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Coast Guard: Non-Homeland Security Performance Measures Are Generally Sound, but Opportunities for Improvement Exist

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Using performance measures, the Coast Guard explains how well its programs are performing. To do so, it reports one "primary" measure for each program (such as percent of mariners rescued) and maintains data on other, "secondary" measures (such as percent of property saved). Concerns have been raised about whether measures for non-homeland security programs accurately reflect performance, that is, they … more
Date: August 16, 2006
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Shape Memory Polymer Dialysis Needle Adapter for the Reduction of Hemodynamic Stress within Arteriovenous Grafts

Description: A deployable, shape memory polymer adapter is investigated for reducing the hemodynamic stress caused by a dialysis needle flow within an arteriovenous graft. Computational fluid dynamics simulations of dialysis sessions with and without the adapter demonstrate that the adapter provides a significant decrease in the wall shear stress. In vitro flow visualization measurements are made within a graft model following delivery and actuation of a prototype shape memory polymer adapter. Vascular acce… more
Date: August 16, 2006
Creator: Ortega, J M; Small, W; Wilson, T S; Benett, W; Loge, J & Maitland, D J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Joint Urban 2003: Study Overview And Instrument Locations

Description: Quality-assured meteorological and tracer data sets are vital for establishing confidence that indoor and outdoor dispersion models used to simulate dispersal of potential toxic agents in urban atmospheres are giving trustworthy results. The U.S. Department of Defense-Defense Threat Reduction Agency and the U.S. Department of Homeland Security joined together to conduct the Joint Urban 2003 atmospheric dispersion study to provide this critically-needed high-resolution dispersion data. This majo… more
Date: August 16, 2006
Creator: Allwine, K Jerry & Flaherty, Julia E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Verification of High Temperature Free Atom Thermal Scattering in MERCURY Compared to TART

Description: This is part of a series of reports verifying the accuracy of the relatively new MERCURY [1] Monte Carlo particle transport code by comparing its results to those of the older TART [2] Monte Carlo particle transport code. In the future we hope to extend these comparisons to include deterministic (Sn) codes [3]. Here we verify the accuracy of the free atom thermal scattering model [4] by using it over a very large temperature range. We would like to be able to use these Monte Carlo codes for ast… more
Date: August 16, 2006
Creator: Cullen, D E; McKinley, S & Hagmann, C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electron Cloud Measurements in Heavy-Ion Driver for HEDP and Inertial Fusion Energy

Description: The High Current Experiment (HCX) at LBNL is a driver scale single beam injector that provides a 1 MeV K+ ion beam current of 0.18 A for 5 {micro}s. It transports high-current beams with large fill factor (ratio of the maximum beam envelope radius to the beam pipe radius) and low emittance growth that are required to keep the cost of the power plant competitive and to satisfy the target requirements of focusing ion beams to high-power density. Beam interaction with the background gas and walls … more
Date: August 16, 2006
Creator: Covo, M K; Molvik, A W; Friedman, A; Cohen, R; Vay, J; Bieniosek, F et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Multilayer High-Gradient Insulators

Description: Multilayer High-Gradient Insulators are vacuum insulating structures composed of thin, alternating layers of dielectric and metal. They are currently being developed for application to high-current accelerators and related pulsed power systems. This paper describes some of the High-Gradient Insulator research currently being conducted at Lawrence Livermore National Laboratory.
Date: August 16, 2006
Creator: Harris, J R
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Measurement of the B0 -> Lambda-bar p pi Branching Fraction andStudy of the Decay Dynamics

Description: We present a measurement of the B{sup 0} {center_dot} {bar {Lambda}}p{pi}{sup -} branching fraction performed using the BABAR detector at the PEP-II asymmetric energy e{sup +}e{sup -} collider. Based on a 232 million B{bar B} pairs data sample we measure: {center_dot} (B{sup 0} {center_dot} {bar {Lambda}}p{pi}{sup -}) = [3.30 {center_dot} 0.53(stat.) {center_dot} 0.31 (syst.)] {center_dot} 10{sup -6}. A measurement of the differential spectrum as a function of the di-baryon invariant mass m({La… more
Date: August 16, 2006
Creator: Bondioli, M
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

SCENARIOS EVALUATION TOOL FOR CHLORINATED SOLVENT MNA

Description: Over the past three decades, much progress has been made in the remediation of chlorinated solvents from the subsurface. Yet these pervasive contaminants continue to present a significant challenge to the U.S. Department of Energy (DOE), other federal agencies, and other public and private organizations. The physical and chemical properties of chlorinated solvents make it difficult to rapidly reach the low concentrations typically set as regulatory limits. These technical challenges often resul… more
Date: August 16, 2006
Creator: Vangelas, K; Brian02 Looney, B; Truex, Michael J. & Newell, Charles J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis and Interpretation of Hard X-ray Emission from the Bullet Cluster (1E0657-56), the Most Distant Cluster of Galaxies Observed by RXTE

Description: Evidence for non-thermal activity in clusters of galaxies is well established from radio observations of synchrotron emission by relativistic electrons. New windows in the Extreme Ultraviolet and Hard X-ray ranges have provided for more powerful tools for the investigation of this phenomenon. Detection of hard X-rays in the 20 to 100 keV range have been reported from several clusters of galaxies, notably from Coma and others. Based on these earlier observations we identified the relatively high… more
Date: August 16, 2006
Creator: Petrosian, Vahe; Madejski, Greg & Luli, Kevin
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Radiological Environmental Protection for PEP-II Ring High Luminosity Operation

