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Comparison of Climate Change Adaptation Provisions in S. 1733 and H.R. 2454

Description: This report summarizes and compares climate change adaptation-related provisions in the American Clean Energy and Security Act of 2009 (H.R. 2454) and the Clean Energy, Jobs, and Power Act (S. 1733). Both H.R. 2454 and S. 1733 include adaptation provisions that seek to better assess the impacts of climate change and variability that are occurring now and in the future; and support adaptation activities related to climate change, both domestically and internationally.
Date: November 12, 2009
Creator: Ho, Melissa D.

Critical Infrastructures: Background, Policy, and Implementation

Description: This report discusses in more detail the evolution of a national critical infrastructure policy and the institutional structures established to implement it. The report highlights five issues of Congressional concern: identifying critical assets; assessing vulnerabilities and risks; allocating resources; information sharing; and regulation.
Date: November 12, 2009
Creator: Moteff, John D.

Defense Acquisitions: Strategic Airlift Gap Has Been Addressed, but Tactical Airlift Plans Are Evolving as Key Issues Have Not Been Resolved

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Department of Defense (DOD) used nearly 700 aircraft, as well as commercial and leased aircraft, to carry about 3 million troops and 800,000 tons of cargo in support of wartime, peacetime, and humanitarian efforts in 2008. C-5s and C-17s move troops and cargo internationally (strategic airlift) and C-130s are the primary aircraft that moves them within a theater of operation (tactical airlift). Over the next 4 years, DOD plans to spend about $12 billion to modernize and procure airlifters and is currently studying how many it needs. The Government Accountability Office (GAO) was asked to (1) identify the status of DOD's modernization and acquisition efforts and (2) determine how well DOD is addressing any capability gaps and redundancies. In conducting this work, GAO identified the cost, schedule, and performance of airlift programs, as well as DOD's plan for addressing gaps and redundancies. GAO also discussed mobility study efforts with DOD, Institute for Defense Analysis (IDA), and RAND Coporation officials."
Date: November 12, 2009
Creator: United States. Government Accountability Office.

Design of a New Optical System for Alcator C-Mod Motional Stark Effect Diagnostic

Description: The motional Stark effect (MSE) diagnostic on Alcator C-Mod uses an in-vessel optical system (five lenses and three mirrors) to relay polarized light to an external polarimeter because port access limitations on Alcator C-Mod preclude a direct view of the diagnostic beam. The system experiences unacceptable, spurious drifts of order several degrees in measured pitch angle over the course of a run day. Recent experiments illuminated the MSE diagnostic with polarized light of fixed orientation as heat was applied to various optical elements. A large change in measured angle was observed as two particular lenses were heated, indicating that thermal-stress-induced birefringence is a likely cause of the spurious variability. Several new optical designs have been evaluated to eliminate the affected in-vessel lenses and to replace the focusing they provide with curved mirrors; however, ray tracing calculations imply that this method is not feasible. A new approach is under consideration that utilizes in situ calibrations with in-vessel reference polarized light sources. 2008 American Institute of Physics.
Date: November 12, 2009
Creator: Jinseok Ko, Steve Scott, Manfred Bitter, and Scott Lerner

Experimental basis for laser-plasma interactions in ignition hohlraums at the National Ignition Facility

Description: A series of laser plasma interaction experiments at OMEGA (LLE, Rochester) using gas-filled hohlraums shed light on the behavior of stimulated Raman scattering and stimulated Brillouin scattering at various plasma conditions encountered in indirect drive ignition designs. We present detailed experimental results that quantify the density, temperature, and intensity thresholds for both of these instabilities. In addition to controlling plasma parameters, the National Ignition Campaign relies on optical beam smoothing techniques to mitigate backscatter. We show that polarization smoothing is effective at controlling backscatter. These results provide an experimental basis for forthcoming experiments on National Ignition Facility.
Date: November 12, 2009
Creator: Froula, D H; Divol, L; London, R A; Berger, R L; Doeppner, T; Meezan, N B et al.

