8MVA modulator/regulator for neutral beams (open access)

8MVA modulator/regulator for neutral beams

This paper describes very generally the modulator/regulator (Mod/Reg) being built for Transrex by Systems, Science and Software for use on the neutral beam power supplies that Transrex is building for General Atomic Company to power the neutral beam heating systems that will be used on the Doublet III fusion device. The Mod/Reg is required to provide an 80 kV, 100 A pulse for a second every 90 sec. The voltage is to be regulated to 3%, and in case of fault the pulse must be interrupted within 10 ..mu..sec. An additional requirement was that the total system have very low capacity such that the total energy stored would be less than 15 joules. This is a restriction imposed by the source designer to prevent destroying the source in case of an arc within the source.
Date: May 1980
Creator: Remsen, D. B., Jr. & Overett, Trevor H.
Object Type: Article
System: The UNT Digital Library
A15 multifilamentary superconductors by the infiltration process (open access)

A15 multifilamentary superconductors by the infiltration process

The inherent brittleness of the A15 compounds, and the requirement for a filamentary morphology, led to a heavy reliance on a powder approach for the preparation of superconducting tapes and wires. The quench-age technique, a non-powder process, was employed for the niobium-aluminum system, following the special features of the equilibrium phase diagram. The powder approach proved particularly effective for binaries, such as Nb-Sn, and for the ternaries Nb(Al,Ge) and Nb(Al,Si). Two variations of the powder process were assessed. One involved the use of precompounded powder of the desired stoichiometry but required simultaneous application of heat and pressure. The second variation was the infiltration process. This process involves the preparation of a ductile niobium matrix containing a controlled network of interconnected pores which are subsequently infiltrated with liquid metals (Sn) or low melting-point eutectics (e.g., Al-Ge, Al-Si). The composite is then subjected to a thermomechanical treatment to form a multiply connected array of A15 filaments in a niobium matrix. Multifilamentary conductors, based on Nb/sub 3/Sn, Nb/sub 3/Al, Nb/sub 3/ (Al,Ge) and Nb/sub 3/ (Al,Si), were readily obtained. Nb/sub 3/Sn conductors made by the infiltration process exhibit a critical temperature (Tc) of 18.1 K and a critical current carrying capacity (I/sub c/) …
Date: May 1, 1980
Creator: Pickus, M.R.; Holthuis, J.T. & Rosen, M.
Object Type: Article
System: The UNT Digital Library
Adaptive Intrusion Data System (AIDS) (open access)

Adaptive Intrusion Data System (AIDS)

The adaptive intrusion data system (AIDS) was developed to collect data from intrusion alarm sensors as part of an evaluation system to improve sensor performance. AIDS is a unique data system which uses computer controlled data systems, video cameras and recorders, analog-to-digital conversion, environmental sensors, and digital recorders to collect sensor data. The data can be viewed either manually or with a special computerized data-reduction system which adds new data to a data base stored on a magnetic disc recorder. This report provides a synoptic account of the AIDS as it presently exists. Modifications to the purchased subsystems are described, and references are made to publications which describe the Sandia-designed subsystems.
Date: May 1, 1980
Creator: Corlis, N. E.
Object Type: Report
System: The UNT Digital Library
Adiabatic Hamiltonian Deformation, Linear Response Theory, and Nonequilibrium Molecular Dynamics (open access)

Adiabatic Hamiltonian Deformation, Linear Response Theory, and Nonequilibrium Molecular Dynamics

Although Hamiltonians of various kinds have previously been used to derive Green-Kubo relations for the transport coefficients, the particular choice described is uniquely related to thermodynamics. This nonequilibrium Hamiltonian formulation of fluid flow provides pedagogically simple routes to nonequilibrium fluxes and distribution functions, to theoretical understanding of long-time effects, and to new numerical methods for simulating systems far from equilibrium. The same methods are now being applied to solid-phase problems. At the relatively high frequencies used in the viscous fluid calculations described, solids typically behave elastically. Lower frequencies lead to the formation of dislocations and other defects, making it possible to study plastic flow. A property of the nonequilibrium equations of motion which might be profitably explored is their effective irreversibility. Because only a few particles are necessary to generate irreversible behavior, simulations using adiabatic deformations of the kind described here could perhaps elucidate the instability in the equations of motion responsible for irreversibility.
Date: May 28, 1980
Creator: Hoover, W. G.
Object Type: Article
System: The UNT Digital Library
Aerial gamma Ray and Magnetic Survey, Montrose Detail Area 1, Colorado. Final Report. (open access)

Aerial gamma Ray and Magnetic Survey, Montrose Detail Area 1, Colorado. Final Report.

