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Clinch River breeder reactor sodium fire protection system design and development

Description: To assure the protection of the public and plant equipment, improbable accidents were hypothesized to form the basis for the design of safety systems. One such accident is the postulated failure of the Intermediate Heat Transfer System (IHTS) piping within the Steam Generator Building (SGB), resulting in a large-scale sodium fire. This paper discusses the design and development of plant features to reduce the consequences of the accident to acceptable levels. Additional design solutions were ma… more
Date: April 13, 1984
Creator: Foster, K.W.; Boasso, C.J. & Kaushal, N.N.
Partner: UNT Libraries Government Documents Department
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The Two-Beam Accelerator

Description: A Two-Beam Accelerator, in which one of the beams is an intense low energy beam made to undergo free electron lasing and the other beam is a compact bunch of high energy electrons, is shown to be an interesting possibility for a linear collider.
Date: April 1, 1984
Creator: Hopkins, D. B.; Sessler, A. M. & Wurtele, J. S.
Partner: UNT Libraries Government Documents Department
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HIGH RESOLUTION FOURIER ANALYSIS WITH AUTO-REGRESSIVE LINEAR PREDICTION

Description: Auto-regressive linear prediction is adapted to double the resolution of Angle-Resolved Photoemission Extended Fine Structure (ARPEFS) Fourier transforms. Even with the optimal taper (weighting function), the commonly used taper-and-transform Fourier method has limited resolution: it assumes the signal is zero beyond the limits of the measurement. By seeking the Fourier spectrum of an infinite extent oscillation consistent with the measurements but otherwise having maximum entropy, the errors c… more
Date: April 1, 1984
Creator: Barton, J. & Shirley, D.A.
Partner: UNT Libraries Government Documents Department
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Characterization of fuel distributions in the Three-Mile Island Unit 2 (TMI-2) reactor system by neutron and gamma-ray dosimetry

Description: The resolution of technical issues generated by the accident at Three-Mile Island Unit 2 (TMI-2) will inevitably be of long range benefit. Determination of the fuel debris dispersal in the TMI-2 reactor system represents a major technical issue. In reactor recovery operations, such as for the safe handling and final disposal of TMI-2 waste, quantitative fuel assessments are being conducted throughout the reactor core and primary coolant system.
Date: April 1, 1984
Creator: Gold, R.; Roberts, J. H.; Ruddy, F. H.; Preston, C. C.; McNeece, J. P.; Kaiser, B. J. et al.
Partner: UNT Libraries Government Documents Department
open access

Strength vs toughness relation in Fe-high manganese alloys

Description: Charpy impact tests were performed on the 16 to 36 wt % Mn steels whose tensile properties have already been reported. The effect of Mn content on the ductile-brittle transition behavior was basically identical with other workers' results. However, since the reasons for these phenomena are quite unclear, advanced experimental facts are discussed.
Date: April 1, 1984
Creator: Tomota, Y. & Morris, J.W. Jr.
Partner: UNT Libraries Government Documents Department
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Energy reflection coefficient for H/sup +/ ions at energies between 10 and 80 keV

Description: The energy reflection coefficient for H/sup +/ ions at energies between 10 keV and 80 keV was determined by experiments and by computer calculations. Measurements were made with graphite, Al, Cu, Mo and W. targets. The angle of ion incidence was restricted to 85/sup 0/, 78/sup 0/ and 70/sup 0/ measured from the surface normal. Calculated data were obtained by two different Monte Carlo computer programs (MARLOWE, TRIM). It was found that both the calculated and the measured data scale with the p… more
Date: April 1, 1984
Creator: Chen, C.K.; Bohdansky, J.; Eckstein, W. & Robinson, M.T.
Partner: UNT Libraries Government Documents Department
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Workshop on nuclear dynamics III

Description: Separate entries were made in the data base for the 49 papers presented. (WHK)
Date: April 1, 1984
Creator: Viola, V.E. Jr. (ed.)
Partner: UNT Libraries Government Documents Department
open access

Transuranic resuspension

Description: Characteristics of aged resuspension sources are more uncertain than those of new resuspension sources, which can be investigated using inert-particle controlled-tracer sources. Even though airborne concentrations are low, one aged uniform-area source which can be used for resuspension studies is the accumulated radionuclide fallout in the soil from stratospheric and tropospheric fallout debris. Airborne radionuclide concentrations from this source were investigated at convenient locations on t… more
Date: April 1, 1984
Creator: Sehmel, G.A.
Partner: UNT Libraries Government Documents Department
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New results on radiative J/psi decays from MARK III at SPEAR

