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Edge Turbulence Velocity Changes with Lithium Coating on NSTX

Description: Lithium coating improves energy confinement and eliminates edge localized modes in NSTX, but the mechanism of this improvement is not yet well understood. We used the gas-puff-imaging (GPI) diagnostic on NSTX to measure the changes in edge turbulence which occurred during a scan with variable lithium wall coating, in order to help understand the reason for the confinement improvement with lithium. There was a small increase in the edge turbulence poloidal velocity and a decrease in the poloidal… more
Date: August 10, 2012
Creator: A. Cao, S.J. Zweben, D.P. Stotler, M. Bell, A. Diallo, S.M. Kaye and B. LeBlanc
Item Type: Refine your search to only Report
open access

Potential for luminosity improvement for low-energy RHIC operation with long bunches

Description: Electron cooling was proposed to increase luminosity of the RHIC collider for heavy ion beams at low energies. Luminosity decreases as the square of bunch intensity due to the beam loss from the RF bucket as a result of the longitudinal intra beam scattering (IBS), as well as due to the transverse emittance growth because of the transverse IBS. Both transverse and longitudinal IBS can be counteracted with electron cooling. This would allow one to keep the initial peak luminosity close to consta… more
Date: February 10, 2012
Creator: A., Fedotov; Blaskiewicz&#44 & M.
Item Type: Refine your search to only Report
open access

LITERATURE REVIEW ON IMPACT OF GLYCOLATE ON THE 2H EVAPORATOR AND THE EFFLUENT TREATMENT FACILITY

Description: Glycolic acid (GA) is being studied as an alternate reductant in the Defense Waste Processing Facility (DWPF) feed preparation process. It will either be a total or partial replacement for the formic acid that is currently used. A literature review has been conducted on the impact of glycolate on two post-DWPF downstream systems - the 2H Evaporator system and the Effluent Treatment Facility (ETF). The DWPF recycle stream serves as a portion of the feed to the 2H Evaporator. Glycolate enters the… more
Date: May 10, 2012
Creator: Adu-Wusu, K.
Item Type: Refine your search to only Report
open access

The Future of the Eurozone and U.S. Interests

Description: Seventeen of the European Union's 27 member states share an economic and monetary union (EMU) with the euro as a single currency. These countries are effectively referred to as the Eurozone. What has become known as the Eurozone crisis began in early 2010 when financial markets were shaken by heightened concerns that the fiscal positions of a number of Eurozone countries, beginning with Greece, were unsustainable. This report provides background information and analysis on the future of the Eur… more
Date: January 10, 2011
Creator: Ahearn, Raymond J.; Jackson, James K.; Nelson, Rebecca M. & Weiss, Martin A.
Item Type: Refine your search to only Report
open access

Gray Wolves Under the Endangered Species Act: Distinct Population Segments and Experimental Populations

Description: This report analyzes the DPS designation process as it is applied to the gray wolf. It also examines experimental populations of wolves under the ESA and their protections. As part of its oversight responsibilities, Congress has conducted hearings on the Fish and Wildlife Service’s application of science to endangered species.
Date: August 10, 2010
Creator: Alexander, Kristina & Corn, M. L.
Item Type: Refine your search to only Report
open access

Measuring Sparticles with the Matrix Element

Description: We apply the Matrix Element Method (MEM) to mass determination of squark pair production with direct decay to quarks and LSP at the LHC, showing that simultaneous mass determination of squarks and LSP is possible. We furthermore propose methods for inclusion of QCD radiation effects in the MEM. The goal of the LHC at CERN, scheduled to start this year, is to discover new physics through deviations from the Standard Model (SM) predictions. After discovery of deviations from the SM, the next step… more
Date: April 10, 2012
Creator: Alwall, Johan; /SLAC /Taiwan, Natl. Taiwan U.; Freitas, Ayres; U., /Pittsburgh; Mattelaer, Olivier & /INFN, Rome3 /Rome III U. /Louvain U.
Item Type: Refine your search to only Article
open access