None
Date: May 31, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Aerial gamma Ray and Magnetic Survey, Montrose Detail Area 2, Colorado. Final Report. (open access)

Aerial gamma Ray and Magnetic Survey, Montrose Detail Area 2, Colorado. Final Report.

None
Date: May 31, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Aerial radiometric and magnetic survey: Hobbs National Topographic Map, New Mexico/Texas. Final report (open access)

Aerial radiometric and magnetic survey: Hobbs National Topographic Map, New Mexico/Texas. Final report

The results of analyses of the airborne gamma radiation and total magnetic field survey flown for the region identified as the Hobbs National Topographic Map NI13-12 are presented in this report. The airborne data gathered are reduced by ground computer facilities to yield profile plots of the basic uranium, thorium and potassium equivalent gamma radiation intensities, ratios of these intensities, aircraft altitude above the earth's surface, total gamma ray and earth's magnetic field intensity, correlated as a function of geologic units. The distribution of data within each geologic unit, for all surveyed map lines and tie lines, has been calculated and is included. Two sets of profiled data for each line are included, with one set displaying the above-cited data. The second set includes only flight line magnetic field, temperature, pressure, altitude data plus magnetic field data as measured at a base station. A general description of the area, including descriptions of the various geologic units and the corresponding airborne data, is included also.
Date: May 1, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Aerial radiometric and magnetic survey: Perryton National Topographic Map, Texas/Oklahoma/Kansas. Final report (open access)

Aerial radiometric and magnetic survey: Perryton National Topographic Map, Texas/Oklahoma/Kansas. Final report

The results of analyses of the airborne gamma radiation and total magnetic field survey flown for the region identified as the Perryton National Topographic Map NJ14-10 are presented. The airborne data gathered are reduced by ground computer facilities to yield profile plots of the basic uranium, thorium and potassium equivalent gamma radiation intensities, ratios of these intensities, aircraft altitude above the earth's surface, total gamma ray and earth's magnetic field intensity, correlated as a function of geologic units. The distribution of data within each geologic unit, for all surveyed map lines and tie lines, has been calculated and is included. Two sets of profiled data for each line are included, with one set displaying the above-cited data. The second set includes only flight line magnetic field, temperature, pressure, altitude data plus magnetic field data as measured at a base station. A general description of the area, including descriptions of the various geologic units and the corresponding airborne data, is included also.
Date: May 1, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Aerial radiometric and magnetic survey, San Angelo National Topographic Map: Texas, West Texas Project. Final report (open access)

Aerial radiometric and magnetic survey, San Angelo National Topographic Map: Texas, West Texas Project. Final report

The results of analyses of the airborne gamma radiation and total magnetic field survey flown for the region identified as the San Angelo National Topographic Map NH14-1 are presented. The airborne data gathered are reduced by ground computer facilities to yield profile plots of the basic uranium, thorium, and potassium equivalent gamma radiation intensities, ratios of these intensities, aircraft altitude above the earth's surface, total gamma ray and earth's magnetic field intensity, correlated as a function of geologic units. The distribution of data within each geologic unit, for all surveyed map lines and tie lines, has been calculated and is included. Two sets of profiled data for each line are included, with one set displaying the above-cited data. The second set includes only flight line magnetic field, temperature, pressure, altitude data plus magnetic field data as measured at a base station. A general description of the area, including descriptions of the various geologic units and the corresponding airborne data, is included.
Date: May 1, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Aerial radiometric and magnetic survey: San Antonio National Topographic Map, Texas. Final report (open access)

Aerial radiometric and magnetic survey: San Antonio National Topographic Map, Texas. Final report

