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Environmental report 1998, executive summary

Description: Lawrence Livermore National Laboratory (LLNL), a U.S. Department of Energy (DOE) facility operated by the University of California, serves as a national resource of scientific, technical, and engineering capabilities. The Laboratory's mission focuses on nuclear weapons and national security, and over the years has been broadened to include areas such as strategic defense, energy, the environment, biomedicine, technology transfer, the economy, and education. The Laboratory carries out this missi… more
Date: September 22, 1999
Creator: Larson, J. M.; Harrach, R. J.; Althouse, P. E.; Bertoldo, N. A.; Biermann, A. H.; Blake, R. G. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Current status of the recirculator project at LLNL

Description: The Heavy Ion Fusion Group at Lawrence Livermore National Laboratory has for several years been developing the world's first circular ion induction accelerator designed to transport space charge dominated beams. Currently, the machine extends to 90 degrees, or 10 half-lattice periods (HLP) with induction cores for acceleration placed on every other HLP. Full current transport with acceptable emittance growth without acceleration has been achieved. Recently, a time stability measurement revealed… more
Date: March 23, 1999
Creator: Ahle, L; Autrey, D; Barnard, J; Craig, G; Debeling, A; Eylon, S et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Molecular Profiling of Microbial Communities from Contaminated

Description: The major objective of the research is to provide appropriate sequences and to assemble a high density DNA array of oligonucleotides that can be used for rapid profiling of microbial populations, from polluted areas and from areas of other interest. The sequences to be assigned to the DNA array are chosen from cloned genomic DNA from groundwater at DOE sites containing organic solvents. The sites, Hanford Nuclear Plant and Lawrence Livermore Site 300 (LLNL), have well characterized pollutant hi… more
Date: June 1, 1999
Creator: Robb, Frank T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chaotic-Dynamical Conceptual Model to Describe Fluid Flow and Contaminant Transport in a Fractured Vadose Zone

Description: DOE faces the remediation of numerous contaminated sites, such as those at Hanford, INEEL, LLNL, and LBNL, where organic and/or radioactive wastes were intentionally or accidentally released to the vadose zone from surface spills, underground tanks, cribs, shallow ponds, and deep wells. Migration of these contaminants through the vadose zone has led to the contamination of (or threatens to contaminate) underlying groundwater. A key issue in choosing a corrective action plan to clean up contamin… more
Date: June 1, 1999
Creator: Faybishenko, Boris; Doughty, Christine & Geller, Jil T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Quantitative Analysis of Backlit Shadowgraphy as a Diagnostic of Hydrogen Ice Surface Quality in ICF Capsules

Description: This document presents the Integrated Safety Management System (ISMS) Description for the Superblock non-reactor nuclear facilities-Tritium Facility (Building 331), Plutonium Facility (Building 332), and Building 334--at the Lawrence Livermore National Laboratory. Building 332 is a Nuclear Hazard Category 2 facility, while Buildings 331 and 334 are Category 3 facilities in accordance with DOE STD-1027, DOE STD-3009, and DOE Order 5480.23. In implementing the Superblock ISMS Description, a grade… more
Date: October 26, 1999
Creator: Koch, J.A.; Sater, J.; Bernat, T.; Bittner, D.; Collins, G.; Hammel, B et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Flow Around a Complex Building: Comparisons Between Experimental and Modeled Results

Description: The authors compare the results of computer simulated flow fields around building 170 (B170) at Lawrence Livermore National Laboratory (LLNL) with field measurements. This is the first stage of a larger effort to assess the ability of computational fluid dynamics (CFD) models to predict atmospheric dispersion scenarios around building complexes. At this stage, the focus is on accurate simulation of the velocity field. Two types of simulations were performed: predictive and post-experiment. The … more
Date: November 22, 1999
Creator: Calhoun, R.J.; Chan, S.; Gouveia, F.; Lee, R.; Leone, J.; Shinn, J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Federal facilities compliance act waste management

Description: Site Treatment Plans (STPs) developed through the Federal Facilities Compliance Act pose many technical and administrative challenges. Legacy wastes managed under these plans require Land Disposal Restriction (LDR) compliance through treatment and ultimate disposal. Although capacity has been defined for most of the Department of Energy wastes, many waste streams require further characterization and many need additional treatment and handling beyond LDR criteria to be able to dispose of the was… more
Date: July 6, 1999
Creator: Bowers, J.; Gates-Anderson, D.; Hollister, R. & Painter, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

