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Measured data used in the Watusi cross-section sets

Description: In this document we list the experimental data that were used to make up the major cross- section sets that we use in the Watusi code to calculate the amount of detector activation in device tests. In order to use experimental data to make up a cross-section set, it is often necessary to extrapolate the cross sections down to either the threshold energy or to 0.01 keV, and to extrapolate up to 20 MeV. We then fit the data to a function so that we can get a smoothed set of interpolated values at… more
Date: February 9, 1999
Creator: Nethaway, D. R. & Mustafa, M. G.
Partner: UNT Libraries Government Documents Department
open access

New Development in WARP: Progress Toward End-to-End Simulation

Description: The development of a high current, heavy-ion beam driver for inertial confinement fusion requires a detailed understanding of the behavior of the beam, including effects of the strong self-fields. The necessity of including the self-fields of the beam makes particle-in-cell (PIC) simulation techniques ideal, and for this reason, the multi-dimensional PIC/accelerator code WARP has been developed. WARP has been used extensively to study the creation and propagation of ion beams both in experiment… more
Date: November 7, 1997
Creator: Grote, D. P.; Friedman, A.; Haber, I.; Fawley, W. & Luc Vay, J.
Partner: UNT Libraries Government Documents Department
open access

Fatigue damage estimate comparisons for northern European and U.S. wind farm loading environments

Description: Typical loading histories associated with wind turbine service environments in northern Europe and within a large wind farm in the continental US were recently compared by Kelley (1995) using the WISPER [Ten Have, 1992] loading standard and its development protocol. In this study, an equivalent load spectrum for a US wind farm was developed by applying the WISPER development protocol to representative service load histories collected from two adjacent turbines operating within a large wind farm… more
Date: May 1, 1995
Creator: Sutherland, H.J. & Kelley, N.D.
Partner: UNT Libraries Government Documents Department
open access

Development of a next-generation regional weather research and forecast model.

Description: The Weather Research and Forecast (WRF) project is a multi-institutional effort to develop an advanced mesoscale forecast and data assimilation system that is accurate, efficient, and scalable across a range of scales and over a host of computer platforms. The first release, WRF 1.0, was November 30, 2000, with operational deployment targeted for the 2004-05 time frame. This paper provides an overview of the project and current status of the WRF development effort in the areas of numerics and p… more
Date: February 5, 2001
Creator: Michalakes, J.; Chen, S.; Dudhia, J.; Hart, L.; Klemp, J.; Middlecoff, J. et al.
Partner: UNT Libraries Government Documents Department
open access

Windows NT Workstation Performance Evaluation Based on Pro/E 2000i BENCHMARK

Description: A performance evaluation of several computers was necessary, so an evaluation program, or benchmark, was run on each computer to determine maximum possible performance. The program was used to test the Computer Aided Drafting (CAD) ability of each computer by monitoring the speed with which several functions were executed. The main objective of the benchmarking program was to record assembly loading times and image regeneration times and then compile a composite score that could be compared wit… more
Date: August 2, 2000
Creator: DAVIS,SEAN M.
Partner: UNT Libraries Government Documents Department
open access

Accelerator waveform synthesis and longitudinal beam dynamics in a small induction recirculator

Description: A recirculating induction accelerator requires accelerating waveforms that produce current amplification and provide bunch length control throughout the acceleration process. Current amplification occurs because of both an increase in the beam velocity and a shortening of the length of the beam bunch. The pulsed acceleration and control waveforms seen by the beam change in time as the pulse duration shortens. For one acceleration cycle of the small recirculator, each accelerating gap is driven … more
Date: April 1995
Creator: Fessenden, T. J.; Grote, D. P. & Sharp, W. M.
Partner: UNT Libraries Government Documents Department
open access

Workforce planning for reconfiguration and downsizing

Description: The Pacific Northwest Laboratory was tasked by the Department of Energy Albuquerque Field Office (DOE-AL) to develop a workforce assessment and transition planning tool to support integrated decision making at a single DOE installation. The planning tool permits coordinated, integrated workforce planning to manage growth, decline, or transition within a DOE installation. The tool enhances the links and provides commonality between strategic, programmatic, and operations planners and human resou… more
Date: November 1, 1993
Creator: Stahlman, E. J.; Lewis, R. E. & Ross, T. L.
Partner: UNT Libraries Government Documents Department
open access

