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Management of intermediate-level radioactive wastes in the United States

Description: While used extensively, the term intermediate-level waste is not a clearly defined waste category. Assuming the ILW includes all radioactive wastes requiring shielding but not ordinarily included in a high-level waste canister, its major sources include power plant operations, spent fuel storage, and spent fuel reprocessing. While the volume is approx. 10/sup 2/ greater than that of high-level waste, ILW contains only approx. 1% of the radioactivity. Power plant waste, constituting approx. 87% … more
Date: July 1, 1980
Creator: Aaberg, R.L.; Lakey, L.T. & Greenborg, J.
Partner: UNT Libraries Government Documents Department
open access

Hot dry rock geothermal reservoir engineering

Description: Two wells, GT-2 and EE-1, were originally drilled to a depth of 9600 ft (2.93 km) and 10,000 ft (3.05 km), respectively, and, after some difficulties, including redrilling of the bottom portion of GT-2, a good fracture connection was made between EE-1 and GT-2B, as the modified GT-2 was called. The circulation system was studied extensively for the purpose of establishing a number of fracture properties. Techniques were developed to determine orientation, geometry, heat exchange area, volume, f… more
Date: January 1, 1980
Creator: Aamodt, R. L.
Partner: UNT Libraries Government Documents Department
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DIFFUSION IN VERY CHAOTIC HAMILTONIAN SYSTEMS

Description: We study nonintegrable Hamiltonian dynamics: H(I,{theta}}) = H{sub 0}(I)+kH{sub 1}(I,{theta}) for large k; that is, far from integrability. An integral representation is given for the conditional probability P(I,{theta},t|I{sub 0},{theta}{sub 0},t{sub 0}) that the system is at I,{theta} at t, given it was at I{sub 0},{theta}{sub 0} at t{sub 0}. By discretizing time into steps of size {epsilon}, we show how to evatuate physical observables for large k, fixed {epsilon}. An explicit calculation of… more
Date: December 1, 1980
Creator: Abarbanel, Henry D.I. & Crawford, John David
Partner: UNT Libraries Government Documents Department
open access

STRONG COUPLING EXPANSIONS FOR NON-INTEGRABLE HAMILTONIAN SYSTEMS

Description: We present a method for studying nonintegrable Hamiltonian systems H(I,{theta})=H{sub 0}(I)+kH{sub 1}(I,{theta}) (I,{theta} are action-angle variables) in the reg1me of large k. Our central tool is the conditional probability P(I,{theta},t|I{sub 0},{theta}{sub 0},t{sub 0}) that the system is at I,{theta} at time t given that it resided at I{sub 0},{theta}{sub 0} at t{sub 0}. An integral representation is given for this conditional probability. By discretizing the Hamiltonian equations of motion… more
Date: December 1, 1980
Creator: Abarbanel, Henry D.I. & Crawford, John David
Partner: UNT Libraries Government Documents Department
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Choice of Coolant in Commercial Tokamak Power Plants

Description: The STARFIRE design study focused on solid tritium breeder blankets in order to minimize the stored chemical energy. The most suitable coolant candidates with solid tritium breeders are water and helium. This paper presents the results of a comparative study of the two coolants. The study shows clear advantages for the choice of pressurized water for the conditions of the STARFIRE tokamak power plant design. The study also identifies those areas where development is required in order to utilize… more
Date: January 1, 1980
Creator: Abdou, M. A. & Graumann, D.
Partner: UNT Libraries Government Documents Department
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STARFIRE: A Conceptual Design of a Commercial Tokamak Power Plant. Paper IAEA-CN-39/E-1

Description: STARFIRE is a conceptual design for a commercial tokamak power plant based on the deuterium/tritium/lithium fuel cycle. The emphasis of the study is on the simplicity of the engineering design, maintainability, lower electricity cost, and improved safety and environmental features. The reactor has a 7-m major radius and produces 1200 MW of electric power. STARFIRE operates in a steady-state mode with the plasma current driven by a lower hybrid rf system. The plasma purity control and exhaust sy… more
Date: January 1, 1980
Creator: Abdou, M. A.; Baker, C. C.; DeFreece, D.; Trachsel, C.; Graumann, D. & Kokoszenski, J.
Partner: UNT Libraries Government Documents Department
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Limiter/Vacuum System for Plasma Impurity Control and Exhaust in Tokamaks

Description: A detailed design of a limiter/vacuum system for plasma impurity control and exhaust has been developed for the STARFIRE tokamak power plant. It is shown that the limiter/vacuum concept is a very attractive option for power reactors. It is relatively simple and inexpensive and deserves serious experimental verification.
Date: January 1, 1980
Creator: Abdou, M.; Brooks, J. & Mattas, R.
Partner: UNT Libraries Government Documents Department
open access

Large-area proportional counter camera for the US National Small-Angle Neutron Scattering Facility