Stauts of the Laser Inertial Fusion Energy (LIFE) Hohlraum Point Design

Description: Progress on the hohlraum point design for the LIFE engine is described. New features in the original design [Amendt et al., Fus. Sci. Technol. 60, 49 (2011)] are incorporated that address the imperatives of low target cost, high manufacturing throughput, efficient and prompt material recycling, an ability for near-term testing of key target design uncertainties on the National Ignition Facility, and robustness to target chamber environment and injection insults. To this end, the novel use of Pb… more
Date: April 10, 2012
Creator: Amendt, P.; Dunne, M.; Ho, D.; Lasinski, B.; Meeker, D. & Ross, J. S.
Item Type: Refine your search to only Article
open access

The SM and NLO Multileg Working Group: Summary Report

Description: After years of waiting, and after six Les Houches workshops, the era of LHC running is finally upon us, albeit at a lower initial center-of-mass energy than originally planned. Thus, there has been a great sense of anticipation from both the experimental and theoretical communities. The last two years, in particular, have seen great productivity in the area of multi-parton calculations at leading order (LO), next-to-leading order (NLO) and next-to-next-to-leading order (NNLO), and this producti… more
Date: April 10, 2012
Creator: Andersen, J. R.; Archibald, J.; Badger, S.; Ball, R. D.; Bevilacqua, G.; Bierenbaum, I. et al.
Item Type: Refine your search to only Article
open access

Muon Fluence Measurements for Homeland Security Applications

Description: This report focuses on work conducted at Pacific Northwest National Laboratory to better characterize aspects of backgrounds in RPMs deployed for homeland security purposes. Two polyvinyl toluene scintillators were utilized with supporting NIM electronics to measure the muon coincidence rate. Muon spallation is one mechanism by which background neutrons are produced. The measurements performed concentrated on a broad investigation of the dependence of the muon flux on a) variations in solid ang… more
Date: August 10, 2010
Creator: Ankney, Austin S.; Berguson, Timothy J.; Borgardt, James D. & Kouzes, Richard T.
Item Type: Refine your search to only Report
open access

Northern Ireland: The Peace Process

Description: This report provides background information regarding political violence and the peace process in Northern Ireland. It includes further information about the devolved government and recurrent crises (1999-2002, 2003-2007 and 2008-2010), implementation of police reforms, recent events and ongoing challenges, relevant U.S. policy, and recent legislation.
Date: January 10, 2014
Creator: Archick, Kristin
Item Type: Refine your search to only Report
open access

Algeria: Current Issues

Description: This report examines the current state of Algeria, including Algeria's associations with terrorism, the weakening of the Algerian military, and the nation's growing oil revenues.
Date: February 10, 2011
Creator: Arieff, Alexis
Item Type: Refine your search to only Report
open access

Reauthorization of SNAP and Other Nutrition Programs in the Next Farm Bill: Issues for the 113th Congress

Description: This report discusses the Nutrition Title (Title IV) of the pending farm bills and elaborates on the most controversial issues and differences between Senate and House proposals. Policies that are not necessarily controversial but are complex are also included in this report.
Date: December 10, 2013
Creator: Aussenberg, Randy Alison
Item Type: Refine your search to only Report
open access

2012 Farm Bill: Changing the Treatment of LIHEAP Receipt in the Calculation of SNAP Benefits

Description: This report describes the contents of the 2012 Farm Bill, cost reducing measures in the Farm Bill, and the implications of both of these. Specifically, the report focuses on SNAP (Supplemental Nutrition Assistance Program) which is a cost saving measure that addresses how certain deductions from income will be calculated.
Date: July 10, 2012
Creator: Aussenberg, Randy Alison & Perl, Libby
Item Type: Refine your search to only Report
open access

The Debt Limit: History and Recent Increases

Description: This report gives an historical overview of debt limits, discusses how the total debt of the federal government can increase and how the current economic slowdown has led to higher deficits and thereby a series of debt limit increases, as well as legislation related to these increases.
Date: January 10, 2013
Creator: Austin, D. Andrew & Levit, Mindy R.
Item Type: Refine your search to only Report
open access

Trends in Discretionary Spending

Description: Discretionary spending is provided in, and controlled by, annual appropriations acts, which fund many of the routine activities commonly associated with such federal government functions as running executive branch agencies, congressional offices and agencies, and international operations of the government. Essentially all spending on federal wages and salaries is discretionary. This report discusses historical, current, and projected discretionary spending trends. It also describes how current… more
Date: September 10, 2010
Creator: Austin, D. Andrew & Levit, Mindy R.
Item Type: Refine your search to only Report
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