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Advanced Light Source beam position monitor

Description: The Advanced Light Source (ALS) is a synchrotron radiation facility nearing completion at LBL. As a third-generation machine, the ALS is designed to produce intense light from bend magnets, wigglers, and undulators (insertion devices). The facility will include a 50 MeV electron linear accelerator, a 1.5 GeV booster synchrotron, beam transport lines, a 1--2 GeV storage ring, insertion devices, and photon beam lines. Currently, the beam injection systems are being commissioned, and the storage r… more
Date: October 28, 1991
Creator: Hinkson, J.
Item Type: Refine your search to only Article
open access

Advanced Light Source Beam Position Monitor

Description: The Advanced Light Source (ALS) is a synchrotron radiation facility nearing completion at LBL. As a third-generation machine, the ALS is designed to produce intense light from bend magnets, wigglers, and undulators (insertion devices). The facility will include a 50 MeV electron linear accelerator, a 1.5 GeV booster synchrotron, beam transport lines, a 1--2 GeV storage ring, insertion devices, and photon beam lines. Currently, the beam injection systems are being commissioned, and the storage r… more
Date: October 28, 1991
Creator: Hinkson, J.
Item Type: Refine your search to only Article
open access

Advanced research workshop: nuclear materials safety

Description: The Advanced Research Workshop (ARW) on Nuclear Materials Safety held June 8-10, 1998, in St. Petersburg, Russia, was attended by 27 Russian experts from 14 different Russian organizations, seven European experts from six different organizations, and 14 U.S. experts from seven different organizations. The ARW was conducted at the State Education Center (SEC), a former Minatom nuclear training center in St. Petersburg. Thirty-three technical presentations were made using simultaneous translation… more
Date: January 28, 1999
Creator: Jardine, L J & Moshkov, M M
Item Type: Refine your search to only Article
open access

Advanced software algorithms

Description: Citibank was using a data collection system to create a one-time-only mailing history on prospective credit card customers that was becoming dated in its time to market requirements and as such was in need of performance improvements. To compound problems with their existing system, the assurance of the quality of the data matching process was manpower intensive and needed to be automated. Analysis, design, and prototyping capabilities involving information technology were areas of expertise pr… more
Date: October 28, 1996
Creator: Berry, K. & Dayton, S.
Item Type: Refine your search to only Report
open access

Advective diffusive/dispersive transport in geochemical processes

Description: Comprehensive understanding of chemical transport in response to fluid flow and diffusion in geologic processes requires thermodynamic and transport properties of a wide variety of aqueous species at the temperature and pressure of interest, as well as mass transfer computer codes that provide simultaneously for fluid flow, diffusion, dispersion, homogeneous chemical reactions, and mineral solubilities. As a result of research carried out with support from DOE in prior years of this grant, cons… more
Date: May 28, 1991
Creator: Helgeson, H. C.
Item Type: Refine your search to only Report
open access

AFM studies of a new type of radiation defect on mica surfaces caused by highly charged ion impact

Description: Radiation induced defects on mica caused by the impact of slow very highly charged ions (SVHCI) have been investigated with an atomic force microscope (AFM). Freshly cleaved surfaces of different types of muscovite were irradiated with SVHCI extracted from the LLNL electron beam ion trap (EBIT) at velocities of ca. 2 keV/amu. Atomic force microscopy of the surface reveals the formation of blisterlike defects associated with single ion impact. The determined defect volume which appears to increa… more
Date: September 28, 1994
Creator: Ruehlicke, C.; Briere, M.A. & Schneider, D.
Item Type: Refine your search to only Report
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Airport Improvement Program: FAA Complying With Requirement for Local Involvement in Noise Mitigation Projects

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO determined whether the Federal Aviation Administration (FAA) must enforce grant assurance as a condition of providing noise mitigation grants to the Seattle-Tacoma International Airport."
Date: December 28, 1998
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
open access

Alloy sputtering at high fluence: Preferential sputtering and competing effects

Description: This work addresses composition profiles and partial sputter yields of an alloy under ion bombardment. Effects of preferential sputtering, mixing, and gibbsian segregation are modelled. Theoretical basis is an integro-differential equation into which a feasible expression for a segregation current has been included. Dependence on composition of pertinent input parameters like relocation cross sections and atomic volumes is allowed for but not explored explicitly. In the high fluence limit, a st… more
Date: October 28, 1992
Creator: Sigmund, P. & Oliva, A.
Item Type: Refine your search to only Report
open access