FXR fast beam imaging diagnostics

Description: The Lawrence Livermore National Laboratory Flash X-ray (FXR) machine is being upgraded to produce two pulses. A very fast imaging system has been developed to characterize the electron beam diameter and shape. The system consists of a kapton target insertion mechanism and a framing camera. It has a fast gated imaging tube (500 ps) and CCD subsystem to capture and send the image to the control room. The beam diameter data provides insight on mechanisms that effect the x-ray spot size. These colo… more
Date: June 1, 1999
Creator: Ferriera, T.; Gilliam, R.; Ong, M.; Wargo, P. & Zentler, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

LLNL NESHAPs 1998 annual report

Description: This annual report is prepared pursuant to the National Emissions Standards for Hazardous Air Pollutants (NESHAPs) 40 CFR Part 61, Subpart H; Subpart H governs radionuclide emissions to air from Department of Energy (DOE) facilities. NESHAPs limits the emission of radionuclides to the ambient air from DOE facilities to levels resulting in an annual effective dose equivalent (EDE) of 10 mrem (100 {micro}Sv) to any member of the public. The EDEs for the Lawrence Livermore National Laboratory (LLN… more
Date: June 14, 1999
Creator: Berger, R. L.; Bertoldo, N. A.; Biermann, A. H.; Gallegos, G.; Hall, L. C.; Harrach, R. J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Inter-Laboratory Uranium Double-Spike Experiment

Description: In environmental samples, the major analytical limitation on the use of uranium {sup 238}U/{sup 235}U determinations as an indicator of uranium enrichment is mass dependent bias occurring during the measurement. The double-spike technique can be used to correct the data for this effect. The purpose of this experiment was to evaluate the variation of mass bias among several laboratories and to determine the extent to which the double-spike could be used to reduce analytical uncertainty. Four lab… more
Date: November 11, 1999
Creator: Russ, G. P
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimentally Determined Coordinates for Three MILS Hydrophones Near Ascension Island

Description: We conducted an airgun survey in the waters of Ascension Island in May 1999 to determine new locations and depths for three Missile Impact Location System (MILS) hydrophones (ASC23, ASC24, and ASC26) currently in use by the Prototype International Data Center (PIDC) and the National Data Center (NDC). The nominal and new locations are summarized in Table 1. Although not rigorous, errors in the new locations and depths are conservatively estimated to be less than 100 m. The hydrophones are eithe… more
Date: November 19, 1999
Creator: Harben, P. E.; Hollfelder, J. R. & Rodgers, A. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Program for Climate Model Diagnosis and Intercomparison Diagnostic System: Implementing a New Strategy Beyond the Atmospheric Model Intercomparison Project (AMIP)

Description: The Program for Climate Model Diagnosis and Intercomparison (PCMDI) was established in 1989 at the Lawrence Livermore National Laboratory (LLNL) with the principal mission to develop improved methods and tools for the diagnosis, validation and intercomparison of global climate models. The goal of the process is to eventually improve simulation of the regional climate effects of increasing greenhouse gases. In addition to comparing models, PCMDI continues to develop a modeling infrastructure by … more
Date: October 18, 1999
Creator: Potter, G.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Spherical Harmonic Solutions to the 3D Kobayashi Benchmark Suite

Description: Spherical harmonic solutions of order 5, 9 and 21 on spatial grids containing up to 3.3 million cells are presented for the Kobayashi benchmark suite. This suite of three problems with simple geometry of pure absorber with large void region was proposed by Professor Kobayashi at an OECD/NEA meeting in 1996. Each of the three problems contains a source, a void and a shield region. Problem 1 can best be described as a box in a box problem, where a source region is surrounded by a square void regi… more
Date: December 29, 1999
Creator: Brown, P.N.; Chang, B. & Hanebutte, U.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Summary of Calculations Performed to Evaluate the Structural Integrity of the 6-Pack Container Pallet

Description: The 6-Pack Container Pallet is a space-frame structure, designed by Mason & Hanger Corp. to hold six AL-R8 containers together in a convenient bundle. The AL-R8 containers hold nuclear weapon components that require special care and consideration. The primary purpose of the 6-pack assembly is storage, but there is some manipulation as the 6-pack is loaded, moved and stacked. Recently, there has been an upgrade to a new AL-R8-SI container that is heavier than its predecessor was. The analysis di… more
Date: October 1, 1999
Creator: Hrousis, C. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Resolution, High-Speed Photography, an Increasingly Prominent Diagnostic in Ballistic Research Experiments

