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650 mm long liquid hydrogen target for use in a high intensity electron beam
This paper describes a 650 mm long liquid hydrogen targetr constructed for use in the high intensity electron beam at the Stanford Linear Accelerator Center (SLAC). The main design problem was to construct a target that would permit the heat deposited by the electron beam to be removed rapidly without boiling the hydrogen so as to maintain constant target density for optimum data taking. Design requirements, cosntruction details and operating experience are discussed.
Date:
February 1, 1984
Creator:
Mark, J.W.
Object Type:
Article
System:
The UNT Digital Library
[1st & 2nd S.B. Street House]
Photograph of the 1st & 2nd S.B. Street House (located at 800-804 3rd St) in Graham, Texas.
Date:
February 1, 1984
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[1st S.B Street House]
Photograph of the 1st S.B Street House (located at 804 3rd St) in Graham, Texas.
Date:
February 1, 1984
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[2nd & 1st S.B. Street House]
Photograph of the 2nd & 1st S.B. Street House (located at 800-804 3rd St) in Graham, Texas.
Date:
February 1, 1984
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[2nd S.B. Street House]
Photograph of the 2nd S.B. Street House (located at 800 3rd St) in Graham, Texas.
Date:
February 1, 1984
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[2nd S.B. Street House]
Photograph of the 2nd S.B. Street House (located at 800 3rd St) in Graham, Texas.
Date:
February 1, 1984
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[2nd S.B. Street House]
Photograph of the 2nd S.B. Street House (located at 800 3rd St) in Graham, Texas.
Date:
February 1, 1984
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
[2nd S.B. Street House]
Photograph of the 2nd S.B. Street House (located at 800 3rd St) in Graham, Texas.
Date:
February 1, 1984
Creator:
Texas Historical Commission
Object Type:
Photograph
System:
The Portal to Texas History
ACTVE News, Volume 15, Number 1, February 1984
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:
February 1984
Creator:
Advisory Council for Technical-Vocational Education in Texas
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Advanced Fuel Cell Development Progress Report: April-June 1983
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts on development of molten carbonate fuel cells directed toward seeking alternative cathode materials to NiO. Based on an investigation of the thermodynamically stable phases formed under cathode conditions with a number of transition metal oxides, synthesis of prospective alternative cathode materials and doping of these materials to promote electronic conductivity is under way.
Date:
February 1984
Creator:
Ackerman, J. P. & Pierce, Robert Dean
Object Type:
Report
System:
The UNT Digital Library
The Age, Volume 5, Number 3, February 1, 1984
Monthly publication containing information related to Chambers County, Texas, including current events of the Chambers County Historical Commission, the Wallisville Heritage Park, and the Chambers County historical and genealogical societies; reprinted newspaper articles about county events and citizens; and historical news and records.
Date:
February 1, 1984
Creator:
Wallisville Heritage Park (Organization)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Alloys in energy development
The development of new and advanced energy systems often requires the tailoring of new alloys or alloy combinations to meet the novel and often stringent requirements of those systems. Longer life at higher temperatures and stresses in aggressive environments is the most common goal. Alloy theory helps in achieving this goal by suggesting uses of multiphase systems and intermediate phases, where solid solutions were traditionally used. However, the use of materials under non-equilibrium conditions is now quite common - as with rapidly solidified metals - and the application of alloy theory must be modified accordingly. Under certain conditions, as in a reactor core, the rate of approach to equilibrium will be modified; sometimes a quasi-equilibrium is established. Thus an alloy may exhibit enhanced general diffusion at the same time as precipitate particles are being dispersed and solute atoms are being carried to vacancy sinks. We are approaching an understanding of these processes and can begin to model these complex systems.
Date:
February 1, 1984
Creator:
Frost, B.R.T.
Object Type:
Article
System:
The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 62, No. 28, Ed. 1 Wednesday, February 1, 1984
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 1, 1984
Creator:
Gilmore, Robert K. & Hale, Dave
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Analysis of surface currents on the CTX mesh flux conserver
The use of discharge cleaning and a mesh structure for the flux conserver have led to hotter, less resistive, spheromak configurations in the CTX experiment. Achievement of these conditions has been accompanied by the appearance of oscillations - most notably seen on magnetic probe signals - that were previously not present. These oscillations are observed both during the sustainment (V/sub gun/ not equal to 0) and the decaying (V/sub gun/ = 0) phases of the discharge and are attributed to the presence of internal kink modes driven by the departure of the plasma current distribution from the Taylor state: j/B = const. Computations suggest that an n-1 mode becomes unstable when j/B increases away from the magnetic axis (sustained spheromak) whereas an n=2 mode becomes unstable for radially decreasing j/B (decaying spheromak). The results reported are from an 80-cm-diameter mesh flux conserver constructed form 0.5''-diameter copper stock. It is of the same oblate rooftop design as used for previous work with a dimension of 40 cm from front to back.
Date:
February 1, 1984
Creator:
Wright, B.L.
Object Type:
Article
System:
The UNT Digital Library
[Appendix I-B. Petrographic Descriptions]
Charts providing petrographic descriptions of rock samples obtained in the Waterloo Gulch drainage, listing the rock name, percentage of mineral components, and features of each rock.
Date:
February 1984
Creator:
Goodknight, Craig S. & Dixon, M.
Object Type:
Report
System:
The UNT Digital Library
[Appendix II-B. Petrographic Descriptions]
Report describing the petrography of seven rhyolite specimens and one basalt specimen from China Hat, China Cap, and North Cone areas surveyed for the National Uranium Resource Evaluation (NURE) survey.
