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Amplifier-Discriminator-Multiplexor card
The Amplifier-Discriminator-Multiplexor (ADM) card described was designed for the External Muon Identifier at the 15 ft Bubble Chamber. The general scheme of the data readout of the External Muon Identifier is based on the use of a master clock. The ADM card serves to amplify the signals from the proportional tubes, discriminate them, latch the signals in parallel into a shift register. The data are then shifted out serially to the Time Digitizing System, using the master clock. The shift registers are loaded, and the latches are reset every sixteen cycles of the master clock. (LEW)
Date:
February 1, 1986
Creator:
Graupman, D.
System:
The UNT Digital Library
Amplitude dependence of the tune shift
Recent studies in the Tevatron have measured the tune shift as a function of the displacement from a closed orbit. The measured values of tune shift were found to be much smaller than one would expect from the measured distribution of the normal octupole moments in the Tevatron. Tracking studies performed to see if, and under what conditions, the observed results could be obtained are reported. The effect of linear coupling is taken into consideration, and is found to significantly reduce the coefficient of the tune shift. The dependence of the tune shift on the initial coordinate of a particle in the presence of a distribution of octupole moments is calculated. The ''smear'' is calculated as a function of linear coupling. (LEW)
Date:
March 1, 1986
Creator:
Gelfand, N.M.
System:
The UNT Digital Library
Analyses of operational times and technical aspects of the Salton Sea scientific drilling project: (Final report)
The Deep Salton Sea Scientific Drilling Program (DSSSDP) was conducted in Imperial County of California at the Southeastern edge of the Salton Sea. Emphasis was on the acquisition of scientific data for the evaluation of the geological environment encountered during the drilling of the well. The scientific data acquisition activities consisted of coring, running of numerous downhole logs and tools in support of defining the geologic environment and conducting two full scale flow tests primarily to obtain pristine fluid samples. In addition, drill cuttings, gases and drilling fluid chemistry measurements were obtained from the drilling fluid returns concurrent with drilling and coring operations. The well was drilled to 10,564 feet. This report describes the field portions of the project and presents an analysis of the time spent on the various activities associated with the normal drilling operations, scientific data gathering operations and the three major downhole problem activities - lost circulation, directional control and fishing.
Date:
December 1, 1986
Creator:
unknown
System:
The UNT Digital Library
Analysis and testing of the HP-R-214 dome monitor cable from Three Mile Island Unit 2
After the accident at Three Mile Island, Unit 2, two sections of a cable connected to the HP-R-214 dome monitor were removed for testing. One section had been directly exposed to the accident environment: the other had been installed in conduit. In addition, an unused section of cable, which was from the same reel as the dome monitor cable, was available as a control sample. These three sections were subjected to material tests, including density profiling, tensile-strength and elongation tests, and chemical analyses, to assess the effect of the accident on the cable and to identify whether any differences existed between the in-conduit and out-of-conduit sections.
Date:
March 1, 1986
Creator:
Richards, E.H. & Dandini, V.J.
System:
The UNT Digital Library
An Analysis of Accumulator Ring Pressure Date
This note summarizes and analyzes the Accumulator Ring's pressure data taken during the recent commissioning run (March-October, 1985) and during the three week interval immediately after the end of the commissioning run. Emphasis is placed upon the questions raised in reference [1], viz.: (1) What is the ultimate vacuum attainable? (2) How do we calculate the 'effective-pressure' for beam lifetime estimates from the ion gauge data? (3) What is the required sublimation schedule to maintain adequate vacuum?
Date:
January 9, 1986
Creator:
Gormley, M.
System:
The UNT Digital Library
Analysis of core damage frequency from internal events: Peach Bottom, Unit 2
This document contains the internal event initiated accident sequence analyses for Peach Bottom, Unit 2; one of the reference plants being examined as part of the NUREG-1150 effort by the Nuclear Regulatory Commission. NUREG-1150 will document the risk of a selected group of nuclear power plants. As part of that work, this report contains the overall core damage frequency estimate for Peach Bottom, Unit 2, and the accompanying plant damage state frequencies. Sensitivity and uncertainty analyses provided additional insights regarding the dominant contributors to the Peach Bottom core damage frequency estimate. The mean core damage frequency at Peach Bottom was calculated to be 8.2E-6. Station blackout type accidents (loss of all ac power) were found to dominate the overall results. Anticipated Transient Without Scram accidents were also found to be non-negligible contributors. The numerical results are largely driven by common mode failure probability estimates and to some extent, human error. Because of significant data and analysis uncertainties in these two areas (important, for instance, to the most dominant scenario in this study), it is recommended that the results of the uncertainty and sensitivity analyses be considered before any actions are taken based on this analysis.