The results of analyses of the airborne gamma radiation and total magnetic field survey flown for the region identified as the San Antonio National Topographic Map NH14-8 are presented. The airborne data gathered are reduced by ground computer facilities to yield profile plots of the basic uranium, thorium, and potassium equivalent gamma radiation intensities, ratios of these intensities, aircraft altitude above the earth's surface, total gamma ray and earth's magnetic field intensity, correlated as a function of geologic units. The distribution of data within each geologic unit, for all surveyed map lines and tie lines, has been calculated and is included. Two sets of profiled data for each line are included, with one set displaying the above-cited data. The second set includes only flight line magnetic field, temperature, pressure, altitude data plus magnetic field data as measured at a base station. A general description of the area, including descriptions of the various geologic units and the corresponding airborne data, is included also.
Date: May 1, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Aerosol Analysis for the Regional Air Pollution Study. Final Report (open access)

Aerosol Analysis for the Regional Air Pollution Study. Final Report

The design and operation of an aerosol sampling and analysis program implemented during the 1975 to 1977 St. Louis Regional Air Pollution Study is described. A network of ten samplers were operated at selected sites in the St. Louis area and the total mass and elemental composition of the collected particulates were determined. Sampling periods of 2 to 24 hours were employed. The samplers were capable of collecting aerosol particles in two distinct size ranges corresponding to fine (< 2.4 ..mu..m diameter) and coarse (> 2.4 ..mu..m diameter) particles. This unique feature allowed the separation of the particulate samples into two distinct fractions with differing chemical origins and health effects. The analysis methods were also newly developed for use in the St. Louis RAPS study. Total particulate mass was measured by a beta-particle attenuation method in which a precision of +- 5 ..mu..m/cm/sup 2/ could be obtained in a one minute measurement time. Elemental compositions of the samples were determined using an energy dispersive x-ray fluorescence method in which detectable limits of 5 ng/cm/sup 2/ or less were routinely achieved for elements ranging in atomic number from Al to Pb. The advantages of these analytical methods over more conventional techniques …
Date: May 1980
Creator: Jaklevic, J. M.; Gatti, R. C.; Goulding, F. S.; Loo, B. W. & Thompson, A. C.
Object Type: Report
System: The UNT Digital Library
Aging study of Li(Si)/FeS/sub 2/ thermally activated batteries. [Results of accelerated aging at 130/sup 0/C] (open access)

Aging study of Li(Si)/FeS/sub 2/ thermally activated batteries. [Results of accelerated aging at 130/sup 0/C]

A technique for accelerating the aging process of thermally activated batteries that use iron disulfide was developed. In this approach, storage at 130/sup 0/C for one week was assumed equivalent to a shelf life of five years. Some of the batteries stored at 130/sup 0/C were discharged to test for functionality changes, and others were disassembled and carefully analyzed for evidence of deleterious reactions. Some functionality anomalies were observed. The only deleterious reaction observed was that of Li(Si) reacting with water vapor. 3 figures, 6 tables.
Date: May 1, 1980
Creator: Searcy, J. Q. & Neiswander, P. A.
Object Type: Report
System: The UNT Digital Library
AGS 20th anniversary celebration (open access)

AGS 20th anniversary celebration

On May 22, 1980, a symposium was held at Brookhaven to celebrate the 20th birthday of the AGS, to recall its beginnings, and to review major discoveries that have been made with its beams. The talks at the symposium are recorded in this volume.
Date: May 22, 1980
Creator: Baggett, N.V. (ed.)
Object Type: Report
System: The UNT Digital Library
Analysis of barium hydroxide and calcium hydroxide slurry carbonation reactors (open access)

Analysis of barium hydroxide and calcium hydroxide slurry carbonation reactors

The removal of CO/sub 2/ from air was investigated by using a continuous-agitated-slurry carbonation reactor containing either barium hydroxide (Ba(OH)/sub 2/) or calcium hydroxide (Ca(OH)/sub 2/). Such a process would be applied to scrub /sup 14/CO/sub 2/ from stack gases at nuclear-fuel reprocessing plants. Decontamination factors were characterized for reactor conditions which could alter hydrodynamic behavior. An attempt was made to characterize reactor performance with models assuming both plug flow and various degrees of backmixing in the gas phase. The Ba(OH)/sub 2/ slurry enabled increased conversion, but apparently the process was controlled under some conditions by phenomena differing from those observed for carbonation by Ca(OH)/sub 2/. Overall reaction mechanisms are postulated.
Date: May 1, 1980
Creator: Patch, K.D.; Hart, R.P. & Schumacher, W.A.
Object Type: Report
System: The UNT Digital Library
Analysis of injection testing of geothermal reservoirs (open access)