Date:
February 1984
Creator:
Goodknight, Craig S. & Allen, D. R.
Object Type:
Report
System:
The UNT Digital Library
[Appendix III-B. Petrographic Descriptions]
Report presenting petrographic descriptions of five rock samples collected at or near the Pedad claims area surveyed for the National Uranium Resource Evaluation (NURE) survey, listing the rock name, percentage of mineral components, and features of each rock.
Date:
February 1984
Creator:
Goodknight, Craig S. & Dixon, M.
Object Type:
Report
System:
The UNT Digital Library
[Appendix IV-B. Petrographic Descriptions]
Report presenting petrographic descriptions of eleven rock samples collected at or near the Venado Creek area surveyed for the National Uranium Resource Evaluation (NURE) survey, listing the rock name, percentage of mineral components, and features of each rock.
Date:
February 1984
Creator:
Goodknight, Craig S.
Object Type:
Report
System:
The UNT Digital Library
[Appendix V-B. Petrographic Descriptions]
Report presenting petrographic descriptions of eight rock samples collected at or near the Tusas Mountain Granite and Maquinita Granodorite areas surveyed for the National Uranium Resource Evaluation (NURE) survey, listing the rock name, percentage of mineral components, and features of each rock.
Date:
February 1984
Creator:
Goodknight, Craig S.
Object Type:
Report
System:
The UNT Digital Library
Aspen simulation of oil shale retort off-gas cleanup with venturi scrubbers
A significant fraction of the product energy from oil shale retorting is contained in the retort off gas. Most oil shale processes use the retort off gas from plant fuel. The H/sub 2/S and NH/sub 3/ in retort off gas produce too much SO/sub 2/ and NOX to allow burning without a pollution control system. We used the ASPEN flowsheet simulator to model retort off-gas cleanup by venturi scrubbers. Venturi scrubbers are commonly used to remove particulates from gas streams, but the scrubbing liquid also absorbs some NH/sub 3/ and H/sub 2/S from the gas. The ASPEN venturi scrubber model makes good predictions of the particulate removal efficiency. The ASPEN estimates for H/sub 2/S and NH/sub 3/ absorption are higher than the equilibrium absorption predictions made by a state-of-the-art sour water vapor-liquid equilibrium model, TIDES. The discrepancy probably results from trying to simulate an electrolyte system with a vapor-liquid equilibrium model that is designed for molecular systems. The simulation indicates that a venturi scrubber may absorb enough NH/sub 3/ to serve as the primary NH/sub 3/ removal system. The H/sub 2/S absorption is quite low, however, and some other process is needed to remove the H/sub 2/S. 17 references, 6 …
Date:
February 1, 1984
Creator:
Phillips, T. T.
Object Type:
Report
System:
The UNT Digital Library
Assessment of extent and degree of thermal damage to polymeric materials in the Three Mile Island Unit 2 reactor building. Volume VI
Thermal damage to susceptible materials in accessible regions shows damage-distribution patterns that indicate nonuniform intensity of exposure. No clear explanation for nonuniformity is found in existing evidence; e.g., in some regions a lack of thermally susceptible materials frustrates analysis. Elsewhere, burned materials are present next to materials that seem similar but appear unscathed - leading to conjecture that the latter materials preferentially absorb water vapor during periods of high local steam concentration. Most of the polar crane pendant shows heavy burns on one half of its circumferential surface. This evidence suggests that the polar crane pendant side that experienced heaviest burn damage was exposed to intense radiant energy from a transient fire plume in the reactor containment volume. Tests and simple heat-transfer calculations based on pressure and temperature records from the accident show that the atmosphere inside the reactor building was probably 8% hydrogen in air, a value not inconsistent with the extent of burn damage. Burn-pattern geography indicates uniform thermal exposure in the dome volume to the 406-ft level (about 6 ft below the polar crane girder), partial thermal exposure in the volume between the 406- and 347-ft levels as indicated by the polar crane cable, and lack of …
Date:
February 1, 1984
Creator:
Alvares, N. J.
Object Type:
Report
System:
The UNT Digital Library
An Assessment of the Social and Special Effects of Siting a Low-Level Radioactive Waste Disposal Facility in Texas: Phase 1. Historical and Sociodemographic Dimensions
Report providing a background summary of the potential sitting areas for a low-level radioactive waste disposal facility and a thorough study of the possible site location.
Date:
February 1984
Creator:
Texas Low-Level Radioactive Waste Disposal Authority
Object Type:
Report
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 62, No. 80, Ed. 1 Wednesday, February 1, 1984
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 1, 1984
Creator:
Brown, Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Brine and gas recovery from geopressured systems. I. Parametric calculations
A series of parametric calculations was run with the S-CUBED geopressured-geothermal simulator MUSHRM to assess the effects of important formation, fluid and well parameters on brine and gas recovery from geopressured reservoir systems. The specific parameters considered are formation permeability, pore-fluid salinity, temperature and gas content, well radius and location with respect to reservoir boundaries, desired flow rate, and possible shale recharge. It was found that the total brine and gas recovered (as a fraction of the resource in situ) were most sensitive to formation permeability, pore-fluid gas content, and shale recharge.
Date:
February 1, 1984
Creator:
Garg, S. K. & Riney, T. D.
Object Type:
Report
System:
The UNT Digital Library