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open access

A 200 MHz 35 MW Multiple Beam Klystron for Accelerator Applications Final Report

Description: Calabazas Creek Research, Inc. (CCR) performed initial development of a compact and reliable 35 MW, multiple beam klystron (MBK) at 200 MHz with a pulse length of 0.125 ms and a 30 Hz repetition rate. The device was targeted for acceleration and ionization cooling of a muon collider, but there are several other potential applications in this frequency range. The klystron uses multiple beams propagating in individual beam tunnels to reduce space charge and allow reduction in the accelerating vol… more
Date: November 28, 2011
Creator: Ives, R. Lawrence; Read, Michael; Ferguson, Patrick & Marsden, David
Item Type: Refine your search to only Report
open access

A 350 MHz, 200 kW CW, Multiple Beam Inductive Output Tube - Final Report

Description: This program developed a 200 kW CW, 350 MHz, multiple beam inductive output tube (MBIOT) for driving accelerator cavities. The MBIOT operates at 30 kV with a gain of 23 dB. The estimated efficiency is 70%. The device uses seven electron beams, each transmitting 1.4 A of current. The tube is approximately six feet long and weighs approximately 400 lbs. The prototype device will be evaluated as a potential RF source for the Advanced Photon Source at Argonne National Laboratory (ANL). Because of i… more
Date: November 28, 2012
Creator: Ives, R. Lawrece; Collins, George; Read, David Marsden Michael; Eisen, Edward & Takuchi Kamura, Philipp Borchard
Item Type: Refine your search to only Report
open access

401(K) Plans: Improved Regulation Could Better Protect Participants from Conflicts of Interest

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Recent volatility in financial markets highlights the need for prudent investment decisions if 401(k) plans are to provide an adequate source of retirement income. While plan sponsors and participants may receive help in assessing their investment choices, concerns have been raised about the impartiality of the advice provided. GAO was asked to describe circumstances where service providers may have con… more
Date: January 28, 2011
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
open access

618-10 Burial Ground Trench Remediation and 618-10 and 618-11 Burial Ground Nonintrusive Characterization of Vertical Pipe Units Lessons Learned

Description: A “lessons learned” is a noteworthy practice or innovative approach that is captured and shared to promote repeat application, or an adverse work practice/experience that is captured and shared to avoid reoccurrence. This document provides the lessons learned identified by the 618-10 Burial Ground trench remediation and the 618-10 and 618-11 Burial Ground nonintrusive characterization of the vertical pipe units (VPUs).
Date: June 28, 2012
Creator: Darby, J. W.
Item Type: Refine your search to only Report
open access

The “1033 Program,” Department of Defense Support to Law Enforcement

Description: This report focuses on the "1033 Program" that grants authority to the Secretary of Defense to give defense material to federal and state agencies. The focal point of the program is mostly for terrorism and illegal drug activities. This report describes how law enforcement agencies may apply to be part of the program and the structure of the program.
Date: August 28, 2014
Creator: Else, Daniel H.
Item Type: Refine your search to only Report
open access

The 2010 Oil Spill: Criminal Liability Under Wildlife Laws

Description: In April 2010 an explosion occurred on an oil rig in the Gulf of Mexico, reportedly killing 11 people, and, according to federal experts, causing the worst oil spill in U.S. history. Millions of barrels of oil are believed to have leaked into the Gulf of Mexico. As the oil spreads, the implications for harm to wildlife grow. The United States has many laws that protect wildlife from harm. This report discusses three: the Endangered Species Act, the Marine Mammal Protection Act, and the Migrator… more
Date: June 28, 2010
Creator: Alexander, Kristina
Item Type: Refine your search to only Report
open access

2012 Annual Report: Simulate and Evaluate the Cesium Transport and Accumulation in Fukushima-Area Rivers by the TODAM Code