Final Report - "UCM-Grid Service for User-Centric Monitoring"

Description: The User Centric Monitoring (UCM) project was aimed at developing a toolkit that provides the Virtual Organization (VO) with tools to build systems that serve a rich set of intuitive job and application monitoring information to the VO's scientists so that they can be more productive. The tools help collect and serve the status and error information through a Web interface. The proposed UCM toolkit is composed of a set of library functions, a database schema, and a Web portal that will collect and filter available job monitoring information from various resources and present it to users in a user-centric view rather than and administrative-centric point of view.
Date: November 12, 2009
Creator: Alexander, David A

HANFORD SITE LOW EXPOSURE PIPELINE REPAIR USING A NON-METALLIC COMPOSITE SYSTEM

Description: At the Department of Energy, Richland Operations (DOE-RL) Hanford site in eastern Washington, a 350 mm (14 inch) diameter high density polyethylene (HDPE) pump recirculation pipeline failed at a bonded joint adjacent to a radiologically and chemically contaminated groundwater storage basin. The responsible DOE-RL contractor, CH2MHill Plateau Remediation Company, applied a fiberglass reinforced plastic (composite) field repair system to the failed joint. The system was devised specifically for the HDPE pipe repair at the Hanford site, and had not been used on this type of plastic piping previously. This paper introduces the pipe failure scenario, describes the options considered for repair and discusses the ultimate resolution of the problem. The failed pipeline was successfully returned to service with minimal impact on waste water treatment plant operating capacity. Additionally, radiological and chemical exposures to facility personnel were maintained as low as reasonably achievable (ALARA). The repair is considered a success for the near term, and future monitoring will prove whether the repair can be considered for long term service and as a viable alternative for similar piping failures at the Hanford site.
Date: November 12, 2009
Creator: Huth, R. J.

An Innovative Three-Dimensional Heterogeneous Coarse-Mesh Transport Method for Advanced and Generation IV Reactor Core Analysis and Design

Description: This project has resulted in a highly efficient method that has been shown to provide accurate solutions to a variety of 2D and 3D reactor problems. The goal of this project was to develop (1) an accurate and efficient three-dimensional whole-core neutronics method with the following features: based sollely on transport theory, does not require the use of cross-section homogenization, contains a highly accurate and self-consistent global flux reconstruction procedure, and is applicable to large, heterogeneous reactor models, and to (2) create new numerical benchmark problems for code cross-comparison.
Date: November 12, 2009
Creator: Rahnema, Farzad

International Monetary Fund: Lending Programs Allow for Negotiations and Are Consistent with Economic Literature

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The International Monetary Fund (IMF) has significantly increased its total committed lending to countries from about $3.5 billion in August 2008 to about $170.4 billion in August 2009, as countries have been severely affected by the global economic crisis. IMF-supported programs are intended to help countries overcome balance-of-payments problems, stabilize their economies, and restore sustainable economic growth. Critics have long-standing concerns that the IMF has an overly austere approach to macroeconomic policy that does not sufficiently heed country viewpoints. To help address these concerns, the IMF recently stated that it has changed its policies, including by increasing its flexibility. GAO was asked to examine (1) the process for designing an IMF-supported program, (2) the IMF-supported programs in four recipient countries, and (3) the extent to which the findings of empirical economic studies are consistent with the IMF's macroeconomic policies. GAO analyzed IMF and recipient country documents; interviewed U.S., IMF, and foreign government officials, conducting fieldwork in four relatively large recipient countries; and analyzed published or widely cited empirical studies. GAO received written comments from the Department of the Treasury, noting its concurrence with the report's conclusions."
Date: November 12, 2009
Creator: United States. Government Accountability Office.