Description: Selected topics on radiative decays of the J/psi from MARK III at SPEAR are presented. These topics include the decay J/psi ..-->.. ..gamma..K anti K where the final state resonances f'(1515), theta(1700) and xi(2200) have been analyzed. The decay J/psi ..-->.. (..gamma.. vector vector) is presented in three final states, J/psi ..-->.. ..gamma.. phi phi, ..gamma.. rho rho and ..gamma omega omega.., providing the first measurement of the eta/sub c/ spin-parity (in ..gamma.. phi phi) and evidence… more
Date: April 1, 1984
Creator: Wermes, N.
Partner: UNT Libraries Government Documents Department
open access

Fuel from microalgae lipid products

Description: The large-scale production of microalgae is a promising method of producing a renewable feedstock for a wide variety of fuel products currently refined from crude petroleum. These microalgae-derived products include lipid extraction products (triglycerides, fatty acids, and hydrocarbons) and catalytic conversion products (paraffins and olefins). Microalgal biomass productivity and lipid composition of current experimental systems are estimated at 66.0 metric tons per hectare year and 30% lipid … more
Date: April 1, 1984
Creator: Hill, A.M. & Feinberg, D.A.
Partner: UNT Libraries Government Documents Department
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Historical survey of resonance ionization spectroscopy

Description: We have recently celebrated the 10th birthday of Resonance Ionization Spectroscopy (RIS), and this seems an appropriate time to review the history of its development. Basically, RIS is a photophysics process in which tunable light sources are used to remove a valence electron from an atom of selected atomic number, Z. If appropriate lasers are used as the light source, one electron can be removed from each atom of the selected Z in the laser pulse. This implies that RIS can be a very efficient,… more
Date: April 1, 1984
Creator: Hurst, G.S.
Partner: UNT Libraries Government Documents Department
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Supercollider physics

Description: Several unsolved problems concerning backgrounds prevent one from claiming that some particular signal is clearly observable. One of the most critical issues concerns the observability of W's and Z's from their decays into hadronic jets. Many signals for new physics involve final states with W's or Z's (e.g. the minimal Higgs discussed in D). If one is restricted to observing the W's and Z's via their leptonic modes (which may not be possible for final states involving more than one W) only a s… more
Date: April 1, 1984
Creator: Hinchliffe, I.
Partner: UNT Libraries Government Documents Department
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Kinetics of Red Blood Cell Aggregation: An Example of Geometric Polymerization

Description: The kinetics of the process by which red blood cells aggregate into long cylindrical, and sometimes branched, structures called rouleaux is studied within the framework of both reversible and irreversible addition and condensation polymerization reactions. However, unlike usual polymer kinetics, here we take into account the geometry of the subunits and the geometry of the growing structure. Geometric factors such as the amount of reactive wall area influence the probability of branching and he… more
Date: April 2, 1984
Creator: Perelson, A.S. & Samsel, R.W.
Partner: UNT Libraries Government Documents Department
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Improvement of tubulars used for fracturing in hot dry rock wells

Description: Completion of hot dry rock wells as it is currently envisioned, requires that hydraulic fracturing be used to develop a heat extraction reservoir and to provide low impedance flow paths between the designated water injection and production wells. Recent fracturing operations at measured depths from 11,400 ft to 15,300 ft at the Fenton Hill Hot Dry Rock Geothermal Test Site have resulted in numerous failures of tubulars caused by the high fracturing pressures, corrosive environment and large tre… more
Date: April 1, 1984
Creator: Nicholson, R. W.; Dreesen, D. S. & Turner, W. C.
Partner: UNT Libraries Government Documents Department
open access

Exploration of phase stability in the surfatron accelerator

Description: Proton and electron motion in a laser beat-wave accelerator with a transverse magnetic field is explored. Parameters of stable acceleration are determined analytically and by simulation. The effects of synchrotron radiation on electron acceleration are also explored.
Date: April 1, 1984
Creator: Neuffer, D. V.
Partner: UNT Libraries Government Documents Department
open access

Ion reflection, gyration, and dissipation at supercritical shocks

Description: This brief review emphasizes the following points: (1) Ion reflection is the dominant ion dissipation mechanism at nearly perpendicular, supercritical shocks. (2) An increasing fraction of the ions incident on a supercritical shock is reflected as the Mach number increases. The actual fraction reflected can be predicted using the Rankine-Hugoniot conservation relations. (3) The effective temperature associated with the dispersion in velocity space associated with ion reflection accounts for a l… more
Date: April 1, 1984
Creator: Gosling, J.T. & Robson, A.E.
Partner: UNT Libraries Government Documents Department
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Progress on the LBL ECR heavy ion source

