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Irradiation Processing Department Monthly Record Report
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Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipline Leak Detection Progress Report
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SHIVA laser: nearing completion
Construction of the Shiva laser system is nearing completion. This laser will be operating in fall 1977 and will produce over 20 terawatts of focusable power in a subnanosecond pulse. Fusion experiments will begin early in 1978. It is anticipated that thermonuclear energy release equal to one percent that of the incident light energy will be achieved with sub-millimeter deuterium-tritium targets. From other experiments densities in excess of a thousand times that of liquid are also expected.
Date:
May 12, 1977
Creator:
Glaze, James A. & Godwin, Robert O.
Object Type:
Article
System:
The UNT Digital Library
GENVAR: a general linear computer program for model forecasting and variance analysis. [In LRLTRAN for CDC 7600 computer]
This report describes GENVAR, an interactive computer program which can perform a least-squares fit to the matrix equation ..beta..X = Y, where X is a matrix of observable inputs and Y is a vector of observable outcomes for the input values. The program is controlled by teletypewriter, and is written in LRLTRAN for compilation by CHAT and execution on a CDC 7600. The report describes the way the program operates as well as ways GENVAR can be used to make statistically considered forecasts. Samples of graphic output and the source code listing (GLMVAR) are provided. 2 figures, 3 tables.
Date:
January 12, 1977
Creator:
Stratton, S. D.
Object Type:
Report
System:
The UNT Digital Library
Issues in radioactive-waste management for fusion power
Analysis of recent conceptual designs reveals that commercial fusion power systems will raise issues of occupational and public health and safety. This paper focuses on radioactive wastes from fusion reactor materials activated by neutrons. The analysis shows that different selections of materials and neutronic designs can make differences in orders-of-magnitude of the kinds and amounts of radioactivity to be expected. By careful and early evaluation of the impacts of the selections on waste management, designers can produce fusion power systems with radiation from waste well below today's limits for occupational and public health and safety.
Date:
October 12, 1982
Creator:
Maninger, R. C. & Dorn, D. W.
Object Type:
Article
System:
The UNT Digital Library
Summary of geology at the ERDA--MAGMA--SDG and E geothermal test site
A summary is given of the geologic structure of the test facility in Imperial County. The analysis is based on well records, especially electrical logs. (LBS)
Date:
January 12, 1976
Creator:
Towse, D. F. & Palmer, T. D.
Object Type:
Report
System:
The UNT Digital Library
Mass storage for microprocessor farms
Experiments in high energy physics require high density and high speed mass storage. Mass storage is needed for data logging during the online data acquisition, data retrieval and storage during the event reconstruction and data manipulation during the physics analysis. This paper examines the storage and speed requirements at the first two stages of the experiments and suggests a possible starting point to deal with the problem. 3 refs., 3 figs.
Date:
January 12, 1990
Creator:
Areti, H.
Object Type:
Report
System:
The UNT Digital Library
MAFJ: some simple additions to MAFCO. [Generates magnetic fields resulting from collections of current elements, for CDC 7600 computer]
MAFJ is a revision of the MAFCO code which generates magnetic fields (B) resulting from collections of current elements. In addition to the original MAFCO's capabilities, MAFJ follows field lines through a region of interest and calculates integrals of functions along these lines. It can also generate three-dimensional grids of B. MAFJ runs from eight to 15 times faster than MAFCO, depending on the types of current elements chosen. 2 tables.
Date:
January 12, 1976
Creator:
Finan, C. H., III & McNamara, B.
Object Type:
Report
System:
The UNT Digital Library
Radioactivity in gaseous waste discharged from the separations facilities during 1975
During 1975, approximately 1.33 x 10/sup 13/ liters of gaseous effluents were monitored for radioactivity by the stack sampling program. A summary of the measured radioactivity was as follows: alpha (assumed source--Pu)--1.45 x 10/sup -3/ Ci and beta--0.418 Ci.
Date:
March 12, 1976
Creator:
Anderson, J. D.
Object Type:
Report
System:
The UNT Digital Library
LPTR irradiation of ORNL magnesium oxide crystals
Data and information concerning irradiation of MgO crystals in position E-1 of the reactor core are presented. Data are included on neutron energy, neutron flux, irradiation time, and neutron dose. (JRD)
Date:
November 12, 1975
Creator:
MacLean, S. C. & Rowe, C. L.