Altering the Equilibrium Condition in Sr-Doped Lanthanum Manganite

Description: The material of choice for a solid oxide fuel cell cathode based on a yttria-stabilized zirconia (YSZ) electrolyte is doped lanthanum manganite, (La, Sr)MnO{sub 3}. It excels at many of the attributes necessary for a system to work at the required operating temperature and is flexible enough to allow for materials optimization. Although strontium-doping increases the electronic conductivity of the material, the ionic conductivity of the material remains negligible under operating conditions. St… more
Date: May 28, 1999
Creator: Carter, J. D.; Krumpelt, M.; Vaughey, J. & Wang, X.
Item Type: Refine your search to only Article
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Alternative filtration testing program: Pre-evaluation of test results

Description: Based on results of testing eight solids removal technologies and one pretreatment option, it is recommended that a centrifugal ultrafilter and polymeric ultrafilter undergo further testing as possible alternatives to the Norton Ceramic filters. Deep bed filtration should be considered as a third alternative, if a backwashable cartridge filter is shown to be inefficient in separate testing.
Date: September 28, 1990
Creator: Georgeton, G.K. & Poirier, M.R.
Item Type: Refine your search to only Report
open access

Alternative Filtration Testing Program: Pre-Evaluation of Test Results

Description: Based on results of testing eight solids removal technologies and one pretreatment option, it is recommended that a centrifugal ultrafilter and polymeric ultrafilter undergo further testing as possible alternatives to the Norton Ceramic filters. Deep bed filtration should be considered as a third alternative, if a backwashable cartridge filter is shown to be inefficient in separate testing.
Date: September 28, 1990
Creator: Georgeton, G. K. & Poirier, M. R.
Item Type: Refine your search to only Report
open access

Ammonia scrubber testing during IDMS SRAT and SME processing. Revision 1

Description: This report summarizes results of the Integrated DWPF (Defense Waste Processing Facility) Melter System (IDMS) ammonia scrubber testing during the PX-7 run (the 7th IDMS run with a Purex type sludge). Operation of the ammonia scrubber during IDMS Sludge Receipt and Adjustment Tank (SRAT) and Slurry Mix Evaporator (SME) processing has been completed. The ammonia scrubber was successful in removing ammonia from the vapor stream to achieve NH3 concentrations far below the 10 ppM vapor exist design… more
Date: April 28, 1995
Creator: Lambert, D. P.
Item Type: Refine your search to only Report
open access

AMS beyond 2000

Description: The occasion of this conference, the Sixth International Conference on Accelerator Mass Spectrometry, falls sixteen years after the remarkable triple simultaneous discovery of this powerful isotopic measurement. In the interval since the Fifth Conference in Paris in 1991, new facilities of both large and small size have become fully operational, achieving impressive gains in both measurement throughput and precision. The purpose of this short review is to extrapolate from recent gains and exper… more
Date: December 28, 1993
Creator: Davis, J. C.
Item Type: Refine your search to only Article
open access

Analysis of a third-order sum resonance

Description: It is worth considering an experiment on a sum resonance. I will give an analytic treatment of a third-order sum resonance. The treatment parallels that in LS-132 for the Walkinshaw difference resonance. Although the algebra is essentially the same as for the difference resonance, the sum resonance appears to have a richer structure.
Date: June 28, 1990
Creator: Symon, K.
Item Type: Refine your search to only Report
open access

Analysis of alternatives for immobilized low activity waste disposal

Description: This report presents a study of alternative disposal system architectures and implementation strategies to provide onsite near-surface disposal capacity to receive the immobilized low-activity waste produced by the private vendors. The analysis shows that a flexible unit strategy that provides a suite of design solutions tailored to the characteristics of the immobilized low-activity waste will provide a disposal system that best meets the program goals of reducing the environmental, health, an… more
Date: October 28, 1997
Creator: Burbank, D. A.
Item Type: Refine your search to only Report
open access

Analysis of F-Canyon Effluents During the Dissolution Cycle with a Fourier Transform Infrared Spectrometer/Multipath Cell

