description: The objective of this report is to establish a ''single point'' sulfate solubility limit or constraint for the Frit 418 - Sludge Batch 2/3 (SB2/3) system. Based on the results of this study, it is recommended that the glass limit in the Product Composition Control System (PCCS) for the Frit 418 - SB2/3 system be set at 0.60 wt%. The new limit has been set based solely on sealed crucible scale data and does not take credit or account for potential volatilization that may occur in the Defense Was… more
Date: May 3, 2004
Creator: PEELER, D.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Erosion Modeling Analysis For DWPF MFT/SME Tanks

Description: This report presents the application of computational fluid dynamics (CFD) methods to qualitative estimate of the erosion phenomena expected in the actual Slurry Mixer Evaporator (SME) and MFT (Melter Feed Tank) process facilities by calculating erosion drivers. Using the transport equations governing the slurry flow, two erosion mechanisms were considered to evaluate high erosion sites and to investigate the primary cause of erosion damage for the modeling domain representative of the actual m… more
Date: May 3, 2004
Creator: LEE, SI
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Erosion Modeling Analysis For Modified DWPF SME Tank

Description: In support of an erosion evaluation for the modified cooling coil guide and its supporting structure in the DWPF SME vessel, a computational model was developed to identify potential sites of high erosion using the same methodology established by previous work. The erosion mechanism identified in the previous work was applied to the evaluation of high erosion locations representative of the actual flow process in the modified coil guide of the SME vessel, abrasive erosion which occurs by high w… more
Date: May 3, 2004
Creator: LEE, SI
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Overview of the Yucca Mountain Licensing Process

Description: This paper presents an overview of the licensing process for a Yucca Mountain repository for high-level radioactive waste and spent nuclear fuel. The paper discusses the steps in the licensing proceeding, the roles of the participants, the licensing and hearing requirements contained in the Code of Federal Regulations. A description of the Nuclear Regulatory Commission (NRC) staff acceptance and compliance reviews of the Department of Energy (DOE) application for a construction authorization an… more
Date: May 3, 2004
Creator: Wisenburg, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

MCNP ESTIMATE OF THE SAMPLED VOLUME IN A NON-DESTRUCTIVE IN SITU SOIL CARBON ANALYSIS.

Description: Global warming, promoted by anthropogenic CO{sub 2} emission into the atmosphere, is partially mitigated by the photosynthesis processes of the terrestrial echo systems that act as atmospheric CO{sub 2} scrubbers and sequester carbon in soil. Switching from till to no till soils management practices in agriculture further augments this process. Carbon sequestration is also advanced by putting forward a carbon ''credit'' system whereby these can be traded between CO{sub 2} producers and sequeste… more
Date: May 3, 2004
Creator: WIELOPOLSKI, L.; DIOSZEGI, I. & MITRA, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Measuring the ionization balance of gold in a low-density plasma of importance to ICF

Description: Charge state distributions (CSDs) have been determined in low density ({approx}10 {sup 12} cm{sup -3}) gold plasmas having either a monoenergetic beam (E{sub Beam} = 2.66, 3.53 and 4.54 keV) or experimentally simulated thermal electron distributions (T{sub e} = 2.0, 2.5 and 3.0 keV). These plasmas were created in the Livermore electron beam ion traps EBIT-I and EBIT-II. Line emission and radiative recombination features of Ni to Kr-like gold ions were recorded in the x-ray region with a crystal… more
Date: May 3, 2004
Creator: May, M.; Beiersdorfer, P.; Schneider, M.; Terracol, S.; Wong, K.; Fournier, K. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Simulation of Climate Forcing by Aerosols

Description: The largest source of uncertainty in estimates of the radiative forcing governing climate change is in the radiative forcing due to anthropogenic aerosols. Current estimates of the global mean of the aerosol radiative forcing range from –0.3 to –3.0 watts per square meter (Wm-2 ) which is opposite in sign and possibly comparable in magnitude to the +2 Wm-2 forcing due to increasing greenhouse gases. We have developed a global aerosol and climate modeling system that provides arguably the most d… more
Date: May 3, 2004
Creator: Ghan, Steven J.; Bian, Xindi; Chapman, Elaine G.; Easter, Richard C.; Fann, George I.; Kothari, Suraj C. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermophysical Properties of Fluids and Fluid Mixtures

Description: The major goal of the project was to study the effect of critical fluctuations on the thermophysical properties and phase behavior of fluids and fluid mixtures. Long-range fluctuations appear because of the presence of critical phase transitions. A global theory of critical fluctuations was developed and applied to represent thermodynamic properties and transport properties of molecular fluids and fluid mixtures. In the second phase of the project, the theory was extended to deal with critical … more
Date: May 3, 2004
Creator: Sengers, Jan V. & Anisimov, Mikhail A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Differential Soil Impedance Obstacle Detection Quarterly Report

Description: This project develops a new and unique obstacle detection sensor for horizontal directional drilling (HDD) equipment. The development of this new technology will greatly improve the reliability and safety of natural gas HDD construction practices. This sensor utilizes a differential soil impedance measurement technique that will be sensitive to the presence of plastic and ceramic, as well as metallic obstacles. The use of HDD equipment has risen significantly in the gas industry because HDD pro… more
Date: May 3, 2004
Creator: Kieba, Maximillian J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Calculation of Np-237 and Am-241 Detector Calibration Constants from First Principles

Description: The Analytical Development Section of Savannah River Technology Center (SRTC) was requested to determine the holdup of enriched uranium in a facility as part of an overall deactivation project of the facility. The facility was used to fabricate enriched uranium fuel assemblies, lithium-aluminum target tubes, neptunium assemblies, and miscellaneous components for the production reactors. The results of the holdup assays are essential for determining compliance with the Waste Acceptance Criteria,… more
Date: May 3, 2004
Creator: Dewberry, R. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Leak Path Factor Evaluation: A MELCOR Application for Nonreactor Nuclear Facilities

Description: This paper presents a Leak Path Factor (LPF) analysis for a postulated fire accident on a building containing plutonium powder when the resulting outside release is partly through the ventilation/filtration system and partly through other pathways such as building access doorways. When analyzing an accident scenario involving the release of radioactive powders inside a building, various pathways for the release to the outside environment can exist. This study is presented to show how the multip… more
Date: May 3, 2004
Creator: Polizzi, L. Mario
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Corrective Action Investigation Plan for Corrective Action Unit 543: Liquid Disposal Units, Nevada Test Site, Nevada: Revision 0

Description: The general purpose of this Corrective Action Investigation Plan is to ensure that adequate data are collected to provide sufficient and reliable information to identify, evaluate, and select technically viable corrective action alternatives (CAAs) for Corrective Action Unit (CAU) 543: Liquid Disposal Units, Nevada Test Site (NTS), Nevada. Located in Areas 6 and 15 on the NTS, CAU 543 is comprised of a total of seven corrective action sites (CASs), one in Area 6 and six in Area 15. The CAS in A… more
Date: May 3, 2004
Creator: United States. National Nuclear Security Administration. Nevada Site Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Data Mining: An Overview

Description: Data mining is emerging as one of the key features of many homeland security initiatives. Often used as a means for detecting fraud, assessing risk, and product retailing, data mining involves the use of data analysis tools to discover previously unknown, valid patterns and relationships in large data sets. This report discusses the data mining uses (i.e. Terrorism Information Awareness (TIA) Program) and issues (i.e. data quality, interoperability, privacy), as well as the limitations of data … more
Date: May 3, 2004
Creator: Seifert, Jeffrey W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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