2-1/2-dimensional numerical solution for the electromagnetic scattering using a hybrid technique (open access)

2-1/2-dimensional numerical solution for the electromagnetic scattering using a hybrid technique

The use of the electromagnetic method for geothermal reservoir exploration and delineation was studied. A number of techniques were developed to provide high quality field data. The remaining problem of interpreting these data in regions of complex geologic structure was overcome by the development of a numerical solution based on the hybrid technique, making use of both the finite element and the integral equation techniques. The major improvement is in the computing speed. (ACR)
Date: March 1, 1983
Creator: Lee, K. H. & Morrison, H. F.
Object Type: Article
System: The UNT Digital Library
9. 1-T iron-free Nb-Ti dipole magnet with pancake windings (open access)

9. 1-T iron-free Nb-Ti dipole magnet with pancake windings

An eight-pancake Nb-Ti dipole magnet, with bent up ends, called D-108B has been built and tested. This magnet is a Nb-Ti version of a Nb/sub 3/Sn magnet designed to produce a 10-tesla dipole field in a 40 mm diameter aperture. The pancack design is used for the heavy 12,000 ampere Nb/sub 3/Sn cable because of the mechanical difficulty in winding such a heavy cable into the conventional nested cylindrical shell configuration with a 2'' inner winding diameter. The Nb-Ti version operates at 1.8K, in He II, has superconducting cable half as thick as the Nb/sub 3/Sn cable, and operates at half the operating current: 6000 A rather than 12,000 A at 10 tesla. Both magnets are approximately one meter long. D-10B was tested from January 26 to February 2, 1983 and reached short-sample performance in both He I and He II after moderate training. The central field at 4.3K is 7.0 (+- 0.1) tesla, and at 1.8K is 9.1 (+- 0.2) tesla. Ramp rate sensitivity and cyclic heating data were also measured.
Date: March 1, 1983
Creator: Gilbert, W.; Caspi, S.; Hassenzahl, W.; Meuser, R.; Peters, C.; Rechen, J. et al.
Object Type: Article
System: The UNT Digital Library
30 MJ superconducting magnetic energy storage stabilizing coil. Final report for construction (open access)

30 MJ superconducting magnetic energy storage stabilizing coil. Final report for construction

This report covers Phase II, Fabrication and Delivery of the 30 MJ Superconducting Magnetic Energy Storage Stabilizing Coil. A history of the manufacturing and assembly phase of the magnet is presented. Major problems and solutions are summarized, and illustrations of the major operations are provided. The Quality Assurance program is described with a listing of all nonconformance reports. Design documentation is provided, including a Design Document Index, monthly progress reports, and a list of papers given on the project. Appendices to the report contain copies of released and revised design calculations, test reports, assembly procedure, and nonconformance reports and engineering dispositions.
Date: March 1, 1983
Creator: unknown
Object Type: Report
System: The UNT Digital Library
120-GeV proton transport for antiproton production in the Fermilab Tevatron I project (open access)

120-GeV proton transport for antiproton production in the Fermilab Tevatron I project

Short bunches of 120 GeV protons will be used for the production of 8 GeV antiprotons. Protons will be extracted vertically from the Main Ring using two high field Lambertson type magnets at location F17. The beam transport is made of three sections: horozintol dispersion cancellation, vertical dispersion cancellation and final focusing. The final focusing section is composed of two quadrupole doublets and allows for variation in ..beta..* values at the target from 1.5 m to 20.0 m.
Date: March 1, 1983
Creator: Colton, E.; Hojvat, C. & Oleksiuk, L.
Object Type: Article
System: The UNT Digital Library
3081//sub E/ processor (open access)

3081//sub E/ processor

Since the introduction of the 168//sub E/, emulating processors have been successful over an amazingly wide range of applications. This paper will describe a second generation processor, the 3081//sub E/. This new processor, which is being developed as a collaboration between SLAC and CERN, goes beyond just fixing the obvious faults of the 168//sub E/. Not only will the 3081//sub E/ have much more memory space, incorporate many more IBM instructions, and have much more memory space, incorporate many more IBM instructions, and have full double precision floating point arithmetic, but it will also have faster execution times and be much simpler to build, debug, and maintain. The simple interface and reasonable cost of the 168//sub E/ will be maintained for the 3081//sub E/.
Date: March 1, 1983
Creator: Kunz, P. F.; Gravina, M.; Oxoby, G.; Trang, Q.; Fucci, A.; Jacobs, D. et al.
Object Type: Article
System: The UNT Digital Library
Activation of sweeping magnets in Tevatron II standardized target piles (open access)

