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A 2-MV multi-beam injector for heavy ion fusion
Construction of a sixteen beam (0.5 A per beam) injector for use in scaled heavy ion fusion experiments is underway at LBL. The machine was designed and partially constructed at LANL. The injector is designed to use carbon arc sources which will provide 25 mA/cm/sup 2/ of extractable current density. The plasma from the arcs is confined electrostatically from drifting into the ion gun before firing the extraction pulse. The acceleration column consists of a set of aperture lenses which both transport the beam and attenuate backstreaming electrons. The acceleration column is mounted inside a 28-inch diameter brazed alumina insulating module. The high voltage for the injector is provided by an inductively loaded and graded Marx generator which resides inside a pressure vessel filled with a 65 psig mixture of 30/percent/ SF/sub 6/ and 70/percent/ N/sub 2/. Data is presented showing the performance of single and multiple carbon arc sources. Measurements show that adequate current density is available. Emittance measurements and efforts to improve emittance and reproducibility are shown. Tests with a 5-tray section of the full 18 tray generator are described showing the evolution of the generator design. 5 refs., 3 figs.
Date:
June 1, 1988
Creator:
Rutkowski, H. L.; Faltens, A.; Vanecek, D.; Pike, C.; Humphries, S., Jr. & Meyer, E. A.
Object Type:
Article
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 16, No. 30, Ed. 1 Friday, June 3, 1988
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
June 3, 1988
Creator:
Immel, Greg
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 16, No. 31, Ed. 1 Friday, June 10, 1988
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
June 10, 1988
Creator:
Immel, Greg
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 16, No. 32, Ed. 1 Friday, June 17, 1988
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
June 17, 1988
Creator:
Immel, Greg
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 16, No. 33, Ed. 1 Friday, June 24, 1988
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
June 24, 1988
Creator:
Immel, Greg
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
1987-88 Evaluation Topics Report to The State Board of Education
Report that evaluates the effects of the Texas Council on Vocational Education's Master Plan, which intended to help graduated high school students be better prepared for entering the work force.
Date:
June 11, 1988
Creator:
Texas Council on Vocational Education
Object Type:
Report
System:
The Portal to Texas History
45th Infantry Museum
Photograph of military aircraft at the 45th Infantry Museum.
Date:
June 1988
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
45th Infantry Museum
Photograph of a tank and military aircraft at the 45th Infantry Museum.
Date:
June 1988
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Accelerator research on MBE-4, an experimental multi-beam induction linac
The multiple beam accelerator MBE-4 is a device for research toward a heavy ion driver for inertial confinement fusion, based on the induction linac concept. Its main goal is proof of the principle of current amplification by acceleration and controlled self-similar beam pulse compression. Into the 16-m long device four beams, each with an initial current of 10 mA are injected from a Marx-driven diode at 200 keV. The current amplification is up to nine-fold, with a final beam energy of about 800 keV in the middle of the bunch. Now that all the apparatus' accelerator sections have been completed, installed and aligned, and its unaccelerated transport properties have been studied, our experimental research has reached the crucial phase of implementing appropriate accelerator schedules that approximate self-similar current-pulse compression. These schedules are established through a close interplay of computations using a one-dimensional simulation code and a manual empirical tuning procedure. In a first approach, with a rather vigorous schedule that uses most of the accelerator modules to their voltage limits, we have determined the limits of our capability for controlled pulse compression, mainly due to waveform shaping of the driving pulse-forming networks. We shall report on these results. In the …
Date:
June 1, 1988
Creator:
Meuth, H.; Fessenden, T. J.; Keefe, D. & Warwick, A. I.
Object Type:
Article
System:
The UNT Digital Library
Achieve World Class Excellence In Medical Services
Report outlining the plans for San Antonio to position itself as an international bioscience center. Includes plans to support the emergence of first-rank clinical centers, long-term recovery-recuperation facilities, and continued expansion of current bioscience facilities.