Description: The LBL ECR ion source, which began test operation in January 1984, has already produced a variety of high charge state heavy ion beams of sufficient intensity for cyclotron operation, although actual use must wait for completion of the beam transport system. The source has produced 40 ..mu..A of O/sup 6 +/, 2 ..mu..A of O/sup 7 +/, 40 ..mu..A of Ar/sup 8 +/, and 0.20 ..mu..A of Ar/sup 12 +/. The source development has centered on optimizing source performance with modifications and parameter t… more
Date: April 1, 1984
Creator: Clark, D. J.; Jongen, Y. & Lyneis, C. M.
Partner: UNT Libraries Government Documents Department
open access

Fiber optic sensor applications in field testing

Description: Fiber optic sensors (F.O.S.) are defined, and the application of this technology to measuring various phenomonon in diverse and hostile environments are discussed. F.O.S. advantages and disavantages both technically and operationally are summarized. Three sensor techniques - intensity, interferometric, and polarization - are then discussed in some detail. General environmental instrumentation and controls that support the Nuclear Weapons Test Program at the Nevada Test Site are discussed next t… more
Date: April 11, 1984
Creator: Perea, J. A.
Partner: UNT Libraries Government Documents Department
open access

Present status and probable future capabilities of heavy-ion linear accelerators

Description: The general characteristics of heavy-ion linacs are summarized, with emphasis on the similarities and differences of systems based on different technologies. The main design considerations of superconducting linacs are outlined, the many projects based on this technology are listed, and a new concept for a superconducting injector linac is described. The role of RFQ structures for heavy-ion acceleration is summarized. A concluding section lists some probable applications of heavy-ion accelerato… more
Date: April 30, 1984
Creator: Bollinger, L.M.
Partner: UNT Libraries Government Documents Department
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Overview of raise boring and blind shaft drilling with practical applications and particular reference to design limits for accuracy

Description: The current excavation technology of raise boring and blind shaft drilling operations is reviewed. Examples are presented of recent applications of both downhole boring machines and surface-mounted rotary shaft drilling equipment, with comparisons made of operational characteristics, shaft sizes, and accuracy limits of each system. Raise-boring and box-drilling machines are described and current operating practices of these systems are reviewed. The increased interest in slant hole or inclined … more
Date: April 18, 1984
Creator: Neudecker, J.W. Jr.
Partner: UNT Libraries Government Documents Department
open access

Analysis of the options - rationale for servomanipulator maintenance in future reprocessing plants

Description: The currently available maintenance systems which can be applied, in various combinations, to large-volume in-cell maintenance operations are: (1) contact, (2) overhead cranes, (3) power manipulators, (4) mechanical master/slave manipulators, and (5) servomanipulators. The requirements for reprocessing plant maintenance are reviewed, and the capabilities of remote maintenance systems are described. A basic trade-off analysis of these remote maintenance systems considering reprocessing plant req… more
Date: April 1, 1984
Creator: Herndon, J. N. & Hamel, W. R.
Partner: UNT Libraries Government Documents Department
open access

Risk evaluation - conventional and low level effects of radiation

Description: Any discussion of the risk of exposure to potentially-hazardous agents in the environment inevitably involves the question of whether the dose effect curve is of the threshold or linear, non-threshold type. A principal objective of this presentation is to show that the function is actually two separate relationships, each representing distinctly different functions with differing variables on the axes, and each characteristic of quite different functions with differing variables on the axes, an… more
Date: April 1, 1984
Creator: Bond, V.P. & Varma, M.N.
Partner: UNT Libraries Government Documents Department
open access

CAT reconstruction and potting comparison of a LMFBR fuel bundle

Description: A standard Liquid Metal Fast Breeder Reactor (LMFBR) subassembly used in the Experimental Breeder Reactor II (EBR-II) was investigated, by remote techniques, for fuel bundle distortion by both nondestructive and destructive methods, and the results from both methods were compared. The non-destructive method employed neutron tomography to reconstruct the locations of fuel elements through the use of a maximum entropy reconstruction algorithm known as MENT. The destructive method consisted of ''p… more
Date: April 1, 1984
Creator: Betten, P.R. & Tow, D.M.
Partner: UNT Libraries Government Documents Department
open access

Longitudinal bunching of electrons in the Advanced Test Accelerator

Description: The Advanced Test Accelerator (ATA) is a linear induction accelerator for electrons with design goals of 50 MeV and 10 kA. The accelerator consists of a 2.5 to 3 MeV injector and 170 accelerating units, each unit capable of an applied voltage up to 350 kV. At a number of positions in the accelerator, the return current in the beam pipe is measured as a function of time as the beam passes that position. The measuring device, a four quadrant addition, is somewhat sensitive to the transverse posit… more
Date: April 6, 1984
Creator: Neil, V.K.; Caporaso, G.J. & Paul, A.C.
Partner: UNT Libraries Government Documents Department
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