ACDOS3: a further improved neutron dose-rate code (open access)

ACDOS3: a further improved neutron dose-rate code

ACD0S3 is a computer code designed primarily to calculate the activities and dose rates produced by neutron activation in a variety of simple geometries. Neutron fluxes, in up to 50 groups and with energies up to 20 MeV, must be supplied as part of the input data. The neutron-source strength must also be supplied, or alternately, the code will compute it from neutral-beam operating parameters in the case where the source is a fusion-reactor injector. ACD0S3 differs from the previous version ACD0S2 in that additional geometries have been added, the neutron cross-section library has been updated, an estimate of the energy deposited by neutron reactions has been provided, and a significant increase in efficiency in reading the data libraries has been incorporated.
Date: July 1, 1982
Creator: Martin, C.S.
Object Type: Report
System: The UNT Digital Library
ACTVE News, Volume 13, Number 7, July 1982 (open access)

ACTVE News, Volume 13, Number 7, July 1982

Newsletter issued by the Advisory Council for Technical-Vocational Education in Texas discussing news, events, and other relevant information related to technical and vocational education for adults in Texas.
Date: July 1982
Creator: Advisory Council for Technical-Vocational Education in Texas
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Analysis of sawtooth relaxation oscillations in tokamaks (open access)

Analysis of sawtooth relaxation oscillations in tokamaks

Sawtooth relaxation oscillations are analyzed using the Kadomtsev's disruption model and a thermal relaxation model. The sawtooth period is found to be very sensitive to the thermal conduction loss. Qualitative agreement between these calculations and the sawtooth period observed in several tokamaks is demonstrated.
Date: July 1, 1982
Creator: Yamazaki, K.; McGuire, K. & Okabayashi, M.
Object Type: Report
System: The UNT Digital Library
Application of the Green's function method to some nonlinear problems of an electron storage ring: Part 1, The Green's function for the Fokker-Planck equation (open access)

Application of the Green's function method to some nonlinear problems of an electron storage ring: Part 1, The Green's function for the Fokker-Planck equation

For an electron storage ring the beam size evaluation including beam-beam interaction gives an example of such a problem. Another good example is finding the beam size for a nonlinear machine. The present work gives a way to solve some of these problems, at least in principle. The approach described here is an application of the well known Green's function method, which in this case is applied to the Fokker-Planck equation governing the distribution function in the phase space of particle motion. The new step made in this paper is to consider the particle motion in two degrees of freedom rather than in one dimension, a characteristic of all the previous work. This step seems to be necessary for an adequate description of the problem, at least for the class of problems which are considered below. This work consists of the formal solution of the Fokker-Planck equation in terms of its Green's function and describing the Green's function itself. The Green's function and the description of some of its properties can be found in the Appendices. I discuss the distribution function in the transverse phase space of a particle and it's Fokker-Planck equation for a simple case of a weak …
Date: July 1, 1982
Creator: Kheifets, S.
Object Type: Report
System: The UNT Digital Library
Assessment of microbial processes on radionuclide mobility in shallow land burial. [West Valley, NY; Beatty, Nevada; Maxey Flats, Kentucky] (open access)

Assessment of microbial processes on radionuclide mobility in shallow land burial. [West Valley, NY; Beatty, Nevada; Maxey Flats, Kentucky]

The impact of microbial metabolism of the organic substituents of low level radioactive wastes on radionuclide mobility in disposal sites, the nature of the microbial transformations involved in this metabolism and the effect of the prevailing environmental parameters on the quantities and types of metabolic intermediates accumulated were examined. Since both aerobic and anaerobic periods can occur during trench ecosystem development, oxidation capacities of the microbial community in the presence and absence of oxygen were analyzed. Results of gas studies performed at three commercial low level radioactive waste disposal sites were reviewed. Several deficiencies in available data were determined. Further research needs are suggested. This assessment has demonstrated that the biochemical capabilities expressed within the low level radioactive waste disposal site are common to a wide variety of soil bacteria. Hence, assuming trenches would not be placed in sites with such extreme abiotic conditions that all microbial activity is precluded, the microbial populations needed for colonization and decomposition of the organic waste substances are readily provided from the waste itself and from the soil of existing and any proposed disposal sites. Indeed, considering the ubiquity of occurrence of the microorganisms responsible for waste decomposition and the chemical nature of the …
Date: July 1, 1982
Creator: Colombo, P.; Tate, R.L. III & Weiss, A.J.
Object Type: Report
System: The UNT Digital Library
An Assessment of second-generation compressed-air energy-storage concepts (open access)