Activation of sweeping magnets in Tevatron II standardized target piles

As designs of the primary targeting schemes for the new Tevatron II slow spill beams progress, it is becoming clear that a standardized form for these schemes is emerging. The general form consists of a production target (usually about 30 cm of beryllium having a diameter from 0.64 to 1.27 cm) followed by from one to three of the new Tevatron II H frame magnets recently developed by D. Eartly. These magnets sweep the unused primary proton beam onto a massive steel beam dump containing a core of material capable of dispersing the energy of the beam along with a hole for transmitting the secondary beam desired at experimental targets. Typical primary proton intensities at such production targets are planned to be in the range of 3 x 10/sup 12/ to 5 x 10/sup 12/ protons per spill. If one assumes such operation during a run of 4000 hours per year, 60 spills per hour, the integrated beam is seen to be approximately 1 x 10/sup 18/ per year targetted at a rate of 7/0 x 10/sup 10/ protons/sec during the run. It is clear, from experience, that such beam intensities require that the water used to cool the beam …
Date: March 1, 1983
Creator: Cossairt, J.D.
Object Type: Report
System: The UNT Digital Library
Advanced Light Source (open access)

Advanced Light Source

The Advanced Light Source (ALS) is a new synchrotron radiation source which has been proposed by Lawrence Berkeley Laboratory. The ALS will be a key component in a major new research facility, the National Center for Advanced Materials. The ALS will consist of an electron linear accelerator, a booster synchrotron, a 1.3-GeV electron storage ring, and a number of photon beam lines. Most or all photon beam lines will originate from wiggler and undulator magnets placed in the 12 long straight sections of the ALS. A very low electron beam emittance will provide photon beams of unsurpassed spectral brilliance from specially-designed undulators, and a high radiofrequency will produce very short pulse lengths.
Date: March 1, 1983
Creator: Sah, R.C.
Object Type: Article
System: The UNT Digital Library
Alternatives for management of wastes generated by the formerly utilized sites remedial action program and supplement (open access)

Alternatives for management of wastes generated by the formerly utilized sites remedial action program and supplement

Alternatives for disposal or stabilization of the wastes generated by the US Department of Energy's Formerly Utilized Sites Remedial Action Program (FUSRAP) are identified and compared, with emphasis on the long-term aspects. These wastes consist of soil material and rubble containing trace amounts of radionuclides. A detailed pathway analysis for the dose to the maximally exposed individual is carried out using an adaptation of the natural analogue method. Comparisons of the different alternatives, based on the results of the pathway analysis and qualitative cost considerations, indicate that, if the hazard is such that the wastes must be removed and disposed of rather than stabilized in place, disposal by immediate dispersal is preferable to containment, and containment followed by slow planned dispersal is preferable to containment without dispersal. The Supplement presents refinements of work that was reported at the 1982 International Decommissioning Symposium. The new material consists of revisions of the estimates of the predicted potential dose to the maximally exposed individual and a more detailed comparative assessment of the radiological impacts of alternatives for management of wastes generated by the US Department of Energy's Formerly Utilized Sites Remedial Action Program (FUSRAP).
Date: March 1, 1983
Creator: Gilbert, T. L.; Peterson, J. M.; Vocke, R. W. & Alexander, J. K.
Object Type: Report
System: The UNT Digital Library
Analysis of the effects of integrating wind turbines into a conventional utility: a case study. Revised final report (open access)

Analysis of the effects of integrating wind turbines into a conventional utility: a case study. Revised final report

The impact on a utility incorporating wind turbine generation due to wind speed sampling frequency, wind turbine performance model, and wind speed forecasting accuracy is examined. The utility analyzed in this study was the Los Angeles Department of Water and Power, and the wind turbine assumed was the MOD-2. The sensitivity of the economic value of wind turbine generation to wind speed sampling frequency and wind turbine modeling technique is examined as well as the impact of wind forecasting accuracy on utility operation and production costs. Wind speed data from San Gorgonio Pass, California during 1979 are used to estimate wind turbine performance using four different simulation methods. (LEW)
Date: March 1, 1983
Creator: Goldenblatt, M. K.; Wegley, H. L. & Miller, A. H.
Object Type: Report
System: The UNT Digital Library
Analysis of the Three Mile Island Unit 2 hydrogen burn. Volume 4 (open access)

