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Business developments of nonthermal solar technologies

Description: Information on the developments of nonthermal solar technologies is presented. The focus is on the success of wind energy conversion systems (WECS) and photovoltaics. Detailed information on the installed generating capacity, market sectors, financing sources, systems costs and warranties of WECS and photovoltaic systems is summarized. (BCS)
Date: October 1, 1985
Creator: Smith, S.A.; Watts, R.L. & Williams, T.A.
Partner: UNT Libraries Government Documents Department
open access

Validation of KENO V. a. and two cross-section libraries for criticality calculations of low-enriched uranium systems

Description: The SCALE code system, utilizing the Monte Carlo computer code KENO V.a, was employed to calculate 37 critical experiments. The critical assemblies had /sup 235/U enrichments of 5% or less and cover a variety of geometries and materials. Values of k/sub eff/ were calculated using two different results using either of the cross-section libraries. The 16-energy-group Hansen-Roach and the 27-energy-group ENDF/B-IV cross-section libraries, available in SCALE, were used in this validation study, and… more
Date: July 1, 1985
Creator: Easter, M.E.
Partner: UNT Libraries Government Documents Department
open access

Solid modeling research at Lawrence Livermore National Laboratory: 1982-1985

Description: The Lawrence Livermore National Laboratory has sponsored solid modeling research for the past four years to assess this new technology and to determine its potential benefits to the Nuclear Weapons Complex. We summarize here the results of five projects implemented during our effort. First, we have installed two solid modeler codes, TIPS-1 (Technical Information Processing System-1) and PADL-2 (Part and Assembly Description Language), on the Laboratory's CRAY-1 computers. Further, we have exten… more
Date: September 1, 1985
Creator: Kalibjian, J. R.
Partner: UNT Libraries Government Documents Department
open access

Characterization of the solid, airborne materials created when UF/sub 6/ reacts with moist air flowing in single-pass mode

Description: A series of experiments has been performed in which UF/sub 6/ was released into flowing air in order to characterize the solid particulate material produced under non-static conditions. In two of the experiments, the aerosol was allowed to stagnate in a static chamber after release and examined further but in the other experiments characterization was done only on material collected a few seconds after release. Transmission electron microscopy and mass measurement by cascaded impactor were used… more
Date: October 1, 1985
Creator: Pickrell, P. W.
Partner: UNT Libraries Government Documents Department
open access

Nuclear spin polarization of solid deuterium-tritium

Description: It appears that parallel alignment of deuteron and triton magnetic moments increases the cross section of the nuclear reaction T(d,n) He/sup 4/ by 50%, thereby promising a laser driver of perhaps half the original energy. Both ''brute-force'' and dynamic nuclear polarization are considered, and the many potential problems of the latter are considered. High nuclear polarization by the dynamic technique requires a small nucleus-to-unpaired electron ratio, a long longitudinal nuclear relaxation ti… more
Date: January 1, 1985
Creator: Souers, P. C.; Fearon, E. M.; Mapoles, E. R.; Gaines, J. R.; Sater, J. D. & Fedders, P. A.
Partner: UNT Libraries Government Documents Department
open access

Control of indoor radon and radon progeny concentrations

Description: There are three general categories of techniques for the control of radon and radon progeny concentrations in indoor air - restriction of radon entry, reduction of indoor radon concentrations by ventilation or air cleaning, and removal of airborne radon progeny. The predominant radon entry process in most residences appears to be pressure driven flow of soil gas through cracks or other openings in the basement, slab, or subfloor. Sealing these openings or ventilation of the subslab or subfloor … more
Date: May 1, 1985
Creator: Sextro, R.G.
Partner: UNT Libraries Government Documents Department
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Extraction and recovery of plutonium and americium from nitric acid waste solutions by the TRUEX process - continuing development studies

Description: This report summarizes the work done to date on the application of the TRUEX solvent extraction process for removing and separately recovering plutonium and americium from a nitric acid waste solution containing these elements, uranium, and a complement of inert metal ions. This simulated waste stream is typical of a raffinate from a tributyl phosphate (TBP)-based solvent extraction process for removing uranium and plutonium from dissolved plutonium-containing metallurgical scrap. The TRUEX pro… more
Date: September 1, 1985
Creator: Leonard, R. A.; Vandegrift, G. F.; Kalina, D. G.; Fischer, D. F.; Bane, R. W.; Burris, L. et al.
Partner: UNT Libraries Government Documents Department
open access

TOPAZ - the transient one-dimensional pipe flow analyzer: code validation and sample problems