Date:
October 1, 1986
Creator:
Kolaczkowski, A.M.; Lambright, J.A.; Ferrell, W.L.; Cathey, N.G.; Najafi, B. & Harper, F.T.
System:
The UNT Digital Library
Analysis of data bases for health services research on dementia
This report offers different sources of data regarding different forms of dementia, as well as illustrations and applications in a different settings.
Date:
July 1986
Creator:
Liu, Korbin
System:
The UNT Digital Library
Analysis of earthquake data recorded by digital field seismic systems, Jackass Flats, Nevada
Analysis of 59 time series from ten small magnitude earthquakes recorded in 1981 by portable digital seismic systems at the southern Nevada Test Site (NTS) yielded several significant results. We find that moment magnitude (M/sub L/) (local magnitude determined from seismic moment) correlates closely with coda duration magnitudes M/sub d/ determined by the Southern Great Basin Seismic Network (SGBSN). Further, local magnitude M/sub W A/ computed from displacement seismograms simulating Wood-Anderson response are, on average, 0.38 magnitude units larger than M/sub d/ and 0.44 magnitude units larger than (M/sub L/). Another result is that stress drops for the ten earthquakes are significantly smaller than typical stress drops for earthquakes of similar seismic moment in California. Similarly, determinations of the peak ground motion parameter Rv are up to 10 to 20 times smaller than a previously determined empirical formula relating Rv to seismic moment. We conclude that seismic waves from southern Nevada Test Site earthquakes suffer from significant anelastic attenuation, possibly in the near-surface crust under the recording sites, yielding reduced amplitude and frequency of the peak ground motion and shifting the apparent corner frequency of the source spectrum to lower values, thereby producing unexpectedly low stress drops.
Date:
December 31, 1986
Creator:
Tarr, A. C. & Rogers, A. M.
System:
The UNT Digital Library
Analysis of fuel shares in the industrial sector
These studies describe how fuel shares have changed over time; determine what factors are important in promoting fuel share changes; and project fuel shares to the year 1995 in the industrial sector. A general characterization of changes in fuel shares of four fuel types - coal, natural gas, oil and electricity - for the industrial sector is as follows. Coal as a major fuel source declined rapidly from 1958 to the early 1970s, with oil and natural gas substituting for coal. Coal's share of total fuels stabilized after the oil price shock of 1972-1973, and increased after the 1979 price shock. In the period since 1973, most industries and the industrial sector as a whole appear to freely substitute natural gas for oil, and vice versa. Throughout the period 1958-1981, the share of electricity as a fuel increased. These observations are derived from analyzing the fuel share patterns of more than 20 industries over the 24-year period 1958 to 1981.
Date:
June 1, 1986
Creator:
Roop, J.M. & Belzer, D.B.
System:
The UNT Digital Library
Analysis of fuel shares in the residential sector: 1960 to 1995
Historical and future energy use by fuel type in the residential sector of the United States are examined. Of interest is the likely relative demand for fuels as they affect national policy issues such as the potential shortfall of electric generating capacity in the mid to late 1990's and the ability of the residential sector to switch rapdily among fuels in response to fuel shortages, price increases and other factors. Factors affecting the share of a fuel used rather than the aggregate level of energy use are studied. However, the share of a fuel used is not independent of the level of energy consumption. In the analysis, the level of consumption of each fuel is computed as an intermediate result and is reported for completeness.
Date:
August 1, 1986
Creator:
Reilly, J.M.; Shankle, S.A. & Pomykala, J.S.
