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open access

ERL R&D: Laser and Laser Light Transport

Description: Operation of the photocathode gun in the ERL requires that a tightly controlled optical pulse train, consisting of temporally and spatially shaped pulses, be delivered at the photocathode in synchrony with the RF field in the gun cavity. The pulse train must also be dynamically variable, in order to tune or ramp up the current in the ERL. A laser was developed especially for this task by Lumera Laser GmbH, of Kaiserslautern Germany, under design supervision and review of the ERL project. Follow… more
Date: January 1, 2010
Creator: Sheehy, B.
open access

Estimates of the long-term U.S. economic impacts of global climate change-induced drought.

Description: While climate-change models have done a reasonable job of forecasting changes in global climate conditions over the past decades, recent data indicate that actual climate change may be much more severe. To better understand some of the potential economic impacts of these severe climate changes, Sandia economists estimated the impacts to the U.S. economy of climate change-induced impacts to U.S. precipitation over the 2010 to 2050 time period. The economists developed an impact methodology that … more
Date: January 1, 2010
Creator: Ehlen, Mark Andrew; Loose, Verne W.; Warren, Drake E. & Vargas, Vanessa N.
open access

Fifth Annual Report: 2008 Pre-Construction Eelgrass Monitoring and Propagation for King County Outfall Mitigation

Description: This is the fifth and final report in a series documenting progress of the pre-construction eelgrass restoration and mitigation activities for the proposed King County Brightwater marine outfall, discharging to Puget Sound near Point Wells, Washington. King County began implementing a multiyear eelgrass monitoring and restoration program in 2004, with the primary goal of returning intertidal and shallow subtidal habitat and eelgrass to pre-construction conditions, after construction of the outf… more
Date: January 1, 2010
Creator: Woodruff, Dana L.; Judd, Chaeli; Thom, Ronald M.; Sather, Nichole K. & Kaufmann, Ronald M.
open access

Framework for State-Level Renewable Energy Market Potential Studies

Description: State-level policymakers are relying on estimates of the market potential for renewable energy resources as they set goals and develop policies to accelerate the development of these resources. Therefore, accuracy of such estimates should be understood and possibly improved to appropriately support these decisions. This document provides a framework and next steps for state officials who require estimates of renewable energy market potential. The report gives insight into how to conduct a marke… more
Date: January 1, 2010
Creator: Kreycik, C.; Vimmerstedt, L. & Doris, E.
open access

A fundamentally new approach to air-cooled heat exchangers.

Description: We describe breakthrough results obtained in a feasibility study of a fundamentally new architecture for air-cooled heat exchangers. A longstanding but largely unrealized opportunity in energy efficiency concerns the performance of air-cooled heat exchangers used in air conditioners, heat pumps, and refrigeration equipment. In the case of residential air conditioners, for example, the typical performance of the air cooled heat exchangers used for condensers and evaporators is at best marginal f… more
Date: January 1, 2010
Creator: Koplow, Jeffrey P.
open access

FY-09 Summary Report to the Office of Petroleum Reserves on the Western Energy Corridor Initiative Activities and Accomplishments

Description: To meet its programmatic obligations under the Energy Policy Act of 2005, the Office of Naval Petroleum and Shale Oil Reserves (NPSOR) has initiated the Western Energy Corridor Initiative (WECI). The WECI will implement the Unconventional Strategic Fuels Task Force recommendations for accelerating and promoting the development of domestic unconventional fuels to help meet the nations’ energy needs. The mission of the WECI is to bolster America’s future fuel security by facilitating socially and… more
Date: January 1, 2010
Creator: Wood, Thomas R.
open access