Object Type:
Report
System:
The UNT Digital Library
Photodensitometer measurements of images on radiographs
An x-ray photodensitometer provided accurate and precise measurements of linear dimensions on radiograph images. These measurements helped to infer the hidden dimensions of objects radiographed. A goal was to achieve an accuracy of +-25 ..mu..m. The recorded accuracy did not measure up to the precision, which, under favorable conditions, was +-25 ..mu..m. Systematic errors caused the errors in absolute value to be considerably higher in some cases. To satisfy this, auxiliary calibrations were made. Many deterrents to successful measurement arose. These included film grain noise, excessive density range and edge penetration, blurring, interfering structures, and scattered radiation. Film grain noise, in particular, limited the resolution of small details (fine structure) in a radiograph. Because of so many deterrents, the applicability of the measurement method used appears quite limited.
Date:
March 12, 1976
Creator:
Taylor, G. M.
Object Type:
Report
System:
The UNT Digital Library
KIPS GDS teardown
Phase I of the Kilowatt Isotope Power System Program required a 1000 endurance test on the Ground Demonstration System (GDS). This report covers the teardown and inspection of the GDS after completion of over 1000 accumulated hr. After 1124.1 hours of operation, the GDS was torn down and inspected. The longest continuous run was 573.9 hr. With one exception, all shutdowns were intentional. The unintentional shutdown was not related to system operation, terminating a 447.8 hr run. The unit was restarted and the 573.9 hr run was completed. The minimum time component in the GDS, the NaK filled thermal sensor, accumulated 1043.1 operating hr. In general, the hardware was in excellent condition. Cases where discrepancies were noted are listed.
Date:
February 12, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Biological effects of radiation and related biochemical and physical studies. Proposal 3. Metabolic studies in cancer with radioactive isotopes. Progress report, October 1, 1975--September 30, 1976. [Lead]
Separate abstracts were prepared for seven sections of this report that discuss diagnostic techniques using radioisotopes as tracers.
Date:
November 12, 1976
Creator:
Laughlin, J. S. & Myers, W. P. L.
Object Type:
Report
System:
The UNT Digital Library
SIGHDT: atomic and molecular cross sections for hydrogen isotopes
SIGHDT is a function subroutine for approximating reaction cross sections for hydrogen isotopes. It is available on the OCTOPUS and Controlled Thermonuclear Research (CTR) networks at Lawrence Livermore Laboratory.
Date:
January 12, 1976
Creator:
Finan, C. A. III.
Object Type:
Report
System:
The UNT Digital Library
Biological effects of static and low-frequency electromagnetic fields: an overview of United States literature
Results are reviewed from a number of studies on the biological effects of static and low frequency electromagnetic fields on animals. Based on a long history of experience with electric fields by the utility industry, it appears that intermittent and repeated exposures to strong 60-Hz electromagnetic fields from present power transmission systems have no obvious adverse effect on the health of man. It has been recognized recently that this belief must be tested by carefully designed and executed experiments under laboratory conditions where precise control can be exercised over coexisting environmental factors. A number of studies have been initiated in response to this need to evaluate possible effects from both acute and chronic exposures. 100 references.
Date:
April 12, 1977
Creator:
Phillips, R. D. & Kaune, W. T.
Object Type:
Report
System:
The UNT Digital Library
Reservoir engineering report for the magma-SDG and E geothermal experimental site near the Salton Sea, California
A description of the Salton Sea geothermal reservoir is given and includes approximate fault locations, geology (lithology), temperatures, and estimates of the extent of the reservoir. The reservoir's temperatures and chemical composition are also reviewed. The flow characteristics are discussed after analyses of drillstem tests and extended well tests. The field production, reserves and depletion are estimated, and the effects of fractures on flow and depletion are discussed. The reservoir is believed to be separated into an ''upper'' and ''lower'' portion by a relatively thick and continuous shale layer. The upper reservoir is highly porous, with high permeability and productivity. The lower reservoir is at least twice as large as the upper but has much lower storativity and permeability in the rock matrix. The lower reservoir may be highly fractured, and its temperatures and dissolved solids are greater than those of the upper reservoir. The proven reserves of heat in the upper reservoir are about /sup 1///sub 4/ GW.yr (in the fluid) and /sup 1///sub 3/ GW.yr (in the rock). In the lower reservoir the proven reserves of heat are 5/sup 3///sub 4/ GW.yr (in the fluid) and 17 GW.yr (in the rock). Unproven reserves greatly exceed these numbers. Injection …
Date:
July 12, 1976
Creator:
Schroeder, R. C.