System:
The UNT Digital Library
Analysis of Heat-Pipe Absorbers in Evacuated-Tube Solar Collectors
Heat transfer in evacuated-tube solar collectors with heat-pipe absorbers is compared with that for similar collectors with flow-through absorbers. In systems that produce hot water or other heated fluids, the heat-pipe absorber suffers a heat transfer penalty compared with the flow-through absorber, but in many cases the penalty can be minimized by proper design at the heat-pipe condenser and system manifold. The heat transfer penalty decreases with decreasing collector heat loss coefficient, suggesting that evacuated tubes with optical concentration are more appropriate for use with heat pipes than evacuated or non-evacuated flat-plate collectors. When the solar collector is used to drive an absorption chiller, the heat-pipe absorber has better heat transfer characteristics than the flow-through absorbers.
Date:
February 1986
Creator:
Hull, John R.; Schertz, William W. & Allen, John W.
System:
The UNT Digital Library
Analysis of nuclear power plant construction costs
The objective of this report is to present the results of a statistical analysis of nuclear power plant construction costs and lead-times (where lead-time is defined as the duration of the construction period), using a sample of units that entered construction during the 1966-1977 period. For more than a decade, analysts have been attempting to understand the reasons for the divergence between predicted and actual construction costs and lead-times. More importantly, it is rapidly being recognized that the future of the nuclear power industry rests precariously on an improvement in the cost and lead-time situation. Thus, it is important to study the historical information on completed plants, not only to understand what has occurred to also to improve the ability to evaluate the economics of future plants. This requires an examination of the factors that have affected both the realized costs and lead-times and the expectations about these factors that have been formed during the construction process. 5 figs., 22 tabs.
Date:
January 1, 1986
Creator:
unknown
System:
The UNT Digital Library
Analysis of organizational options for the uranium enrichment enterprise in relation to asset divesture. [BPA; TVA; SYNFUELS; CONRAIL; British TELECOM; COMSTAT]
This report presents a comparison of the characteristics of some prominent examples of independent government corporations and agencies with respect to the Department of Energy's (DOE) uranium enrichment enterprise. The six examples studied were: the Bonneville Power Administration (BPA); the Tennessee Valley Authority (TVA); the Synthetic Fuels Corporation (SYNFUELS); the Consolidated Rail Corporation (CONRAIL); the British Telecommunications Corporation (British TELECOM); and the Communications Satellite Organization (COMSAT), in order of decreasing levels of government ownership and control. They range from BPA, which is organized as an agency within DOE, to COMSAT, which is privately owned and free from almost all regulations common to government agencies. Differences in the degree of government involvement in these corporations and in many other characteristics serve to illustrate that there are no accepted standards for defining the characteristics of government corporations. Thus, historical precedent indicates considerable flexibility would be available in the development of enabling legislation to reorganize the enrichment enterprise as a government corporation or independent government agency.
Date:
August 1, 1986
Creator:
Harrer, B. J.; Hattrup, M. P.; Dase, J. E. & Nicholls, A. K.
System:
The UNT Digital Library
Analysis of residential, industrial and commercial sector responses to potential electricity supply constraints in the 1990s
There is considerable debate over the ability of electric generation capacity to meet the growing needs of the US economy in the 1990s. This study provides new perspective on that debate and examines the possibility of power outages resulting from electricity supply constraints. Previous studies have focused on electricity supply growth, demand growth, and on the linkages between electricity and economic growth. This study assumes the occurrence of electricity supply shortfalls in the 1990s and examines the steps that homeowners, businesses, manufacturers, and other electricity users might take in response to electricity outages.
Date:
September 1, 1986
Creator:
Fisher, Z. J.; Fang, J. M.; Lyke, A. J. & Krudener, J. R.
System:
The UNT Digital Library
Analysis of surface contaminants on beryllium windows
It is known that various crystalline and liquid compounds form on the downstream surfaces of beryllium windows exposed to air. It is also known that the integrity of such windows may be compromised resulting in leaks through the window. The purpose of this report is to document the occurrences described as they pertain to the NSLS and to analyze, where possible, the various substances formed.
Date:
December 1, 1986
Creator:
Gmur, N. F.