Description: TOPAZ is a ''user friendly'' computer code for modeling the one-dimensional-transient physics of multi-species gas transfer in arbitrary arrangements of pipes, valves, vessels, and flow branches. This document presents a series of sample problems designed to aid potential users in creating TOPAZ input files. To the extent possible, sample problems were selected for which analytical solutions currently exist. TOPAZ comparisons with such solutions are intended to provide a measure of code validat… more
Date: October 1, 1985
Creator: Winters, W.S.
Partner: UNT Libraries Government Documents Department
open access

Feynmann variance-to-mean method

Description: The Feynmann and other fluctuation techniques have been shown to be useful for determining the multiplication of subcritical systems. The moments of the counting distribution from neutron detectors is analyzed to yield the multiplication value. We present the methodology and some selected applications and results and comparisons with Monte Carlo calculations.
Date: January 1, 1985
Creator: Dowdy, E. J.; Hansen, G. E. & Robba, A. A.
Partner: UNT Libraries Government Documents Department
open access

Status of Oak Ridge National Laboratory fusion activities

Description: This review covers the following research being carried out at ORNL: (1) confinement experiments such as ATF, EBT, and STX, (2) theory, (3) atomic physics, (4) shielding, (5) technology developments on superconducting magnets, pellet injection, rf plasma heating, and materials, and (6) fusion engineering design center. (MOW)
Date: January 1, 1985
Creator: Rosenthal, M.W.
Partner: UNT Libraries Government Documents Department
open access

On-line uranium determination using remote fiber fluorimetry

Description: Remote Fiber Fluorimetry (RFF) is being developed at Savannah River Laboratory for the on-line determination of uranium in plant process streams. A prototype system suitable for plant use has been designed and is being built. RFF has four major components: a laser, an optical fiber, an optrode, and a detector. Essentially, an optical fiber carries laser radiation from a laser to a process sampling point. An optrode (the optical analog of an electrode) couples the laser light into a sample solut… more
Date: January 1, 1985
Creator: Malstrom, R A
Partner: UNT Libraries Government Documents Department
open access

Muon number violating rare decays

Description: The experimental status of rare decays that violate muon number conservation is summarized, giving upper limits of their branching ratios with 90% confidence. All of the muon experiments share several common elements. They aim to identify the process sought through the measurement of kinematical variables. Large solid angles are required to reach very high sensitivities. The need for good resolution stresses technology in high-rate environments to suppress backgrounds. In order to understand th… more
Date: January 1, 1985
Creator: Cooper, M.D.
Partner: UNT Libraries Government Documents Department
open access

Two phase cooling for superconducting magnets

Description: A closed circuit tubular cooling system for superconducting magnets offers advantages of limiting boiloff and containing high pressures during quenches. Proper location of automatic valves to lower pressures and protect the refrigerator in the event of quenches is described. Theoretical arguments and exprimental evidence are given against a previously suggested method to determine He two phase flow regimes. If loss of flow occurs due to some types of refrigeration failure and transfer lines hav… more
Date: August 1, 1985
Creator: Eberhard, P. H.; Gibson, G. A.; Green, M. A.; Ross, R. R.; Smits, R. G.; Taylor, J. D. et al.
Partner: UNT Libraries Government Documents Department
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Heavy ion induced transfer reactions: a spectroscopic tool for high spin states

Description: By selectively choosing the appropriate heavy ion transfer reaction one can access high spin states. As a demonstration of the technique two proton and two neutron states of high spin (both yrast and non-yrast) in Nd nuclei have been identified. These spectroscopic results have yielded the first direct information about the configuration of some of these states. 11 refs., 6 figs. (WRF)
Date: January 1, 1985
Creator: Bond, P.D.
Partner: UNT Libraries Government Documents Department
open access

Molten salt freeze seal. Final report

Description: This report documents the results of the testing performed at Sandia National Laboratory, Albuquerque, New Mexico, on the applicability of a sodium freeze seal type valve stem in a molten salt environment. The freeze seal tests consisted of cycling the valve stem at set temperature intervals, checking the temperature distribution for freeze plug location, and verifying the actuator forces. In addition to the test results, this report also documents the engineering analysis and other tasks perfo… more
Date: August 1, 1985
Creator: Corugedo, J.J.
Partner: UNT Libraries Government Documents Department
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Hot dry rock Phase II reservoir engineering

Description: Early attempts to hydraulically fracture and connect two wells drilled at the Hot Dry Rock site at Fenton Hill in New Mexico failed. Microearthquakes triggered by hydraulic fracturing indicated that the fracture zones grew in unexpected directions. Consequently one of the wells was sidetracked at a depth of 2.9 km; was redrilled into the zones of most intense microseismic activity; and a flow connection was achieved. Hydraulic communication was improved by supplemental fracturing using recently… more
Date: January 1, 1985
Creator: Murphy, H.D.
Partner: UNT Libraries Government Documents Department
open access