Analysis of the Three Mile Island Unit 2 hydrogen burn. Volume 4

As a basis for the analysis of the hydrogen burn which occurred in the Three Mile Island Containment on March 28, 1979, a study of recorded temperatures and pressures was made. Long-term temperature information was obtained from the multipoint temperature recorder which shows 12 containment atmosphere temperatures plotted every 6 min. The containment atmosphere pressure recorder provided excellent long- and short-term pressure information. Short-term information was obtained from the multiplex record of 24 channels of data, recorded every 3 sec, and the alarm printer record which shows status change events and prints out temperatures, pressures, and the time of the events. The timing of these four data recording systems was correlated and pertinent data were tabulated, analyzed, and plotted to show average containment temperature and pressure versus time. Photographs and videotapes of the containment entries provided qualitative burn information.
Date: March 1, 1983
Creator: Henrie, J.O. & Postma, A.K.
Object Type: Report
System: The UNT Digital Library
Annotated bibliography covering generation and use of evaluated cross section uncertainty files (open access)

Annotated bibliography covering generation and use of evaluated cross section uncertainty files

Literature references related to definition, generation, and use of evaluated cross section uncertainty (variance-covariance) files are listed with comments intended primarily to guide the reader toward materials of immediate interest. Papers are also cited that cover covariance information for individual experiments and that relate to production and use of multigroup covariance matrices. Titles are divided among several major categories.
Date: March 1, 1983
Creator: Peelle, R. W. & Burrows, T. W.
Object Type: Report
System: The UNT Digital Library
Annual environmental monitoring report, January-December 1982 (open access)

Annual environmental monitoring report, January-December 1982

Environmental monitoring results continue to demonstrate that environmental radiological impact due to SLAC operation is not distinguishable from natural environmental sources. During 1982, 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 operation began in 1966. 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: March 1, 1983
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Application of chemical modification and spin-labeling techniques to the study of energy conversion by bacteriorhodopsin (open access)

Application of chemical modification and spin-labeling techniques to the study of energy conversion by bacteriorhodopsin

Light generates a pH gradient and an electrical potential across the purple membrane of Halobacterium halobium. We are investigating the time-resolved changes in protonation of the side chains of specific amino-acid residues and the correlation of these changes with photon absorption and the ensuing photo-reaction cycle. We seek to determine the precise molecular description of the photocycle and of the time dependent steps in the uptake, translocation, and release of protons by the retinal proton catalyst in this membrane, bacteriorhodopsin (BR). 14 references, 3 figures, 1 table.
Date: March 1, 1983
Creator: Packer, L.; Quintanilha, A. T. & Mehlhorn, R. J.
Object Type: Article
System: The UNT Digital Library
Application of local area networks to accelerator control systems at the Stanford Linear Accelerator (open access)

Application of local area networks to accelerator control systems at the Stanford Linear Accelerator

The history and current status of SLAC's SDLC networks for distributed accelerator control systems are discussed. These local area networks have been used for instrumentation and control of the linear accelerator. Network topologies, protocols, physical links, and logical interconnections are discussed for specific applications in distributed data acquisition and control system, computer networks and accelerator operations.
Date: March 1, 1983
Creator: Fox, J.D.; Linstadt, E. & Melen, R.
Object Type: Article
System: The UNT Digital Library
Array of 1- to 2-GHz electrodes for stochastic cooling (open access)

Array of 1- to 2-GHz electrodes for stochastic cooling

Described is an array of directional-coupler loop pairs that are to be used as either pickup or kicker electrodes for the frequency range of 1 to 2 GHz. Each coupler pair is a lambda/4 long parallel-plane transmission line that is arranged to be flush with the upper and lower surfaces of a rectangular beam pipe. As pickups, the coupler pairs are used in arrays and are operated at 80 degrees Kelvin for improving the signal-to-noise ratio. The loop output power is added in stripline combiner networks before being fed to a low-noise preamplifier. When the couplers are used as kickers, the combining network serves to split power and distribute it uniformly to each electrode.
Date: March 1, 1983
Creator: Voelker, F.; Henderson, T. & Johnson, J.
Object Type: Article
System: The UNT Digital Library
Assessment of ether and alcohol fuels from coal. Volume 2. Technical report (open access)