Analysis of injection testing of geothermal reservoirs

By introducing a similarity variable r/..sqrt..t a quasi-analytical method can be used to calculate the flow induced by the injection of cold water into a hot water or boiling geothermal reservoir. The results obtained are compared with those produced by the reservoir simulator SHAFT79 and show good agreement.
Date: May 1, 1980
Creator: O'Sullivan, M. & Pruess, K.
Object Type: Article
System: The UNT Digital Library
Analysis of trapped gas in 1E34 detonators by gas chromatography (open access)

Analysis of trapped gas in 1E34 detonators by gas chromatography

A method was developed to extract and then analyze gas trapped in thermally aged 1E34 detonators. This gas was extracted into an evacuated volume and injected into a gas chromatograph for separation and quantitative analysis. To effect this gas extraction, a device was designed for puncturing the detonator cup and capturing the effused gas. Limited testing of five detonators in this device shows amounts of gas ranging from about 0.5 X 10 {sup -7} to 12 X 10 {sup - 7} moles.
Date: May 14, 1980
Creator: Warner, David K.; Back, Paul S. & Barnhart, Brady V.
Object Type: Report
System: The UNT Digital Library
Analytical Chemistry Division annual progress report for period ending December 31, 1979 (open access)

Analytical Chemistry Division annual progress report for period ending December 31, 1979

The progress is reported in the following sections: analytical methodology, mass and emission spectrometry, technical support, bio-organic analysis, nuclear and radiochemical analysis, and quality assurance. (DLC)
Date: May 1, 1980
Creator: Shults, W. D. & Lyon, W. S. (ed.)
Object Type: Report
System: The UNT Digital Library
Annual environmental monitoring report, January-December 1979 (open access)

Annual environmental monitoring report, January-December 1979

Environmental monitoring results continue to demonstrate that, except for penetrating radiation, environmental radiological impact due to SLAC operation is not distinguishable from natural environmental sources. During 1979, the maximum measured neutron dose near the site boundary was not distinguishable from the cosmic ray neutron background. There have been no measurable increases in radioactivity in ground water attributable to SLAC operations since 1966. Because of major new construction, well water samples were not collected and analyzed during 1979. Construction activities have also temporarily placed our sampling stations for the sanitary and storm sewers out of service. They will be reestablished as soon as construction activities permit (mid 1980). Airborne radioactivity released from SLAC continues to make only a negligible environmental impact, and results in a site boundary annual dose of less than 0.3 mrem; this represents less than 0.3% of the annual dose from the natural radiation environment, and about 0.06% of the technical standard.
Date: May 1, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Annual Report, FY 1979 Spent Fuel and Fuel Pool Component Integrity. (open access)

Annual Report, FY 1979 Spent Fuel and Fuel Pool Component Integrity.

International meetings under the BEFAST program and under INFCE Working Group No. 6 during 1978 and 1979 continue to indicate that no cases of fuel cladding degradation have developed on pool-stored fuel from water reactors. A section from a spent fuel rack stand, exposed for 1.5 y in the Yankee Rowe (PWR) pool had 0.001- to 0.003-in.-deep (25- to 75-..mu..m) intergranular corrosion in weld heat-affected zones but no evidence of stress corrosion cracking. A section of a 304 stainless steel spent fuel storage rack exposed 6.67 y in the Point Beach reactor (PWR) spent fuel pool showed no significant corrosion. A section of 304 stainless steel 8-in.-dia pipe from the Three Mile Island No. 1 (PWR) spent fuel pool heat exchanger plumbing developed a through-wall crack. The crack was intergranular, initiating from the inside surface in a weld heat-affected zone. The zone where the crack occurred was severely sensitized during field welding. The Kraftwerk Union (Erlangen, GFR) disassembled a stainless-steel fuel-handling machine that operated for 12 y in a PWR (boric acid) spent fuel pool. There was no evidence of deterioration, and the fuel-handling machine was reassembled for further use. A spent fuel pool at a Swedish PWR was decontaminated. …
Date: May 1, 1980
Creator: Johnson, A. B., (Jr.); Bailey, W. J.; Schreiber, R. E. & Kustas, F. M.
Object Type: Report
System: The UNT Digital Library
Annual report of the Wind Characteristics Program Element, July 1978-September 1979 (open access)

