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6-D weak-strong beam-beam simulation study of proton lifetime in presence of head-on beam-beam compensation in the RHIC (open access)

6-D weak-strong beam-beam simulation study of proton lifetime in presence of head-on beam-beam compensation in the RHIC

In this note we summarize the calculated particle loss of a proton bunch in the presence of head-on beam-beam compensation in the Relativistic Heavy Ion Collider (RHIC). To compensate the head-on beam-beam effect in the RHIC 250 GeV polarized proton run, we are introducing a DC electron beam with the same transverse profile as the proton beam to collide with the proton beam. Such a device is called an electron lens (e-lens). In this note we first present the optics and beam parameters and the tracking setup. Then we calculate and compare the particle loss of a proton bunch with head-on beam-beam compensation, phase advance of k{pi} between IP8 and the center of the e-lens and second order chromaticity correction. We scanned the proton beam's linear chromaticity, working point and bunch intensity. We also scanned the electron beam's intensity, transverse beam size. The effect of the electron-proton transverse offset in the e-lens was studied. In the study 6-D weak-strong beam-beam interaction model a la Hirata is used for proton collisions at IP6 and IP8. The e-lens is modeled as 8 slices. Each slice is modeled with as drift - (4D beam-beam kick) - drift.
Date: August 1, 2010
Creator: Luo, Y. & Fischer, W.
System: The UNT Digital Library
2009 Argonne National Laboratory Annual Illness and Injury Surveillance Report (open access)

2009 Argonne National Laboratory Annual Illness and Injury Surveillance Report

The U.S. Department of Energy’s (DOE) commitment to assuring the health and safety of its workers includes the conduct of epidemiologic surveillance activities that provide an early warning system for health problems among workers. The Illness and Injury Surveillance Program monitors illnesses and health conditions that result in an absence of workdays, occupational injuries and illnesses, and disabilities and deaths among current workers.
Date: August 19, 2010
Creator: United States. Department of Energy. Office of Illness and Injury Prevention Programs.
System: The UNT Digital Library
2009 International Conference on Neutron Scattering (ICNS 2009) (open access)

2009 International Conference on Neutron Scattering (ICNS 2009)

The ICNS provides a focal point for the worldwide neutron user community to strengthen ties within this diverse group, while at the same time promoting neutron research among colleagues in related disciplines identified as “would-be” neutron users. The International Conference on Neutron Scattering thus serves a dual role as an international user meeting and a scientific meeting. As a venue for scientific exchange, the ICNS showcases recent results and provides forums for scientific discussion of neutron research in diverse fields such as hard and soft condensed matter, liquids, biology, magnetism, engineering materials, chemical spectroscopy, crystal structure, and elementary excitations, fundamental physics and development of neutron instrumentation through a combination of invited talks, contributed talks and poster sessions. Each of the major national neutron facilities (NIST, LANSCE, ANL, HFIR and SNS), along with their international counterparts, has an opportunity to exchange information with each other and to update users, and potential users, of their facility. This is also an appropriate forum for users to raise issues that relate to the facilities.
Date: August 5, 2010
Creator: Rao, Gopal & Gillespie, Donna
System: The UNT Digital Library
2009 Release of the Evaluated Nuclear Data Library (ENDL2009) (open access)

2009 Release of the Evaluated Nuclear Data Library (ENDL2009)

None
Date: August 12, 2010
Creator: Beck, B.; Brown, D. A.; Descalle, M. A.; Hagmann, C.; Hoffman, R.; Ormand, E. et al.
System: The UNT Digital Library
2009 Renewable Energy Data Book, August 2010 (open access)

2009 Renewable Energy Data Book, August 2010

This Renewable Energy Data Book for 2009 provides facts and figures on energy in general, renewable electricity in the United States, global renewable energy development, wind power, solar energy, geothermal power, biopower, hydropower, advanced water power, hydrogen, renewable fuels, and clean energy investments.
Date: August 1, 2010
Creator: unknown
System: The UNT Digital Library
2009 Wind Technologies Market Report (open access)