Description: An engineering model of a multiwire position-sensitive proportional-counter (PSPC) was developed, tested, and installed at the US National Small-Angle Neutron Scattering Facility at ORNL. The PSPC is based on the RC-encoding and time-difference decoding method to measure the spatial coordinates of the interaction loci of individual scattered neutrons. The active area of the PSPC is 65 cm x 65 cm, and the active depth is 3.6 cm. The spatial uncertainty in both coordinates is approx. 1.0 cm (fwhm… more
Date: January 1, 1980
Creator: Abele, R. K.; Allin, G. W.; Clay, W. T.; Fowler, C. E. & Kopp, M. K.
Partner: UNT Libraries Government Documents Department
open access

EPR investigations of impurities in the lanthanide orthophosphates

Description: Lanthanide orthophosphates formed from elements in the first half of the 4f transition series are analogs of the monoclinic mineral monazite. The known geologic properties of this mineral make the general class of lanthanide orthophosphate compounds attractive substances for long-term containment and disposal of ..cap alpha..-active actinide nuclear wastes. EPR spectroscopy has been used to investigate the structural properties and solid state chemical properties of impurities in these material… more
Date: September 1, 1980
Creator: Abraham, M. M.; Boatner, L. A. & Rappaz, M.
Partner: UNT Libraries Government Documents Department
open access

PERFORMANCE OF THE LEAD/LIQUID ARGON SHOWER COUNTER SYSTEM OF THE MARK II DETECTOR AT SPEAR

Description: The shower counter system of the SLAC-LBL Mark II detector is a large lead/liquid argon system of the type pioneered by Willis and Radekal; however, it differs in most details and is much larger than other such detectors currently in operation, It contains, for example, 8000 liters of liquid argon and 3000 channels of low noise electronics, which is about eight times the size of the system of Willis et al. in the CERN ISR. This paper reports, with little reference to design, on the operation an… more
Date: May 1, 1980
Creator: Abrams, G. S.; Blocker, C. A.; Briggs, D. D.; Carithers, W. C.; Dieterle, W. E.; Eaton, M. W. et al.
Partner: UNT Libraries Government Documents Department
open access

MEASUREMENTS OF THE PROPERTIES OF D MESON DECAYS

Description: We present a study of the decay properties of charmed D mesons produced near the peak of the {psi}" (3770) resonance in e{sup +}e{sup -} annihilation. Branching fractions for nine Cabibbo-favored and three Cabibbo-suppressed decay modes are presented along with upper limits on one additional Cabibbo-favored and four additional Cabibbo-suppressed decay modes. A study of K{pi}{pi} decay mode Dalitz plots reveals a large quasi-two-body pseudoscalar-vector component for the D{sup 0} decays and… more
Date: May 1, 1980
Creator: Abrams, G.; Blocker, C. A.; Blondel, A.; Carithers, W. C.; Chinowsky, W.; Coles, M. W. et al.
Partner: UNT Libraries Government Documents Department
open access

Anomalous low mass e/sup +/e/sup -/ pair production in 17 GeV/c. pi. /sup -/p collisions

Description: An experiment was performed at the Multiparticle Spectrometer using 17 GeV/c ..pi../sup -/ from the BNL AGS, triggering upon inclusive e/sup +/e/sup -/ production. Electron identification was based on two transition radiator detectors and lead-scintillator shower detectors. Good acceptance for the e/sup +/e/sup -/ pair covered the region x/sub F/ > 0.3 for all p/sub T/ and pair masses. Charged particles and photons associated with the e/sup +/e/sup -/ pair are detected over a large solid ang… more
Date: January 1, 1980
Creator: Abshire, G; Adams, M & Brown, C
Partner: UNT Libraries Government Documents Department
open access

Oxidation of 316 stainless steel and other alloys in prototypic GCFR environments

Description: The oxidation behavior of type 316 stainless steel and candidate advanced alloys for the gas-cooled fast reactor (GCFR) is being investigated at General Atomic Company. The test program consists of oxidation tests in prototypic GCFR environments. Two tests have been completed to date and a third test is under way. The first test was performed in an environment containing a hydrogen/water ratio of 10. The oxidation behavior of all the alloys was good to excellent in this environment. Preferentia… more
Date: May 1, 1980
Creator: Acharya, R.T.
Partner: UNT Libraries Government Documents Department
open access

Delay modeling in logic simulation

Description: As digital integrated circuit size and complexity increases, the need for accurate and efficient computer simulation increases. Logic simulators such as SALOGS (SAndia LOGic Simulator), which utilize transition states in addition to the normal stable states, provide more accurate analysis than is possible with traditional logic simulators. Furthermore, the computational complexity of this analysis is far lower than that of circuit simulation such as SPICE. An eight-value logic simulation enviro… more
Date: January 1, 1980
Creator: Acken, John M. & Goldstein, Lawrence H.
Partner: UNT Libraries Government Documents Department
open access

Fortran for the 1980's

Description: The new standard Fortran 77 has not been available long, but the American National Standards Institute (ANSI) committee X3J3 responsible for Fortran standardization is already working on the next revision. Since the result of this work will be a candidate for an international (ISO) standard, it is important that work being done now become known to all persons interested in Fortran. A new set of problems related to the accommodation of related standards in data base management and real-time proc… more
Date: January 1, 1980
Creator: Adams, J. & Brainerd, W.
Partner: UNT Libraries Government Documents Department
open access

