UNT Libraries Government Documents Department - 222 Matching Results

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S-11 and S-20 photocathode research activity. Rev. 1

Description: The S-1 semi-transparent photocathode is the only one that can be used to study the 1.06 ..mu..m neodynium laser pulses of less than 10 ps duration. We first reviewed the recent results obtained at the Paris Observatory (research sponsored by the CEA), and then we tried to determine the role of the main constituents and their contributions in photoemission.
Date: August 27, 1984
Creator: Gex, F.; Huen, T. & Kalibjian, R.
Item Type: Refine your search to only Report
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O(18) revived

Description: We present an O(18) theory which is pertubatively unifiable and which accounts for the absence of right-handed families in the low-energy world. The model gives rise to dramatic predictions for proton decay and for the Z/sup 0/ width.
Date: August 1, 1984
Creator: Bagger, J.; Dimopoulos, S. & Masso, E.
Item Type: Refine your search to only Article
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Ab initio calculations of the optical properties of ions in glass

Description: There is interest in the optical properties of ions in insulating glasses for various applications. This paper addresses the task of predicting optical properties of ions in glass from first principles given only the physics of the constituent atoms. The prospects for developing such ab initio-computation procedures are gleaned from examining the progress made in understanding the properties of dopant ions in crystals. It is probable that in 20 years, there will be reliable procedures for predi… more
Date: August 1, 1984
Creator: Weber, M. J.
Item Type: Refine your search to only Article
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Absolute dipole gamma-ray strength functions for /sup 176/Lu

Description: We have derived absolute dipole strength-function information for /sup 176/Lu from an average resonance capture study of /sup 175/Lu with 2-keV neutrons, and from neutron capture cross-section measurements with neutrons from 30 keV to about 1 MeV. We found that we needed to increase our previous estimate of the relative M1/E1 strengths near 5 MeV by a factor of 3, and to revise downward the absolute magnitude of our E1 strength function. We accomplished the latter, while still maintaining conti… more
Date: August 29, 1984
Creator: Gardner, D. G.; Gardner, M. A. & Hoff, R. W.
Item Type: Refine your search to only Article
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Accelerator and Fusion Research Division: summary of activities, 1983

Description: The activities described in this summary of the Accelerator and Fusion Research Division are diverse, yet united by a common theme: it is our purpose to explore technologically advanced techniques for the production, acceleration, or transport of high-energy beams. These beams may be the heavy ions of interest in nuclear science, medical research, and heavy-ion inertial-confinement fusion; they may be beams of deuterium and hydrogen atoms, used to heat and confine plasmas in magnetic fusion exp… more
Date: August 1, 1984
Item Type: Refine your search to only Report
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Achieving cold antiprotons in a Penning trap

Description: The current state of proton/electron trapping sensitivity at Washington requires only small numbers (less than or equal to 100) of anti p be trapped in order to achieve high signal to noise ratios. We therefore investigated a anti p trapping scheme based on stopping foils which, in the simplest case, require no auxiliary decelerator/cooler past a LEAR (or equivalent) stage. Cooling of the trapped particles could be accomplished via the damping provided by an external resistor as in all of the o… more
Date: August 1, 1984
Creator: Kells, W.; Gabrielse, G. & Helmerson, K.
Item Type: Refine your search to only Article
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Advances in HTGR spent fuel treatment technology

Description: GA Technologies, Inc. has been investigating the burning of spent reactor graphite under Department of Energy sponsorship since 1969. Several deep fluidized bed burners have been used at the GA pilot plant to develop graphite burning techniques for both spent fuel recovery and volume reduction for waste disposal. Since 1982 this technology has been extended to include more efficient circulating bed burners. This paper includes updates on high-temperature gas-cooled reactor fuel cycle options an… more
Date: August 1, 1984
Creator: Holder, N. D. & Lessig, W. S.
Item Type: Refine your search to only Article
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Airport System Development

Description: A study by the Office of Technology Assessment (OTA) that "examines present conditions and future needs of the Nation's airports, with emphasis on possible solutions to problems of operational capacity and air travel delay" (p. iii).
Date: August 1984
Creator: United States. Congress. Office of Technology Assessment.
Item Type: Refine your search to only Report
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Analysis of potential groundwater contamination in the vicinity of the Weldon Spring Raffinate Pits site, Weldon Spring, Missouri

