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Methods for measuring the surface tritium inside TFTR using beta decay

Description: Three potential methods for measuring the surface tritium content of the TFTR vacuum vessel are described, each based on a different technique for measuring the in situ beta emission from tritium. These methods should be able to provide both a local and a global assessment of the tritium content within the top [approx] 1[mu]m of the inner wall surface.
Date: January 1, 1994
Creator: Zweben, S. J.; Johnson, D. & Hill, K. (Princeton Univ., NJ (United States). Plasma Physics Lab.) (and others)
Partner: UNT Libraries Government Documents Department
open access

Long-term sealing analyses for US Strategic Petroleum Reserve (SPR) caverns

Description: It is inevitable that sealing and abandonment will someday occur in a SPR cavern or caverns. To gain insight into the long-term behavior of a typical SPR cavern following sealing and abandonment, a suite of mechanical finite-element calculations was performed. The initial analyses predict how quickly and to what extent a cavern pressurizes after it is plugged. The analyses also examine the stability of the cavern as it changes shape due to the excessive pressures generated as the salt creeps an… more
Date: February 1, 1994
Creator: Ehgartner, B.
Partner: UNT Libraries Government Documents Department
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Review of Desiccant Dehumidification Technology

Description: This paper overviews applications of desiccant technology for dehumidifying commercial and institutional buildings. Because of various market, policy, and regulatory factors, this technology is especially attractive for dehumidification applications in the I990s.
Date: October 1, 1994
Creator: Pesaran, A. A.
Partner: UNT Libraries Government Documents Department
open access

Willow Creek Habitat Evaluation

Description: The Willow Creek site is one of the most significant remaining areas of typical native Willamette Valley habitats, with a variety of wetlands, grasslands, and woodlands. A diverse array of native flora and fauna, with significant wildlife habitats, is present on the site. Wildlife diversity is high, and includes species of mammals, songbirds, raptors, reptiles, amphibians, and one rare invertebrate. Over 200 species of native plants have been identified (including populations of six rare, threa… more
Date: September 1994
Creator: Beilke, Susan
Partner: UNT Libraries Government Documents Department
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Umatilla River Basin Anadromus Fish Habitat Enhancement Project : 1994 Annual Report.

Description: The Umatilla Basin Anadromous Fish Habitat Enhancement Project is funded under the Northwest Power Planning Council's Columbia River Basin Fish and Wildlife Program, Section 7.6-7.8 and targets the improvement of water quality and restoration of riparian areas, holding, spawning and rearing habitats of steelhead, spring and fall chinook and coho salmon. The project focused on implementing cooperative instream and riparian habitat improvements on private lands on the Umatilla Indian Reservation … more
Date: May 1, 1994
Creator: Shaw, R. Todd
Partner: UNT Libraries Government Documents Department
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Discovery of the Most Distant Supernovae and the Quest for Omega

Description: A search for cosmological supernovae has discovered a number of a type la supernovae. In particular, one at z = 0.458 is the most distant supernova yet observed. There is strong evidence from measurements of nearby type Ia supernovae that they can be considered as 'standard candles'. We plan to use these supernovae to measure the deceleration in the general expansion of the universe. The aim of our experiment is to try and observe and measure about 30 such distant supernovae in order to obtain … more
Date: May 1, 1994
Creator: Goldhaber, G.; Boyle, B.; Bunclark, P.; Carter, D.; Ellis, R.; Gabi, S. et al.
Partner: UNT Libraries Government Documents Department
open access

Environmental Resources of Selected Areas of Hawaii: Groundwater in the Puna District of the Island of Hawaii (DRAFT)

Description: This report has been prepared to make available and archive the background scientific data and related information collected on groundwater during the preparation of the environmental impact statement (EIS) for Phases 3 and 4 of the Hawaii Geothermal Project (HGP) as defined by the state of Hawaii in its April 1989 proposal to Congress. The U.S. Department of Energy (DOE) published a notice in the Federal Register on May 17,1994 (Fed Regis. 5925638), withdrawing its notice of intent (Fed. Regis… more
Date: June 1, 1994
Creator: Staub, W.P.
Partner: UNT Libraries Government Documents Department
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Environmental Resources of Selected Areas of Hawaii: Geological Hazards (DRAFT)

Description: This report has been prepared to make available and archive the background scientific data and related information collected on geologic hazards during the preparation of the environmental impact statement (EIS) for Phases 3 and 4 of the Hawaii Geothermal Project (HGP) as defined by the state of Hawaii in its April 1989 proposal to Congress. The U.S. Department of Energy (DOE) published a notice in the Federal Register on May 17, 1994 (Fed Regis. 5925638) withdrawing its Notice of Intent (Fed R… more
Date: June 1, 1994
Creator: Staub, W.P.
Partner: UNT Libraries Government Documents Department
open access

