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Estimated risk from exposure to radon decay products in US homes

Description: Recent analyses now permit direct estimation of the risks of lung cancer from radon decay products in US homes. Analysis of data from indoor monitoring in single-family homes yields a tentative frequency distribution of annual-average /sup 222/Rn concentrations averaging 55 Bq m/sup -3/ and having 2% of homes exceeding 300 Bq m/sup -3/. Application of the results of occupational epidemiological studies, either directly or using recent advances in lung dosimetry, to indoor exposures suggests tha… more
Date: May 1, 1986
Creator: Nero, A.V. Jr.
Partner: UNT Libraries Government Documents Department
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Experiments and prospects for induction linac drivers

Description: In the last three years, the US program in Heavy Ion Fusion has concentrated on understanding the induction linac approach to a power-plant driver. In this method it is important that the beam current be maximized throughout the accelerator. Consequently, it is crucial to understand the space-charge limit in the AG transport system in the linac and, also, to achieve current amplification during acceleration to keep pace with the kinematical increase of this limit with energy. Experimental resul… more
Date: May 1, 1986
Creator: D., Keefe
Partner: UNT Libraries Government Documents Department
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Conceptual design of the Relativistic Heavy Ion Collider: RHIC

Description: The complete Relativistic Heavy Ion Collider (RHIC) facility will be a complex set of accelerators and beam transfer equipment connecting them. A significant portion of the total facility either exists or is under construction. Two existing Tandem Van de Graaff accelerators will serve for the initial ion acceleration. Ions with a charge of -1 would be accelerated from ground to +15 MV potential, pass through a stripping foil, and accelerate back to ground potential, where they would pass throug… more
Date: May 1, 1986
Partner: UNT Libraries Government Documents Department
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Future accelerator technology

Description: A general discussion is presented of the acceleration of particles. Upon this foundation is built a categorization scheme into which all accelerators can be placed. Special attention is devoted to accelerators which employ a wake-field mechanism and a restricting theorem is examined. It is shown how the theorem may be circumvented. Comments are made on various acceleration schemes.
Date: May 1, 1986
Creator: Sessler, Andrew M.
Partner: UNT Libraries Government Documents Department
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Erosion and Redeposition Experiments in the PISCES Facility

Description: The modification of surfaces during exposure to plasma bombardment is a critical issue in the development of limiter and wall materials for fusion confinement experiments. Controlled studies of the erosion and redeposition of materials during high flux and fluence plasma exposure are now possible in the PISCES facility. PISCES is a continuously operating plasma device which has achieved hydrogen plasma densities of over 10/sup 13/ cm/sup -3/ and electron temperatures of 5 to 24 eV over large ar… more
Date: May 1, 1986
Creator: Goebel, D. M.; Hirooka, Y.; Conn, R. W.; Leung, W. K.; Campbell, G. A.; Bohdansky, J. et al.
Partner: UNT Libraries Government Documents Department
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Nondestructive measurements in support of Waste Isolation Pilot Plant at Rockwell Hanford Operations: problems and methods

Description: The 234-5Z Analytical Laboratory, located in the 200 West Area of the Hanford Site, has been requested to provide waste package measurement capability for both the Plutonium/Uranium Extraction (PUREX) Plant and Plutonium Finishing Plant (PFP) in support of the Waste Isolation Pilot Plant (WIPP) Waste Acceptance Criteria (WAC). The requested WIPP values are sensitive to changes in isotopic distribution. Unfortunately, the determination of the isotopic distribution of an individual waste item or … more
Date: May 1, 1986
Creator: Westsik, G.A.
Partner: UNT Libraries Government Documents Department
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Development of Acoustic Flow Instruments for Solid/Gas Pipe Flows

Description: Two nonintrusive acoustic flow sensing techniques are reported. One technique, passive in nature, simply measures the bandpassed acoustic noise level produced by particle/particle and particle/wall collisions. The noise levels, given in true RMS voltages or in autocorrelations, show a linear relationship to particle velocity but increase with solid concentration. Therefore, the passive technique requires calibration and a separate measure of solid concentration before it can be used to monitor … more
Date: May 1, 1986
Creator: Sheen, S. H. & Raptis, A. C.
Partner: UNT Libraries Government Documents Department
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Anti p-nucleus interaction

Description: Status and future prospects of antiproton-nucleus scattering experiments are presented. These scattering experiments were conducted at antiproton beam momentums of 300 and 600 MeV/c on target nuclei of /sup 6/Li, /sup 12/C, /sup 16/O, /sup 18/O, /sup 40/Ca, /sup 48/Ca, and /sup 208/Pb. Antiproton-proton reactions investigated antiproton-nucleus bound or resonant states in antiproton reactions with d, /sup 6/Li, /sup 12/C, /sup 63/Cu, and /sup 209/Bi. Inelastic scattering experiments investigate… more
Date: May 1, 1986
Creator: Peng, J.C.
Partner: UNT Libraries Government Documents Department
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Cost Reductions in Absorption Chillers. Final Report, June 1984-May 1985