Response of LOFT SPNDs to reactor coolant density variations during a LOCA simulation

Description: Analysis of self-powered neutron detector (SPND) data taken during loss-of-coolant experiment (LOCE) L2-3 conducted in the Loss-of-Fluid Test (LOFT) facility has shown that the detectors are sensitive, in a qualitative sense, to coolant density variations in the reactor core. These results provide a strong impetus for determining the applicability of self-powered nuclear flux detectors for liquid level measurement in the reactor vessel of a pressurized water reactor (PWR) during transient condi… more
Date: January 1, 1980
Creator: Adams, J.P. & Berta, V.T.
Partner: UNT Libraries Government Documents Department
open access

Results of small break LOCA experiments in the LOFT reactor system with comparison to code calculations. [PWR]

Description: The results are presented of three small break loss-of-coolant experiments performed in the LOFT Pressurized Water Reactor (PWR) system. Experiment L3-0, performed without reactor power, represented a loss of coolant from the power operated relief valve on the top of the pressurizer. Experiments L3-1 and L3-2 were initiated with the reactor at full power (maximum linear heat generation rate approximately 52 kW/m) and represented 4-in and 1-in diameter breaks, respectively, in the reactor inlet … more
Date: January 1, 1980
Creator: Adams, J.P.; Linebarger, J.H. & Leach, L.P.
Partner: UNT Libraries Government Documents Department
open access

Behavior of Sodium Oxide, Uranium Oxide and Mixed Sodium Oxide-Uranium Oxide Aerosols in a Large Vessel

Description: Results are reported for experiments on the behavior of sodium oxide aerosols, uranium oxide aerosols, and various mixtures of these in the Nuclear Safety Pilot Plant (NSPP) vessel at Oak Ridge National Laboratory. The NSPP program, sponsored by the Nuclear Regulatory Commission, is to provide experimental qualification of the HAARM-3 aerosol behavioral code being independently developed at Battelle-Columbus Laboratories. The results of fourteen single-component and six mixed-component aerosol … more
Date: January 1, 1980
Creator: Adams, R. E.; Han, J. T.; Kress, T. S. & Silberberg, M.
Partner: UNT Libraries Government Documents Department
open access

Permeability enhancement using explosive techniques

Description: In situ recovery methods for many of our hydrocarbon and mineral resources depend on the ability to create or enhance permeability in the resource bed to allow uniform and predictable flow. To meet this need, a new branch of geomechanics devoted to computer prediction of explosive rock breakage and permeability enhancement has developed. The computer is used to solve the nonlinear equations of compressible flow, with the explosive behavior and constitutive properties of the medium providing the… more
Date: January 1, 1980
Creator: Adams, T. F.; Schmidt, S. C. & Carter, W. J.
Partner: UNT Libraries Government Documents Department
open access

Computer simulation of explosive fracture of oil shale

Description: The steps in assembling the computational tools needed to simulate the explosive fracture of oil shale have been described. The resulting code, with its input data, was then used to simulate three explosive field experiments. The results of the calculations are in good agreement with what actually occurred in the field. Further detailed comparisons are in progress for these experiments and the others that have been conducted. As this is done, improvements will be made in the input data and in t… more
Date: January 1, 1980
Creator: Adams, Thomas F.
Partner: UNT Libraries Government Documents Department
open access

Calcitonin Treatment of Osteoporosis

Description: The results of a controlled study of the effiacy of administration of calcitonin in arresting the progression of osteoporosis in male patients is presented. (ACR)
Date: January 1, 1980
Creator: Agrawal, Ram; Wallach, Stanley; Cohn, Stanton; Tessier, Mary; Verch, Raymond; Hussain, Maleka et al.
Partner: UNT Libraries Government Documents Department
open access

Laser fusion experiments, facilities and diagnostics at Lawrence Livermore Laboratory

Description: The progress of the LLL Laser Fusion Program to achieve high gain thermonuclear micro-explosions is discussed. Many experiments have been successfully performed and diagnosed using the large complex, 10-beam, 30 TW Shiva laser system. A 400 kJ design of the 20-beam Nova laser has been completed. The construction of the first phase of this facility has begun. New diagnostic instruments are described which provide one with new and improved resolution, information on laser absorption and scatterin… more
Date: February 1, 1980
Creator: Ahlstrom, H.G.
Partner: UNT Libraries Government Documents Department
open access

Convective heat transfer in MHD channels and its influence on channel performance

Description: The limitations of the integral boundary layer methods and the potential of the differential boundary layer method in analyzing MHD channel flows are assessed. The sensitivity of results from the integral method to the parametrization of boundary layer profiles and calculation of wall heat transfer is established. A mixing-length type turbulence model for flow on rough walls is developed and validated by comparison with experimental data. The turbulence model is used in a quasi-three-dimensiona… more
Date: January 1, 1980
Creator: Ahluwalia, R. K. & Doss, E. D.
Partner: UNT Libraries Government Documents Department
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