Critical current studies on fine filamentary NbTi accelerator wires

Description: The magnets for the Superconductig Super Collider, a high energy proton colliding beam accelerator, require a superconductor with very high current density (>2400 A/mm/sup 2/ at 5 T) and very small filaments (approx. 2..mu..m in diameter). Previous work has shown that by controlling the formation of Cu/sub 4/Ti compound particles on the filament surfaces it is possible to make fine filamentary NbTi wire with high critical current density. The performance of multi-filamentary wire is characteriz… more
Date: January 1, 1985
Creator: Garber, M.; Suenaga, M.; Sampson, W.B. & Sabatini, R.L.
Partner: UNT Libraries Government Documents Department
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Three computer codes for safety and stability of large superconducting magnets

Description: For analyzing the safety and stability of large superconducting magnets, three computer codes TASS, SHORTURN, and SSICC have been developed, applicable to bath-cooled magnets, bath-cooled magnets with shorted turns, and magnets with internally cooled conductors respectively. The TASS code is described, and the use of the three codes is reviewed.
Date: January 1, 1985
Creator: Turner, L. R.
Partner: UNT Libraries Government Documents Department
open access

ICRF wave propagation and absorption in tokamak and mirror magnetic fields: a full-wave calculation

Description: Global solutions for the ion cyclotron resonant frequency (ICRF) wave fields in a straight tokamak with rotational transform and a poloidally symmetric mirror are calculated in the cold plasma limit. The component of the wave electric field parallel to vector Bis assumed zero. Symmetry in each problem allows Fourier decomposition in one ignorable coordinate, and the remaining set of two coupled, two-dimensional partial differential equations is solved by finite differencing. Energy absorption a… more
Date: January 1, 1985
Creator: Jaeger, E. F.; Batchelor, D. B.; Weitzner, H. & Whealton, J. H.
Partner: UNT Libraries Government Documents Department
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Diffraction scattering and the parton model in QCD

Description: Arguments are presented that the validity of the parton model for hadron scattering in QCD is directly related to the occurrence of the Critical Pomeron description of diffraction scattering. An attractive route suggested for Electroweak and Grand Unification is also briefly described.
Date: January 1, 1985
Creator: White, A.
Partner: UNT Libraries Government Documents Department
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Synthesis of /sup 13/C-enriched carbohydrates as chiral synthons for labeled compounds

Description: Methods have been developed to synthesize labeled chiral compounds from labeled carbohydrates. During the course of these investigations, we have adapted both chemical and enzymatic methods for the large-scale interconversion of labeled aldoses and ketoses. 6 refs.
Date: January 1, 1985
Creator: Walker, T. E.; Unkefer, C. J. & Ehler, D. S.
Partner: UNT Libraries Government Documents Department
open access

DOE Site-Specific Threat Assessment

Description: A facility manager faced with the challenges of protecting a nuclear facility against potential threats must consider the likelihood and consequences of such threats, know the capabilities of the facility safeguards and security systems, and make informed decisions about the cost-effectivness of safeguards and security upgrades. To help meet these challenges, the San Francisco Operations Office of the Department of Energy, in conjunction with the Lawrence Livermore Laboratory, has developed a s… more
Date: July 12, 1985
Creator: West, D. J.; Al-Ayat, R. A. & Judd, B. R.
Partner: UNT Libraries Government Documents Department
open access

Energy conservation potential of surface modification technologies

Description: This report assesses the energy conservation impact of surface modification technologies on the metalworking industries. The energy conservation impact of surface modification technologies on the metalworking industries is assessed by estimating their friction and wear tribological sinks and the subsequent reduction in these sinks when surface modified tools are used. Ion implantation, coatings, and laser and electron beam surface modifications are considered.
Date: September 1, 1985
Creator: Le, H.K.; Horne, D.M. & Silberglitt, R.S.
Partner: UNT Libraries Government Documents Department
open access

SOLERAS - Solar Controlled Environment Agriculture Project. Final report, Volume 5. Science Applications, Incorporated system requirements definition

Description: This report sets forth the system requirements for a Solar Controlled-Environment Agriculture System (SCEAS) Project. In the report a conceptual baseline system description for an engineering test facility is given. This baseline system employs a fluid roof/roof filter in combination with a large storage tank and a ground water heat exchanger in order to provide cooling and heating as needed. Desalination is accomplished by pretreatment followed by reverse osmosis. Energy is provided by means o… more
Date: January 1, 1985
Partner: UNT Libraries Government Documents Department
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