The surrogate reaction 238U(3He,tf) is used to determine the 237Np(n,f) cross section indirectly over an equivalent neutron energy range from 10 to 20 MeV. A self-supporting ~;;761 mu g/cm2 metallic 238U foil was bombarded with a 42 MeV 3He2+ beam from the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory (LBNL). Outgoing charged particles and fission fragments were identified using the Silicon Telescope Array for Reaction Studies (STARS), consists of two 140 mu m and one 1000 mu m Micron S2 type silicon detectors. The 237Np(n,f) cross sections, determined indirectly, were compared with the 237Np(n,f) cross section data from direct measurements, the Evaluated Nuclear Data File (ENDF/B-VII.0), and the Japanese Evaluated Nuclear Data Library (JENDL 3.3) and found to closely follow those datasets. Use of the (3He,tf) reaction as a surrogate to extract (n,f) cross section in the 10 to 20 MeV equivalent neutron energy is found to be suitable.

This report provides an overview of the Advanced Spectroscopic Portal (ASP) program's history and outlines issues for Congress as the program moves forward. The ASP is an improved type of radiation detection device, meant to serve as part of new and existing programs to protect against terrorist nuclear or radiological attack.

Box integrals - expectations <|{rvec r}|{sup s}> or <|{rvec r}-{rvec q}|{sup s}> over the unit n-cube (or n-box) - have over three decades been occasionally given closed forms for isolated n,s. By employing experimental mathematics together with a new, global analytic strategy, we prove that for n {le} 4 dimensions the box integrals are for any integer s hypergeometrically closed in a sense we clarify herein. For n = 5 dimensions, we show that a single unresolved integral we call K{sub 5} stands in the way of such hyperclosure proofs. We supply a compendium of exemplary closed forms that naturally arise algorithmically from this theory.

This report discusses the Air Force F-22 fighter, also known as the Raptor. The administration wants to end F-22 procurement at 187 aircraft, and the administration's proposed FY2010 budget does not request funding for the procurement of additional F-22s in FY2010. The issue of F-22 procurement has emerged as one of the highest-profile items of debate on the FY2010 defense budget. This report discusses both sides of the debate.

This report discusses key issues regarding funding for a next-generation bomber (NGB) program. Congress's decisions on these issues could affect Air Force capabilities and funding requirements, and the U.S. aircraft manufacturing industrial base.

Compilation of Advanced Light Source newsletter, ALSNews, for 2009, Volumes 294-304.

High temperature creep in structures at the interface between the nuclear plant and the hydrogen plant and the migration of tritium from the core through structures in the interface are two key challenges for the Very High Temperature Reactor (VHTR) coupled to the High Temperature Electrolysis (HTE) process. The severity of these challenges, however, can be reduced by lowering the temperature at which the interface operates. Preferably this should be accomplished in a way that does not reduce combined plant efficiency and other performance measures. A means for doing so is described in this report. A heat pump is used to raise the temperature of near-waste heat from the PCU to the temperature at which nine-tenths of the HTE process heat is needed. In addition to mitigating tritium transport and creep of structures, structural material commodity costs are reduced and plant efficiency is increased by a couple of percent.

This report analyzes the language contained in § 1607 of the American Recovery and Reinvestment Act of 2009 (Recovery Act),1 which provides that federal funds can be made available to a state by the federal government either after certification by a governor that such money will be requested and spent or after the adoption of a concurrent resolution by a state legislature. This report evaluates the authority of state legislatures to, by concurrent resolution, provide for the acceptance of federal funds.

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A chapter report issued by the Government Accountability Office with an abstract that begins "In December 2007, the Congress expanded the renewable fuel standard (RFS), which requires rising use of ethanol and other biofuels, from 9 billion gallons in 2008 to 36 billion gallons in 2022. To meet the RFS, the Departments of Agriculture (USDA) and Energy (DOE) are developing advanced biofuels that use cellulosic feedstocks, such as corn stover and switchgrass. The Environmental Protection Agency (EPA) administers the RFS. This report examines, among other things, (1) the effects of increased biofuels production on U.S. agriculture, environment, and greenhouse gas emissions; (2) federal support for domestic biofuels production; and (3) key challenges in meeting the RFS. GAO extensively reviewed scientific studies, interviewed experts and agency officials, and visited five DOE and USDA laboratories."