New methods in WARP, a particle-in-cell code for space-charge dominated beams

Description: The current U.S. approach for a driver for inertial confinement fusion power production is a heavy-ion induction accelerator; high-current beams of heavy ions are focused onto the fusion target. The space-charge of the high-current beams affects the behavior more strongly than does the temperature (the beams are described as being ``space-charge dominated``) and the beams behave like non-neutral plasmas. The particle simulation code WARP has been developed and used to study the transport and ac… more
Date: January 12, 1998
Creator: Grote, D., LLNL
Partner: UNT Libraries Government Documents Department
open access

Three dimensional simulations of space charge dominated heavy ion beams with applications to inertial fusion energy

Description: Heavy ion fusion requires injection, transport and acceleration of high current beams. Detailed simulation of such beams requires fully self-consistent space charge fields and three dimensions. WARP3D, developed for this purpose, is a particle-in-cell plasma simulation code optimized to work within the framework of an accelerator`s lattice of accelerating, focusing, and bending elements. The code has been used to study several test problems and for simulations and design of experiments. Two app… more
Date: November 1, 1994
Creator: Grote, D. P.
Partner: UNT Libraries Government Documents Department
open access

Matching grant program for university nuclear engineering education

Description: The grant augmented funds from Westinghouse Electric Co. to enhance the Nuclear Engineering program at KSU. The program was designed to provide educational opportunities and to train engineers for careers in the nuclear industry. It provided funding and access to Westinghouse proprietary design codes for graduate and undergraduate studies on topics of current industrial importance. Students had the opportunity to use some of the most advanced nuclear design tools in the industry and to work on … more
Date: October 16, 2002
Creator: Bajorek, Stephen M.
Partner: UNT Libraries Government Documents Department
open access

Improving systems documentation using an online copy editor

Description: For the last three years the author has been using Writers Workbench, a UNIX text-editing tool, to edit computer documentation. In this article the author outlines his experiences using the system, noting both the advantages to explore and pitfalls to avoid in using this tool. Writers Workbench is especially useful for improving a writer's basic skills - punctuation, spelling, and grammar. When used effectively, Writers Workbench can cut down on wordiness and improve the consistency of a manual… more
Date: January 1, 1985
Creator: Kahn, R. L.
Partner: UNT Libraries Government Documents Department
open access

Methods used in WARP3d, a three-dimensional PIC/accelerator code

Description: WARP-3d(1,2), a three-dimensional PIC/accelerator code, has been developed over several years and has played a major role in the design and analysis of space-charge dominated beam experiments being carried out by the heavy-ion fusion programs at LLNL and LBNL. Major features of the code will be reviewed, including: residence corrections which allow large timesteps to be taken, electrostatic field solution with subgrid scale resolution of internal conductor boundaries, and a beat beam algorithm.… more
Date: February 28, 1997
Creator: Grote, D. P.; Friedman, A. & Haber, I.
Partner: UNT Libraries Government Documents Department
open access

Optical Data Library {number_sign}5 for use with the WINDOW 4.1 computer program including NFRC certified data

Description: This report contains additional data for 783 glazing products that can be used with the Window 4.1 energy analysis program. The NFRC requires that all simulations must be carried out using NFRC-certified optical data only. Solar heat gain coefficient and visible transmittance must be calculated using spectral transmittance and reflectance in the solar range. U-factor calculations must use spectral or integrated emittance. NFRC-certified data within the Window 4.1 program is indicated.
Date: January 1, 1998
Creator: Rubin, M.
Partner: UNT Libraries Government Documents Department
open access

WindoWorks: A flexible program for computerized testing of accelerator control system electronic circuit boards

Description: Since most accelerator control system circuit boards reside in a commercial bus architecture, such as CAMAC or VMEbus, a computerized test station is needed for exercising the boards. This test station is needed for the development of newly designed prototypes, for commissioning newly manufactured boards, for diagnosing boards which have failed in service, and for long term testing of boards with intermittent failure problems. WindoWorks was created to address these needs. It is a flexible prog… more
Date: September 1, 1993
Creator: Utterback, J.
Partner: UNT Libraries Government Documents Department
open access

State-of-the-art software for window energy-efficiency rating and labeling

Description: Measuring the thermal performance of windows in typical residential buildings is an expensive proposition. Not only is laboratory testing expensive, but each window manufacturer typically offers hundreds of individual products, each of which has different thermal performance properties. With over a thousand window manufacturers nationally, a testing-based rating system would be prohibitively expensive to the industry and to consumers. Beginning in the early 1990s, simulation software began to b… more
Date: July 1, 1998
Creator: Arasteh, D.; Finlayson, E.; Huang, J.; Mitchell, R.; Rubin, M. & Huizenga, C.
Partner: UNT Libraries Government Documents Department
open access