Description: Results of the analysis of contaminant migration beneath the raffinate pits at the Weldon Spring Raffinate Pits site indicate that during a 10,000-year time period, the maximum concentrations in the water immediately beneath the pit bottoms would be about 4600 pCi/L of radium-226 (Pit 3) and about 12,000 pCi/L of uranium-238 (Pit 1); these concentrations would occur at the centers of the pit bottoms. Based on the assumptions used in this study, the radioactive contaminants in the pits would mig… more
Date: August 1, 1984
Creator: Tsai, S. Y.; Peterson, J. M. & Winters, M. C. B.
Item Type: Refine your search to only Report
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ANL analysis of ZPPR-13A

Description: The ZPPR-13 experiments provide basic physics data for radial heterogeneous LMFBR cores of approximately 700MWe size. Assemblies ZPPR-13A, ZPPR-13B and ZPPR-13C comprised the JUPITER-II cooperative program between the U.S. Department of Energy (US DOE) and PNC of Japan. The measurements were made between August 1982 and April 1984. The core designs and the measurements were planned jointly by the two parties with substantial input from U.S. industrial interests to ensure coverage of the design … more
Date: August 9, 1984
Creator: Collins, P. J. & Brumbach, S. B.
Item Type: Refine your search to only Report
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Annual Research Summary

Description: Report on activities of the Division of Biological and Medical Research in carcinogenesis, low level radiation, molecular biology, and toxicology.
Date: August 1984
Creator: Argonne National Laboratory. Division of Biological and Medical Research.
Item Type: Refine your search to only Report
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Area 3, SRC-II coal slurry preheater studies report for the technical data analysis program

Description: This report reviews the raw data gathered from the Preheater B test runs at Ft. Lewis, and also the Preheater B results presented in the Solvent Refined Coal (SRC) Process Final Report, Volumes 1 and 2 of Slurry Preheater Design, SRC-II Process and the Ft. Lewis Slurry Preheater Data Analysis, 1 1/2 Inch Coil by Gulf Science and Technology Corporation of Pittsburgh, Pennsylvania. attempts were made to correlate several variables not previously considered with slurry viscosity and thermal conduc… more
Date: August 1, 1984
Item Type: Refine your search to only Report
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Assessing the performance of geologic repositories for nuclear waste

Description: Predictions of the rate of release of radionuclides from waste packages, their rates of dissolution in groundwater, their hydrogeologic transport to the environment, and their ultimate uptake by people are summarized. Both the details of performance assessment and conclusions on performance are affected by what performance criteria are adopted. 9 references, 1 figure, 1 table.
Date: August 1, 1984
Creator: Pigford, T.H.
Item Type: Refine your search to only Report
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AT and T Divestiture: Restructuring the U.S. Domestic Telephone Industry

Description: On January 8, 1982, the Justice Department and the American Telephone and Telegraph Company announced the settlement of the Government's seven year old antitrust suit against AT&T. Nineteen months later, in August 1983, U.S. District Court Judge Harold Greene gave final approval to the AT& T divestiture agreement. The breakup of AT&T will affect every aspect of the U.S. domestic telephone industry from the yellow pages to the manufacture of telephones. AT&T officially spun off its 22 local oper… more
Date: August 10, 1984
Creator: Library of Congress. Congressional Research Service.
Item Type: Refine your search to only Report
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The Atomic Spectrum of Plutonium

Description: This report contains plutonium wavelengths, energy level classifications, and other spectroscopic data accumulated over the past twenty years at Laboratoire Aime Cotton (LAC) Argonne National Laboratory (ANL), and Lawrence Livermore National Laboratory (LLNL). The primary purpose was term analysis: deriving the energy levels in terms of quantum numbers and electron configurations, and evaluating the Slater-Condon and other parameters from the levels.
Date: August 1984
Creator: Blaise, Jean; Fred, Mark & Gutmacher, Ralph G.
Item Type: Refine your search to only Report
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Atomic spectrum of plutonium