System:
The UNT Digital Library
Analysis of temperature-time data from 3 m drillholes at Crystal Hot Springs, Utah
A method for determining the background geothermal gradient values through the analysis of temperature measurements at multiple depths to 3 m and recorded over a time span of several days is presented. The analysis is based on the amplitude decay and phase shift of temperature waves with depth. Diurnal and other high frequency temperature variations are used to compute thermal diffusivities which in turn are used to model and remove the effect of the annual temperature wave. The analysis considers both a homogeneous half space and a two layer medium consisting of an overburden of finite thickness overlying a semi-infinite substratum. The method was tested in three holes in the Crystal Hot Springs geothermal field. Temperatures in each hole were recorded once a minute over a period of three days with a probe containing thermistors at eight different depths. Five of the thermistors were positioned at shallow depths (less than or equal to 0.5 m) to monitor diurnal and other high frequency waves and three at greater depths (greater than or equal to 1 m) to measure lower frequency variations. Since measurements were recorded at only three sites, the accuracy and reliability of the method is not fully evaluated. Potential …
Date:
January 1, 1986
Creator:
Howell, Jack & Chapman, David S.
System:
The UNT Digital Library
Analysis of the April 18, 1986 UF[sub 6] release test
On April 18 1986 a controlled uranium hexafluoride (UF[sub 6])release test was conducted at a CESTA (a French government agency) test site near Bordeaux, France. During the test, 45.8 kg of UF[sub 6] vapor a time interval of 605 s from a 3.15-m high, 0.05-m diameter pipe at a rate of 75.7 kg/s. The exit velocity was 3.46 m/s, and the average exit temperature was 108[degree]C. Information collected during the release test included: meteorological data, measurements of uranium and fluorine concentrations deposition data, and particle size distribution data. Data collected was evaluated and compared to the UF[sub 6] dispersion model.
Date:
October 1, 1986
Creator:
Just, R. A.
System:
The UNT Digital Library
Analysis of the April 18, 1986 UF{sub 6} release test. Draft
On April 18 1986 a controlled uranium hexafluoride (UF{sub 6})release test was conducted at a CESTA (a French government agency) test site near Bordeaux, France. During the test, 45.8 kg of UF{sub 6} vapor a time interval of 605 s from a 3.15-m high, 0.05-m diameter pipe at a rate of 75.7 kg/s. The exit velocity was 3.46 m/s, and the average exit temperature was 108{degree}C. Information collected during the release test included: meteorological data, measurements of uranium and fluorine concentrations deposition data, and particle size distribution data. Data collected was evaluated and compared to the UF{sub 6} dispersion model.
Date:
October 1, 1986
Creator:
Just, R. A.
System:
The UNT Digital Library
Analytic Grad-Shafranov test criteria and checks of a 1-1/2-D BALDUR code
As discussed by Shafranov, Solov'ev, and others, two special constraints allow the Grad-Shafranov equation to yield simple analytic solutions. From the simplest solution, formulae are derived for properties of the corresponding toroidally symmetric plasma and for the space profile of poloidal magnetic flux density. These formulae constitute test criteria for code performance once the code is made consistent with the two constraints. Obtaining consistency with the first constraint is straightforward, but with the second it is circumstantial. Moreover, the poloidal flux profile of the analytic solution implies a certain artificial form for the resistivity, which is also derived. These criteria have been used to check a composite code which had been assembled by linking a geometrically generalized 1-D BALDUR transport code with a computationally efficient 2-D equilibrium code. A brief description of the composite code is given as well as of its performance with respect to the Grad-Shafranov test criteria.
Date:
May 1, 1986
Creator:
Seidl, F.G.P.
System:
The UNT Digital Library
Analytical and numerical models for estimating the effect of exhaust ventilation on radon entry in houses with basements or crawl spaces
Mechanical exhaust ventilation systems are being installed in newer, energy-efficient houses and their operation can increase the indoor-outdoor pressure differences that drive soil gas and thus radon entry. This thesis presents simplified models for estimating the pressure driven flow of radon into houses with basements or crawl spaces, due to underpressures induced by indoor-outdoor temperature differences, wind, or exhaust ventilation. A two-dimensional finite difference model is presented and used to calculate the pressure field and soil gas flow rate into a basement situated in soil of uniform permeability. A simplified analytical model is compared to the finite difference model with generally very good agreement. Another simplified model is presented for houses with a crawl space. Literature on radon research is also reviewed to show why pressure driven flow of soil gas is considered to be the major source of radon entry in houses with higher-than-average indoor radon concentrations. Comparisons of measured vs. calculated indoor radon concentrations for a house with a basement showed the simplified basement model underpredicting on average by 25%. For a house with a crawl space the simplified crawl space model overpredicted by 23% when the crawl space vents are open and 48% when the crawl space …
Date:
August 1, 1986
Creator:
Mowris, R.J.