Assessment of ether and alcohol fuels from coal. Volume 2. Technical report

A unique route for the indirect liquefaction of coal to produce transportation fuel has been evaluated. The resultant fuel includes alkyl tertiary alkyl ethers and higher alcohols, all in the gasoline boiling range. When blended into gasoline, the ether fuel provides several advantages over the lower alcohols: (1) lower chemical oxygen content, (2) less-severe water-separation problems, and (3) reduced front-end volatility effects. The ether fuel also has high-octane quality. Further, it can be utilized as a gasoline substitute in all proportions. Production of ether fuel combines several steps, all of which are or have been practiced on an industrial scale: (1) coal gasification, (2) gas cleanup and shift to desired H/sub 2/:CO ratio, (3) conversion of synthesis gas to isobutanol, methanol, and higher alcohols, (4) separation of alcohols, (5) chemical dehydration of isobutanol to isobutylene, and (6) etherification of isobutylene with methanol. A pilot-plant investigation of the isobutanol synthesis step was performed. Estimates of ether-fuel manufacturing costs indicate this process route is significantly more costly than synthesis of methanol. However, the fuel performance features provide incentive for developing the necessary process and catalyst improvements. Co-production of higher-molecular-weight co-solvent alcohols represents a less-drastic form of methanol modification to achieve improvement in …
Date: March 1, 1983
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Assessments of tritium-breeding requirements and breeding potential for the STARFIRE/DEMO design (open access)

Assessments of tritium-breeding requirements and breeding potential for the STARFIRE/DEMO design

This paper presents assessments of tritium-breeding requirements and breeding potential for the STARFIRE/DEMO design. The assessment of breeding requirement is described based on two design considerations; i.e.: (1) tritium inventory and doubling requirement; and (2) computational uncertainties associated with the breeding calculation. The lithium-containing materials considered include: solid Li/sub 2/O and LiAlO/sub 2/ and liquid lithium and 17 Li-83Pb.
Date: March 1, 1983
Creator: Jung, J. & Abdou, M.
Object Type: Article
System: The UNT Digital Library
Atlantic coastal experiment 5: R/V advance II cruise (MESEX I) 27 April--2 May 1979, data report (open access)

Atlantic coastal experiment 5: R/V advance II cruise (MESEX I) 27 April--2 May 1979, data report

68 hydrographic stations were arranged as boundary transects, and a proximate calibration matrix, to an array of current meters and fluorometers moored within the coastal boundary layer near southern Long Island. Assessments were made of water-mass characterization, nutrient distribution, chlorophyll variability and phytoplankton composition. Supplemental thermal structure was obtained from expendable bathythermographs.
Date: March 1, 1983
Creator: von Bock, K. (ed.)
Object Type: Report
System: The UNT Digital Library
Atlantic Coastal Experiment III: R/V KNORR cruise 68, 4-30 August 1977; FRV ALBATROSS IV cruise 77-07, 1-4, 16-31 August 1977. Data report, volume 1 (open access)

Atlantic Coastal Experiment III: R/V KNORR cruise 68, 4-30 August 1977; FRV ALBATROSS IV cruise 77-07, 1-4, 16-31 August 1977. Data report, volume 1

Data are reported from KNORR cruise 68, the major investigation of the third Atlantic Coastal Experiment (ACE), conducted during a period of pro-nounced water-column stratification. One hundred fifty-five stations, including 6 time-series sitings, were occupied within the shelf and shelf- break regimes of New York Bight. Measurements were made to assess water-mass characterization, nutrient cycling, carbon/nitrogen assimilation, bio-mass distribution and diel dynamics and benthic/water-column interfacial exchange. Data are also included from the cruise of ALBATROSS IV carried out contemporaneously with the KNORR investigations, in an area ranging from Nantucket Shoals to the upper reaches of the Gulf of Maine. 20 hydrographic stations were used to augment underway mapping in order to elucidate surface-layer chlorophyll and nutrient distributions occurring at an impor-tant boundary of the New York Bight.
Date: March 1, 1983
Creator: Judkins, D.C. & von Bock, K.
Object Type: Report
System: The UNT Digital Library
Atlantic Coastal Experiment III: R/V KNORR cruise 68, 4-30 August 1977; FRV ALBATROSS IV cruise 77-07, 1-4, 16-31 August 1977. Data Report, volume 2. (open access)

Atlantic Coastal Experiment III: R/V KNORR cruise 68, 4-30 August 1977; FRV ALBATROSS IV cruise 77-07, 1-4, 16-31 August 1977. Data Report, volume 2.