Environmental Resources of Selected Areas of Hawaii: Ecological Resources (DRAFT)

Description: This report has been prepared to make available and archive the background scientific data and related information collected on ecological resources during the preparation of the environmental impact statement (EIS) for Phases 3 and 4 of the Hawaii Geothermal Project (HGP) as defined by the state of Hawaii in its April 1989 proposal to Congress. The U.S. Department of Energy (COE) published a notice in the Federal Register on May 17, 1994 (Fed. Regist. 5925638) withdrawing its Notice of Intent … more
Date: June 1, 1994
Creator: Trettin, C.C.; Tolbert, V.R.; Jones, A.T.; Smith, C.R. & Kalmijn, A.J.
Partner: UNT Libraries Government Documents Department
open access

The Effect of Steady Winds on Radon-222 Entry from soil into houses

Description: Wind affects the radon-222 entry rate from soil into buildings and the resulting indoor concentrations. To investigate this phenomenon, we employ a previously tested three-dimensional numerical model of soil-gas Bow around houses, a commercial computational fluid dynamics code, an established model for determining ventilation rates in the presence of wind, and new wind tunnel results for the ground-surface pressure field caused by wind. These tools and data, applied under steady-state condition… more
Date: October 1, 1994
Creator: Riley, W. J.; Gadgil, A. J.; Bonnefous, Y. C. & Nazaroff, W. W.
Partner: UNT Libraries Government Documents Department
open access

Use of Sound for Fish Protection at Power Facilities : A Historical Perspective of the State of the Art : Phase 1 Final Report.

Description: This paper summarizes the current state of the knowledge of fish hearing, i.e., what is known about fish response to sound, and provides a starting place for investigation into the use of sonic behavior modification to help solve pressing problems in the maintenance and recovery of anadromous and resident fish stocks of the Columbia River Basin. The challenge for scientists and engineers is to understand (1) how and what fish hear, and (2) how to use this knowledge to influence fish behavior or… more
Date: November 1, 1994
Creator: Carlson, Thomas J.
Partner: UNT Libraries Government Documents Department
open access

The Low-Energy State ofCirculating Stored Ion Beams: Crystalline Beams

Description: Molecular dynamics is employed to study the low energy states of a beam of charged particles subject to circumferentially varying guiding and focusing forces and with Coulomb forces between the particles. In a constant gradient ring, the lowest energy state is never ordered, but in an alternating gradient structure, operating below the transition energy, the lowest state is ordered. The nature and characteristics of the ground state depends upon the beam density and the ring parameters. For zer… more
Date: March 10, 1994
Creator: Wei, J.; Li, X. P. & Sessler, Andrew M.
Partner: UNT Libraries Government Documents Department
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TREATMENT TESTS FOR EX SITU REMOVAL OF CHROMATE & NITRATE & URANIUM (VI) FROM HANFORD (100-HR-3) GROUNDWATER FINAL REPORT

Description: This report describes batch and ion exchange column laboratory scale studies investigating ex situ methods to remove chromate (chromium [VI]), nitrate (NO{sub 3}{sup -}) and uranium (present as uranium [VI]) from contaminated Hanford site groundwaters. The technologies investigated include: chemical precipitation or coprecipitation to remove chromate and uranium; and anion exchange to remove chromate, uranium and nitrate. The technologies investigated were specified in the 100-HR-3 Groundwater … more
Date: January 3, 1994
Creator: MA, BECK & JB, DUNCAN
Partner: UNT Libraries Government Documents Department
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Three Dimensional Laser Cooling of Stored and Circulating Ion Beams by Means of a Coupling Cavity

Description: It is shown, theoretically, that a coupling cavity; namely an rf cavity operating in the TM{sup 210} mode, when inserted in a storage ring will enhance the coupling between longitudinal and transverse degrees of freedom. As a result, it is shown that the demonstrated very effective laser cooling of the longitudinal motion, can now be extended to transverse motion; i.e., employed to cool a beam in all three directions.
Date: February 1, 1994
Creator: Okamoto, H.; Sessler, Andrew M. & Mohl, D.
Partner: UNT Libraries Government Documents Department
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Sulfur removal in advanced two stage pressurized fluidized bed combustion. Technical report, September 1--November 30, 1994

Description: The objective of this study is to obtain data on the rates and the extent of sulfation reactions involving partially sulfided calcium-based sorbents, and oxygen as well as sulfur dioxide, at operating conditions closely simulating those prevailing in the second stage (combustor) of Advanced Two-Stage Pressurized Fluidized-Bed Combustors (PFBC). In these systems the CO{sub 2} partial pressure generally exceeds the equilibrium value for calcium carbonate decomposition. Therefore, calcium sulfate … more
Date: December 31, 1994
Creator: Abbasian, Javad; Hill, Andy; Wangerow, James R. & Honea, Franklin I.
Partner: UNT Libraries Government Documents Department
open access