Description: Air samples from F-Canyon effluents were collected at the F-Canyon stack and transported to a laboratory at the Savannah River Technology Center (SRTC) for analysis using a Fourier transform infrared spectrometer in conjunction with a multipath cell. Air samples were collected during the decladding and acid cuts of the dissolution of the irradiated aluminum-cladded slugs. The FTIR analyses of the air samples show the presence of NO2, NO, HNO2, N2O, SF6, and 85Kr during the dissolution cycle. Th… more
Date: July 28, 1999
Creator: Villa, E.
Item Type: Refine your search to only Report
open access

Analysis of Hydrogen Depletion Using a Scaled Passive Autocatalytic Recombiner

Description: Hydrogen depletion tests of a scaled passive autocatalytic recombine (pAR) were performed in the Surtsey test vessel at Sandia National Laboratories (SNL). The experiments were used to determine the hydrogen depletion rate of a PAR in the presence of steam and also to evaluate the effect of scale (number of cartridges) on the PAR performance at both low and high hydrogen concentrations.
Date: October 28, 1998
Creator: Blanchat, Thomas K. & Malliakos, Asimios
Item Type: Refine your search to only Article
open access

Analysis of Solar Two Heliostat Tracking Error Sources

Description: This paper explores the geometrical errors that reduce heliostat tracking accuracy at Solar Two. The basic heliostat control architecture is described. Then, the three dominant error sources are described and their effect on heliostat tracking is visually illustrated. The strategy currently used to minimize, but not truly correct, these error sources is also shown. Finally, a novel approach to minimizing error is presented.
Date: January 28, 1999
Creator: Jones, S.A. & Stone, K.W.
Item Type: Refine your search to only Article
open access

Analysis, Optimization, and Assessment of Radioisotope Thermophotovoltaic System Design for an Illustrative Space Mission

Description: A companion paper presented at this conference described the design of a Radioisotope Thermophotovoltaic (RTPV) Generator for an illustrative space mission (Pluto Fast Flyby). It presented a detailed design of an integrated system consisting of a radioisotope heat source, a thermophotovoltaic converter, and an optimized heat rejection system. The present paper describes the thermal, electrical, and structural analyses which led to that optimized design, and compares the computed RTPV performanc… more
Date: June 28, 1994
Creator: Schock, Alfred; Mukunda, Meera & Summers, G.
Item Type: Refine your search to only Report
open access

Analytical and experimental evaluation of solid waste drum fire performance volumes I and II

Description: Fire hazards associated with drum storage of radioactively contaminated wastes are a major concern in DOE facilities design for long term storage of solid wastes in drums. These facilities include drums stored in pallet arrays and in rack storage systems. This report details testing in this area
Date: April 28, 1995
Creator: Hecker, C. F.; Rhodes, B. T.; Beitel, J. J.; Gottuk, D. T.; Beyler, C. L. & Rosenbaum, E. R.
Item Type: Refine your search to only Report
open access

Annotated bibliography, seismicity of and near the island of Hawaii and seismic hazard analysis of the East Rift of Kilauea

Description: This bibliography is divided into the following four sections: Seismicity of Hawaii and Kilauea Volcano; Occurrence, locations and accelerations from large historical Hawaiian earthquakes; Seismic hazards of Hawaii; and Methods of seismic hazard analysis. It contains 62 references, most of which are accompanied by short abstracts.
Date: March 28, 1994
Creator: Klein, F. W.
Item Type: Refine your search to only Report
open access

Antimicrobial Resistance: Data to Assess Public Health Threat From Resistant Bacteria Are Limited

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the potential threat to the public's health from antimicrobial resistant bacteria, focusing on: (1) what is known about the public health burden--in terms of illnesses, deaths and treatment costs--due to antimicrobial resistance; (2) potential future burden, given what is known about the development of resistance in microbes and usage of antimicr… more
Date: April 28, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
open access

Appalachian clean coal technology consortium

Description: Novel chemicals that can be used for increasing the efficiency of fine coal dewatering was developed at Virginia Tech. During the past quarter, Reagent A was tested on three different coal samples in laboratory vacuum filtration tests. these included flotation products from Middle Fork plant, Elkview Mining Company, and CONSOL, Inc. the tests conducted with the Middle Fork coal sample (100 mesh x 0) showed that cake moisture can be reduced by more than 10% beyond what can be achieved without us… more
Date: January 28, 1997
Creator: Yoon, R. H.; Basim, B.; Luttrell, G. H.; Phillips, D. I.; Jiang, D.; Tao, D. et al.
Item Type: Refine your search to only Report
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