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Outsider's look at flight instrumentation (open access)

Outsider's look at flight instrumentation

This paper presents ideas and speculations on possible diagnostic instrumentation for use in missile flight testing. A plea is made for increased instrumentation efforts. There is some discussion of telemetry methods.
Date: January 1, 1981
Creator: Lundy, A. S.
System: The UNT Digital Library
Passive Solar Technology (open access)

Passive Solar Technology

The present status of passive solar technology is summarized, including passive solar heating, cooling and daylighting. The key roles of the passive solar system designer and of innovation in the building industry are described. After definitions of passive design and a summary of passive design principles are given, performance and costs of passive solar technology are discussed. Passive energy design concepts or methods are then considered in the context of the overall process by which building decisions are made to achieve the integration of new techniques into conventional design. (LEW).
Date: April 1, 1981
Creator: Watson, D.
System: The UNT Digital Library
Active Space Heating and Hot Water Supply With Solar Energy (open access)

Active Space Heating and Hot Water Supply With Solar Energy

Technical and economic assessments are given of solar water heaters, both circulating, and of air-based and liquid-based solar space heating systems. Both new and retrofit systems are considered. The technical status of flat-plate and evacuated tube collectors and of thermal storage is also covered. Non-technical factors are also briefly discussed, including the participants in the use of solar heat, incentives and deterrents. Policy implications are considered as regards acceleration of solar use, goals for solar use, means for achieving goals, and interaction of governments, suppliers, and users. Government actions are recommended. (LEW)
Date: April 1, 1981
Creator: Karaki, S. & Loef, G. O. G.
System: The UNT Digital Library
Load-deflection characteristics of small-bore insulated-pipe clamps (open access)

Load-deflection characteristics of small-bore insulated-pipe clamps

The special insulated clamps used on both FFTF and CRBR piping utilize a Belleville spring arrangement to compensate for pipe thermal expansion. Analysis indicates that this produces a non-linear, directionally sensitive clamp spring rate. Since these spring rates influence the seismic response of a supported piping system, it was deemed necessary to evaluate them further by test. This has been accomplished for the FFTF clamps. A more standard insulated pipe clamp, which does not incorporate Belleville springs to accommodate thermal expansion, was also tested. This type clamp is simple in design, and economically attractive. It may have wide application prospects for use in LMFBR small bore auxiliary piping operating at temperatures below 427/sup 0/C. Load deflection tests were conducted on 2.54 CM and 7.62 CM diameter samples of these commercial clamps.
Date: December 1, 1981
Creator: Severud, L. K. & Clark, G. L.
System: The UNT Digital Library
Biaxial model for bounding creep ratchetting in shells (open access)

Biaxial model for bounding creep ratchetting in shells

The concept of elastic core stress is used to derive bounds for the maximum inelastic strains in shells of revolution subjected to pressure and cyclic thermal loads in the creep regime. Solutions are obtained for primary membrane stresses of arbitrary biaxiality and thermal bending of arbitrary biaxiality. The stress regimes where previously derived uniaxial solutions can be conservatively used are defined. The new biaxial solutions provide more efficient bounds than the uniaxial solutions for the maximum strains in pressurized spheres and cylinders.
Date: January 1, 1981
Creator: O'Donnell, W. J. & Porowski, J. S.
System: The UNT Digital Library
Near Real-Time Accounting In a Reprocessing Facility Using In-Process Inventory Estimation (open access)

Near Real-Time Accounting In a Reprocessing Facility Using In-Process Inventory Estimation

None
Date: April 1, 1981
Creator: Crawford, John M.; Ehinger, Michael H. & Ellis, John H.
System: The UNT Digital Library
Operating Experience with a Large Sample, High Throughput, Plutonium Assay Calorimeter System (open access)

Operating Experience with a Large Sample, High Throughput, Plutonium Assay Calorimeter System

None
Date: December 1, 1981
Creator: Hamilton, R. A.
System: The UNT Digital Library
Dynamics of hadron-nucleus interactions (open access)

Dynamics of hadron-nucleus interactions

Recent progress in diffraction theory shows that proton-nucleus scattering at nonforward angles is dominated by the interference of waves from two or more bright spots. Analytic formulas based on asymptotic theories of diffraction yield valuable new insights into the scattering and these formulas can be readily extended to illuminate the role of dynamical ingredients, i.e., the nucleon-nucleon amplitudes. The governing parameters of the diffraction and some direct connections between the observed cross sections and the input dynamics are reviewed. New information regarding the nucleon-nucleon parameters based on recent phase shift analyses show some systematic differences from the effective NN amplitudes which produce fits to proton-nucleus diffraction data. Recent progress in understanding the role of ..delta..-isobars in proton-nucleus dynamics is reviewed. 126 references.
Date: July 1, 1981
Creator: Wallace, S.J.
System: The UNT Digital Library
Progress of soil radionuclide distribution studies for the Nevada Applied Ecology Group: 1981 (open access)

Progress of soil radionuclide distribution studies for the Nevada Applied Ecology Group: 1981