An Assessment of second-generation compressed-air energy-storage concepts

The Pacific Northwest Laboratory (PNL) conducted an assessment of the adiabatic compressed air energy storage (CAES), hybrid CAES, CAES with coal gasification, and CAES with pressurized fluidized bed combustion concepts based on information provided in conceptual design studies. The PNL assessment covered consideration of the technological readiness, relative economic benefits, and operational viability of each concept. It was concluded that the adiabatic CAES concept appears to be the most attractive candidate for utility application in the near future. It is operationally viable, economically attractive compared with competing concepts, and will require relatively little additional development before plant construction can be undertaken. It was estimated that a utility could start the design of a demonstration plant in 2 to 3 years if research regarding thermal energy storage system design is undertaken in a timely manner. The hybrid CAES concept should also be considered as a candidate for early application. It is similarly operationally viable and close to readiness; however, it is less economically attractive. The hybrid CAES concept has a more favorable charging ratio, which may increase its attractiveness in comparison to adiabatic CAES for some utilities.
Date: July 1, 1982
Creator: Zaloudek, F.R. & Reilly, R.W.
Object Type: Report
System: The UNT Digital Library
Behavior of nuclei at high angular momentum (open access)

Behavior of nuclei at high angular momentum

The present report begins with a brief overview of nuclear shapes and level structures at high-spin values. The new spectroscopy associated with angular-momentum alignments is described, and some of the exciting possibilities of this spectroscopy are explored. Nuclear moments of inertia are discussed and a somewhat different one is defined, together with a method for measuring it and some early results. Finally a few comments on the future prospects for high-spin physics are offered.
Date: July 1, 1982
Creator: Stephens, F.S.
Object Type: Article
System: The UNT Digital Library
Bench Marks for School District Budgets in Texas: 1982 (open access)

Bench Marks for School District Budgets in Texas: 1982

Annual statistical report suggesting benchmarks for school budgeting based on financial, personnel, and taxing information submitted by local school districts to state agencies.
Date: July 1982
Creator: Texas Research League
Object Type: Report
System: The Portal to Texas History
Bubble-chamber experiments on charmed-particle lifetimes (open access)

Bubble-chamber experiments on charmed-particle lifetimes

The three current bubble-chamber experiments on charmed-particle lifetimes are compared. Their most recently released results are discussed.
Date: July 1, 1982
Creator: Field, R.C.
Object Type: Article
System: The UNT Digital Library
Calibration of a photometer for measurement of the cosmic microwave background (open access)

Calibration of a photometer for measurement of the cosmic microwave background

In this paper we describe the calibration of a photometer designed to measure the cosmic microwave background radiation in the frequency range from 3 to 10 cm/sup -1/. The general problem of absolute calibration for such measurements is discussed. The design of a new experiment which is different in most important respects from the Woody-Richards experimentis then presented. A mathematical model of the calibration procedure is developed which includes an analysis of ways in which the procedure can fail to give accurate results.
Date: July 1, 1982
Creator: Bonomo, J.L.; Peterson, J.B.; Richards, P.L. & Timusk, T.
Object Type: Article
System: The UNT Digital Library
Candidate wind turbine generator site: annual data summary, January 1981-December 1981 (open access)

Candidate wind turbine generator site: annual data summary, January 1981-December 1981

Summarized hourly meteorological data for 34 candidate and wind turbine generator sites for calendar year 1981 are presented. These data are collected for the purpose of evaluating the wind energy potential at these sites and are used to assist in selection of potential sites for installation and testing of large wind turbines in electric utility systems. For each site, wind speed, direction, and distribution data are given in eight tables. Use of information from these tables, with information about specific wind turbines, should allow the user to estimate the potential for wind energy production at each site.
Date: July 1, 1982
Creator: Sandusky, W. F.; Buck, J. W.; Renne, D. S.; Hadley, D. L. & Abbey, O. B.
Object Type: Report
System: The UNT Digital Library
Carbon dioxide-krypton separation and radon removal from nuclear-fuel-reprocessing off-gas streams (open access)

Carbon dioxide-krypton separation and radon removal from nuclear-fuel-reprocessing off-gas streams