Iran's Nuclear Program: Status

Description: This report looks at the background of Iran's nuclear policy. It covers the current status of Iran's nuclear facilities, and current controversy surrounding them, as well as the effects of international sanctions on Iran, recent sabotages on the Iran Enrichment Program, an estimated timeline of Iran's nuclear weapon capabilities, and whether or not Iran even has a nuclear weapons program.
Date: November 12, 2009
Creator: Kerr, Paul K.

Lithium Loaded Glass Fiber Neutron Detector Tests

Description: Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world and, thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. Reported here are the results of tests of the lithium-loaded glass fibers option. This testing measured the neutron detection efficiency and gamma ray rejection capabilities of a small system manufactured by Nucsafe (Oak Ridge, TN).
Date: November 12, 2009
Creator: Ely, James H.; Erikson, Luke E.; Kouzes, Richard T.; Lintereur, Azaree T. & Stromswold, David C.

Recent Advances in VisIt: AMR Streamlines and Query-Driven Visualization

Description: Adaptive Mesh Refinement (AMR) is a highly effective method for simulations spanning a large range of spatiotemporal scales such as those encountered in astrophysical simulations. Combining research in novel AMR visualization algorithms and basic infrastructure work, the Department of Energy's (DOEs) Science Discovery through Advanced Computing (SciDAC) Visualization and Analytics Center for Enabling Technologies (VACET) has extended VisIt, an open source visualization tool that can handle AMR data without converting it to alternate representations. This paper focuses on two recent advances in the development of VisIt. First, we have developed streamline computation methods that properly handle multi-domain data sets and utilize effectively multiple processors on parallel machines. Furthermore, we are working on streamline calculation methods that consider an AMR hierarchy and detect transitions from a lower resolution patch into a finer patch and improve interpolation at level boundaries. Second, we focus on visualization of large-scale particle data sets. By integrating the DOE Scientific Data Management (SDM) Center's FastBit indexing technology into VisIt, we are able to reduce particle counts effectively by thresholding and by loading only those particles from disk that satisfy the thresholding criteria. Furthermore, using FastBit it becomes possible to compute parallel coordinate views efficiently, thus facilitating interactive data exploration of massive particle data sets.
Date: November 12, 2009
Creator: Weber, Gunther; Ahern, Sean; Bethel, Wes; Borovikov, Sergey; Childs, Hank; Deines, Eduard et al.

REVIEW OF PLUTONIUM OXIDATION LITERATURE

Description: A brief review of plutonium oxidation literature was conducted. The purpose of the review was to ascertain the effect of oxidation conditions on oxide morphology to support the design and operation of the PDCF direct metal oxidation (DMO) furnace. The interest in the review was due to a new furnace design that resulted in oxide characteristics that are different than those of the original furnace. Very little of the published literature is directly relevant to the DMO furnace operation, which makes assimilation of the literature data with operating conditions and data a convoluted task. The oxidation behavior can be distilled into three regimes, a low temperature regime (RT to 350 C) with a relatively slow oxidation rate that is influenced by moisture, a moderate temperature regime (350-450 C) that is temperature dependent and relies on more or less conventional oxidation growth of a partially protective oxide scale, and high temperature oxidation (> 500 C) where the metal autocatalytically combusts and oxidizes. The particle sizes obtained from these three regimes vary with the finest being from the lowest temperature. It is surmised that the slow growth rate permits significant stress levels to be achieved that help break up the oxides. The intermediate temperatures result in a fairly compact scale that is partially protective and that grows to critical thickness prior to fracturing. The growth rate in this regime may be parabolic or paralinear, depending on the oxidation time and consequently the oxide thickness. The high temperature oxidation is invariant in quiescent or nearly quiescent conditions due to gas blanketing while it accelerates with temperature under flowing conditions. The oxide morphology will generally consist of fine particles (<15 {micro}m), moderately sized particles (15 < x < 250 {micro}m) and large particles (> 250 {micro}m). The particle size ratio is expected to be ...
Date: November 12, 2009
Creator: Korinko, P.