Two nuclear sites have been under intensive study by the Nevada Applied Ecology Group (NAEG) during 1980 and 1981, NS201 in area 18 and NS219,221 in area 20. In support of the various studies Los Alamos National Laboratory (Group LS-6) has provided consultation and evaluations relative to radionuclide distributions in soils inundated with radioactive debris from those tests. In addition, a referee effort was also conducted in both analysis of replicate samples and in evaluating various data sets for consistency of results. This report summarizes results of several of the data sets collected to test certain hypotheses relative to radionuclide distributions and factors affecting calculations of hypotheses relative to radionuclide distributions and factors affecting calculations of radionuclide inventories and covers the period February 1980 to May 1981.
Date: January 1, 1981
Creator: Essington, E.H.
System: The UNT Digital Library
Microprocessor-based single board computer for high energy physics event pattern recognition (open access)

Microprocessor-based single board computer for high energy physics event pattern recognition

A single board MC 68000 based computer has been assembled and bench marked against the CDC 7600 running portions of the pattern recognition code used at the MPS. This computer has a floating coprocessor to achieve throughputs equivalent to several percent that of the 7600. A major part of this work was the construction of a FORTRAN compiler including assembler, linker and library. The intention of this work is to assemble a large number of these single board computers in a parallel FASTBUS environment to act as an on-line and off-line filter for the raw data from MPS II and ISABELLE experiments.
Date: January 1, 1981
Creator: Bernstein, H.; Gould, J. J.; Imossi, R.; Kopp, J. K.; Love, W. A.; Ozaki, S. et al.
System: The UNT Digital Library
Size effect related to damping caused by water submersion (open access)

Size effect related to damping caused by water submersion

An important effect of water submersion on the dynamic response of a structure is the increase in effective damping. The dynamic response of submerged structures is of interest in the nuclear power industry for reasons of operational safety during seismic and other dynamic excitations. In this paper, the added damping contribution that results from the viscosity of water and the dependence of the contribution on structural size are examined. Other factors considered are the applicable range of viscous damping with respect to displacement amplitude and, as far as damping is concerned, how far neighboring members must be from each other to respond as if in open water. An expression is derived for relating the damping value to structural size. Estimated added-damping values for representative fuel elements, fuel bundles, and main steam-pressure-relief-valve lines are given based on our derived expression for added damping.
Date: January 1, 1981
Creator: Dong, R.G.
System: The UNT Digital Library
Recent developments and applications of multi-configuration Hartree-Fock methods. NRCC proceedings No. 10 (open access)

Recent developments and applications of multi-configuration Hartree-Fock methods. NRCC proceedings No. 10

Twenty-seven papers are included in four sessions titled: generalized Fock operator methods, annihilation of single excitations methods, second-order MCSCF methods, and applications of MCHF methods. Separate abstracts were prepared for eight papers; one of the remaining had been previously abstracted. (DLC)
Date: February 1, 1981
Creator: Dupuis, M. (ed.)
System: The UNT Digital Library
Status of the CRBRP steam-generator design (open access)

Status of the CRBRP steam-generator design

Fabrication of the Prototype Unit is near completion and will be delivered to the test site in August, 1981. The Plant Unit design is presently at an advanced stage and will result in steam generator units fully capable of meeting all the requiments of the CRBRP Power Plant.
Date: June 1, 1981
Creator: Schmidt, J.E.; Martinez, R.S. & Murdock, J.F.
System: The UNT Digital Library
Neutrino mixing in SO(10)* (open access)

Neutrino mixing in SO(10)*

The question of neutrino mixing is considered within the grand unified field theory. (GHT)
Date: January 1, 1981
Creator: Milton, K. & Tanaka, K.
System: The UNT Digital Library
Control electronics of the PEP RF system (open access)

Control electronics of the PEP RF system

The operation of the major components used for controlling the phase and field level of the PEP RF cavities is described. The control electronics of one RF station is composed of several control loops: each cavity has a tuners' servo loop which maintains the frequency constant and also keeps the fields of each cavity balanced; the total gap voltage developed by a pair of cavities is regulated by a gap voltage controller; finally, the phase variation along the amplification chain, the klystron and the cavities are compensated by a phase lock loop. The design criteria of each loop are set forth and the circuit implementation and test results are presented.
Date: January 1, 1981
Creator: Pellegrin, J.L. & Schwarz, H.
System: The UNT Digital Library
Phenomenology of quark mixing and the Kobayashi-Maskawa model (open access)

Phenomenology of quark mixing and the Kobayashi-Maskawa model

The status of the determination of the quark mixing matrix in the Kobayashi-Maskawa model and its phenomenological implications are discussed. Much of the talk reviews current work on the subject. Some new results on the CP violation effects in exclusive and inclusive decays of bottom, charm and strange particles are also given.
Date: April 1, 1981
Creator: Wang, L. L. C.
System: The UNT Digital Library
Well descriptions for geothermal drilling (open access)