2009 Wind Technologies Market Report

The U.S. wind power industry experienced yet another record year in 2009, once again surpassing even optimistic growth projections from years past. At the same time, 2009 was a year of upheaval, with the global financial crisis impacting the wind power industry and with federal policy changes enacted to push the industry toward continued aggressive expansion. The year 2010, meanwhile, is anticipated to be one of some retrenchment, with expectations for fewer wind power capacity additions than seen in 2009. The rapid pace of development and change within the industry has made it difficult to keep up with trends in the marketplace, yet the need for timely, objective information on the industry and its progress has never been greater. This report - the fourth in an ongoing annual series - attempts to meet this need by providing a detailed overview of developments and trends in the United States wind power market, with a particular focus on 2009.
Date: August 1, 2010
Creator: Wiser, R. & Bolinger, M.
System: The UNT Digital Library
2009 Wind Technologies Market Report (open access)

2009 Wind Technologies Market Report

This report addresses the U.S. wind power industry during the year of 2009.
Date: August 2, 2010
Creator: Wiser, Ryan & Bolinger, Mark
System: The UNT Digital Library
2009 Wind Technologies Market Report: Executive Summary (open access)

2009 Wind Technologies Market Report: Executive Summary

This is the Executive Summary of the full report entitled 2009 Wind Technologies Market Report (DOE/GO-102010-3107).
Date: August 1, 2010
Creator: Wiser, R. & Bolinger, M.
System: The UNT Digital Library
The 2010 Oil Spill: Criminal Liability Under Wildlife Laws (open access)

The 2010 Oil Spill: Criminal Liability Under Wildlife Laws

This report highlights the possible ways to prosecute those who caused the 2010 oil spill in the Gulf of Mexico. The report suggests that prosecution can be done under laws such as the ESA (Endangered Species Act) or the MMPA (Marine Mammal Protection Act) both of which provide for civil and criminal punishment. However, the most likely law to be used will be the MBTA (Migratory Bird Treatment Act) which makes it a crime to kill migratory birds. The report suggests that the MBTA would be the best method to prosecute for criminal liability.
Date: August 31, 2010
Creator: Alexander, Kristina
System: The UNT Digital Library
The 2010 Oil Spill: MMS/BOEMRE and NEPA (open access)

The 2010 Oil Spill: MMS/BOEMRE and NEPA

This report reviews the environmental procedures required following the explosion of an oil well on a tract leased by BP from the federal government.
Date: August 19, 2010
Creator: Alexander, Kristina
System: The UNT Digital Library
90Sr liquid scintillation urine analysis utilizing different approaches for tracer recovery. (open access)

90Sr liquid scintillation urine analysis utilizing different approaches for tracer recovery.

90Sr is one of the isotopes most commonly produced by nuclear fission. This medium lived isotope presents serious challenges to radiation workers, the environment, and following a nuclear event, the general public. Methods of identifying this nuclide have been in existence for a number of years (e.g. Horwitz, E.P. [1], Maxwell, S.L.[2], EPA 905.0 [3]) which are time consuming, requiring a month or more for full analysis. This time frame is unacceptable in the present security environment. It is therefore important to have a dependable and rapid method for the determination of Sr. The purposes of this study are to reduce analysis time to less than half a day by utilizing a single method of radiation measurement while continuing to yield precise results. This paper presents findings on three methods that can meet this criteria; (1) stable Sr carrier, (2) 85Sr by gamma spectroscopy, and (3) 85Sr by LSC. Two methods of analyzing and calculating the 85Sr tracer recovery were investigated (gamma spectroscopy and a low energy window-Sr85LEBAB by LSC) as well as the use of two different types of Sr tracer (85Sr and stable Sr carrier). Three separate stock blank urine samples were spiked with various activity levels of …
Date: August 1, 2010
Creator: Piraner, Olga; Preston, Rose T.; Shanks, Sonoya Toyoko & Jones, Robert
System: The UNT Digital Library
Abortion and Family Planning-Related Provisions in U.S. Foreign Assistance Legislation and Policy (open access)

Abortion and Family Planning-Related Provisions in U.S. Foreign Assistance Legislation and Policy

This report details legislation and policies that restrict or place requirements on U.S. funding of abortion or family planning activities abroad. The level and extent of federal funding for these activities is an ongoing and controversial issue in U.S. foreign assistance and will likely continue to be a point of contention during the 111th Congress.
Date: August 6, 2010
Creator: Blanchfield, Luisa
System: The UNT Digital Library
Access to Broadband Networks: The Net Neutrality Debate (open access)