Description: Absorption chillers have great difficulty competing with the electric-driven compression alternative, due in part to modest operating efficiencies and largely to high first costs. This project is an assessment of the possibility of lowering the costs of absorption chillers dramatically by the use of low material intensity in the design of a new generation of these machines. Breakeven costs for absorption chillers, their heat exchangers and heat exchanger materials were established which will al… more
Date: May 1, 1986
Creator: Leigh, R. W.
Partner: UNT Libraries Government Documents Department
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Large-scale high-efficiency air stripper and recovery well network for removing volatile organic chlorocarbons from ground water

Description: The Savannah River Plant (SRP) produces special nuclear materials for the US Government. Since 1958, chemical wastes generated by an aluminum forming/metal finishing process used to manufacture fuel and target assemblies were discharged to a settling basin. This process waste stream contained acids, alkalis, metals, and chlorinated degreasing solvents. In 1981, these solvents, specifically trichloroethylene and tetrachloroethylene, were discovered in monitor wells near the settling basin. A mon… more
Date: May 1, 1986
Creator: Boone, L F; Lorfenz, R; Muska, C F & Steele, J L
Partner: UNT Libraries Government Documents Department
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Description of a high temperature downhole fluid sampler

Description: Downhole fluid samplers have been used for years with limited success in high temperature geothermal wells. This paper discusses the development and operating principles of a high temperature downhole fluid sampler, reliable at obtaining samples at temperatures of up to 350/sup 0/C. The sampler was used successfully for recovering a brine sample from a depth of 10,200 ft in the Salton Sea Scientific Drilling Project well.
Date: May 1, 1986
Creator: Solbau, R.; Weres, O.; Hansen, L. & Dudak, B.
Partner: UNT Libraries Government Documents Department
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SLAC low emittance accelerator test facility

Description: SLAC is proposing to build a new Accelerator Test Facility (ATF) capable of producing a 50 MeV electron beam with an extremely low geometric tranverse emittance (1.5 x 10/sup -10/ rad.m) for the purpose of testing new methods of acceleration. The low emittance will be achieved by assembling a linear accelerator using one standard SLAC three-meter section and a 400 kV electron gun with a very small photocathode (40 microns in diameter). The photocathode will be illuminated from the back by short… more
Date: May 1, 1986
Creator: Loew, G. A.; Miller, R. H. & Sinclair, C. K.
Partner: UNT Libraries Government Documents Department
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Future e/sup +/e/sup -/ linear colliders and beam-beam effects

Description: Numerous concepts, ranging from conventional to highly exotic, hae been proposed for the acceleration of electrons and positrons to very high energies. For any such concept to be viable, it must be possible to produce from it a set of consistent parameters for one of these ''benchmark'' machines. Attention is directed to the choice of parameters for a collider in the 300 GeV energy range, operating at a gradient on the order of 200 MV/m, using X-band power sources to drive a conventional disk-l… more
Date: May 1, 1986
Creator: Wilson, Perry B.
Partner: UNT Libraries Government Documents Department
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Present optics options for TeV colliders

Description: A practical approach for implementing TeV collider optics with high luminosities pounds approx. = 10/sup 33/ (cm/sup 2/ s)/sup -1/ but without large pinch effects is given using current alternatives. Characteristics are considered that constrain the optics and the types and orders of magnets required. A modified linac FoDo cell based on permanent magnet hybrid quadrupoles is discussed. Similarly, a demagnifying, permanent magnet telescopic system that allows variation of beta, eta and energy is… more
Date: May 1, 1986
Creator: Spencer, J.E.
Partner: UNT Libraries Government Documents Department
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Canopy hot-spot as crop identifier

Description: Illuminating any reflective rough or structured surface by a directional light source results in an angular reflectance distribution that shows a narrow peak in the direction of retro-reflection. This is called the Heiligenschein or hot-spot of vegetation canopies and is caused by mutual shading of leaves. The angular intensity distribution of the hot-spot, its brightness and slope, are therefore indicators of the plant's geometry. We propose the use of hot-spot characteristics as crop identifi… more
Date: May 1, 1986
Creator: Gerstl, S. A. W.; Simmer, C. & Powers, B. J.
Partner: UNT Libraries Government Documents Department
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ALT-I Pump Limiter Experiments With ICRF Heating on TEXTOR. Revision.

