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5 MW pulsed spallation neutron source, Preconceptual design study

Description: This report describes a self-consistent base line design for a 5 MW Pulsed Spallation Neutron Source (PSNS). It is intended to establish feasibility of design and as a basis for further expanded and detailed studies. It may also serve as a basis for establishing project cost (30% accuracy) in order to intercompare competing designs for a PSNS not only on the basis of technical feasibility and technical merit but also on the basis of projected total cost. The accelerator design considered here i… more
Date: June 1, 1994
Item Type: Refine your search to only Report
open access

50-MW X-band klystron sources for the next generation of linear colliders

Description: The first in a new series of high-power pulsed klystrons has been tested with the following results: Frequency = 11.4 GHz, beam voltage = 415 kV, power output = 51 MW, pulse length = 1.5 {mu}s, and efficiency = 37%. Several tubes of this type will be used in the Next Linear Collider Test Accelerator (NLCTA) at SLAC. The rf performance of the klystron, which employs a standing-wave extended-interaction output circuit, is closely approximated by simulations performed with the SLAC CONDOR code. Th… more
Date: June 1, 1994
Creator: Caryotakis, G.; Eppley, K.; Fant, K.; Fowkes, R.; Phillips, R.; Tantawi, S. et al.
Item Type: Refine your search to only Article
open access

100 Area soil washing: Bench scale tests on 116-F-4 pluto crib soil

Description: The Pacific Northwest Laboratory conducted a bench-scale treatability study on a pluto crib soil sample from 100 Area of the Hanford Site. The objective of this study was to evaluate the use of physical separation (wet sieving), treatment processes (attrition scrubbing, and autogenous surface grinding), and chemical extraction methods as a means of separating radioactively-contaminated soil fractions from uncontaminated soil fractions. The soil washing treatability study was conducted on a soil… more
Date: June 10, 1994
Creator: Field, J. G.
Item Type: Refine your search to only Report
open access

100 areas technical activities report - engineering, May, 1948

Description: This report is the May, 1948, progress report from the pile engineering groups in support of the production reactors in the 100 Area of the Hanford Reservation. Included are studies of reactor slug fabrication techniques relative to blistering and corrosion, corrosion of reactor components, studies and design of graphite blocks for reactors, and reactor cover gas changes and studies.
Date: June 18, 1994
Creator: Woods, W. K.
Item Type: Refine your search to only Report
open access

1993 Northern Goshawk Inventory on Portions of Los Alamos National Laboratory, Los Alamos, NM. Final Report.

Description: Northern goshawks (Accipiter gentilis) (hereafter referred to as goshawk) is a large forest dwelling hawk. Goshawks may be declining in population and reproduction in the southwestern United States. Reasons for the possible decline in goshawk populations include timber harvesting resulting in the loss of nesting habitat, toxic chemicals, and the effects of drought, fire, and disease. Thus, there is a need to determine their population status and assess impacts of management activities in potent… more
Date: June 1, 1994
Creator: Sinton, D. T. & Kennedy, P. L.
Item Type: Refine your search to only Report
open access

Abstracts and program proceedings of the 1994 meeting of the International Society for Ecological Modelling North American Chapter

Description: This document contains information about the 1994 meeting of the International Society for Ecological Modelling North American Chapter. The topics discussed include: extinction risk assessment modelling, ecological risk analysis of uranium mining, impacts of pesticides, demography, habitats, atmospheric deposition, and climate change.
Date: June 1, 1994
Creator: Kercher, J. R.
Item Type: Refine your search to only Article
open access

Acceleration theorems

Description: Electromagnetic fields can be separated into near and far components. Near fields are extensions of static fields. They do not radiate, and they fall off more rapidly from a source than far fields. Near fields can accelerate particles, but the ratio of acceleration to source fields at a distance R, is always less than R/{lambda} or 1, whichever is smaller. Far fields can be represented as sums of plane parallel, transversely polarized waves that travel at the velocity of light. A single such wa… more
Date: June 1, 1994
Creator: Palmer, R.
Item Type: Refine your search to only Article
open access

Achieving competitive excellence in nuclear energy: The threat of proliferation; the challenge of inertial confinement fusion

Description: Nuclear energy will have an expanding role in meeting the twenty-first-century challenges of population and economic growth, energy demand, and global warming. These great challenges are non-linearly coupled and incompletely understood. In the complex global system, achieving competitive excellence for nuclear energy is a multi-dimensional challenge. The growth of nuclear energy will be driven by its margin of economic advantage, as well as by threats to energy security and by growing evidence … more
Date: June 1, 1994
Creator: Nuckolls, J. H.
Item Type: Refine your search to only Article
open access