Gatling gun: high average polarized current injector for eRHIC

Description: This idea was originally developed in 2001 for, at that time, an ERL-based (and later recirculating-ring) electron-ion collider at JLab. Naturally the same idea is applicable for any gun requiring current exceeding capability of a single cathode. ERL-based eRHIC is one of such cases. This note related to eRHIC was prepared at Duke University in February 2003. In many case photo-injectors can have a limited average current - it is especially true about polarized photo-guns. It is know that e-RHI… more
Date: January 1, 2010
Creator: Litvinenko, V. N.
open access

Guide to Operating and Maintaining EnergySmart Schools

Description: Through a commitment to high performance, school districts are discovering that smart energy choices can create lasting benefits for students, communities, and the environment. For example, an energy efficient school district with 4,000 students can save as much as $160,000 a year in energy costs. Over 10 years, those savings can reach $1.6 million, translating into the ability to hire more teachers, purchase more textbooks and computers, or invest in additional high performance facilities. Bey… more
Date: January 1, 2010
open access

Hanford External Dosimetry Technical Basis Manual PNL-MA-842

Description: The Hanford External Dosimetry Technical Basis Manual PNL-MA-842 documents the design and implementation of the external dosimetry system used at Hanford. The manual describes the dosimeter design, processing protocols, dose calculation methodology, radiation fields encountered, dosimeter response characteristics, limitations of dosimeter design under field conditions, and makes recommendations for effective use of the dosimeters in the field. The manual describes the technical basis for the do… more
Date: January 1, 2010
Creator: Rathbone, Bruce A.
open access

Hanford Tank Farms Waste Certification Flow Loop Test Plan

Description: A future requirement of Hanford Tank Farm operations will involve transfer of wastes from double shell tanks to the Waste Treatment Plant. As the U.S. Department of Energy contractor for Tank Farm Operations, Washington River Protection Solutions anticipates the need to certify that waste transfers comply with contractual requirements. This test plan describes the approach for evaluating several instruments that have potential to detect the onset of flow stratification and critical suspension v… more
Date: January 1, 2010
Creator: Bamberger, Judith A.; Meyer, Perry A.; Scott, Paul A.; Adkins, Harold E.; Wells, Beric E.; Blanchard, Jeremy et al.
open access

Health Effects from Advanced Combustion and Fuel Technologies

Description: This document requires a separate file for the figures. It is for DOE's Office of Vehicle Technologies Annual Report
Date: January 1, 2010
Creator: Barone, Teresa L.; Parks, James E., Jr.; Lewis, Samuel Arthur, Sr. & Connatser, Raynella M.
open access

Imaging doped silicon test structures using low energy electron microscopy.

Description: This document is the final SAND Report for the LDRD Project 105877 - 'Novel Diagnostic for Advanced Measurements of Semiconductor Devices Exposed to Adverse Environments' - funded through the Nanoscience to Microsystems investment area. Along with the continuous decrease in the feature size of semiconductor device structures comes a growing need for inspection tools with high spatial resolution and high sample throughput. Ideally, such tools should be able to characterize both the surface morph… more
Date: January 1, 2010
Creator: Nakakura, Craig Yoshimi; Anderson, Meredith Lynn & Kellogg, Gary Lee
open access

In-Situ Measurements of Low Enrichment Uranium Holdup Process Gas Piping at K-25 - Paper for Waste Management Symposia 2010 East Tennessee Technology Park Oak Ridge, Tennessee

Description: This document is the final version of a paper submitted to the Waste Management Symposia, Phoenix, 2010, abstract BJC/OR-3280. The primary document from which this paper was condensed is In-Situ Measurement of Low Enrichment Uranium Holdup in Process Gas Piping at K-25 Using NaI/HMS4 Gamma Detection Systems, BJC/OR-3355. This work explores the sufficiency and limitations of the Holdup Measurement System 4 (HJVIS4) software algorithms applied to measurements of low enriched uranium holdup in gas… more
Date: January 1, 2010
Creator: B., Rasmussen
open access

International Clean Energy Analysis Gateway: Assisting Developing Countries with Clean Energy Deployment (Fact Sheet)

Description: The International Clean Energy Analysis Gateway seeks to enhance developing country access to energy efficiency and renewable energy analysis tools, databases, methods, and other technical resources in a dynamic user interaction environment. In addition to providing information on available tools, the gateway also is a platform for Web seminars, online training, peer networks, and expert assistance. The gateway is sponsored by the U.S. Department of Energy (DOE) and the United Nations Industria… more
Date: January 1, 2010
open access

Lightweight storage and overlay networks for fault tolerance.