Description: The ALT-I (Advanced Limiter Test-I) was installed on TEXTOR to benchmark the ability of a pump limiter as an efficient particle collector and to determine the physics of pump limiter operation. Experiments continue to show its capability of removing particles from the plasma edge under different operating conditions. In this paper we report first experimental results using ALT-I in conjunction with high power ICRF heating. The particle removal rate increases as the edge flux and density increas… more
Date: May 1, 1986
Creator: Leung, W. K.; Goebel, D. M.; Conn, R. W.; Dippel, K. H.; Finken, K. H. & Thomas, G. J.
Partner: UNT Libraries Government Documents Department
open access

ALT-I Pump Limiter Experiments With ICRF Heating on TEXTOR

Description: The ALT-I (Advanced Limiter Test-I) was installed on TEXTOR to benchmark the ability of a pump limiter as an efficient particle collector and to determine the physics of pump limiter operation. Experiments continue to show its capability of removing particles from the plasma edge under different operating conditions. In this paper we report first experimental results using ALT-I in conjunction with high power ICRF heating. The particle removal rate increases as the edge flux and density increas… more
Date: May 1, 1986
Creator: Leung, W. K.; Goebel, D. M.; Conn, R. W.; Dippel, K. H.; Finken, K. H. & Thomas, G. J.
Partner: UNT Libraries Government Documents Department
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Wind Load Reduction for Heliostats

Description: This report presents the results of wind-tunnel tests supported through the Solar Energy Research Institute (SERI) by the Office of Solar Thermal Technology of the US Department of Energy as part of the SERI research effort on innovative concentrators. As gravity loads on drive mechanisms are reduced through stretched-membrane technology, the wind-load contribution of the required drive capacity increases in percentage. Reduction of wind loads can provide economy in support structure and helios… more
Date: May 1, 1986
Creator: Peterka, J. A.; Hosoya, N.; Bienkiewicz, B. & Cermak, J. E.
Partner: UNT Libraries Government Documents Department
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Geology of the Platanares Geothermal Site, Departamento De Copan, Honduras, Central America. Field Report

Description: Platanares is located 16 km west of Santa Rosa de Copan, Honduras, along the Quebrada del Agua Caliente. The thermal manifestations are along faults in tuffs, tuffaceous sedimentary rocks, and lavas of the Padre Miguel Group. These tuffs are silicified near the faults, are fractured, and may provide the fracture permeability necessary for the hydrothermal system. Tuffs are overlain by a wedge of terrace gravels up to 60 m thick. Quaternary conglomerates of the Quebrada del Agua Caliente are cem… more
Date: May 1, 1986
Creator: Heiken, G.; Eppler, D.; Wohletz, K.; Flores, W.; Ramos, N. & Ritchie, A.
Partner: UNT Libraries Government Documents Department
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Evaluation of alternative treatments for spent fuel rod consolidation wastes and other miscellaneous commercial transuranic wastes

Description: Eight alternative treatments (and four subalternatives) are considered for both existing commercial transuranic wastes and future wastes from spent fuel consolidation. Waste treatment is assumed to occur at a hypothetical central treatment facility (a Monitored Retrieval Storage facility was used as a reference). Disposal in a geologic repository is also assumed. The cost, process characteristics, and waste form characteristics are evaluated for each waste treatment alternative. The evaluation … more
Date: May 1, 1986
Creator: Ross, W.A.; Schneider, K.J.; Oma, K.H.; Smith, R.I. & Bunnell, L.R.
Partner: UNT Libraries Government Documents Department
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Lamb Shift in Heliumlike Uranium (U/sup 90 +/)

Description: We report a preliminary value of the Lamb shift in two-electron heliumlike U/sup 90 +/ of 69.1 (8.0) eV which is in agreement with the theoretical value of 75 eV for the one-electron Lamb shift at Z = 92. 8 refs., 2 figs.
Date: May 1, 1986
Creator: Munger, C. & Gould, H.
Partner: UNT Libraries Government Documents Department
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Progress at LAMPF. Progress report, January-December 1985

Description: Research performed at LAMPF during 1985 is reported in the areas of: nuclear and particle physics; atomic and molecular physics; materials science; radiation-effects studies; biomedical research and instrumentation; nuclear chemistry; radioisotope production; and physics theory. Also reported are the status of LAMPF-II, facility development work, and accelerator operations. (LEW)
Date: May 1, 1986
Creator: Allred, J.C. & Talley, B. (eds.)
Partner: UNT Libraries Government Documents Department
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In situ vitrification large-scale operational acceptance test analysis

Description: A thermal treatment process is currently under study to provide possible enhancement of in-place stabilization of transuranic and chemically contaminated soil sites. The process is known as in situ vitrification (ISV). In situ vitrification is a remedial action process that destroys solid and liquid organic contaminants and incorporates radionuclides into a glass-like material that renders contaminants substantially less mobile and less likely to impact the environment. A large-scale operationa… more
Date: May 1, 1986
Creator: Buelt, J.L. & Carter, J.G.
Partner: UNT Libraries Government Documents Department
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Space nuclear safety program. Progress report, October-December 1984

Description: This quarterly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems carried out for the Office of Special Nuclear Projects of the US Department of Energy by Los Alamos National Laboratory. Most of the studies discussed are ongoing; the results and conclusions described may change as the work progresses.
Date: May 1, 1986
Creator: George, T.G. (comp.)
Partner: UNT Libraries Government Documents Department
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