Access to Broadband Networks: The Net Neutrality Debate

This report discusses the current debate over "net neutrality." While there is no single accepted definition of "net neutrality," most agree that any such definition should include the general principles that owners of the networks that compose and provide access to the Internet should not control how consumers lawfully use that network, and they should not be able to discriminate against content provider access to that network.
Date: August 11, 2010
Creator: Gilroy, Angele A.
System: The UNT Digital Library
Activation Layer Stabilization of High Polarization Photocathodes in Sub-Optimal RF Gun Environments (open access)

Activation Layer Stabilization of High Polarization Photocathodes in Sub-Optimal RF Gun Environments

We have developed an activation procedure by which the reactivity to CO{sub 2}, a principal cause of yield decay for GaAs photocathodes, is greatly reduced. The use of a second alkali in the activation process is responsible for the increased immunity of the activated surface. The best immunity was obtained by using a combination of Cs and Li without any loss in near bandgap yield. Optimally activated photocathodes have nearly equal quantities of both alkalis.
Date: August 25, 2010
Creator: Mulhollan, Gregory & /SLAC /Saxed Surface Science, Austin, TX
System: The UNT Digital Library
Adapting ORAP to wind plants : industry value and functional requirements. (open access)

Adapting ORAP to wind plants : industry value and functional requirements.

Strategic Power Systems (SPS) was contracted by Sandia National Laboratories to assess the feasibility of adapting their ORAP (Operational Reliability Analysis Program) tool for deployment to the wind industry. ORAP for Wind is proposed for use as the primary data source for the CREW (Continuous Reliability Enhancement for Wind) database which will be maintained by Sandia to enable reliability analysis of US wind fleet operations. The report primarily addresses the functional requirements of the wind-based system. The SPS ORAP reliability monitoring system has been used successfully for over twenty years to collect RAM (Reliability, Availability, Maintainability) and operations data for benchmarking and analysis of gas and steam turbine performance. This report documents the requirements to adapt the ORAP system for the wind industry. It specifies which existing ORAP design features should be retained, as well as key new requirements for wind. The latter includes alignment with existing and emerging wind industry standards (IEEE 762, ISO 3977 and IEC 61400). There is also a comprehensive list of thirty critical-to-quality (CTQ) functional requirements which must be considered and addressed to establish the optimum design for wind.
Date: August 1, 2010
Creator: unknown
System: The UNT Digital Library
Administration’s Proposal to Reauthorize the Elementary and Secondary Education Act: Comparison to Current Law (open access)

Administration’s Proposal to Reauthorize the Elementary and Secondary Education Act: Comparison to Current Law

This report discusses the challenges and consequences of reauthorizing the Elementary and Secondary Education Act (ESEA). Moreover, the report outlines the Department of Education's (ED) ideas for reform in the reauthorization. Finally, the reforms are compared to the current policy the ESEA possesses.
Date: August 3, 2010
Creator: Skinner, Rebecca R.; Lomax, Erin D.; Dortch, Cassandria; Kuenzi, Jeffrey J. & McCallion, Gail
System: The UNT Digital Library
Advanced Initiation Systems Manufacturing Level 2 Milestone Completion Summary (open access)

Advanced Initiation Systems Manufacturing Level 2 Milestone Completion Summary

None
Date: August 26, 2010
Creator: Chow, R & Schmidt, M A
System: The UNT Digital Library
Advanced Reflector and Absorber Materials (Fact Sheet) (open access)

Advanced Reflector and Absorber Materials (Fact Sheet)

Fact sheet describing NREL CSP Program capabilities in the area of advanced reflector and absorber materials: evaluating performance, determining degradation rates and lifetime, and developing new coatings.
Date: August 1, 2010
Creator: unknown
System: The UNT Digital Library
Afghanistan Casualties: Military Forces and Civilians (open access)

Afghanistan Casualties: Military Forces and Civilians

This report collects statistics from a variety of sources on casualties sustained during Operation Enduring Freedom (OEF), which began on October 7, 2001. OEF actions took place primarily in Afghanistan; however, OEF casualties also include American casualties in Pakistan, Uzbekistan, Guantanamo Bay (Cuba), Djibouti, Eritrea, Ethiopia, Jordan, Kenya, Kyrgyzstan, the Philippines, Seychelles, Sudan, Tajikistan, Turkey, and Yemen.
Date: August 11, 2010
Creator: Chesser, Susan G.
System: The UNT Digital Library
Afghanistan: Post-Taliban Governance, Security, and U.S. Policy (open access)