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Justice's Federal Bureau of Prisons (BOP) is responsible for the custody and care of more than 202,000 federal offenders with approximately 35,000 employees, almost half of whom are correctional officers, dispersed across BOP's 114 correctional facilities in 6 regions. In response to a request, GAO identified whether BOP had policies and procedures and how it assessed the management of those policies and procedures for (1) employee-requested lateral transfers of BOP employees between correctional facilities and (2) day-to-day changes in correctional services or temporary assignments of BOP employees within a correctional facility. GAO reviewed available documentation on BOP's policies and procedures on lateral transfers and temporary assignments. GAO also interviewed officials from BOP's central and regional offices and seven facilities selected on the basis of the number of staff; at least one facility was selected from within each of BOP's six regions."

The Energy Independence and Security Act of 2007 (EISA) significantly expanded the renewable fuel standard (RFS) established in the Energy Policy Act of 2005. EISA requires an increasing amount of the 36 billion gallons of renewable fuel by 2022 mandate be met with "advanced biofuels." This report defines the classification "biofuels," discusses the ongoing debate regarding several aspects of biofuels endeavors, and discusses related legislative efforts on climate change policy and low-carbon fuel standards.

The Energy Independence and Security Act of 2007 (EISA, P.L. 110-140), significantly expanded the renewable fuel standard (RFS) established in the Energy Policy Act of 2005 (EPAct 2005, P.L. 109-58). The RFS requires the use of 9.0 billion gallons of renewable fuel in 2008, increasing to 36 billion gallons in 2022.

This report discusses the internal and external security concerns of the Central Asian states. Security concerns faced by the states include mixes of social disorder, crime, corruption, terrorism, ethnic and civil conflict, border tensions, water and transport disputes, the proliferation of weapons of mass destruction (WMD), and trafficking in illegal narcotics and persons.

This report illustrates how the United States has been in the midst of a profound demographic change: the rapid aging of its population, as reflected by an increasing proportion of persons aged 65 and older, and an increasing median age in the population.

This technical report documents the results of laboratory geochemical and hydrologic measurements of sediments collected from new borehole 299-E13-65 (C7047) and comparison of the results with those of nearby borehole 299-13E-62 (C5923) both drilled in the BC Cribs and Trenches Area. The total and water-leachable concentrations of key contaminants will be used to update contaminant-distribution conceptual models and to provide more data for improving baseline risk predictions and remedial alternative selections. Improved understanding of subsurface conditions and methods to remediate these principal contaminants can be also used to evaluate the application of specific technologies to other contaminants across the Hanford Site.

This report examines China's foreign assistance and government-supported, often-preferential investment ventures in three regions: Africa, Latin America (Western Hemisphere), and Southeast Asia. These activities often are collectively referred to as "economic assistance" by some analysts and in this report.

This report examines China's economic impact in three regions -- Africa, Latin America (Western Hemisphere), and Southeast Asia -- with an emphasis on bilateral foreign assistance. In the past several years, the People's Republic of China (PRC) has bolstered its diplomatic presence and garnered international goodwill through its financing of infrastructure and natural resource development projects, assistance in the carrying out of such projects, and large economic investments in many developing countries

Testimony issued by the Government Accountability Office with an abstract that begins "Changes in the climate attributable to increased concentrations of greenhouse gases may have significant environmental and economic impacts in the United States. For example, climate change could threaten coastal areas with rising sea levels, alter agricultural productivity, and increase the intensity and frequency of floods and storms. Federal, state, and local agencies are tasked with a wide array of responsibilities that will be affected by a changing climate, such as managing natural resources. Furthermore, climate change could increase the cost of federal programs, such as crop and flood insurance, and place new stresses on infrastructure. Greenhouse gases already in the atmosphere will continue altering the climate system into the future regardless of emissions control efforts. Therefore, adaptation--defined as adjustments to natural or human systems in response to actual or expected climate change--is an important part of the response to climate change. Today's testimony summarizes GAO's prior and ongoing work examining (1) actions that federal, state, local, and international authorities are taking to adapt to a changing climate, (2) the challenges that federal, state, and local officials face in their efforts to adapt, and (3) actions that the Congress …