Description: Pacific Northwest National Laboratory initiated the application of the time-varying, one-dimensional sediment-contaminant transport code, TODAM (Time-dependent, One-dimensional, Degradation, And Migration) to simulate the cesium migration and accumulation in the Ukedo River in Fukushima. This report describes the preliminary TODAM simulation results of the Ukedo River model from the location below the Ougaki Dam to the river mouth at the Pacific Ocean. The major findings of the 100-hour TODAM s… more
Date: March 28, 2013
Creator: Onishi, Yasuo & Yokuda, Satoru T.
Item Type: Refine your search to only Report
open access

Ab Initio Enhanced calphad Modeling of Actinide-Rich Nuclear Fuels

Description: The process of fuel recycling is central to the Advanced Fuel Cycle Initiative (AFCI), where plutonium and the minor actinides (MA) Am, Np, and Cm are extracted from spent fuel and fabricated into new fuel for a fast reactor. Metallic alloys of U-Pu-Zr-MA are leading candidates for fast reactor fuels and are the current basis for fast spectrum metal fuels in a fully recycled closed fuel cycle. Safe and optimal use of these fuels will require knowledge of their multicomponent phase stability and… more
Date: October 28, 2013
Creator: Morgan, Dane & Yang, Yong Austin
Item Type: Refine your search to only Report
open access

Abortion and Whole Woman's Health v. Hellerstedt

Description: This report examines Whole Woman's Health v. Cole, the Fifth Circuit's decision, as well as the undue burden standard, and the contrasting approaches used by the federal appellate courts to determine whether an abortion regulation imposes an undue burden on a woman's ability to have an abortion.
Date: March 28, 2016
Creator: Shimabukuro, Jon O.
Item Type: Refine your search to only Report
open access

Acoustic Telemetry Evaluation of Juvenile Salmonid Passage and Survival Proportions at John Day Dam, 2009

Description: The overall purpose of the acoustic telemetry study at JDA during 2009 was to determine the best configuration and operation for JDA prior to conducting BiOp performance standard tests. The primary objective was to determine the best operation between 30% and 40% spill treatments. Route-specific and JDA to TDA forebay survival estimates, passage distribution, and timing/behavior metrics were used for comparison of 30% to a 40% spill treatments. A secondary objective was to evaluate the performa… more
Date: September 28, 2011
Creator: Weiland, Mark A.; Ploskey, Gene R.; Hughes, James S.; Deng, Zhiqun; Fu, Tao; Kim, Jin A. et al.
Item Type: Refine your search to only Report
open access

Acquisition Workforce: Federal Agencies Obtain Training to Meet Requirements, but Have Limited Insight into Costs and Benefits of Training Investment

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The Office of Federal Procurement Policy (OFPP) sets standards and policies for the federal acquisition workforce, and has established certification requirements, including minimal training, for the three main acquisition roles--contracting staff, Contracting Officer's Representatives, and Program/Project Managers--to promote the development of government-wide core acquisition competencies and facilitat… more
Date: March 28, 2013
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
open access

Actinic imaging and evaluation of phase structures on EUV lithography masks

Description: The authors describe the implementation of a phase-retrieval algorithm to reconstruct phase and complex amplitude of structures on EUV lithography masks. Many native defects commonly found on EUV reticles are difficult to detect and review accurately because they have a strong phase component. Understanding the complex amplitude of mask features is essential for predictive modeling of defect printability and defect repair. Besides printing in a stepper, the most accurate way to characterize suc… more
Date: September 28, 2010
Creator: Mochi, Iacopo; Goldberg, Kenneth & Huh, Sungmin
Item Type: Refine your search to only Article
open access

Adaptation of a cubic smoothing spline algortihm for multi-channel data stitching at the National Ignition Facility

Description: Some diagnostics at the National Ignition Facility (NIF), including the Gamma Reaction History (GRH) diagnostic, require multiple channels of data to achieve the required dynamic range. These channels need to be stitched together into a single time series, and they may have non-uniform and redundant time samples. We chose to apply the popular cubic smoothing spline technique to our stitching problem because we needed a general non-parametric method. We adapted one of the algorithms in the liter… more
Date: December 28, 2010
Creator: Brown, C; Adcock, A; Azevedo, S; Liebman, J & Bond, E
Item Type: Refine your search to only Article
open access