A summary of recent refinements to the WAKE dispersion model, a component of the HGSYSTEM/UF{sub 6} model suite

Description: The original WAKE dispersion model a component of the HGSYSTEM/UF{sub 6} model suite, is based on Shell Research Ltd.`s HGSYSTEM Version 3.0 and was developed by the US Department of Energy for use in estimating downwind dispersion of materials due to accidental releases from gaseous diffusion plant (GDP) process buildings. The model is applicable to scenarios involving both ground-level and elevated releases into building wake cavities of non-reactive plumes that are either neutrally or positi… more
Date: August 1, 1998
Creator: Yambert, M.W.; Lombardi, D.A.; Goode, W.D. Jr. & Bloom, S.G.
Partner: UNT Libraries Government Documents Department
open access

Computer simulation and capacity evaluation of Panama Canal alternatives

Description: The Operating Characteristics and Capacity Evaluation (OCCE) Study was one of the components of a group of studies of future alternatives to the Panama Canal, sponsored by a study commission formed by the governments of Panama, the US and Japan. The basic tool in the conduct of the study was the Waterway Analysis Model (WAM), developed originally by the US Army Corps of Engineers for use on the US inland waterway system and adapted under OCCE for study of Panama Canal alternatives. The study sy… more
Date: December 31, 1994
Creator: Rosselli, A. T.; Bronzini, M. S. & Weekly, D. A.
Partner: UNT Libraries Government Documents Department
open access

Implementing a computing architecture with WISDOM

Description: Over the past two years, the Savannah River Site (SRS) work force has expanded by more than 6000 employees. This large influx of personnel, in conjunction with the limited office space, has resulted in an overcrowding problem on site. To alleviate some of the overcrowding, Westinghouse Savannah River Company (WSRC) has been in the process of leasing space from several office buildings within Aiken, SC. Brookhaven, the latest off-site office building to be leased, is the starting point for a new… more
Date: December 31, 1991
Creator: Zebrowski, J. R.
Partner: UNT Libraries Government Documents Department
open access

Windows Calorimeter Control (WinCal) program computer software design description

Description: The Windows Calorimeter Control (WinCal) Program System Design Description contains a discussion of the design details for the WinCal product. Information in this document will assist a developer in maintaining the WinCal system. The content of this document follows the guidance in WHC-CM-3-10, Software Engineering Standards, Standard for Software User Documentation.
Date: March 26, 1997
Creator: Pertzborn, N.F.
Partner: UNT Libraries Government Documents Department
open access

Benchmarking WASP5 with data from the 1991 K-Reactor tritiated aqueous release incident

Description: The Savannah River Site (SRS) has upgraded its aqueous emergency response capability to model the transport of pollutants released from SRS facilities during normal operation or accidents through onsite streams to the Savannah River. The transport and dispersion modules from the US Environmental Protection Agency (EPA) WASP5 model were incorporated into the SRS emergency response system, called the Weather Information and Display (WIND) System. WASP5 is a water quality analysis program that sim… more
Date: November 7, 1996
Creator: Chen, K.F.
Partner: UNT Libraries Government Documents Department
open access

Overview of the WARP code and studies of transverse resonance effects

Description: Two papers presented at the Shelter Island workshop are very briefly summarized here, in view of recent publications elsewhere The WARP code, developed for Heavy-Ion beam-driven inertial confinement Fusion (HIF) accelerator studies, combines features of a particle-in-cell plasma simulation and an accelerator tracking program. Its methods and architecture have been developed for efficiency both in detailed simulation of individual machine sections and in long-time beam tracking. The transverse `… more
Date: May 1, 1998
Creator: Friedman, A., LLNL
Partner: UNT Libraries Government Documents Department
open access

Simulations of longitudinal beam dynamics of space-charge dominated beams for heavy ion fusion

Description: The longitudinal instability has potentially disastrous effects on the ion beams used for heavy ion driven inertial confinement fusion. This instability is a {open_quotes}resistive wall{close_quotes} instability with the impedance coining from the induction modules in the accelerator used as a driver. This instability can greatly amplify perturbations launched from the beam head and can prevent focusing of the beam onto the small spot necessary for fusion. This instability has been studied usin… more
Date: December 1, 1994
Creator: Miller, D.A.C.
Partner: UNT Libraries Government Documents Department
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