Active airborne contamination control using electrophoresis

Description: In spite of our best efforts, radioactive airborne contamination continues to be a formidable problem at many of the Department of Energy (DOE) weapons complex sites. For workers that must enter areas with high levels of airborne contamination, personnel protective equipment (PPE) can become highly restrictive, greatly diminishing productivity. Rather than require even more restrictive PPE for personnel in some situations, the Rocky Flats Plant (RFP) is actively researching and developing metho… more
Date: June 1, 1994
Creator: Veatch, B. D.
Item Type: Refine your search to only Article
open access

Acute environmental toxicity and persistence of methyl salicylate: A chemical agent simulant. Final report

Description: The interactions of methyl salicylate with plant foliage and soils were assessed using aerosol/vapor exposure methods. Measurements of deposition velocity and residence times for soils and foliar surfaces are reported. Severe plant contact toxicity was observed at foliar mass-loading levels above 4 {mu}g/cm{sup 2} leaf; however, recovery was noted after four to fourteen days. Methyl salicylate has a short-term effect on soil dehydrogenase activity, but not phosphatase activity. Results of the e… more
Date: June 1, 1994
Creator: Cataldo, D. A.; Ligotke, M. W.; Harvey, S. D.; Fellows, R. J. & Li, S. W.
Item Type: Refine your search to only Report
open access

An adaptive finite element methodology for 2D simulation of two-phase flow through porous media

Description: A scheme for the accurate simulation of two-phase flow through porous media, utilizing adaptive finite element methods is presented. The theoretical equations and their approximation using Galerkin`s method is covered, followed by a discussion of a dynamically refined mesh which preserves piece wise solutions across transition elements. Finally, comparisons are made between results of computed simulations and laboratory experiments. The paper uses the processes occurring in a water coning scena… more
Date: June 1, 1994
Creator: Morton, D. J.; Tyler, J. M.; Bourgoyne, A. T. & Schenewerk, P. A.
Item Type: Refine your search to only Article
open access

Adaptive learning of Multi-Sensor Integration techniques with genetic algorithms

Description: This research focuses on automating the time-consuming process of developing and optimizing multi-sensor integration techniques. Our approach is currently based on adaptively learning how to exploit low-level image detail. Although this system is specifically designed to be both sensor and application domain independent, an empirical validation with actual multi-modal sensor data is presented.
Date: June 1, 1994
Creator: Baker, J. E.
Item Type: Refine your search to only Article
open access

Advanced coal-fueled industrial cogeneration gas turbine system -- combustion development

Description: This topical report summarizes the combustor development work accomplished under the subject contract. The objective was to develop a combustion system for the Solar 4MW Type H Centaur gas turbine generator set which was to be used to demonstrate the economic, technical and environmental feasibility of a direct coal-fueled gas turbine in a 100 hour proof-of-concept test. This program started with a design configuration derived during the CSC program. The design went through the following evolut… more
Date: June 1, 1994
Creator: LeCren, R. T.
Item Type: Refine your search to only Report
open access

Advanced coal technology by-products: Long-term results from landfill test cells and their implications for reuse or disposal applications

Description: New air pollution regulations under the 1991 Clean Air Act and other legislation are motivating continued development and implementation, of cleaner, more efficient processes for converting coal to electrical power. These clean coal processes produce solid by-products which differ in important respects from conventional pulverized coal combustion ash. Clean coal by-products` contain both residual sorbent and captured SO{sub 2} control products, as well as the mineral component of the coal. The … more
Date: June 1, 1994
Creator: Weinberg, A. & Harness, J. L.
Item Type: Refine your search to only Report
open access

Advanced hydrogen utilization technology demonstration

Description: This report presents the results of a study done by Detroit Diesel Corporation (DDC). DDC used a 6V-92TA engine for experiments with hydrogen fuel. The engine was first baseline tested using methanol fuel and methanol unit injectors. One cylinder of the engine was converted to operate on hydrogen fuel, and methanol fueled the remaining five cylinders. This early testing with only one hydrogen-fueled cylinder was conducted to determine the operating parameters that would later be implemented for… more
Date: June 1, 1994
Creator: Hedrick, J. C. & Winsor, R. E.
Item Type: Refine your search to only Report
open access

Advanced Industrial Materials Program. Annual progress report, FY 1993

Description: Mission of the AIM program is to commercialize new/improved materials and materials processing methods that will improve energy efficiency, productivity, and competitiveness. Program investigators in the DOE national laboratories are working with about 100 companies, including 15 partners in CRDAs. Work is being done on intermetallic alloys, ceramic composites, metal composites, polymers, engineered porous materials, and surface modification. The program supports other efforts in the Office of … more
Date: June 1, 1994
Creator: Stooksbury, F.
Item Type: Refine your search to only Report
open access

