UNT Libraries Government Documents Department - 1,070 Matching Results

Search Results

Results: 1 - 24 next
open access

A 3.3 MJ, Rb{sup +1} Driver Design Based on an Integrated Systems Analysis

Description: A computer model for systems analysis of heavy ion drivers has been developed and used to evaluate driver designs for inertial fusion energy (IFE). The present work examines a driver for a close-coupled target design that requires less total beam energy but also smaller beam spots sizes than previous target designs. Design parameters and a cost estimate for a 160 beam, 3.3 MJ driver using rubidium ions (A = 85) are reported, and the sensitivity of the results to variations in selected design pa… more
Date: September 15, 2000
Creator: Meier, W. R.; Barnard, J. J. & Bangerter, R. O.
Item Type: Refine your search to only Article
open access

527 Organizations: How the Differences in Tax and Election Laws Permit Certain Organizations to Engage in Issue Advocacy without Public Disclosure and Proposals for Change

Description: Virtually all political organizations are "section 527" political organizations, which means that they are tax-exempt. 527 organizations are created to influence the election or defeat of public officials. This report compares the tax and election laws relating to political organizations and political committees prior to the enactment of P.L. 106-230 in an attempt to highlight the differences between them, and discusses some of the proposals in the 106th Congress to require additional reporting… more
Date: September 7, 2000
Creator: Morris, Marie B.
Item Type: Refine your search to only Report
open access

527 Organizations: How the Differences in Tax and Election Laws Permit Certain Organizations to Engage in Issue Advocacy without Public Disclosure and Proposals for Change

Description: Virtually all political organizations are "section 527" political organizations, which means that they are tax-exempt. 527 organizations are created to influence the election or defeat of public officials. This report compares the tax and election laws relating to political organizations and political committees prior to the enactment of P.L. 106-230 in an attempt to highlight the differences between them, and discusses some of the proposals in the 106th Congress to require additional reporting… more
Date: September 7, 2000
Creator: Morris, Marie B.
Item Type: Refine your search to only Report
open access

527 Organizations: How the Differences in Tax and Election Laws Permit Certain Organizations to Engage in Issue Advocacy without Public Disclosure and Proposals for Change

Description: This report compares the tax and election laws relating to political organizations and political committees prior to the enactment of P.L. 106-230 in an attempt to highlight the differences between them, and discusses some of the proposals in the 106th Congress to require additional reporting by organizations engaging in political activities. This report does not address the taxation of other tax-exempt organizations making political expenditures taxable under IRC § 527. For developments after … more
Date: September 7, 2000
Creator: Morris, Marie B.
Item Type: Refine your search to only Report
open access

1999 Environmental Monitoring Program Report

Description: This report describes the calendar year 1999 compliance monitoring and environmental surveillance activities of the Idaho National Engineering and Environmental Laboratory management and operating contractor Environmental Monitoring Program. This report includes results of sampling performed by the Drinking Water, Effluent, Storm Water, Groundwater Monitoring, and Environmental Surveillance Programs. This report compares the 1999 results to program-specific regulatory guidelines and past data t… more
Date: September 1, 2000
Creator: Street, L. V.
Item Type: Refine your search to only Report
open access

1999 Site Environmental Report

Description: Throughout the scientific community, Brookhaven National Laboratory (BNL) is renowned for its leading-edge research in physics, medicine, chemistry, biology, materials, and the environment. BNL is committed to supporting its world-class scientific research with an internationally recognized environmental protection program. The 1999 Site Environmental Report (SER) summarizes the status of the Laboratory's environmental programs and performance, including the steady progress towards cleaning up … more
Date: September 1, 2000
Creator: Engel-Cox, J.; Zimmerman, E.; Lee, R.; Williams, J.; Green, T.; Paquette, D. et al.
Item Type: Refine your search to only Report
open access

2000 Census: Update on Data Capture Operations and System

Description: Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the Bureau of the Census' progress in: (1) performing first-pass data capture operations, including the performance of the Data Capture System 2000; (DCS) and (2) modifying DCS 2000 to perform planned second-pass data capture operations."
Date: September 29, 2000
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
open access

The 235U(n,2n(gamma)) Yrast Partial Gamma-Ray Cross Sections: A Report on the 1998 -- 1999 GEANIE Data and Analysis Techniques

Description: Measurements of partial {sup 235}U(n,2n{gamma}) {gamma}-ray cross sections have been carried out as a function of incident neutron energy using the GEANIE spectrometer at LANSCE/WNR. The yields of {gamma} rays resulting from the population of discrete levels in the residual nucleus {sup 234}U have been measured at incident neutron energies in the 1-20-MeV range. These data provide, with the aid of nuclear reaction modeling, a measurement of the {sup 235}U(n,2n) reaction cross section and serve … more
Date: September 1, 2000
Creator: Younes, W.; Becker, J. A.; Bernstein, L. A.; Garret, P. E.; McGrath, C. A.; McNabb, D. P. et al.
Item Type: Refine your search to only Report
open access

239Pu(n,2n) 238Pu cross section inferred from IDA calculations and GEANIE measurements

