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Radon alpha-track survey of a potential geothermal resource area. [Buffalo Valley, Nevada]
None
Date:
October 1, 1974
Creator:
Wollenberg, H.A.
Object Type:
Report
System:
The UNT Digital Library
Intermediate-depth geothermal temperature study. Gradient holes: 11-33 and 63-33, Soda Lake, NV
During 1979, Chevron Resources Company drilled two 2000 ft holes near Soda Lake in the Nevada Carson Sink area to obtain subsurface data for inclusion in the US Department of Energy's Northern Basin and Range geothermal reservoir assessment program. Drilling information together with detailed lithologic, geophysical and temperature log data were compiled for each hole and is summarized in this report. Maximum stabilized temperatures of 297/sup 0/F and 367/sup 0/F were encountered at total depth in each of the holes, respectively.
Date:
October 1, 1979
Creator:
Hill, D.G.
Object Type:
Report
System:
The UNT Digital Library
Effect of fuel recycling on radioactivity and thermal power of high-level wastes
The radioactivity and thermal power of high-level and plutonium-bearing wastes from the nuclear fuel cycle have been calculated for the years 1975 to 2005 using the rate of generation of such wastes projected for the Generic Environmental Statement on Mixed Oxide Fuel (NUREG-0002). Three modes of fuel recycle are considered: (1) no recycle, (2) uranium recycle, and (3) prompt uranium and plutonium recycle. These cases are compared with a respect to radioactivity and thermal power of the generated waste, the waste shipments, and the accumulated inventories at reactor sites, reprocessing facilities, and ultimate disposal sites.
Date:
October 1, 1977
Creator:
Wachter, J.W.
Object Type:
Report
System:
The UNT Digital Library
High-energy proton radiation damage of high-purity germanium detectors
Motivated by their applicability to gamma-ray spectroscopy experiments in space, quantitative studies of radiation damage effects in high-purity germanium detectors due to high-energy charged particles have been initiated with the irradiation by 6 GeV/c protons of two 1.0 cm thick planar detectors maintained at 88/sup 0/K. The threshold for resolution degradation and the annealing characteristics differs markedly from those previously observed for detectors irradiated by fast neutrons. Under proton bombardment, degradation in the energy resolution was found to begin below 7 x 10/sup 7/ protons/cm/sup 2/, and increased proportionately in both detectors until the experiment was terminated at a total flux of 5.7 x 10/sup 8/ protons/cm/sup 2/, equivalent to about a six year exposure to cosmic-ray protons in space. At the end of the irradiation, the FWHM resolution measured at 1332 keV stood at 8.5 and 13.6 keV, with both detectors of only marginal utility as a spectrometer due to the severe tailing caused by charge trapping. The two detectors displayed a significant difference in proton damage sensitivity, which is consistent with fast neutron damage effects. To ensure that detector variability did not influence the comparison of proton- and neutron-induced damage effects, one of the detectors had been used …
Date:
October 1, 1977
Creator:
Pehl, R.H.; Varnell, L.S. & Metzger, A.E.
Object Type:
Article
System:
The UNT Digital Library
Calorimetric and optical beam diagnostics on the LBL 120-keV neutral beam test facility
The 120-keV Neutral Beam Test Facility at LBL is fitted with several types of instrumentation to determine the properties of the 10- to 15-A hydrogen and deuterium beams produced in this facility. These include a neutral particle dump for measuring the temperature profile generated by the beam, and a fixed and a moveable ion dump to measure the temperature profiles generated by the various ion components after they have been swept out of the neutral beam by a bending magnet. These several dumps provide enough information to determine the power density profiles and divergences of the neutral beam and the various ion beams for comparison with theoretical calculations, the beam composition, and the neutralization efficiency. The optical beam diagnostic consists of a high-resolution spectrometer coupled with a commercial optical multichannel analyzer. These instruments analyze Doppler-shifted optical radiation from the moving neutral atoms in the beam. Analysis of data so obtained provides the aiming directions and divergences of the various energy components in the neutral beam, as well as the beam composition.
