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Test report for cesium powder and pellets inner container decontamination method determination test

Description: This report documents the decontamination method determination testing that was performed on three cesium powder and pellets inner container test specimens The test specimens were provided by B and W Hanford Company (BVMC). The tests were conducted by the Numatec Hanford Company (NHC), in the 305 Building. Photographic evidence was also provided by NHC. The Test Plan and Test Report were provided by Waste Management Federal Services, Inc., Northwest Operations. Witnesses to testing included a t… more
Date: August 17, 1998
Creator: Kelly, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The effects of confinement and temperature on the shock sensitivity of solid explosives

Description: The effects of heavy steel confinement on the shock sensitivity of pressed solid high explosives heated to temperatures close to thermal explosion conditions were quantitatively measured. Cylindrical flyer plates accelerated by a 101 mm diameter gas gun impacted preheated explosive charges containing multiple embedded manganin pressure gauges. The high explosive compositions tested were LX-04-01 (85 wt.% HMX and 15 wt.% Viton A) heated to 170 ° C and LX-17 (92.5 wt.% TATB and 7.5 wt.% Kel-F… more
Date: August 17, 1998
Creator: Forbes, J W; Tarver, C M & Urtiew, Garcia, F
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Self-dual nonsupersymmetric Type II String Compactifications

Description: It has recently been proposed that certain nonsupersymmetric type II orbifolds have vanishing perturbative contributions to the cosmological constant. We show that techniques of Sen and Vafa allow one to construct dual type II descriptions of these models (some of which have no weakly coupled heterotic dual). The dual type II models are given by the same orbifolds with the string coupling S and a T{sup 2} volume T exchanged. This allows us to argue that in various strongly coupled limits of the… more
Date: August 17, 1998
Creator: Kachru, Shamit & Silverstein, Eva
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Low amplitude impact testing and analysis of pristine and aged solid high explosives

Description: The critical impact velocities of 60.1 mm diameter blunt steel projectiles required for ignition of exothermic chemical reaction were determined for heavily confined charges of new and aged (15-30 years) solid HMX-based high explosives. The explosives in order of decreasing impact sensitivity were: PBX 9404; LX-lo; LX-14; PBX 9501; and LX-04. Embedded pressure gauges measured the interior pressure histories. Stockpile aged LX-04 and PBX 9501 from dismantled units were tested and compared to fre… more
Date: August 17, 1998
Creator: Chidester, S K; Garza, R & Tarver, C M
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Bush]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: August 17, 1998, 12:00 p.m.
Duration: 26 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Bush]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: August 17, 1998, 12:00 p.m.
Duration: 53 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections

Vice President Gore's National Partnership for Reinventing Government

Description: The National Partnership for Reinventing Government (NPR), originally the National Performance Review, was the Clinton-Gore Administration's interagency task force to reform and streamline the way the federal government works. It was the eleventh federal reform effort in the twentieth century. In creating NPR on March 3, 1993, President Clinton said: “Our goal is to make the entire federal government less expensive and more efficient, and to change the culture of our national bureaucracy away f… more
Date: August 17, 1998
Creator: National Partnership for Reinventing Government
Item Type: Refine your search to only Website
Partner: UNT Libraries Government Documents Department
open access

Reactions of oxides of nitrogen (NO{sub x}) leading to the formation of nitric acid (HNO{sub 3}) in non-thermal plasmas (NTPs). White paper for the Strategic Environmental Research and Development Program (SERDP) (Compliance Project CP-1038: Development of non-thermal plasma reactor technology for control of atmospheric emissions)

Description: SERDP Compliance Project CP-1038 (Development of Non-Thermal Plasma Reactor Technology for Control of Atmospheric Emissions) has been commissioned to evaluate and develop non-thermal plasma (NTP) reactor technology, a form of low-temperature plasma chemical processing, for Department of Defense (DoD) applications. The primary emphasis is on the control of emissions of oxides of nitrogen (NO{sub x}), with a secondary emphasis on hazardous air pollutant (HAP) emission control (primarily volatile … more
Date: August 17, 1998
Creator: Rosocha, L. A.; Miziolek, A. W.; Nusca, M. J.; Chang, J. S. & Herron, J. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of market penetration scenarios of clean coal technologies in China using the LLNL China Energy Model

Description: This paper presents the results of an analysis of the market penetration of Clean Coal Technologies in the electric utility market in China. The analysis is based on a model of the Chinese energy system developed at Lawrence Livermore National Laboratory. Under this model, the market penetration of a technology depends on the relative prices of all technologies in a market. The model assumes that for each technology there is a distribution of effective prices to the consumers in the market plac… more
Date: August 17, 1998
Creator: Lamont, A
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurements of ionospheric effects on wideband signals at VHF

Description: Radars operating at very high frequency (VHF) have enhanced foliage and ground penetration compared to radars operated at higher frequencies. For example, VHF systems operated from airplanes have been used as synthetic aperture radars (SAR); a satellite-borne VHF SAR would have considerable utility. In order to operate with high resolution it would have to use both a large relative bandwidth and a large aperture. A satellite-borne radar would likely have to operate at altitudes above the maximu… more
Date: August 17, 1998
Creator: Fitzgerald, T.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

From double exchange to superexchange in charge ordering perovskite manganites

Description: The authors found dynamic ferromagnetic correlations at the room temperature in perovskite manganites which have an antiferromagnetic insulating ground state. They are replaced by antiferromagnetic correlations when the electrons order. The results indicate that the double exchange mechanism is turned off by electron localization at low temperatures.
Date: August 17, 1998
Creator: Bao, W.; Axe, J. D.; Chen, C. H.; Cheong, S. W.; Schiffer, P. & Roy, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Improvements on the accuracy of beam bugs