Description: High resolution, high-speed photography is becoming a prominent diagnostic in ballistic experimentation. The development of high speed cameras utilizing electro-optics and the use of lasers for illumination now provide the capability to routinely obtain high quality photographic records of ballistic style experiments. The purpose of this presentation is to review in a visual manner the progress of this technology and how it has impacted ballistic experimentation. Within the framework of develop… more
Date: October 22, 1999
Creator: Shaw, L. & Muelder, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Fissile Materials Disposition Formulation Report

Description: The Department of Energy (DOE) has chosen a titanate-based ceramic as the preferred form for the immobilization of surplus plutonium [COCHRAN]. The baseline formulation being developed includes a pyrochlore matrix, (Ca,Gd,Pu,U,Hf){sub 2}Ti{sub 2}O{sub 7} the primary site for plutonium and uranium, and several minor phases such as brannerite, (Pu,U)Ti{sub 2}O{sub 6}, and rutile, (TiHf)O{sub 2}. This baseline and ten other formulations were prepared to provide test specimens for characterization … more
Date: June 1, 1999
Creator: Hash, M. C.; Zyryanov, V. N.; Basco, J. K. & Chamberlain, D. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ISCR annual report FY 1998

Description: Advances in scientific computing research have never been more vital to the core missions of Lawrence Livermore National Laboratory than they are today. These advances are evolving so rapidly, and over such a broad front of computational science, that to remain on the leading edge, the Laboratory must collaborate with many academic centers of excellence. In FY 1998, ISCR dramatically expanded its interactions with academia through collaborations, visiting faculty, guests and a seminar series. T… more
Date: May 3, 1999
Creator: Alchorn, A & Fitzgerald, J M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Laboratory directed research and development FY98 annual report

Description: In 1984, Congress and the Department of Energy (DOE) established the Laboratory Directed Research and Development (LDRD) Program to enable the director of a national laboratory to foster and expedite innovative research and development (R and D) in mission areas. The Lawrence Livermore National Laboratory (LLNL) continually examines these mission areas through strategic planning and shapes the LDRD Program to meet its long-term vision. The goal of the LDRD Program is to spur development of new … more
Date: May 1, 1999
Creator: Al-Ayat, R & Holzrichter, J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

LLNL superconducting magnets test facility

Description: The FENIX facility at Lawrence Livermore National Laboratory was upgraded and refurbished in 1996-1998 for testing CICC superconducting magnets. The FENIX facility was used for superconducting high current, short sample tests for fusion programs in the late 1980s--early 1990s. The new facility includes a 4-m diameter vacuum vessel, two refrigerators, a 40 kA, 42 V computer controlled power supply, a new switchyard with a dump resistor, a new helium distribution valve box, several sets of power … more
Date: September 16, 1999
Creator: Manahan, R.; Martovetsky, N.; Moller, J. & Zbasnik, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Instrument calibration and measurement plan for the poorly measured/unmeasured category of highly enriched uranium at Lawrence Livermore National Laboratory

Description: In partial response to a Department of Energy (DOE) request to evaluate the state of measurements of special nuclear material, Lawrence Livermore National Laboratory (LLNL) evaluated and classified all highly enriched uranium (HEU) metal and oxide items in its inventory. Because of a lack of traceable HEU standards, no items were deemed to fit the category of well measured. A subsequent DOE-HQ sponsored survey by New Brunswick Laboratory resulted in their preparation of a set of certified refer… more
Date: July 1, 1999
Creator: Glosup, J & Mount, M E
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Stiffness and Strength Properties for Basic Sandwich Material Core Types

Description: Three basic core material types for sandwich structure applications are studied. The three two-dimensional pattern types are: honeycomb, triangular cells, and a new configuration involving star type cells. The specific critical properties of stiffness and strength type are identified and studied, both theoretically and experimentally.
Date: August 3, 1999
Creator: Kim, B. & Christensen, R. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Lawrence Livermore National Laboratory hot spot mobile laboratory

Description: Gross alpha/beta/tritium liquid The Hot Spot Mobile Laboratory is an asset used to analyze samples (some high hazard) from the field. Field laboratories allow the quick turnaround of samples needed to establish weapon condition and hazard assessment for the protection of responders and the public. The Hot Spot Lab is configured to fly anywhere in the world and is staffed by expert scientists and technicians from Lawrence Livermore National Laboratory who perform similar functions in their routi… more
Date: August 27, 1999
Creator: Buddemeier, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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