Object Type:
Report
System:
The UNT Digital Library
Some aspects of the mechanism of bacteriophage function. Final progress report. [Mechanisms of inactivation of bacteriophages by ionizing radiation]
Data are summarized from a ten-year study on the radiobiology of phages. The results showed that: phages are inactivated principally by damage to DNA; DNA damage is of two types, base damage and double-strand breakage; double-strand breakage may be lethal because of interruption within a gene, however in phage systems the damage is more fundamental in that only a single DNA fragment is injected into the host; E. coli phage T4 is relatively resistant to inactivation by x-rays; and the rate of production of strand breaks and base damage is nearly the same in bacteriophage and bacteria.
Date:
June 12, 1977
Creator:
Freifelder, D.
Object Type:
Report
System:
The UNT Digital Library
Discriminator/time interval meter system evaluation report
The purpose of this report is to discuss the evaluation of a modular prototype Discriminator/Time Interval Meter data acquisition unit as a useful tool in a digital diagnostics system. The characteristics, operation and calibration of each of the hardware components are discussed in some detail. A discussion of the system calibration, operation, and data ingestion and reduction is also given. System test results to date are given and discussed. Finally, recommendations and conclusions concerning the capabilities of the Discriminator/T.I.M. system based on test and calibration results to date are given.
Date:
April 12, 1976
Creator:
Condreva, K. J.
Object Type:
Report
System:
The UNT Digital Library
Pesticide residue analysis of storm-drain waters, 1975
Runoff-water samples for the first, third, and fourth quarters of 1975 were analyzed for pesticide residues at LLL and independently by the LFE Environmental Analysis Laboratories. For the compounds analyzed, upper limits to possible contamination were placed conservatively at the low parts-per-billion level. In addition, soil samples were also analyzed. Future work will continue to include quarterly sampling and will be broadened in scope to include quantitative analysis of a larger number of compounds. A study of recovery efficiency is planned. Because of the high backgrounds on soil samples together with the uncertainties introduced by the cleanup procedures, there is little hope of evaluating the distribution of a complex mixture of pesticides among the aqueous and solid phases in a drainage sample. No further sampling of soil from the streambed is therefore contemplated.
Date:
March 12, 1976
Creator:
Distler, T. M. & Wong, C. M.
Object Type:
Report
System:
The UNT Digital Library
Application of Yerzley mechanical oscillograph to testing of Y3333 cellular silicone (progress report 1). [Density; thickness; resilience; effective dynamic modulus]
The usefulness of the Yerzley mechanical oscillograph in detecting differences among Y3333 cellular silicones was evaluated. Four properties of Y3333 were measured: density, thickness, resilience, and effective dynamic modulus. Test samples came from five lots of standard Y3333 compound and from two lots of experimental Y3333. Tests of the four properties revealed that individual sheets of Y3333 were homogeneous. Since sheets from the same lot differed little in properties, normal process variations had minimal effect on properties. Although lot-to-lot variation of standard Y3333 was statistically significant, the coefficients of variation of 5 percent or less indicated a reasonable consistency among the five lots tested. The two experimental lots of Y3333, made with known material and manufacturing variables, showed a response to the variations but maintained low coefficients of variation. After evaluating the Yerzley instrument, it was decided that it demonstrated its worth for detecting differences among Y3333 cellular silicones.
Date:
March 12, 1976
Creator:
Cady, W. E. & Caley, L. E.
Object Type:
Report
System:
The UNT Digital Library
Present status of mirror stability theory. [Review of 2X and MX programs]
A status report of microinstability as it applies to 2XIIB and MX theory for mirror machines is presented. It is shown that quasilinear computations reproduce many of the parameters observed in the 2XIIB experiment. In regard to large mirror machines, there are presented detailed calculations of the linear theory of the drift cyclotron loss-cone mode, with inhomogeneous geometry and nonlinear diffusive effects. Further, the stability of a mirror machine to the Alfven ion-cyclotron instability is assessed, and the Baldwin-Callen diffusion is estimated for a spatially varying plasma.