Description: At LLNL resistive wall monitors are used to measure the current and position used on ETA-II show a droop in signal due to a fast redistribution time constant of the signals. This paper presents the analysis and experimental test of the beam bugs used for beam current and position measurements in and after the fast kicker. It concludes with an outline of present and future changes that can be made to improve the accuracy of these beam bugs. of intense electron beams in electron induction linacs … more
Date: August 17, 1998
Creator: Chen, Y. J. & Fessenden, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Pulse propagation in inhomogeneous optical waveguides. Final report, September 15, 1992--March 14, 1996

Description: Accomplishments include two Ph.D. dissertations, twenty-six archival journal publications that have appeared in print, six articles that have appeared in conference or summer school proceedings, sixteen regular conference presentations, and eleven invited conference presentations. A complete record of the publications and presentations may be found in Sec. II.E. The areas in which the author has been working--randomly varying optical fiber birefringence, passively modelocked lasers, and quasi-p… more
Date: August 17, 1998
Creator: Menyuk, C.R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The National Ignition Facility (NIF) Wavefront Control System

Description: A wavefront control system will be employed on NIF to correct beam aberrations that otherwise would limit the minimum target focal spot size. For most applications, NIF requires a focal spot that is a few times the diffraction limit. Sources of aberrations that must be corrected include prompt pump-induced distortions in the laser slabs, thermal distortions in the laser slabs from previous shots, manufacturing figure errors in the optics, beam off-axis effects, gas density variations, and gravi… more
Date: August 17, 1998
Creator: Zacharias, Richard; Bliss, Erlan; Feldman, Mark; Gray, Andrew; Henesian, Mark; Koch, Jeff et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

First Lasing of the Regenerative Amplifier FEL

Description: The Regenerative Amplifier Free-Electron Laser (RAFEL) is a high-gain RF-linac FEL capable of producing high optical power from a compact design. The combination of a high-gain and small optical feedback enables the FEL to reach saturation and produce a high optical power and high extraction efficiency without risk of optical damage to the mirrors. This paper summarizes the first lasing of the Regenerative Amplifier FEL and describes recent experimental results. The highest optical energy achie… more
Date: August 17, 1998
Creator: Nguyen, D. C.; Sheffield, R. L.; Fortang, C. M.; Goldstein, J. C.; Kinross-Wright, J. M. & Ebrahim, N. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Focused Ion beam source method and Apparatus

Description: A focused ion beam having a cross section of submicron diameter, a high ion current, and a narrow energy range is generated from a target comprised of particle source material by laser ablation. The method involves directing a laser beam having a cross section of critical diameter onto the target, producing a cloud of laser ablated particles having unique characteristics, and extracting and focusing a charged particle beam from the laser ablated cloud. The method is especially suited for produc… more
Date: August 17, 1998
Creator: Pellin, Michael J.; Lykke, Keith R. & Lill, Thorsten B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
open access

Application of adaptive optics for controlling the NIF laser performance and spot size

Description: The National Ignition Facility (NIF) laser will use a 192-beam multi-pass architecture capable of delivering several MJ of UV energy in temporal pulse formats varying from sub-ns square to 20 ns precisely-defined high-contrast shapes. Each beam wavefront will be subjected to effects of optics inhomogeneities, figuring errors, mounting distortions, prompt and slow thermal effects from flashlamps, driven and passive air-path turbulence, and gravity-driven deformations. A 39-actuator intra-cavity … more
Date: August 17, 1998
Creator: Auerbach, J.; Bliss, E.; Henesian, M.; Lawson, J.; Manes, K.; Renard, P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Faraday cup measurements of the plasma plume produced at an x-ray converter

Description: The next generation of radiographic machines based on induction accelerators is expected to generate multiple, small diameter x-ray spots of high intensity. Experiments to study the interaction of the electron beam with the x-ray converter are being performed at the Lawrence Livermore National Laboratory (LLNL) using the 6-MeV, 2-kA Experimental Test Accelerator (ETA) electron beam. The physics issues of greatest concern can be separated into two categories. The multiple pulse issue involves th… more
Date: August 17, 1998
Creator: Garcia, M; Houck, T L & Sampayan, S E
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department

Oral History Interview with Elmer Wulf, August 17, 1998

Description: Interview with Elmer Wulf, businessman and U.S. Army Air Forces WWII veteran (535th Squadron, 381st Bomb Group, 1st Air Division, 8th Air Force), about his experiences as a B-17 pilot in the European Theater during World War II. Appendix includes two photocopies from an unknown book and two photocopies giving information on the B-17.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: August 17, 1998
Creator: Lane, Peter; Byrd, Richard W. & Wulf, Elmer
Item Type: Refine your search to only Book
Partner: UNT Oral History Program
captions transcript

[News Clip: Political impact]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: August 17, 1998, 10:00 p.m.
Duration: 1 minute 36 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Modeling thermally driven energetic response of high explosives

Description: We have improved our ability to model the response of energetic materials to thermal stimuli and the processes involved in the energetic response. Traditionally, the analyses of energetic materials have involved coupled thermal transport/chemical reaction codes. This provides only a reasonable estimate of the time and location of ensuing rapid reaction. To predict the violence of the reaction, the mechanical motion must be included in the wide range of time scales associated with the thermal ha… more
Date: August 17, 1998
Creator: Couch, R.; McCallen, R. C.; Nichols, A. L., III; Otero, I. & Sharp, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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