Annual report of the Wind Characteristics Program Element, July 1978-September 1979

As a service element within the Federal Wind Energy Program, the Wind Characteristics Program Element (WCPE) is established to provide the appropriate wind characteristics information to those involved in: the design and evaluation of wind energy conversion systems (WECS); energy program planning; selecting sites for WECS installation; and the operation of WECS. To effectively produce the information needed in these four categories, the WCPE, for which the Pacific Northwest Laboratory (PNL) has the responsibility for management and technical assistance, has been divided into four technical program areas. During this reporting period PNL was also assigned the management responsibility for the data collection at the US Department of Energy's (DOE's) candidate sites, as well as the task of providing technical assistance to DOE evaluation and site selection panels for new candidate sites.
Date: May 1, 1980
Creator: Wendell, L. L.; Barchet, W. R.; Connell, J. R.; Miller, A. H.; Pennell, W. T. & Renne, D. S.
Object Type: Report
System: The UNT Digital Library
Annular air space effects on nuclear waste canister temperatures in a deep geologic waste repository (open access)

Annular air space effects on nuclear waste canister temperatures in a deep geologic waste repository

Air spaces in a deep geologic repository for nuclear high level waste will have an important effect on the long-term performance of the waste package. The important temperature effects of an annular air gap surrounding a high level waste canister are determined through 3-D numerical modeling. Air gap properties and parameters specifically analyzed and presented are the air gap size, surfaces emissivity, presence of a sleeve, and initial thermal power generation rate; particular emphasis was placed on determining the effect of these variables have on the canister surface temperature. Finally a discussion based on modeling results is presented which specifically relates the results to NRC regulatory considerations.
Date: May 13, 1980
Creator: Lowry, W.E.; Cheung, H. & Davis, B.W.
Object Type: Report
System: The UNT Digital Library
Application of ALARA principles to shipment of spent nuclear fuel (open access)

Application of ALARA principles to shipment of spent nuclear fuel

The public exposure from spent fuel shipment is very low. In view of this low exposure and the perfect safety record for spent fuel shipment, existing systems can be considered satisfactory. On the other hand, occupational exposure reduction merits consideration and technology improvement to decrease dose should concentrate on this exposure. Practices that affect the age of spent fuel in shipment and the number of times the fuel must be shipped prior to disposal have the largest impact. A policy to encourage a 5-year spent fuel cooling period prior to shipment coupled with appropriate cask redesign to accommodate larger loads would be consistent with ALARA and economic principles. And finally, bypassing high population density areas will not in general reduce shipment dose.
Date: May 1, 1980
Creator: Greenborg, J.; Brackenbush, L. W.; Murphy, D. W. & Lewis, J. R.
Object Type: Report
System: The UNT Digital Library
Application of digital image analysis techniques to the Geyser's data and topography (open access)

Application of digital image analysis techniques to the Geyser's data and topography

This paper describes the results of digital image analysis and techniques applied to acoustic sounder data and topographic relief in the Geyser's region. The two dimensional fast Fourier transform (2DFFT) represents the spacial variability of a photographic image. The spacial variability of topography in complex terrain can be represented in this way and insight into degree of complexity and dominating spacial wavelengths can be gained. This was performed for a 16 km square digitized topographic map of the Geyser's region with 63.5 m resolution. It was also of interest to compare facsimile recordings of acoustic sounder data to optical turbulence measurements.
Date: May 5, 1980
Creator: Porch, W.M.
Object Type: Article
System: The UNT Digital Library
Application of nondestructive gamma-ray and neutron techniques for the safeguarding of irradiated fuel materials (open access)

Application of nondestructive gamma-ray and neutron techniques for the safeguarding of irradiated fuel materials

Nondestructive gamma-ray and neutron techniques were used to characterize the irradiation exposures of irradiated fuel assemblies. Techniques for the rapid measurement of the axial-activity profiles of fuel assemblies have been developed using ion chambers and Be(..gamma..,n) detectors. Detailed measurements using high-resolution gamma-ray spectrometry and passive neutron techniques were correlated with operator-declared values of cooling times and burnup.
Date: May 1, 1980
Creator: Phillips, J. R.; Halbig, J. K.; Lee, D. M.; Beach, S. E.; Bement, T. R.; Dermendjiev, E. et al.
Object Type: Report
System: The UNT Digital Library