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Compatibility testing of vitrified waste forms

Description: An experimental program to evaluate candidate metals for use in the fabrication of canisters for long-term storage of vitrified radioactive wastes is described. The long-term compatibility of the candidate metal both with the contained vitrified radioactive waste and with the external environments expected in possible final storage locations will be determined. These tests involve heating combinations of waste forms and canister metals in intimate contact for up to 50,000 hr to accelerate any r… more
Date: March 6, 1978
Creator: Rankin, W.N.
Partner: UNT Libraries Government Documents Department
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Studies of evaporative and conventional cooling of an energy conserving California house

Description: For cooling a Sacramento, California home, (1) higher thermostat settings, (2) insulation (3) ''solar control'' window shades, and (4) the use of an evaporative cooler in the place of a vapor compression cycle air conditioner are studied. A computer program TWOZONE is used to evaluate the effect on energy consumption and peak power. It is calculated that the peak cooling load can be reduced by a factor of 5 or more and the total energy by a factor of 20 or more.
Date: March 1, 1978
Creator: Gates, S.D.; Baughn, J. & Rosenfeld, A.H.
Partner: UNT Libraries Government Documents Department
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Determination of performance criteria for high-level solidified nuclear waste from the commercial nuclear fuel cycle: a probabilistic safety analysis

Description: To minimize the radiological risk from the operation of a waste management system for the safe disposal of high-level waste, performance characteristics of the solidified waste form must be specified. The minimum waste form characteristics that must be specified are the radionuclide volatilization fraction, airborne particulate dispersion fraction, and the aqueous dissolution characteristics. The results indicate that the pre-emplacement environs are more limiting in establishing the waste form… more
Date: March 30, 1978
Creator: Heckman, R.A.
Partner: UNT Libraries Government Documents Department
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Methods and calculations for regional, continental, and global dose assessments from a hypothetical fuel reprocessing facility

Description: The Savannah River Laboratory (SRL) is coordinating an interlaboratory effort to provide, test, and use state-of-the-art methods for calculating the environmental impact to an offsite population from the normal releases of radionuclides during the routine operation of a fuel-reprocessing plant. Results of this effort are the estimated doses to regional, continental, and global populations. Estimates are based upon operation of a hypothetical reprocessing plant at a site in the southeastern Unit… more
Date: March 19, 1978
Creator: Schubert, J. F.; Kern, C. D.; Cooper, R. E. & Watts, J. R.
Partner: UNT Libraries Government Documents Department
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Heat transfer research and power cycle transient modeling

Description: Fine axial flutes enhance heat transfer in vertical shell-and-tube exchangers with water inside the tubes and ammonia evaporating or condensing in layer flow on the shell side. Single-tube experiments with R-11 and ammonia indicate local shell-side coefficients 3 to 5 times those for corresponding smooth tubes. Single-tube experiments with water indicate that at moderate velocities the tube-side coefficients are enhanced by a factor equal to the ratio of fluted-to-smooth surface areas while the… more
Date: March 23, 1977
Creator: Rothfus, R.R. & Neuman, C.P.
Partner: UNT Libraries Government Documents Department
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Sterilizing radiation effects on selected polymers

Description: The mechanism of radiation effects and their industrial applications are discussed for the following classes of polymers: thermoplastics, thermosets, elastomers, films and fibers, and adhesives/coatings/potting compounds. 35 references, 3 tables. (DLC)
Date: March 1, 1979
Creator: Skiens, W. E.
Partner: UNT Libraries Government Documents Department
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Characterization techniques for high quality ICF targets

Description: To avoid the effects of fluid instabilities, stringent requirements must be imposed on the surface quality and wall thickness uniformity of fuel pellets used in Inertial Confinement Fusion compression experiments. A systematic method was developed for specifying the type of defects which must be avoided and for evaluating measurement techniques for their suitability for detecting these defects. A review is given of the techniques currently available and those under development to show the relat… more
Date: March 23, 1979
Creator: Weinstein, B.W. & Hendricks, C.D.
Partner: UNT Libraries Government Documents Department
open access

Document control and information retrieval system for the Fast Flux Test Facility (FFTF)

Description: A description is given of the FFTF Document Control and Information Retrieval System. The system utilizes a mini-computer along with various microfilm equipment and is designed to accommodate an anticipated 50 million pages of text and 750,000 drawings. The system is simple, uncluttered, eliminates duplication, and provides quick retrievability of documents for all technical and administrative personnel.
Date: March 1, 1976
Creator: Theo, M.G.
Partner: UNT Libraries Government Documents Department
open access