Description: This report contains plutonium wavelengths, energy level classifications, and other spectroscopic data accumulated over the past twenty years at Laboratoire Aime Cotton (LAC) Argonne National Laboratory (ANL), and Lawrence Livermore National Laboratory (LLNL). The primary purpose was term analysis: deriving the energy levels in terms of quantum numbers and electron configurations, and evaluating the Slater-Condon and other parameters from the levels.
Date: August 1, 1984
Creator: Blaise, J.; Fred, M. & Gutmacher, R.G.
Item Type: Refine your search to only Report
open access

Beam pipe design, wall-heating, and collective instability constraints for LAMPF II

Description: The rapidly changing magnetic fields of the LAMPF II rapid-cycling synchrotron will induce electric fields that will induce ohmic heating by wall currents in a beam pipe placed within these rapidly changing fields. A conducting beam pipe is required to remove high-frequency collective instabilities. Some compromise in design is required so that a beam pipe with low conductivity at the LAMPF II cycling frequency (f = 30 to 60 Hz) and high conductivity at high frequencies (f greater than or equal… more
Date: August 1, 1984
Creator: Neuffer, David
Item Type: Refine your search to only Report
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Beta Particle Measurement and Dosimetry Requirements at NRC-Licensed Facilities

Description: Researchers from Pacific Northwest Laboratroy (PNL) have conducted beta radiation measurements under laboratory and field conditions to assess the degree of the measurement problem and offer suggestions for possible remedies. The primary measurement systems selected for use in this study were the silicon (Si) surface barrier spectrometer system and the multielement beta dosimeter. Three boiling water reactors (BWRs), two pressurized water reactors (PWRs), and one fuel fabrication facility were … more
Date: August 1, 1984
Creator: Rathbun, L. A.; Endres, G. W. R.; Fox, R. A.; Roberson, P. L. & Scherpelz, R. I.
Item Type: Refine your search to only Report
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Binary generating units at Kelly Hot Springs, California

Description: Temperature measurements in the wells drilled in the area around Kelly Hot Spring in northeastern California indicate the presence of an extensive aquifer covering several square miles at 1600 to 3300 feet in depth. The water temperature in the aquifer is in the range of 212/sup 0/ to 239/sup 0/F. No flow tests of wells in the area have been carried out. A proposal from Ormat Turbines, Ltd. for a binary power plant generating 1500 kW has been submitted to the owners of the area around Kelly Hot… more
Date: August 1, 1984
Creator: Karlsson, T.
Item Type: Refine your search to only Report
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Biomass Thermochemical Conversion Program. 1983 Annual report

Description: Highlights of progress achieved in the program of thermochemical conversion of biomass into clean fuels during 1983 are summarized. Gasification research projects include: production of a medium-Btu gas without using purified oxygen at Battelle-Columbus Laboratories; high pressure (up to 500 psia) steam-oxygen gasification of biomass in a fluidized bed reactor at IGT; producing synthesis gas via catalytic gasification at PNL; indirect reactor heating methods at the Univ. of Missouri-Rolla and T… more
Date: August 1, 1984
Creator: Schiefelbein, G. F.; Stevens, D. J. & Gerber, M. A.
Item Type: Refine your search to only Report
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Brightness Limitations in Multi-Kiloampere Electron Beam Sources

Description: Heuristic relationships such as the Lawson-Penner criterion, used to scale Free Electron Laser (FEL) amplifier gain and efficiency over orders of magnitude in beam current and brightness, have no fundamental basis. The brightness of a given source is set by practical design choices such as peak voltage, cathode type, gun electrode geometry, and focusing field topology. The design of low emittance, high current electron guns has received considerable attention at Livermore over the past few year… more
Date: August 24, 1984
Creator: Barletta, W. A.; Boyd, J. K.; Paul, A. C. & Prono, D. S.
Item Type: Refine your search to only Article
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Bunch coalescing in the main ring to form intense proton and antiproton bunches without RF counterphasing

Description: Both the proton and antiproton bunches which will collide in the Tevatron have longitudinal emittance greater than can be accelerated by the main ring from 8 GeV without large loss and emittance growth. We have previously described the technique of combining several smaller bunches at the Tevatron injection energy with little increase in the total emittance and negligible loss. This technique requires adiabatic debunching of several adjacent 53 MHz bunches by smooth reduction of the RF voltage … more
Date: August 9, 1984
Creator: Griffin, J. E.; MacLachlan, J. A.; Nicholls, G. N. & Qian, Z. B.
Item Type: Refine your search to only Report
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