Search for top quark at CDF

Description: There is a vast theoretical and experimental support for idea that op quark as a weak isospin partner to b-quark should exist. Production cross section is steeply falling function of top quark mass. Therefore realistically at present only Tevatron p[anti p] collider at FNAL, with total energy 1.8 TeV in CMS system, still has a chance of top quark discovery. Dominant production mechanism for top quarks at Tevatron is pair production of t[anti t]. With almost 100% probability t ([anti t]) decays … more
Date: November 1, 1994
Partner: UNT Libraries Government Documents Department
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The Manuel Lujan Jr. Neutron Scattering Center

Description: High in the northcentral mountains of Los Alamos, New Mexico, is the Manuel Lujan Jr. Neutron Scattering Center (LANSCE), a pulsed-spallation neutron source located at Los Alamos National Laboratory. At LANSCE, neutrons are produced by spallation when a pulsed 800-MeV proton beam impinges on a tungsten target. The proton pulses are provided by a linear accelerator and an associated Proton Storage Ring (PSR), which alters the intensity, time structure, and repetition rate of the pulses. In Octob… more
Date: January 1, 1994
Creator: Goldstone, J.A. (Los Alamos National Lab., NM (United States). Manuel Lujan Jr. Neutron Scattering Center)
Partner: UNT Libraries Government Documents Department
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A debris free, electron beam driven, lithography source at 130 [angstrom]

Description: Los Alamos and Grumman are cooperatively investigating a debris free source for EUV lithography. This source utilizes the predicted anomalous energy loss of a short pulse electron beam in a preformed plasma to heat and ionize the ions to a charge state where efficient radiation at 130[angstrom] occurs. Accelerators developed for the free electron laser program at Los Alamos are used as the electron bunch source. These accelerators use a laser driven photocathode to produce 15 psec electron bunc… more
Date: January 1, 1994
Creator: Fulton, R. D.; Abdallah, J.; Goldstein, J. C.; Jones, M. E.; Kilcrease, D. P.; Kinross-Wright, J. M. et al.
Partner: UNT Libraries Government Documents Department
open access

A Flow Reactor for the Flow Supercritical Water Oxidation of Wastes to Mitigate the Reactor Corrosion Problem

Description: We have designed a flow tube reactor for supercritical water oxidation of wastes that confines the oxidation reaction to the vicinity of the axis of the tube. This prevents high temperatures and reactants as well as reaction products from coming in intimate contact with reactor walls. This implies a lessening of corrosion of the walls of the reactor. We display numerical simulations for a vertical reactor with conservative design parameters that illustrate our concept. We performed our calculat… more
Date: 1994~
Creator: Chitanvis, S. M.
Partner: UNT Libraries Government Documents Department
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Chemical Safety Vulnerability Working Group Report

Description: This report marks the culmination of a 4-month review conducted to identify chemical safety vulnerabilities existing at DOE facilities. This review is an integral part of DOE's efforts to raise its commitment to chemical safety to the same level as that for nuclear safety.
Date: September 1, 1994
Partner: UNT Libraries Government Documents Department
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Disilene Addition to C{sub 70}

Description: Semiempirical and ab initio Hartree Fock computational results indicate that the highly reactive dienophile tetramethyldisilene, Me{sub 2}Si=SiMe{sub 2}, is an excellent candidate for a novel functionalization of the equator of C{sub 70} via a [2+4] cycloaddition to the 21, 22, 23, 42 carbons. Thermal or photochemical generation of tetramethyldisilene in the presence of C{sub 70} results in similar complex mixtures in which the major product appears to be that of [2+2] cycloaddition to the 7,8 … more
Date: December 31, 1994
Creator: Jacobs, S. J.; Cahill, P. A. & Rohlfing, C. M.
Partner: UNT Libraries Government Documents Department
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UEDGE and DEGAS modeling of the DIII-D scrape-off layer plasma. Revision 1

Description: This paper presents work to develop benchmarked theoretical models of scrape-off-layer (SOL) characteristics in diverted tokamaks by comparing shot simulations using the UEDGE plasma fluid and DEGAS neutral transport codes to measurements of the DIII-D SOL plasma. The experimental data include the radial profiles of n{sub e} T{sub e}, and T{sub i}, the divertor exhaust power, the intensity of H{sub {alpha}} emission, and profiles of the radiated power. A very simple model of the anomalous perpe… more
Date: May 1, 1994
Creator: Fenstermacher, M. E.; Porter, G. D.; Rensink, M. E.; Rognlien, T. D.; Allen, S. L.; Hill, D. N. et al.
Partner: UNT Libraries Government Documents Department
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