Date:
October 1, 1977
Creator:
Burrell, C. F.; Cooper, W. S.; Steele, W. F. & Smith, R. R.
Object Type:
Article
System:
The UNT Digital Library
Development of an extended-burnup Mark B design. First semi-annual progress report, July-December 1978. Report BAW-1532-1. [PWR]
The primary objective of this program is to develop and demonstrate an improved PWR fuel assembly design capable of batch average burnups of 45,000-50,000 MWd/mtU. To accomplish this, a number of technical areas must be investigated to verify acceptable extended-burnup fuel performance. This report is the first semi-annual progress report for the program, and it describes work performed during the July-December 1978 time period. Efforts during this period included the definition of a preliminary design for a high-burnup fuel rod, physics analyses of extended-burnup fuel cycles, studies of the physics characteristics of changes in fuel assembly metal-to-water ratios, and development of a design concept for post-irradiation examination equipment to be utilized in examining high-burnup lead-test assemblies.
Date:
October 1, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Basic linear algebra subprograms for FORTRAN usage. [BLAS, in FORTRAN and assembly language for IBM 360/67, CDC 6600 and 7600, and Univac 1108]
A package of 38 low-level subprograms for many of the basic operations of numerical linear algebra is presented. The package is intended to be used with FORTRAN. The operations in the package are dot products, elementary vector operations, Givens transformations, vector copy and swap, vector norms, vector scaling, and the indices of components of largest magnitude. The subprograms and a test driver are available in portable FORTRAN. Versions of the subprograms are also provided in assembly language for the IBM 360/67, the CDC 6600 and CDC 7600, and the Univac 1108.
Date:
October 1, 1977
Creator:
Lawson, C.L.; Hanson, R.J.; Kincaid, D.R. & Krogh, F.T.
Object Type:
Report
System:
The UNT Digital Library
Survey of selected agencies conducted to determine the extent to which the nation's coals are adequately characterized
A survey was conducted to determine the extent to which the nation's coals were adequately characterized. Questionnaires were sent to 81 agencies in the coal community selected to form a representative cross section of the organizations concerned with coal characterization. Fifty-nine completed questionnaires were received. Respondents included representatives of the agencies with the longest experience in characterization and those in the best position to know the status of our knowledge of the composition and properties of the coals comprising the country's coal fields. Analysis of the responses to the questionnaire resulted in the following conclusions: The nation's coals are inadequately characterized for their efficient and effective use, particularly in relation to coal conversion technology and maintaining environmental quality; the number of agencies conducting coal characterization programs is too small to meet the nation's needs within the time frame required; and the scope of coal characterization programs should be expanded to develop a broader spectrum of basic compositional and performance data.
Date:
October 1, 1977
Creator:
Hower, J. M.; Davis, A.; Dolsen, C. P. & Spackman, W.
Object Type:
Report
System:
The UNT Digital Library
Raft River Geothermal Exploratory Hole No. 1 (RRGE-1). Completion report
None
Date:
October 1, 1975
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Comparison of solar pond concepts for electrical power generation
The objectives of this study were to: (1) Identify the various solar pond concepts for electric power generation, including but not limited to: (a) nonconvective salt gradient solar pond, (b) ponds with various plastic or other membranes at suitable locations to minimize or eliminate convection, (c) ponds which are totally or partially gelled to reduce or eliminate convection, and (d) shallow convecting ponds; (2) analyze and compare the performance of these various concepts; and (3) estimate the pond cost and overall power plant system cost for each concept assuming the nonconvective gradient salt pond as the base case. The approach includes a preliminary design of several power plant systems based on solar pond concepts, and performance and economic evaluation based on these preliminary designs. (WDM)
Date:
October 1, 1975
Creator:
Drumheller, K.; Duffy, J. B.; Harling, O. K.; Knutsen, C. A.; McKinnon, M. A.; Peterson, P. L. et al.