Adding a MOAB Geometry Interface to SHARP Structural Mechanics

Description: The authors briefly summarize the development of, and test experience with, an initial data interface between the structural mechanics code Diablo and the SHARP reactor simulation system data hub MOAB. That interface has been exercised both to write MOAB databases from Diablo, and then also to use such a database to read in part of a simulation definition for a subsequent Diablo execution. All enhancements are integrated into the central Diablo source repository. The SHARP software system for a… more
Date: May 28, 2012
Creator: Ferencz, R M & Hodge, N E
Item Type: Refine your search to only Report
open access

ADDITIONAL QUADRUPOLES AT CENTER OF LONG STRAIGHTS IN THE NSLS-II LATTICE

Description: The NSLS-II storage ring lattice is comprised of 30 DBA cells arranged in 15 superperiods. There are 15 long straight sections (9.3m) for injection, RF and insertion devices and 15 shorter straights (6.6m) for insertion devices. In the baseline lattice, the short straights have small horizontal and vertical beta functions but the long straights have large horizontal beta function optimized for injection. In this paper, we explore the possibility of installing additional quadrupoles at the cente… more
Date: March 28, 2011
Creator: Lin, F.; Bengtsson, J.; Guo, W.; Krinsky, S.; Li, Y. & Yang, L.
Item Type: Refine your search to only Article
open access

Adjoint sensitivity analysis of an ultrawideband antenna

Description: The frequency domain finite element method using H(curl)-conforming finite elements is a robust technique for full-wave analysis of antennas. As computers become more powerful, it is becoming feasible to not only predict antenna performance, but also to compute sensitivity of antenna performance with respect to multiple parameters. This sensitivity information can then be used for optimization of the design or specification of manufacturing tolerances. In this paper we review the Adjoint Method… more
Date: July 28, 2011
Creator: Stephanson, M. B. & White, D. A.
Item Type: Refine your search to only Article
open access

Administrative Appeals in the Bureau of Land Management and the Forest Service

Description: This report describes Congressional interest in the Bureau of Land Management's (BLM) appeal process due to rumors that it affects the BLM's capacity to handle various resources. Moreover, the report defines what an administrative appeal is, and describes the process required to undertake one. The report also lists the various types of administrative appeals.
Date: March 28, 2012
Creator: Alexander, Katrina
Item Type: Refine your search to only Report
open access

Advanced Gene Editing: CRISPR-Cas9

Description: This report describes a new gene editing technology, known as CRISPR-Cas9, with the potential to revolutionize genetic engineering and the biotechnology industry. The report then provides information on the potential economic benefits of the technology and identifies some issues for congressional consideration, including the regulation of current and future products, national security concerns, and ethical and societal issues surrounding the use of the technology.
Date: April 28, 2017
Creator: Gallo, Marcy E.; Sargent, John F., Jr.; Sarata, Amanda K. & Cowan, Tadlock
Item Type: Refine your search to only Report
open access

Advanced Simulation Capability for Environmental Management (ASCEM) Phase II Demonstration

Description: In 2009, the National Academies of Science (NAS) reviewed and validated the U.S. Department of Energy Office of Environmental Management (EM) Technology Program in its publication, Advice on the Department of Energy’s Cleanup Technology Roadmap: Gaps and Bridges. The NAS report outlined prioritization needs for the Groundwater and Soil Remediation Roadmap, concluded that contaminant behavior in the subsurface is poorly understood, and recommended further research in this area as a high priority… more
Date: September 28, 2012
Creator: Freshley, M.; Hubbard, S.; Flach, G.; Freedman, V.; Agarwal, D.; Andre, B. et al.
Item Type: Refine your search to only Report
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