General Atomic Company (GA) is conducting pilot-plant-scale tests that simulate the treatment of radioactive and other noxious volatile and gaseous constituents of off-gas streams from nuclear reprocessing plants. This paper reports the results of engineering-scale tests performed on the CO/sub 2//krypton separation and radon holdup/decay subsystems of the GA integrated off-gas treatment system. Separation of CO/sub 2/ from krypton-containing gas streams is necessary to facilitate subsequent waste processing and krypton storage. Molecular sieve 5A achieved this separation in dissolver off-gas streams containing relatively low krypton and CO/sub 2/ concentrations and in krypton-rich product streams from processes such as the krypton absorption in liquid carbon dioxide (KALC) process. The CO/sub 2//krypton separation unit is a 30.5-cm-diameter x 1.8-m-long column containing molecular sieve 5A. The loading capacity for CO/sub 2/ was determined for gas mixtures containing 250 ppM to 2.2% CO/sub 2/ and 170 to 750 ppM krypton in either N/sub 2/ or air. Gas streams rich in CO/sub 2/ were diluted with N/sub 2/ to reduce the temperature rise from the heat of adsorption, which would otherwise affect loading capacity. The effluent CO/sub 2/ concentration prior to breakthrough was less than 10 ppM, and the adsorption capacity for krypton was negligible. …
Date: July 1, 1982
Creator: Hirsch, P. M.; Higuchi, K. Y. & Abraham, L.
Object Type: Article
System: The UNT Digital Library
Central airport energy systems using alternate energy sources (open access)

Central airport energy systems using alternate energy sources

The purpose of this project was to develop the concept of a central airport energy system designed to supply energy for aircraft ground support and terminal complex utility systems using municipal waste as a fuel. The major task was to estimate the potential for reducing aircraft and terminal fuel consumption by the use of alternate renewable energy sources. Additional efforts included an assessment of indirect benefits of reducing airport atmospheric and noise pollution.
Date: July 1, 1982
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Cerro Prieto geothermal field: exploration during exploitation (open access)

Cerro Prieto geothermal field: exploration during exploitation

Geological investigations at Momotombo included photogeology, field mapping, binocular microscope examination of cuttings, and drillhole correlations. Among the geophysical techniques used to investigate the field sub-structure were: Schlumberger and electromagnetic soundings, dipole mapping and audio-magnetotelluric surveys, gravity and magnetic measurements, frequency domain soundings, self-potential surveys, and subsurface temperature determinations. The geochemical program analyzed the thermal fluids of the surface and in the wells. The description and results of exploration methods used during the investigative stages of the Momotombo Geothermal Field are presented. A conceptual model of the geothermal field was drawn from the information available at each exploration phase. The exploration methods have been evaluated with respect to their contributions to the understanding of the field and their utilization in planning further development.
Date: July 1, 1982
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Characterization methods for ultrasonic test systems (open access)

Characterization methods for ultrasonic test systems

Methods for the characterization of ultrasonic transducers (search units) and instruments are presented. The instrument system is considered as three separate components consisting of a transducer, a receiver-display, and a pulser. The operation of each component is assessed independently. The methods presented were chosen because they provide the greatest amount of information about component operation and were not chosen based upon such conditions as cost, ease of operation, field implementation, etc. The results of evaluating a number of commercially available ultrasonic test instruments are presented.
Date: July 1, 1982
Creator: Busse, L. J.; Becker, F. L.; Bowey, R. E.; Doctor, S. R.; Gribble, R. P. & Posakony, G. J.
Object Type: Report
System: The UNT Digital Library
Chemical characterization and genotoxic potential related to boiling point for fractionally distilled SRC-I coal liquids (open access)

Chemical characterization and genotoxic potential related to boiling point for fractionally distilled SRC-I coal liquids