We present recent developments on the single transverse spin physics, in particular, the Collins mechanism contributions in various hadronic reactions, such as semi-inclusive hadron production in DIS process, azimuthal distribution of hadron in high energy jet in pp collisions. We will demonstrate that the transverse momentum dependent and collinear factorization approaches are consistent with each other in the description of the Collins effects in the semi-inclusive hadron production in DIS process.

Testimony issued by the Government Accountability Office with an abstract that begins "The Department of Homeland Security's (DHS) Domestic Nuclear Detection Office (DNDO) is responsible for addressing the threat of nuclear smuggling. Radiation detection portal monitors are key elements in the nation's defenses against such threats. DHS has sponsored testing to develop new monitors, known as advanced spectroscopic portal (ASP) monitors, to replace radiation detection equipment being used at ports of entry. DNDO expects that ASPs may offer improvements over current-generation portal monitors, particularly the potential to identify as well as detect radioactive material and thereby to reduce both the risk of missed threats and the rate of innocent alarms, which DNDO considers to be key limitations of radiation detection equipment currently used by Customs and Border Protection (CBP) at U.S. ports of entry. However, ASPs cost significantly more than current generation portal monitors. Due to concerns about ASPs' cost and performance, Congress has required that the Secretary of Homeland Security certify that ASPs provide a significant increase in operational effectiveness before obligating funds for full-scale ASP procurement. This testimony addresses (1) GAO findings on DNDO's latest round of ASP testing, and (2) lessons from ASP testing that can be …

Testimony issued by the Government Accountability Office with an abstract that begins "Recent cases of corporate fraud and mismanagement heighten the Department of Justice's (DOJ) need to appropriately punish and deter corporate crime. Recently, DOJ has made more use of deferred prosecution and non-prosecution agreements (DPAs and NPAs), in which prosecutors may require company reform, among other things, in exchange for deferring prosecution, and may also require companies to hire an independent monitor to oversee compliance. This testimony provides preliminary observations on (1) factors DOJ considers when deciding whether to enter into a DPA or NPA and setting the terms of the agreements, (2) methods DOJ uses to oversee companies' compliance, (3) processes by which monitors are selected, and (4) companies' perspectives regarding the costs and role of the monitor. It also includes the results of GAO's recently completed work on DOJ's efforts to document the monitor selection process (discussed in objective 3). GAO reviewed DOJ guidance and 57 of the 140 agreements negotiated from 1993 (when the first 2 were signed) through May 2009; and interviewed DOJ officials, officials from 17 companies, and 6 monitors. While not generalizable, these results provide insight into decisions about DPAs and NPAs."

As critical dimensions for leading-edge semiconductor devices shrink, line-edge roughness (LER) requirements are pushing well into the single digit nanometer regime. At these scales many new sources of LER must be considered. In the case of extreme ultraviolet (EUV) lithography, modeling has shown the lithographic mask to be a source of significant concern. Here we present a correlation-based methodology for experimentally measuring the magnitude of mask contributors to printed LER. The method is applied to recent printing results from a 0.3 numerical aperture EUV microfield exposure tool. The measurements demonstrate that such effects are indeed present and of significant magnitude. The method is also used to explore the effects of illumination coherence and defocus and has been used to verify model-based predictions of mask-induced LER.

This project was designed to test diamond, diamond-like and related materials in environments that are expected in thermochemical cycles. Our goals were to build a High Temperature Corrosion Resistance (HTCR) test stand and begin testing the corrosive properties of barious materials in a high temperature acidic environment in the first year. Overall, we planned to test 54 samples each of diamond and diamond-like films (of 1 cm x 1 cm area). In addition we use a corrosion acceleration method by treating the samples at a temperature much larger than the expected operating temperature. Half of the samples will be treated with boron using the FEDOA process.