Well descriptions for geothermal drilling

Generic well models have been constructed for eight major geothermal resource areas. The models define representative times and costs associated with the individual operations that can be expected during drilling and completion of geothermal wells. They were made for and have been used to evaluate the impacts of potential new technologies. Their nature, their construction, and their validation are discussed.
Date: January 1, 1981
Creator: Carson, C. C. & Livesay, B. J.
System: The UNT Digital Library
Systems simulation and economic analysis for active solar cooling (open access)

Systems simulation and economic analysis for active solar cooling

A consistent methodology has been developed by which general solar cooling market capture goals have been translated into specific cost and performance goals for solar cooling systems and subsystems. Preliminary results indicate that realistic cost/performance goals can be established for active solar cooling systems and that, with aggressive development, these goals can be reached by the year 2000. As the technology develops, tax incentives will be required to bridge the gap between the actual costs and the cost goals, so that the scenario of an ever increasing share of market penetration can be maintained over the 1986 to 2000 time period.
Date: July 1, 1981
Creator: Warren, M. & Wahlig, M.
System: The UNT Digital Library
INTOR radiation shielding for personnel access (open access)

INTOR radiation shielding for personnel access

The INTOR reactor shield system consists of the blanket, bulk shield, penetration shield, component shield, and biological shield. The bulk shield consists of two parts: (a) the inboard shield; and (b) the outboard shield. The distinction between the different components of the shield system is essential to satisfy the different design constraints and achieve various objectives.
Date: January 1, 1981
Creator: Gohar, Y. & Abdou, M.
System: The UNT Digital Library
Sensitivity coefficients for the /sup 238/U neutron-capture shielded-group cross sections (open access)

Sensitivity coefficients for the /sup 238/U neutron-capture shielded-group cross sections

In the unresolved resonance region cross sections are represented with statistical resonance parameters. The average values of these parameters are chosen in order to fit evaluated infinitely dilute group cross sections. The sensitivity of the shielded group cross sections to the choice of mean resonance data has recently been investigated for the case of /sup 235/U and /sup 239/Pu by Ganesan and by Antsipov et al; similar sensitivity studies for /sup 238/U are reported. (WHK)
Date: January 1, 1981
Creator: Munoz-Cobos, J.L.; de Saussure, G. & Perez, R.B.
System: The UNT Digital Library
Nuclei far from stability using exotic targets (open access)

Nuclei far from stability using exotic targets

The meson factories such as the Los Alamos Meson Physics Facility have made possible high fluence medium energy proton beams that can be used for spallation reactions to produce macro quantities of unstable isotopes. Targets of over 10 g/cm/sup 2/ can be exposed to total fluence approaching 1 A-hour resulting in spallation yields in the 0.01-10 mg range for many isotopes of potential interest for nuclear structure studies. With the use of hot cell facilities, chemical processing can isolate the desired material and this coupled with subsequent isotope separation can result in usable quantities of material for nuclear target application. With off-stable isotopes as target materials, conventional nuclear spectroscopy techniques can be employed to study nuclei far from stability. The irradiation and processing requirements for such an operation, along with the isotope production possibilities, are discussed. Also presented are initial experiments using a /sup 148/Gd (t/sub 1/2/ = 75a) target to perform the (p,t) reaction to establish levels in the proposed double magic nucleus /sup 146/Gd.
Date: January 1, 1981
Creator: Wilhelmy, J. B.; Bentley, G. E.; Thomas, K. E.; Brown, R. E.; Flynn, E. R.; Van der Plicht, J. et al.
System: The UNT Digital Library
International symposium on fuel rod simulators: development and application (open access)

International symposium on fuel rod simulators: development and application

Separate abstracts are included for each of the papers presented concerning fuel rod simulator operation and performance; simulator design and evaluation; clad heated fuel rod simulators and fuel rod simulators for cladding investigations; fuel rod simulator components and inspection; and simulator analytical modeling. Ten papers have previously been input to the Energy Data Base.
Date: May 1, 1981
Creator: McCulloch, R.W. (comp.)
System: The UNT Digital Library
Thermal propagation of normal-superconductor boundaries (open access)

Thermal propagation of normal-superconductor boundaries

The model of Newhouse for thermal propagation of long normal regions in thin superconducting films on good thermal conducting substrates has been verified. Measurements show much slower velocities for short regions, but the dependence is compatible with a new model calculation. Stable hot spots are found which agree semi-quantitatively with a modified hot-spot calculation.
Date: January 1, 1981
Creator: Gray, K.E.; Zasadzinski, J. & Kampwirth, R.T.
System: The UNT Digital Library
Design features and operational characteristics of the PEP beam-transport and injection system (open access)

Design features and operational characteristics of the PEP beam-transport and injection system

The PEP beam-transport system was designed to transmit 4-to-15 GeV electron and positron beams from the SLAC linac within a +- 0.8% momentum band, to have flexible tuning of the betatron and off-momentum functions for matching into the PEP storage ring, and to have convenient operating characteristics. The transport lines were brought into operation quickly and have operated well. Electron injection has been consistent and efficient and relatively easy to accomplish. Positron injection also has been satisfactory but is variable and more sensitive to ring conditions.
Date: March 1, 1981
Creator: Peterson, J. M.; Brown, K. L. & Truher, J. B.
System: The UNT Digital Library