This report summarizes selected research efforts oriented toward ameliorating the genotoxic potential of direct coal liquefaction materials through modification or optimization of process conditions. The studies described were conducted to evaluate the utility of optimized distillation for coal liquids from the SRC-I process. SRC-I process solvent was distilled into 50/sup 0/F-range boiling point (bp) cuts. Analysis of amino-PAH (APAH) showed that mutagenic APAHs containing 3 or more rings were found primarily in fractions boiling above 750/sup 0/F. Three microbial tester strains were used to screen for genetically active agents in the SRC-I distillate bp cuts. Reverse mutation with the Ames tester strain TA98 demonstrated that mutagens were concentrated in the bp cuts boiling above 700/sup 0/F. For this tester strain most of the genetic activity in these distillates was attributable to chemical fractions enriched in APAH having 3 or more rings. Mutagenicity data obtained with TA98 was in good agreement with sk in carcinogenesis results from the mouse-skin initiation/promotion (in vivo) test system. The strongest response in the forward mutation assay did not occur in the most carcinogenically active fractions. Results of initiation/promotion experiments used to measure the relative potency of bp cuts as initiators of mouse skin carcinogenesis again …
Date: July 1, 1982
Creator: Wilson, B. W.; Pelroy, R. A. & Mahlum, D. D.
Object Type: Report
System: The UNT Digital Library
Collision of fast highly charged ions in gas targets: ionization, recoil-ion production, and charge transfer (open access)

Collision of fast highly charged ions in gas targets: ionization, recoil-ion production, and charge transfer

Electron-capture, ionization, and recoil-ion-production cross sections are measured and calculated for fast highly charged projectiles in hydrogen and rare-gas targets. Recoil-ion-production cross sections are found to be large; the low energy and high charge states of the recoil ions make them useful for subsequent collision studies.
Date: July 1, 1982
Creator: Schalchter, A.S.; Berkner, K.H. & Beyer, H.F.
Object Type: Article
System: The UNT Digital Library
Comparative Safety Analysis of LNG Storage Tanks (open access)

Comparative Safety Analysis of LNG Storage Tanks

LNG storage tank design and response to selected release scenarios were reviewed. The selection of the scenarios was based on an investigation of potential hazards as cited in the literature. A review of the structure of specific LNG storage facilities is given. Scenarios initially addressed included those that most likely emerge from the tank facility itself: conditions of overfill and overflow as related to liquid LNG content levels; over/underpressurization at respective tank vapor pressure boundaries; subsidence of bearing soil below tank foundations; and crack propagation in tank walls due to possible exposure of structural material to cryogenic temperatures. Additional scenarios addressed include those that result from external events: tornado induced winds and pressure drops; exterior tank missile impact with tornado winds and rotating machinery being the investigated mode of generation; thermal response due to adjacent fire conditions; and tank response due to intense seismic activity. Applicability of each scenario depended heavily on the specific tank configurations and material types selected. (PSB)
Date: July 1, 1982
Creator: Fecht, B. A.; Gates, T. E.; Nelson, K. O. & Marr, G. D.
Object Type: Report
System: The UNT Digital Library
Component failure-rate data with potential applicability to a nuclear fuel reprocessing plant (open access)

Component failure-rate data with potential applicability to a nuclear fuel reprocessing plant

Approximately 1223 pieces of component failure-rate data, under 136 subject categories, have been compiled from published literature and computer searches of a number of data bases. Component selections were based on potential applicability to facilities for reprocessing spent nuclear fuels. The data will be useful in quantifying fault trees for probabilistic safety analyses and risk assessments.
Date: July 1, 1982
Creator: Dexter, A.H. & Perkins, W.C.
Object Type: Report
System: The UNT Digital Library
Component Leakage Testing in Residential Buildings (open access)

Component Leakage Testing in Residential Buildings

The common approach to leakage area measurements in residential housing through pressurization of an entire structure with a blower door. However, this technique does not provide quantitative measurements of the leakiness of individual building components. By pressurizing individual components, it is possible to determine the distribution of leakage within a structure. The studies described in this paper involved measurement of the leakage areas of fireplaces, bathroom and kitchen exhaust vents, electrical outlets and leakage in the ducts of forced air distribution systems. Component leakage measurements were made in a total of thirty-four houses in Atlanta, Georgia, Reno, Nevada and the San Francisco Bay area. Damperless fireplaces and ductwork were found to be the most significant sources of leakage in the western houses. In the Atlanta houses, where cooling loads dominate, the significant leakage area was in the ductwork of the distribution system for central air conditioning that passes through the unconditioned space in the attic and crawlspace.
Date: July 1, 1982
Creator: Dickerhoff, D. J.; Grimsrud, D. T. & Lipschutz, R. D.
Object Type: Article
System: The UNT Digital Library
Confinement studies with neutral-beam injection on PDX and PLT (open access)