Object Type:
Report
System:
The UNT Digital Library
Mechanical properties of LX-10-1. Process Development Endeavor No. 105
Two Holston lots of LX-10-1 were evaluated for mechanical properties. The average 21/sup 0/C tensile failure stress-strain values for Lot 711-1 and 711-2 were 2.32 MPa at 0.15% and 2.07 MPa at 0.18%, respectively. The failure stress range for both lots was approximately 0.4 MPa at 74 C to 5.6 MPa at -37C. Several additional pressing cycles were required to obtain a density of 1.865 Mg/m/sup 3/ for Lot 711-1 material. The additional cycles appear to have increased the tensile failure stress of Lot 711-1 slightly.
Date:
October 1, 1977
Creator:
Johnson, H.D.
Object Type:
Report
System:
The UNT Digital Library
Spectroscopy of transition metal species in rare gas matrices. I. Vanadium metal. II. Sulfides. III. Carbonyl complexes. IV. Dinitrogen complexes. V. Homonuclear diatomic compounds
None
Date:
October 1, 1975
Creator:
DeVore, T. C.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Price and availability of western coal in the midwestern electric utility market, 1974--1982
None
Date:
October 1, 1974
Creator:
Asbury, J.G. & Cotello, K.W.
Object Type:
Report
System:
The UNT Digital Library
Design and test report for transportable solar laboratory program
None
Date:
October 1, 1974
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Applications of concrete polymer materials for the rehabilitation of bridge decks
The rapid deterioration of concrete bridge decks as a result of the increased use of deicing salts is one of the most severe problems facing the highway industry today. One possible solution to the problem is the use of concrete polymer materials. The materials of prime interest are polymer-impregnated concrete (PIC) and polymer concrete (PC), both of which have excellent durability and strength properties. Three potential applications: repair of deteriorated bridge decks, polymer impregnation of new bridge deck surfaces, and full impregnation of precast deck panels have been studied in laboratory and field tests and the results have been encouraging. These results and economic considerations are described.
Date:
October 1, 1977
Creator:
Kukacka, L. E.
Object Type:
Article
System:
The UNT Digital Library
Metal vapor excimer laser. Quarterly progress report, May 1, 1977--July 31, 1977. [CdHg vapors]
The CdHg excimer program will attempt to determine the existence of optical gain in a discharge pumped high temperature medium. This first quarterly contract period primarily involves detailed design of the experimental apparatus capable of producing high temperature metal vapor. The report begins with the general considerations which went into designing the experiment and follows with descriptions and schematics of the experiment as presently conceived.
Date:
October 1, 1977
Creator:
Kovacs, M A & Jacob, J H
Object Type:
Report
System:
The UNT Digital Library
Fixed bed gasification for production of industrial fuel gas
This report summarizes the results of technical and economic evaluations of six commercially available, fixed-bed coal gasification processes for the production of industrial fuel gas. The study was performed for DOE and is intended to assist industrial companies in exploring the feasibility of producing gaseous fuels for both retrofit and new industrial plant situations. The report includes a technical analysis of the physical configuration, performance capabilities, and commercial experiments to-date for both air-blown and oxygen-blown fixed bed gasifiers. The product gas from these gasifiers is analyzed economically for three different degrees of cleanliness: (1) hot raw gas, (2) dust-, tar-, and oil-free gas, and (3) dust-, tar-, oil-free and desulfurized gas. The evaluations indicate that low-Btu gases produced from fixed bed gasifiers constitute one of the most logical short-term solutions for helping ease the shortage of natural gas for industrial fuel applications because the technology is well-proven and has been utilized on a commercial scale for several decades both in this country and overseas; time from initiation of design to commercial operation is about two years; the technology is not complicated to construct, operate, or maintain; and a reliable supply of product gas can be generated on-site. The advantages and …
Date:
October 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Data telecommunications at the CSCF
At Brookhaven National Laboratory data telecommunication for remote job entry, interactive time sharing, networking, graphics, and special purpose links became increasingly important--they now rival the more traditional over-the-counter traffic. The BNL Central Scientific Computing Facility (CSCF) responded to this need with a number of developments. The latest and most comprehensive of these is a ''front-end'' communications system built around MODCOMP II computers. To put this project into its proper framework, some historical background is presented describing predecessor systems, the development of specifications, and the factors considered in the decision to turn to MODCOMP. The hardware is based around dual MODCOMP II-233 processors with a specially developed link to the larger CSCF machines, two Control Data 6600 computers and one CDC 7600. The MODCOMP software is based upon an existing system developed by Chrysler Corporation, running under MAXCOM. On the Control Data side Scope 3.4/INTERCOM 4 is used as a basis. The developments and modifications, both hardware and software, necessary for these components to meet Brookhaven's specifications are described. Certain related special-purpose data link applications are described. Among them are a research project in national resource sharing networks using ARPANET, and a connection to the National Weather Service machines in Suitland, …
Date:
October 1, 1977
Creator:
Peskin, A. M.