Data are reported from KNORR cruise 88, the major investigation of the third Atlantic Coastal Experiment (ACE), conducted during a period of pronounced water-column stratification.
Date: March 1, 1983
Creator: Judkins, D.C. & von Bock, K.
Object Type: Report
System: The UNT Digital Library
Automatic tuning of the LBL SuperHILAC third-injector transport line (open access)

Automatic tuning of the LBL SuperHILAC third-injector transport line

Testing of a new automatic tuning procedure in an LBL SuperHILAC beam transport line has been conducted with the third injector microcomputer control system. This technique is an advance over the sequential station-by-station automatic tuning method developed for the Bevalac transfer line. The computer now performs steering/focusing adjustments simultaneously on a number of quadrupole and dipole magnets comprising multiple-station sections of the injection line. New magnet currents are computed from equations governing beam optics in a real-time simulation of the beam line. The key to this emittance utilizing the same control magnets and beam profile monitors used for manual tuning of the line. This emittance calculation requires high resolution beam profile measurements using multi-wire profile monitors recently installed in the third injector line.
Date: March 1, 1983
Creator: Pines, H.
Object Type: Article
System: The UNT Digital Library
Beam dynamics and vane geometry in the LBL Heavy-Ion RFQ (open access)

Beam dynamics and vane geometry in the LBL Heavy-Ion RFQ

The Heavy Ion RFQ accelerator, presently undergoing acceptance tests, extends the application of the RFQ principle to charge-to-mass ratios considerably less than one. In this design the aperture is very small compared to the operating wavelength, causing a large capacitive loading of the structure and also in a high sensitivity of the field configuration of the structure to vane alignment. A structure has been derived that eases the vane alignment procedure and reduces the sensitivity to vane misalignment. The selection of the vane cross section facilitates machining and evantual frequency trimming.
Date: March 1, 1983
Creator: Staples, J.
Object Type: Article
System: The UNT Digital Library
Beam Line VI REC-steel hybrid wiggler for SSRL (open access)

Beam Line VI REC-steel hybrid wiggler for SSRL

A wiggler magnet with 27 periods, each 7 cm long which reaches 1.21 T at a 1.2 cm gap and 1.64 T at 0.8 cm gap has been designed and is in fabrication. Installation in SPEAR is scheduled for mid 1983. This new wiggler will be the radiation source for a new high intensity synchrotron radiation beam line at SSRL. The magnet utilizes rare-earth cobalt (REC) material and steel in a hybrid configuration to achieve simultaneously a high magnetic field with a short period. The magnet is external to a thin walled variable gap stainless steel vacuum chamber which is opened to provide beam aperture of 1.8 cm gap at injection and then closed to a smaller aperture (< 1.0 cm). Five independent drive systems are provided to adjust the magnet and chamber gaps and alignment. Magnetic design, construction details and magnetic measurements are presented.
Date: March 1, 1983
Creator: Hoyer, E.; Chan, T.; Chin, J. W. G.; Halbach, K.; Kim, K. J.; Winick, H. et al.
Object Type: Article
System: The UNT Digital Library
Beowawe geothermal-resource assessment. Final report. Shallow-hole temperature survey geophysics and deep test hole Collins 76-17 (open access)

Beowawe geothermal-resource assessment. Final report. Shallow-hole temperature survey geophysics and deep test hole Collins 76-17

Geothermal resource investigation field efforts in the Beowawe Geysers Area, Eureka County, Nevada are described. The objectives included acquisition of geotechnical data for understanding the nature and extent of the geothermal resource boundaries south of the known resource area. Fourteen shallow (<500 feet) temperature-gradient holes plus geophysics were used to select the site for a deep exploratory well, the Collins 76-17, which was completed to a total depth of 9005 feet. Maximum downhole recorded temperature was 311/sup 0/F, but no flow could be induced.
Date: March 1, 1983
Creator: Jones, N.O.
Object Type: Report
System: The UNT Digital Library