Confinement studies with neutral-beam injection on PDX and PLT

Neutral beam injection experiments on PLT and PDX have been conducted over a wider range in parameter space than previously. On PLT H/sup 0/ beams have been injected into well-confined high toroidal field, high density Ohmic plasmas, giving n/sub e/(0) tau/sub Ee/ products during injection of up to 5 x 10/sup 12/ sec cm/sup -3/. tau/sub Ee/ is found to rise slowly with increasing density in these experiments. Comparing these results with earlier (1979) discharges, which showed much lower heating efficiency, the importance of starting with a hot Ohmic plasma and a peaked density profile is striking. On PDX high power injection experiments over a range in plasma current have shown a significant variation with current of both ion heating and total stored plasma energy. Transport analysis of these results indicates that global confinement drops little when I/sup p/ is varied from 480 to 320 kA, but as I/sup p/ falls to 200 kA, tau/sub E/ deteriorates significantly.
Date: July 1, 1982
Creator: Goldston, R.; Kaye, S. & Davis, S.
Object Type: Report
System: The UNT Digital Library
Conserving energy through new irrigation technologies. Technical briefing report (open access)

Conserving energy through new irrigation technologies. Technical briefing report

The benefits and applications of five irrigation technologies are explored: mobile drop-tube irrigation, computerized scheduling, reduced-pressure center pivots, well design and development, and automated gated-pipe systems. Perhaps the most promising of the new irrigation technologies is the low-energy, precision-application (LEPA) system. This mobile system used one-half the energy of conventional sprinkler systems and distributes water with greater efficiency through a series of low-pressure drop tubes suspended above the crop. Computerized methods of irrigation scheduling have been developed to help farmers conserve water and energy. Special computer programs determine when a crop needs water and how much to apply for optimal plant growth, thus preventing the unnecessary costs of pumping more water than the crop needs. Field test results show that replacing traditional scheduling methods of irrigation with computerized scheduling can reduce energy and water use by as much as 35%. The irrigation industry is actively promoting reduced-pressure water application methods, particularly for center-pivot systems. Reduced-pressure systems expend less energy but produce the same crop yields as conventional high-pressure systems, as long as excessive water runoff does not occur. If well design and development techniques are applied when a well is drilled into an unconsolidated acquifer, the well's life expectancy, as …
Date: July 1, 1982
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Construction of a Fermilab superferric test magnet (open access)

Construction of a Fermilab superferric test magnet

This technical memo documents the construction of a cold iron superconducting test magnet. The superferric magnet design was based on a concept sketch provided by Bob Wilson. Construction and dunk testing of the magnet in a liquid helium dewar took place in a time period of less than one week. The magnet operated successfully to its design field of 2 Tesla with no training.
Date: July 1, 1982
Creator: Heim, J.; Hinterberger, H. & Jagger, J.
Object Type: Report
System: The UNT Digital Library
Cost-benefits of a mobile, trailer-contained, vibratory finishing decontamination facility (open access)

Cost-benefits of a mobile, trailer-contained, vibratory finishing decontamination facility

The objective of this study was to determine the cost-benefits of a vibratory finishing process, developed at Pacific Northwest Laboratory (PNL), which has been used successfully to remove a variety of transuranic (TRU) contaminants from surfaces of metallic and nonmetallic wastes. Once TRU contaminants are removed, the metallic and nonmetallic materials can be disposed of as low-level waste (LLW). Otherwise, these materials would be disposed of in geologic repositories. This study provides an economic evaluation of the vibratory finishing process as a possible method for use in decontaminating and decommissioning retired facilities at Hanford and oher sites. Specifically, the economic evaluation focuses on a scoping design for a mobile, trailer-contained facility, which could be used in the field in conjunction with decontamination and decommissioning operations. The capital cost of the mobile facility is estimated to be about $1.09 million including contingency and working capital. Annual operating costs, including disposal costs, are estimated to be $440,000 for processing about 6340 ft/sup 3//yr of pre-sectioned, TRU-contaminated material. Combining the operating cost and the capital cost, annualized at a discount rate of 10%, the total annual cost estimate is $602,000. The unit cost for vibratory finishing is estimated to be about $11/ft/sup 3/ …
Date: July 1, 1982
Creator: Hazelton, R. F. & McCoy, M. W.
Object Type: Report
System: The UNT Digital Library