Afghanistan: Post-Taliban Governance, Security, and U.S. Policy

This report discusses the current political state of Iran, focusing particularly on the influence of the Taliban and other militant groups and on the leadership of Afghan President Hamid Karzai. This report also discusses the U.S.-Iran relationship and U.S. efforts under the Obama Administration to provide military, reconstructive, and stabilization aid.
Date: August 17, 2010
Creator: Katzman, Kenneth
System: The UNT Digital Library
Afghanistan: U.S. Foreign Assistance (open access)

Afghanistan: U.S. Foreign Assistance

The U.S. program of assistance to Afghanistan is intended to stabilize and strengthen the Afghan economic, social, political, and security environment so as to blunt popular support for extremist forces in the region. Since 2001, nearly $52 billion has been appropriated toward this effort. This report provides a "big picture" overview of the U.S. aid program and congressional action. It describes what various aid agencies report they are doing in Afghanistan. It does not address the effectiveness of their programs.
Date: August 12, 2010
Creator: Tarnoff, Curt
System: The UNT Digital Library
Africa: U.S. Foreign Assistance Issues (open access)

Africa: U.S. Foreign Assistance Issues

The United States provides assistance to 47 African countries, and the United States Agency for International Development (USAID) has 23 missions in Africa. In recent years, U.S. assistance to Africa saw a major increase, especially in health-related programs. This report provides an overview of U.S. aid to Africa, including the strategic objectives that shape U.S. aid to Africa, information about specific aid programs and initiatives, and the Obama Administration's FY2011 foreign aid budget request.
Date: August 3, 2010
Creator: Dagne, Ted
System: The UNT Digital Library
AGC-2 Graphite Pre-irradiation Data Package (open access)

AGC-2 Graphite Pre-irradiation Data Package

The NGNP Graphite R&D program is currently establishing the safe operating envelope of graphite core components for a Very High Temperature Reactor (VHTR) design. The program is generating quantitative data necessary for predicting the behavior and operating performance of the new nuclear graphite grades. To determine the in-service behavior of the graphite for pebble bed and prismatic designs, the Advanced Graphite Creep (AGC) experiment is underway. This experiment is examining the properties and behavior of nuclear grade graphite over a large spectrum of temperatures, neutron fluences and compressive loads. Each experiment consists of over 400 graphite specimens that are characterized prior to irradiation and following irradiation. Six experiments are planned with the first, AGC-1, currently being irradiated in the Advanced Test Reactor (ATR) and pre-irradiation characterization of the second, AGC-2, completed. This data package establishes the readiness of 512 specimens for assembly into the AGC-2 capsule.
Date: August 1, 2010
Creator: Swank, David; Lord, Joseph; Rohrbaugh, David & Windes, William
System: The UNT Digital Library
Alloy Design and Thermomechanical Processing of a Beta Titanium Alloy for a Heavy Vehicle Application (open access)

Alloy Design and Thermomechanical Processing of a Beta Titanium Alloy for a Heavy Vehicle Application

With the strength of steel, but at half the weight, titanium has the potential to offer significant benefits in the weight reduction of heavy vehicle components while possibly improving performance. However, the cost of conventional titanium fabrication is a major barrier in implementation. New reduction technologies are now available that have the potential to create a paradigm shift in the way the United States uses titanium, and the economics associated with fabrication of titanium components. This CRADA project evaluated the potential to develop a heavy vehicle component from titanium powders. The project included alloy design, development of manufacturing practices, and modeling the economics associated with the new component. New Beta alloys were designed for this project to provide the required mechanical specifications while utilizing the benefits of the new fabrication approach. Manufacturing procedures were developed specific to the heavy vehicle component. Ageing and thermal treatment optimization was performed to provide the desired microstructures. The CRADA partner established fabrication practices and targeted capital investment required for fabricating the component out of titanium. Though initial results were promising, the full project was not executed due to termination of the effort by the CRADA partner and economic trends observed in the heavy vehicle …
Date: August 1, 2010
Creator: Peter, William H. & Blue, Craig A.
System: The UNT Digital Library