Fundamentals of corrosion control design

Description: The development of corrosion control design principles and practice is discussed. It is concluded that by applying simple and straightforward principles to the design of systems, buildings and equipment, operational corrosion problems may be reduced or avoided. These corrosion control design principles are concerned with promoting the use of orientation, layout, and configuration to avoid the holdup of solutions, abrupt flow changes, impingement and stagnant areas. Climatic conditions and terra… more
Date: March 1, 1979
Creator: Perrigo, L.D. & Jensen, G.A.
Partner: UNT Libraries Government Documents Department
open access

CRITICAL FIELD FOR SUPERCONDUCTIVITY AND LOW-TEMPERATURE NORMAL-STATE HEAT CAPACITY OF TUNGSTEN

Description: We have measured the critical magnetic field for superconductivity In tungsten from 5.5 to 15 mK using a {gamma}-ray anisotropy thermometer, and we have measured the heat capacity between 0.35 and 25 K. Analysis of the data gives H{sub 0} = 1.237 Oe for the 0 K critical field, T{sub c} = 16.0 mK for the critical temperature, {gamma} = 1.008 mJ/mole K{sup 2} for the coefficient of the electronic heat capacity, and {Theta}{sub 0} = 383 K for the 0 K Debye temperature. The measured values of the c… more
Date: March 1, 1973
Creator: Triplett, B. B.; Phillips, N. E.; Thorp, T. L.; Shirley, D. A. & Brewer, W. D.
Partner: UNT Libraries Government Documents Department
open access

PREFERENTIAL INHIBITION OF THE GROWTH OF VIRUS-TRANSFORMED CELLS IN CULTURE BY RIFAZONE-82, A NEW RIFAMYCIN DERIVATIVE

Description: Rifazone-8{sub 2} (R-8{sub 2}), a new rifamycin derivative, is shown to preferentially inhibit the growth of virus-transformed chick cells in culture. Macromolecular synthesis and glucose uptake of transformed cells are also appreciably decreased in the presence of low concentrations of R-8{sub 2} where the normal cells appear unaffected. While R-8{sub 2} is shown to be a selective inhibitor of RNA-directed DNA polymerase in vitro, its action on the growth of transformed cells may involve some … more
Date: March 28, 1974
Creator: Bissell, Mina J.; Hatie, Carroll; Tischler, Allan N. & Calvin, Melvin.
Partner: UNT Libraries Government Documents Department
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Neutron - Proton Elastic Scattering from 70-GeV/c to 400-GeV/c

Description: The authors have measured neutron-proton elastic scattering cross sections for four-momentum transfers .17 {le} -t {le} 3.5(GeV/c){sup 2}. The logarithmic slope parameter is found to be consistent with existing proton-proton parameterizations. The data also exhibit a dip in the cross section near -t {approx} 1.4(geV/c){sup 2} for incident neutron momenta above 200 GeV/c. Differences between n-p and p-p cross sections are noted in the region .7 {le} -t {le} 1.4(GeV/c){sup 2}.
Date: March 1, 1978
Creator: DeHaven Jr., C. E.; Ayre, C. A.; Gustafson, H. R.; Jones, L. W.; Longo, M. J.; Ramana Murthy, P. V. et al.
Partner: UNT Libraries Government Documents Department
open access

Multipion production in nuclear collisions

Description: Two aspects of multipion production in nuclear collisions are discussed: the negative pion multiplicity distribution and the ..pi../sup -/..pi../sup -/ correlation function. The emphasis is on how these observables could be used to search for signals of collective phenomena in nuclear collisions. 2 figures.
Date: March 1, 1979
Creator: Gyulassy, M.
Partner: UNT Libraries Government Documents Department
open access

Possible lower limit to licac emittance

Description: Numerical calculations made by several groups have always shown that an asymptotic lower exit emittance exists for linacs operating with high beam current as the input emittance is reduced to zero. In this paper, a mechanism for this limit is shown to be spread in the betatron frequencies of the individual particles due to the combination of space charge and rf gap forces, causing different transverse trajectories correlated with the instaneous longitudinal position of the particle. These traje… more
Date: March 1, 1979
Creator: Staples, J. W. & Jameson, R. A.
Partner: UNT Libraries Government Documents Department
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Multimegawatt neutral beams for tokamaks

Description: Most of the large magnetic confinement experiments today and in the near future use high-power neutral-beam injectors to heat the plasma. This review briefly describes this remarkable technique and summarizes recent results as well as near term expectations. Progress has been so encouraging that it seems probable that tokamaks will achieve scientific breakeven before 1990.
Date: March 1, 1979
Creator: Kunkel, W.B.
Partner: UNT Libraries Government Documents Department
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Measurements and correction of the PEP interaction region quadrupole magnets