Description: The next generation of capability-class, massively parallel processing (MPP) systems is expected to have hundreds of thousands to millions of processors, In such environments, it is critical to have fault-tolerance mechanisms, including checkpoint/restart, that scale with the size of applications and the percentage of the system on which the applications execute. For application-driven, periodic checkpoint operations, the state-of-the-art does not provide a scalable solution. For example, on to… more
Date: January 1, 2010
Creator: Oldfield, Ron A.
open access

Linux OS Jitter Measurements at Large Node Counts using a BlueGene/L

Description: We present experimental results for a coordinated scheduling implementation of the Linux operating system. Results were collected on an IBM Blue Gene/L machine at scales up to 16K nodes. Our results indicate coordinated scheduling was able to provide a dramatic improvement in scaling performance for two applications characterized as bulk synchronous parallel programs.
Date: January 1, 2010
Creator: Jones, Terry R; Tauferner, Mr. Andrew & Inglett, Mr. Todd
open access

Measurements with Pinhole and Coded Aperture Gamma-Ray Imaging Systems

Description: From a safeguards perspective, gamma-ray imaging has the potential to reduce manpower and cost for effectively locating and monitoring special nuclear material. The purpose of this project was to investigate the performance of pinhole and coded aperture gamma-ray imaging systems at Oak Ridge National Laboratory (ORNL). With the aid of the European Commission Joint Research Centre (JRC), radiometric data will be combined with scans from a three-dimensional design information verification (3D-DIV… more
Date: January 2010
Creator: Raffo-Caiado, Ana Claudia; Solodov, Alexander A.; Abdul-Jabbar, Najeb M.; Hayward, Jason P. & Ziock, Klaus-Peter
open access

NREL's Wind R&D Success Stories, National Wind Technology Center (NWTC) (Fact Sheet)

Description: Wind energy research, development, and deployment have reduced the cost of large and small wind turbine technologies, increased wind energy system reliability and operability, lowered risk by validating performance and design, increased the understanding of the true impacts of wind energy on the U.S. electrical infrastructure, and expanded wind energy markets. A synopsis of research conducted on utility-scale wind turbines, small wind turbines, software, components, market development and grid … more
Date: January 1, 2010
open access

Parallel algorithm strategies for circuit simulation.

Description: Circuit simulation tools (e.g., SPICE) have become invaluable in the development and design of electronic circuits. However, they have been pushed to their performance limits in addressing circuit design challenges that come from the technology drivers of smaller feature scales and higher integration. Improving the performance of circuit simulation tools through exploiting new opportunities in widely-available multi-processor architectures is a logical next step. Unfortunately, not all traditio… more
Date: January 1, 2010
Creator: Thornquist, Heidi K.; Schiek, Richard Louis & Keiter, Eric Richard
open access

Phase II Transport Model of Corrective Action Unit 98: Frenchman Flat, Nevada Test Site, Nye County, Nevada, Revision 1

Description: This document, the Phase II Frenchman Flat transport report, presents the results of radionuclide transport simulations that incorporate groundwater radionuclide transport model statistical and structural uncertainty, and lead to forecasts of the contaminant boundary (CB) for a set of representative models from an ensemble of possible models. This work, as described in the Federal Facility Agreement and Consent Order (FFACO) Underground Test Area (UGTA) strategy (FFACO, 1996; amended 2010), for… more
Date: January 1, 2010
Creator: Ruskuaff, Gregg
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