Advanced pyrochemical technologies for minimizing nuclear waste

Description: The Department of Energy (DOE) is seeking to reduce the size of the current nuclear weapons complex and consequently minimize operating costs. To meet this DOE objective, the national laboratories have been asked to develop advanced technologies that take uranium and plutonium, from retired weapons and prepare it for new weapons, long-term storage, and/or final disposition. Current pyrochemical processes generate residue salts and ceramic wastes that require aqueous processing to remove and rec… more
Date: June 1, 1994
Creator: Bronson, M. C.; Dodson, K. E. & Riley, D. C.
Item Type: Refine your search to only Article
open access

Advanced robotics for decontamination and dismantlement

Description: The decontamination and dismantlement (D&D) robotics technology application area of the US Department of Energy`s Robotics Technology Development Program is explained and described. D&D robotic systems show real promise for the reduction of human exposure to hazards, for improvement of productivity, and for the reduction of secondary waste generation. Current research and development pertaining to automated floor characterization, robotic equipment removal, and special inspection is summarized.… more
Date: June 1, 1994
Creator: Hamel, W. R. & Haley, D. C.
Item Type: Refine your search to only Article
open access

Advanced Turbine Systems Program: Conceptual design and product development. Quarterly report, February--April 1994

Description: Objective (Phase II) is to develop an industrial gas turbine system to operate at a thermal efficiency of 50% (ATS50) with efficiency enhancements to be added as they become possible. During this quarter, Solar`s engine design team has refined both the 1- and 2-spool cycle concepts, to determine sensitivity to key component efficiencies, cooling air usage and origin, and location of compressor surge lines. The refined analysis included more detailed component work such as compressor and turbine… more
Date: June 1, 1994
Creator: Benjamin, G. J.
Item Type: Refine your search to only Report
open access

Advanced Turbine Systems Program conceptual design and product development. Quarterly report, November 1993--January 1994

Description: This Quarterly Technical Progress Report covers the period November 1, 1993, through January 31, 1994, for Phase 11 of the Advanced Turbine Systems (ATS) Program by Solar Turbines Incorporated under DOE Contract No. DE-AC421-93MC30246. The objective of this program is to provide the conceptual design and product development plan for an industrial gas turbine system to operate at a thermal efficiency of 50 percent ({open_quotes}ATS50{close_quotes}) with future improvement to 60 percent ({open_qu… more
Date: June 1, 1994
Creator: Karstensen, K. W.
Item Type: Refine your search to only Report
open access

Advanced Turbine Systems Program conceptual design and product development: Task 4.0

Description: This Topical Report presents the results of Task 4 of the Westinghouse ATS Program. The purpose of Task 4 is to determine the technical development needs for conversion of the gas-fired ATS (GFATS). Two closely related, advanced, coal-based power plant technologies have been selected for consideration as the CFATS -- air-blown, coal gasification with hot gas cleaning incorporated into an Integrated Gasification Combined Cycle (IGCC), and the Second-Generation Pressurized Fluidized Bed Combustio… more
Date: June 1, 1994
Item Type: Refine your search to only Report
open access

AEM and AES of radiation-induced segregation in proton-irradiated stainless steels

Description: In order to avoid complications from long-term induced radioactivity of neutron-irradiated specimens, 4 type 304L alloys were irradiated to 1 dpa with 3.4 MeV protons at 400 C. Analytical electron microscopy and Auger electron spectrometry were used to measure composition at and near grain boundaries in controlled purity alloys. As a result of the narrow RIS profiles (<20 nm width) at grain boundaries induced in these materials by low temperature irradiation and the finite size of the excited v… more
Date: June 1, 1994
Creator: Kenik, E. A.; Carter, R. D.; Damcott, D. L.; Atzmon, M. & Was, G. S.
Item Type: Refine your search to only Article
open access

Aging management guideline for commercial nuclear power plants - heat exchangers

Description: This Aging Management Guideline (AMG) describes recommended methods for effective detection and mitigation of age-related degradation mechanisms in commercial nuclear power plant heat exchangers important to license renewal. The intent of this AMG is to assist plant maintenance and operations personnel in maximizing the safe, useful life of these components. It also supports the documentation of effective aging management programs required under the License Renewal Rule 10 CFR 54. This AMG is p… more
Date: June 1, 1994
Creator: Booker, S.; Lehnert, D.; Daavettila, N. & Palop, E.
Item Type: Refine your search to only Report
open access

Air Emission Inventory for the Idaho National Engineering Laboratory, 1993 emissions report

Description: This report presents the 1993 update of the Air Emission Inventory for the Idaho National Engineering Laboratory (INEL). The purpose of the Air Emission Inventory is to commence the preparation of the permit to operate application for the INEL, as required by the recently promulgated Title V regulations of the Clean Air Act. The report describes the emission inventory process and all of the sources at the INEL and provides emissions estimates for both mobile and stationary sources.
Date: June 1, 1994
Item Type: Refine your search to only Report
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