Risk of Low Dose/Low Dose Rate Ionizing Radiation to Humans Symposium at the EMS 2009 Annual Meeting - September 2006

Description: The low dose symposium thoughtfully addressed controversy of risk from low dose radiation exposure, hormesis and radon therapy. The stem cell symposium cogently considered the role of DNA damage and repair in hematopoietic stem cells underlying aging and malignancy and provocatively presented evidence that stem cells may have distinct morphologies and replicative properties, as well as special roles in cancer initiation. In the epigenetics symposium, studies illustrated the long range interaction of epigenetic mechanisms, the roles of CTCF and BORIS in region/specific regulation of epigenetic processes, the impact of DNA damage on epigenetic processes as well as links between epigenetic mechanisms and early nutrition and bystander effects.
Date: November 12, 2009
Creator: Morgan, William F.; von Borstel, Robert C.; Brenner, David; Redpath, J. Leslie; Erickson, Barbra E. & Brooks, Antone L.

State Department: Diplomatic Security's Recent Growth Warrants Strategic Review

Description: A letter report issued by the Government Accountability Office with an abstract that begins "State Department's (State) Bureau of Diplomatic Security (Diplomatic Security) is responsible for the protection of people, information, and property at over 400 foreign missions and domestic locations. Diplomatic Security must be prepared to counter threats such as crime, espionage, visa and passport fraud, technological intrusions, political violence, and terrorism. The Government Accountability Office (GAO) was asked to assess (1) how Diplomatic Security's mission has evolved since 1998, (2) how its resources have changed over the last 10 years, and (3) the challenges it faces in conducting its missions. GAO analyzed Diplomatic Security data; reviewed relevant documents; and interviewed officials at several domestic facilities and 18 international missions."
Date: November 12, 2009
Creator: United States. Government Accountability Office.

Synthesis of High-Purity alpha-and beta-PbO and Possible Applications to Synthesis and Processing of Other Lead Oxide Materials

Description: The red, tetragonal form of lead oxide, alpha-PbO, litharge, and the yellow, orthorhombic form, beta-PbO, massicot, have been synthesized from lead(II) salts in aqueous media at elevated temperature. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were used to characterize the size, morphology, and crystallographic structural forms of the products. The role of impurities in the experimental synthesis of the materials and microstructural variations in the final products are described, and the implications of these observations with respect to the synthesis of different conducting lead oxides and other related materials are discussed.
Date: November 12, 2009
Creator: Perry, Dale L. & Wilkinson, T. J.

Excited Spectator Electron Effects on Spectral Line Shapes

Description: Excited spectator electron effects on Stark broadened spectral line shapes of transitions involving tightly bound electrons are investigated. It is shown that the interference terms in the electron impact broadening are essential to describe the overlapping lines generated by these configurations (e.g.; dielectronic satellite lines). The main impact is narrower spectral features and reduced far wing intensities compared to calculations neglecting the interference terms.
Date: October 12, 2009
Creator: Iglesias, C A

High-Energy Physics Outstanding Junior Investigating Program

Description: Throughout the past five years I have worked to uncover what physics lies beyond that of the standard model. My main focus in the first two and a half years has been to understand physics at the electroweak scale, and to a lesser extent understand the relationship between particle physics and cosmology. My final two and a half years was spent on studying the feasibility of discovering “non-standard” models of electroweak physics at hadron colliders, working in close contact with experimentalists at the Tevatron and the LHC. My biggest successes during this period has been both in electroweak physics – expanding our understanding of the Higgs sector in supersymmetric theories and ultraviolet completions of little Higgs theories – and in collider physics – discovering a method for identifying high momentum top quarks and realizing the potential for LHCb to discover some versions of supersymmetry. I have also made some progress towards a particle physics/effective field theory solution of the cosmological constant problem.
Date: October 12, 2009
Creator: Kaplan, David, E.