Object Type:
Article
System:
The UNT Digital Library
NASA/DOE advanced thermionic technology program. Progress report No. 28
Surface studies of thermionic emitters and collectors in the surface characterization chamber are described. Plasma studies including converter theory, experimental plasma analyses, and enhanced mode conversion experiments are discussed. Progress in thermionic converter development, the component hardware program, and the combustion-heated thermionic device program are outlined. (WHK)
Date:
October 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Lead-Glass Wall addition to the Spear Mark I Magnetic Detector
A ''Lead-Glass Wall,'' consisting of 318 lead-glass Cherenkov shower counters and three wire spark chambers, has been added to one octant of the SPEAR Mark I Magnetic Detector. The wall covers a solid angle of approximately 6 percent of 4..pi.. steradians and has been used to identify and measure the energies of electrons and photons produced in electron-positron collisions. The design, calibration, gain-monitoring, and performance of the system are described.
Date:
October 1, 1977
Creator:
Feller, J. M.; Barbaro-Galtieri, A. & Dorfan, J. M.
Object Type:
Article
System:
The UNT Digital Library
Near-isotropic petroleum-coke based graphites for high temperature gas-cooled reactor core components
The standard covers procurement requirements for extruded graphite logs, 15 in. (381 mm) or greater in diameter, manufactured with near-isotropic petroleum cokes and coal-tar pitch binders which are candidates or reference materials for replaceable fuel and reflector blocks for High-Temperature Gas-Cooled Reactors (HTGRs). The requirements are designed to produce the degree of lot-to-lot reproducibility which is required to ensure consistent and predictable properties and irradiation performance for specific graphite grades and to ensure traceability of the graphite logs to production processes and raw materials that affect performance. The standard is intended for use in the procurement of developmental and commercial grades of nuclear graphite which are to be evaluated on Department of Energy (DOE) funded programs for use as core components in HTGRs.
Date:
October 1, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Thermochemical water splitting cycles: oxygen liberating reactions
None
Date:
October 1, 1975
Creator:
Powers, E. J.
Object Type:
Report
System:
The UNT Digital Library
Formal analysis of name accessing in programming languages. [R]
None
Date:
October 1, 1975
Creator:
Smith, C. L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Performance of the short-pulse oscillators for Argus and Shiva
The large Nd:glass laser-fusion systems, such as Argus and Shiva, require short-pulse oscillators that are very reliable and predictable. The requirements go well beyond what can reasonably be expected from a passively mode-locked laser. An actively mode-locked and Q-switched oscillator has now been developed that is extremely reliable and predictable, and satisfies all the requirements for the present Nd:glass laser systems. These systems require pulses that are adjustable from less than 100 ps to more than 1 ns, with less than 5% shot-to-shot variation in pulse energy and pulse width. Single-pulse energy from 100 ..mu..J to 1 mJ is sufficient. In this paper we will describe the principle of operation of this short-pulse oscillator, describe the Argus laser configuration, and the results obtained with this oscillator. We will then indicate further developments for the Shiva oscillator and discuss the performance of this laser.
Date:
October 1, 1977
Creator:
Kuizenga, D.J. & Martin, W.E.
Object Type:
Article
System:
The UNT Digital Library