Description: This report presents the latest {sup 239}Pu(n,2n){sup 238}Pu cross sections inferred from calculations performed with the nuclear reaction-modeling code system, IDA, coupled with experimental measurements of partial {gamma}-ray cross sections for incident neutron energies ranging from 5.68 to 17.18 MeV. It is found that the inferred {sup 239}Pu(n,2n){sup 238}Pu cross section peaks at E{sub inc} {approx} 11.4 MeV with a peak value of approximately 326 mb. At E{sub inc} {approx} 14 MeV, the infer… more
Date: September 1, 2000
Creator: Chen, H; Ormand, W E & Dietrich, F S
Item Type: Refine your search to only Report
open access

Abstraction of Seepage into Drifts

Description: A total-system performance assessment (TSPA) for a potential nuclear-waste repository requires an estimate of the amount of water that might contact waste. This paper describes the model used for part of that estimation in a recent TSPA for the Yucca Mountain site. The discussion is limited to estimation of how much water might enter emplacement drifts; additional considerations related to flow within the drifts, and how much water might actually contact waste, are not addressed here. The unsat… more
Date: September 26, 2000
Creator: Wilson, M. L. & Ho, C. K.
Item Type: Refine your search to only Report
open access

Accelerated Closure of the Hanford Site

Description: Cleanup of the Hanford Site is currently planned to take until 2046 and another approximately $SOB. In the summer of 1999, Fluor Hanford initiated an ''Accelerated Closure Team'' to evaluate opportunities to reduce this long schedule and high cost for the parts of the Hanford Site which they manage. To-date, this breakthrough team has developed two approaches which will move > 50 million curies away from the Columbia River sooner than planned and at a significantly reduced cost. The approach… more
Date: September 20, 2000
Creator: WILDE, R.T.
Item Type: Refine your search to only Article
open access

The Accelerated Site Technology Deployment Program/Segmented Gate System Project

Description: The Department of Energy (DOE) is working to accelerate the acceptance and application of innovative technologies that improve the way the nation manages its environmental remediation problems. The DOE Office of Science and Technology established the Accelerated Site Technology Deployment Program (ASTD) to help accelerate the acceptance and implementation of new and innovative soil and ground water remediation technologies. Coordinated by the Department of Energy's Idaho Office, the ASTD Progra… more
Date: September 18, 2000
Creator: PATTESON,RAYMOND
Item Type: Refine your search to only Article
open access

Accelerator system for neutron radiography

Description: The field of x-ray radiography is well established for doing non-destructive evaluation of a vast array of components, assemblies, and objects. While x-rays excel in many radiography applications, their effectiveness diminishes rapidly if the objects of interest are surrounded by thick, high-density materials that strongly attenuate photons. Due to the differences in interaction mechanisms, neutron radiography is highly effective in imaging details inside such objects. To obtain a high intensit… more
Date: September 21, 2000
Creator: Rusnak, B & Hall, J
Item Type: Refine your search to only Article
open access

Accident and Off Normal Response and Recovery from Multi Canister Overpack (MCO) Processing Events

Description: In the process of removing spent nuclear fuel (SNF) from the K Basins through its subsequent packaging, drymg, transportation and storage steps, the SNF Project must be able to respond to all anticipated or foreseeable off-normal and accident events that may occur. Response procedures and recovery plans need to be in place, personnel training established and implemented to ensure the project will be capable of appropriate actions. To establish suitable project planning, these events must first … more
Date: September 19, 2000
Creator: ALDERMAN, C.A.
Item Type: Refine your search to only Report
open access

ACCURATE QUANTIFICATION OF DRIED RESIDUE THIN FILMS USING X-RAY FLUORESCENCE

Description: An XRF specimen preparation method was developed to quantify the concentration of gallium in plutonium metal while minimizing the risk of contaminating the instrument with radioactive material. To ensure that homogeneous specimens are examined, plutonium is dissolved in dilute HCl and HNO{sub 3} prior to analysis. In the preliminary work here, non-radioactive aqueous gallium standards were prepared, and zinc was added as an internal standard to improve the accuracy and precision. Aliquots from … more
Date: September 1, 2000
Creator: Worley Christoper G. & Havrilla George, J.
Item Type: Refine your search to only Article
open access

Achieving Higher Accuracy in the Gamma-Ray Spectrocopic Assay of Holdup

Description: Gamma-ray spectroscopy is an important technique for the measurement of quantities of nuclear material holdup in processing equipment. Because the equipment in large facilities dedicated to uranium isotopic enrichment, uranium/plutonium scrap recovery or various stages of fuel fabrication is extensive, the total holdup may be large by its distribution alone, even if deposit thicknesses are small. Good accountability practices require unbiased measurements with uncertainties that are as small as… more
Date: September 1, 2000
Creator: Russo, P. A.; Wenz, T. R.; Smith, S. E. & Harris, J. F.
Item Type: Refine your search to only Report
open access

Activation of the mercury laser: a diode-pumped solid-state laser driver for inertial fusion

Description: Initial measurements are reported for the Mercury laser system, a scalable driver for rep-rated high energy density physics research. The performance goals include 10% electrical efficiency at 10 Hz and 100 J with a 2-10 ns pulse length.
Date: September 19, 2000
Creator: Bayramian, A. J.; Bibeau, C.; Beach, R. J.; Ebbers, C. A.; Kanz, K.; Nakano, H. et al.
Item Type: Refine your search to only Article
Back to Top of Screen