System:
The UNT Digital Library
Analytical Chemistry Division annual progress report for period ending December 31, 1985
Progress reports are presented for the four major sections of the division: analytical spectroscopy, radioactive materials laboratories, inorganic chemistry, and organic chemistry. A brief discussion of the division's role in the Laboratory's Environmental Restoration and Facilities Upgrade is given. Information about quality assurance and safety programs is presented, along with a tabulation of analyses rendered. Publications, oral presentations, professional activities, educational programs, and seminars are cited.
Date:
May 1, 1986
Creator:
Shults, W. D.
System:
The UNT Digital Library
Analyzing powers and proton spin transfer coefficients in the elastic scattering of 800 MeV polarized protons from an L-type polarized deuteron target at small momentum transfers
Analyzing powers and spin transfer coefficients which describe the elastic scattering of polarized protons from a polarized deuteron target have been measured. The energy of the proton beam was 800 MeV and data were taken at laboratory scattering angles of 7, 11, 14, and 16.5 degrees. One analyzing power was also measured at 180 degrees. Three linearly independent orientations of the beam polarization were used and the target was polarized parallel and antiparallel to the direction of the beam momentum. The data were taken with the high resolution spectrometer at the Los Alamos Meson Physics Facility (experiment 685). The results are compared with multiple scattering predictions based on Dirac representations of the nucleon-nucleon scattering matrices. 27 refs., 28 figs., 4 tabs.
Date:
October 1, 1986
Creator:
Adams, D.L.
System:
The UNT Digital Library
Ancillary effects of selected acid deposition control policies
NAPAP is examining a number of potential ways to reduce the precursors (sulfur dioxide and nitrogen oxides) to acid deposition. However, the policies to reduce acid deposition will have other physical, biological and economic effects unrelated to acid deposition. For example, control policies that reduce sulfur dioxide emissions may also increase visibility. The effects of an acid deposition policy that are unrelated to acid deposition are referred to as ''ancillary'' effects. This reserch identifies and characterizes the principle physical and economic ancillary effects associated with acid deposition control and mitigation policies. In this study the ancillary benefits associated with four specific acid deposition policy options were investigated. The four policy options investigated are: (1) flue gas desulfurization, (2) coal blending or switching, (3) reductions in automobile emissions of NO/sub x/, and (4) lake liming. Potential ancillary benefits of each option were identified and characterized. Particular attention was paid to the literature on economic valuation of potential ancillary effects.
Date:
August 1, 1986
Creator:
Moe, R.J.; Lyke, A. J. & Nesse, R. J.
System:
The UNT Digital Library
ANDROS: A code for Assessment of Nuclide Doses and Risks with Option Selection
ANDROS (Assessment of Nuclide Doses and Risks with Option Selection) is a computer code written to compute doses and health effects from atmospheric releases of radionuclides. ANDROS has been designed as an integral part of the CRRIS (Computerized Radiological Risk Investigation System). ANDROS reads air concentrations and environmental concentrations of radionuclides to produce tables of specified doses and health effects to selected organs via selected pathways (e.g., ingestion or air immersion). The calculation may be done for an individual at a specific location or for the population of the whole assessment grid. The user may request tables of specific effects for every assessment grid location. Along with the radionuclide concentrations, the code requires radionuclide decay data, dose and risk factors, and location-specific data, all of which are available within the CRRIS. This document is a user manual for ANDROS and presents the methodology used in this code.
Date:
November 1, 1986
Creator:
Begovich, C. L.; Sjoreen, A. L.; Ohr, S. Y. & Chester, R. O.
System:
The UNT Digital Library