Description: Stanford Linear Accelerator Center (SLAC) is located in northern California, USA. Radiological environmental protection is one of the main elements of the radiation protection program. One of SLAC's accelerator facilities is B-Factory, whose PEP-II accelerator ring has been operating since 1997 and is being upgraded to higher luminosity operation. Four radiological issues associated with high luminosity operation up to CY2008 are re-evaluated: (1) annual doses in IR halls, (2) annual skyshine d… more
Date: August 16, 2006
Creator: Liu, James C. & Nakao, Noriaki
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Neutron induced inelastic cross sections of 150Sm for En = 1 to 35 MeV

Description: Cross-section measurements were made of prompt gamma-ray production as a function of incident neutron energy (E{sub n} = 1 to 35 MeV) on an enriched (95.6%) {sup 150}Sm sample. Energetic neutrons were delivered by the Los Alamos National Laboratory spallation neutron source located at the Los Alamos Neutron Science Center (LANSCE) facility. The prompt-reaction gamma rays were detected with the large-scale Compton-suppressed Germanium Array for Neutron Induced Excitations (GEANIE). Neutron energ… more
Date: August 16, 2006
Creator: Dashdorj, D.; Mitchell, G. E.; Kawano, T.; Becker, J. A.; Agvaanluvsan, U.; Chadwick, M. B. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Observation of B+ -> K0bar K+ and B0 -> K0 K0bar

Description: The authors report observations of the b {yields} d penguin-dominated decays B{sup +} {yields} {bar K}{sup 0}K{sup +} and B{sup 0} {yields} K{sup 0}{bar K}{sup 0} in approximately 350 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector. They measure the branching fractions {Beta}(B{sup +} {yields} {bar K}{sup 0}K{sup +}) = (1.61 {+-} 0.44 {+-} 0.09) x 10{sup -6} and {Beta}(B{sup 0} {yields} K{sup 0}{bar K}{sup 0}) = (1.08 {+-} 0.28 {+-} 0.11) x 10{sup -6}, and the C… more
Date: August 16, 2006
Creator: Aubert, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Final Technical Report

Description: This document presents an annual report on our long-term R&D grant for development of new technology for future colliders. The organizing theme of our development is to develop a compact high-field collider dipole, utilizing wind-and-react Nb3Sn coil fabrication, stress man-agement, conductor optimization, bladder preload, and flux plate suppression of magnetization multipoles . The development trail for this new technology began over four years ago with the successful testing of TAMU12, a NbTi… more
Date: August 16, 2006
Creator: McIntyre, Peter
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal Photon and Residual Gas Scattering of the Electrons in the ILC RTML

Description: The scattering of the primary beam electrons off of thermal photons and residual gas molecules in the projected International Linear Collider (ILC) is a potential source of beam haloes which must be collimated downstream of the linac. In this report we give the analytic estimations of the individual input that each of the main scattering processes makes in the production of off-energy and large amplitude particles in the Damping Ring to Main Linac region (RTML).
Date: August 16, 2006
Creator: Seletskiy, S. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Implementation of Double-Waist Chicane Optics in SPEAR3

Description: The SPEAR3 accelerator upgrade opened up two 7.6m racetrack straights in the magnet lattice. In one of these straights, we recently added a magnetic chicane to separate two insertion device (ID) beam lines by 10mrad. A quadrupole triplet in the center creates a ''double focus'' optics with {beta}y = 1.6m at the middle of each ID, hence the term ''double-waist chicane''. The new optics also reduced {beta}y in the four matching straights adjacent to the racetrack straights to 2.5m. In this paper,… more
Date: August 16, 2006
Creator: Corbett, J.; Cornacchia, M.; Dao, T.; Dell'Orco, D.; Rafael, F.; Harrington, D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Transportation System Concept of Operations

Description: The Nuclear Waste Policy Act of 1982 (NWPA), as amended, authorized the DOE to develop and manage a Federal system for the disposal of SNF and HLW. OCRWM was created to manage acceptance and disposal of SNF and HLW in a manner that protects public health, safety, and the environment; enhances national and energy security; and merits public confidence. This responsibility includes managing the transportation of SNF and HLW from origin sites to the Repository for disposal. The Transportation Syst… more
Date: August 16, 2006
Creator: Slater-Thompson, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Active Detection of Small Quantities of Shielded Highly-Enriched Uranium Using Low-Dose 60-keV Neutron Interrogation

Description: Active interrogation with low-energy neutrons provides a search technique for shielded highly-enriched uranium. We describe the technique and show initial results using a low-dose 60 keV neutron beam. This technique produces a clear induced fission signal in the presence of small quantities of {sup 235}U. The technique has been validated with low-Z and high-Z shielding materials. The technique uses a forward-directed beam of 60 keV neutrons to induce fission in {sup 235}U. The induced fission p… more
Date: August 16, 2006
Creator: Kerr, P.; Rowland, M.; Dietrich, D.; Stoeffl, W.; Wheeler, B.; Nakae, L. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Federal and State Quarantine and Isolation Authority

Description: This report provides an overview of federal and state public health laws as they relate to the quarantine and isolation of individuals, a discussion of constitutional issues that may be raised should individual liberties be restricted in a quarantine situation, and federalism questions that may arise where federal and state authorities overlap. In addition, the possible role of the armed forces in enforcing public health measures is discussed, specifically whether the Posse Comitatus Act would … more
Date: August 16, 2006
Creator: Swendiman, Kathleen S. & Elsea, Jennifer K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nuclear Weapons: Comprehensive Test Ban Treaty

Description: A comprehensive test ban treaty, or CTBT, is the oldest item on the nuclear arms control agenda. Three treaties currently limit testing to underground only, with a maximum force equal to 150,000 tons of TNT. This report outlines the CTBT and related legislation.
Date: August 16, 2006
Creator: Medalia, Jonathan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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