Description: Lenses for the intersection regions of PEP must be pure quadrupole over th entire magnet aperture to within 1:10/sup 4/. Correction of the magnet and its end fringe regions to this accuracy requires measurement of the field quality (relative field harmonic component amplitudes at the pole radius) to 1:10/sup 5/ through the 30th harmonic. Equipment developed for these measurements and the techniques used for field correction are described.
Date: March 1, 1979
Creator: Main, R. M.; Tanabe, J. T. & Halbach, K.
Partner: UNT Libraries Government Documents Department
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Charge changing cross sections for heavy ions at energies to 8. 5 MeV/amu. [Preliminary cross sections, electron pickup and loss, 3. 4 to 8. 5 MeV/amu]

Description: Preliminary cross sections for single electron pickup and loss are presented for Fe, Kr and Xe ions at 8.5 MeV/amu and for Ar ions at energies from 3.4 MeV/amu to 8.5 MeV/amu passing through nitrogen gas.
Date: March 1, 1979
Creator: Alonso, J.; Dietrich, D. & Gould, H.
Partner: UNT Libraries Government Documents Department
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Computer calculations of traveling-wave periodic structure properties

Description: The versatility and accuracy of programs such as LALA and specially SUPERFISH to calculate the rf properties of standing-wave cavities for linacs and storage rings is by now well established. Such rf properties include the resonant frequency, the phase shift per periodic length, the E- and H-field configurations, the shunt impedance per unit length and Q. While other programs such as TWAP have existed for some time for traveling-wave structures, the wide availability of SUPERFISH makes it desir… more
Date: March 1, 1979
Creator: Loew, G. A.; Miller, R. H.; Early, R. A. & Bane, K. L.
Partner: UNT Libraries Government Documents Department
open access

Transfer coefficients for terrestrial foodchain: their derivation and limitations

Description: Transfer coefficients to predict the passage of isotopes from the environment to terrestrial foods have been derived for various radionuclides of importance in the nuclear fuel cycle. These data update and extend previously recommended handbook values. We derive transfer coefficients to terrestrial foods and describe the systematics of the derived transfer coefficients. Suggestions are offered for changes in the values of transfer coefficients to terrestrial foods that now appear in federal reg… more
Date: March 30, 1979
Creator: Ng, Y.C.; Colsher, C.S. & Thompson, S.E.
Partner: UNT Libraries Government Documents Department
open access

Intercomparison study of elemental abundances in raw and spent oil shales

Description: Two samples each of raw oil shale and spent oil shale were prepared as reference samples and analyzed by four laboratories using neutron activation analysis, x-ray fluorescence spectrometry, atomic absorption spectroscopy, and other techniques. Excellent agreement was obtained between techniques and laboratories except for the thin-film XRF technique. The %RMS deviations were less than or equal to 10% for 85% of the values. In general, the INAA analysis procedures yielded the most accurate and … more
Date: March 1, 1979
Creator: Fox, J.P.; Evans, J.C.; Wildeman, T.R. & Fruchter, J.S.
Partner: UNT Libraries Government Documents Department
open access

High purity radioactive beams at the bevalac

Description: Peripheral nuclear fragmentation reactions of primary Bevalac heavy ion beams are used to produce secondary beams of radioactive nuclei. The large cross section and small deflection of the projectile fragments lead to high production and delivery efficiency for these beams. Dispersive beam transport allows good separation and purification of the desired secondary beams. /sup 11/C and /sup 19/Ne beams of high purity and good intensity (almost 0.2% of the primary beam current) are presently being… more
Date: March 1, 1979
Creator: Alonso, J. R.; Chatterjee, A. & Tobias, C. A.
Partner: UNT Libraries Government Documents Department
open access

Observation of superstructure in. cap alpha. --U near 43 K

Description: A lattice dynamics study of a ..cap alpha..--U at room temperature revealed a pronounced dip in the ..sigma../sub 4/ LO mode at wavevector zeta = 0.475. Additional studies at low temperatures showed this mode to soften considerably. Below 60 K elastic peaks appear near (h + 1/2, k,l), increasing in intensity to a maximum at 10.4 K, the lowest temperature studied. The current tentative interpretation is the coexistence of two phases of uranium, the ..cap alpha.. phase, and a similar, but slightl… more
Date: March 1, 1979
Creator: Smith, H. G.; Wakabayashi, N.; Crummett, W. P.; Nicklow, R. M.; Lander, G. H. & Fisher, E. S.
Partner: UNT Libraries Government Documents Department
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