Date:
March 12, 1976
Creator:
Baldwin, D E; Berk, H L & Byers, J A
Object Type:
Report
System:
The UNT Digital Library
Molten salt extraction of americium from molten plutonium metal
The chemical basis for molten salt extraction separation of americium from plutonium is presented. The extraction factor relationship is used to quantify this liquid-liquid extraction (molten salt-molten metal) unit operation. The amount of salt required for an optimum process is an order of magnitude lower than the amount used previously in the production operation of the process.
Date:
March 12, 1976
Creator:
Knighton, J. B.; Auge, R. G.; Berry, J. W. & Franchini, R. C.
Object Type:
Report
System:
The UNT Digital Library
Intense, pulsed, ion-diode sources and their application to mirror machines
Startup conditions for future mirror fusion experiments require a rapidly formed target plasma of approximately 0.5 coulomb of ions with energy of 50 to 100 keV. Theory suggests that very intense ion-flux emission satisfying these requirements can be extracted from a pulsed ion diode. Developing such sources would be an ideal CTR application of the high-power, single-shot capability of pulsed power technology. Recent experimental results are reviewed in which approximately 2 kA/cm/sup 2/ of D/sup +/ at approximately 50 keV was extracted. In the experiment, an intense relativistic electron beam undergoes many transits through a solid but range-thin anode foil. With each transit the electrons lose energy, causing their trajectories to collapse toward the anode surface. In so doing, the increased space charge extracts an intense ion flux from the anode foil's plasma. Observations are reported on the importance of diode stability. The general agreement between theoretical scaling laws and experimental results are also presented.
Date:
November 12, 1975
Creator:
Prono, D. S.; Shearer, J. W. & Briggs, R. J.
Object Type:
Article
System:
The UNT Digital Library
Creep deformation and rupture behavior of type 304/308 stainless steel structural weldments
The creep deformation and rupture of type 304/308 stainless steel structural weldments at 593/sup 0/C (1100/sup 0/F) was experimentally investigated to study the comparative behavior of the base metal and weld metal constituents. The tests were conducted in support of ORNL's program to develop high-temperature structural design methods applicable to liquid-metal fast breeder reactor (LMFBR) system components that operate in the creep range. The specimens used were thin-walled, right circular cylinders capped with either flat or hemispherical heads and tested under internal gas pressure. Circumferential welds were located in different regions of the cylinder or head and, with one exception, were geometrically duplicated by all base metal regions in companion specimens. Results are presented on the comparative deformation and rupture behavior of selected points in the base metal and weldment regions of the different specimens and on the overall surface strains for selected specimens.
Date:
May 12, 1977
Creator:
McAfee, W. J.; Richardson, M. & Sartory, W. K.
Object Type:
Report
System:
The UNT Digital Library
Characterization of embryo-specific genes
The objective of the proposed research is to characterize the function and regulation of a set of embryonic genes which are expressed in the embryos, not in the plants. 22 cDNA clones were isolated from a cDNA library we constructed using mRNAS of -carrot somatic embryos. These cDNA clones identified mRNA species that are present in the somatic and zygotic embryos, but not in adult plants. The sequence of all 22cDNA clones were determined; genomic clones for three cDNA clones, DC8, DC59, and DC49 were isolated and gene sequences determined. DC8, DC49, and several other genes identified by the cDNA sequences belong to the category of late embryogenesis abundant protein genes, Lea. The function of these gens have not yet been determined, but they share common structural features, are regulated by ABA and are speculated to play a role in seed desiccation.
Date:
June 12, 1992
Creator:
Sung, R.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Failure Modes, Effects and Criticality Analysis (FMECA) of the conceptual Brayton Isotope Power System (BIPS) Flight System
A failure modes, effects and criticality analysis (FMECA) was made of the Brayton Isotope Power System Flight System (BIPS-FS) as presently conceived. The components analyzed include: Mini-BRU; Heat Source Assembly (HSA); Mini-Brayton Recuperator (MBR); Space Radiator; Ducts and Bellows, Insulation System; Controls; and Isotope Heat Source (IHS). (TFD)
Date:
January 12, 1976
Creator:
Miller, L. G.
Object Type:
Report
System:
The UNT Digital Library