Date:
June 21, 1988
Creator:
unknown
Object Type:
Book
System:
The Portal to Texas History
Achromatic beam combiner and bend system for ILSE (Induction Linac System Experiment)
The lattice configuration of the beam combiner and bend system of the proposed Induction Linac System Experiment (ILSE) is described. These subsystems must transport high current ion beams with large momentum variations within a single pulse (..delta..P/P/sub 0/ less than or equal to +-.1), with minimal beam loss or emittance growth. Configurations which are achromatic through first order, including the effect of image fields have been developed. Calculations of the beam envelope and centroid motion are made with beam dynamics code HICURB, which includes strong space charge effects and chromatic effects through all orders. 5 refs., 5 figs.
Date:
June 1, 1988
Creator:
Lee, Edward P.
Object Type:
Article
System:
The UNT Digital Library
Advanced Materials by Design
This assessment responds to a joint request from the House Committee on Science, Space, and Technology and the Senate Committee on Commerce, Science, and Transportation to analyze the military and commercial opportunities presented by new structural materials technologies, and to outline the Federal policy objectives that are consistent with those opportunities.
Date:
June 1988
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library
Advanced materials for solid oxide fuel cells: Hafnium-Praseodymium-Indium Oxide System
The HfO/sub 2/-PrO/sub 1.83/-In/sub 2/O/sub 3/ system has been studied at the Pacific Northwest Laboratory to develop alternative, highly electrically conducting oxides as electrode and interconnection materials for solid oxide fuel cells. A coprecipitation process was developed for synthesizing single-phase, mixed oxide powders necessary to fabricate powders and dense oxides. A ternary phase diagram was developed, and the phases and structures were related to electrical transport properties. Two new phases, an orthorhombic PrInO/sub 3/ and a rhombohedral Hf/sub 2/In/sub 2/O/sub 7/ phase, were identified. The highest electronic conductivity is related to the presence of a bcc, In/sub 2/O/sub 3/ solid solution (ss) containing HfO/sub 2/ and PrO/sub 1.83/. Compositions containing more than 35 mol % of the In/sub 2/O/sub 3/ ss have electrical conductivities greater than 10/sup /minus/1/ (ohm-cm)/sup /minus/1/, and the two or three phase structures that contain this phase appear to exhibit mixed electronic-ionic conduction. The high electrical conductivities and structures similar to the Y/sub 2/O/sub 3/-stabilized ZrO/sub 2/(HfO/sub 2/) electrolyte give these oxides potential for use as cathodes in solid oxide fuel cells. 21 refs.
Date:
June 1, 1988
Creator:
Bates, J. L.; Griffin, C. W. & Weber, W. J.
Object Type:
Report
System:
The UNT Digital Library
The Age, Volume 9, Number 6, June 1988
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:
June 1988
Creator:
Wallisville Heritage Park (Organization)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
AIDS Update, Volume 3, Number 6, June 1988
Monthly newsletter describing news and events related to the AIDS Resource Center in Dallas, Texas as well as articles, letters, advice columns, and advertisements of interest to subscribers.
Date:
June 1988
Creator:
AIDS Resource Center (Dallas, Tex.)
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 112, No. 51, Ed. 1 Thursday, June 2, 1988
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
June 2, 1988
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 112, No. 52, Ed. 1 Thursday, June 9, 1988
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
June 9, 1988
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 113, No. 1, Ed. 1 Thursday, June 16, 1988
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
June 16, 1988
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 113, No. 2, Ed. 1 Thursday, June 23, 1988
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
June 23, 1988
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 113, No. 3, Ed. 1 Thursday, June 30, 1988
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
June 30, 1988
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The all particle method: Coupled neutron, photon, electron, charged particle Monte Carlo calculations
At the present time a Monte Carlo transport computer code is being designed and implemented at Lawrence Livermore National Laboratory to include the transport of: neutrons, photons, electrons and light charged particles as well as the coupling between all species of particles, e.g., photon induced electron emission. Since this code is being designed to handle all particles this approach is called the ''All Particle Method''. The code is designed as a test bed code to include as many different methods as possible (e.g., electron single or multiple scattering) and will be data driven to minimize the number of methods and models ''hard wired'' into the code. This approach will allow changes in the Livermore nuclear and atomic data bases, used to described the interaction and production of particles, to be used to directly control the execution of the program. In addition this approach will allow the code to be used at various levels of complexity to balance computer running time against the accuracy requirements of specific applications. This paper describes the current design philosophy and status of the code. Since the treatment of neutrons and photons used by the All Particle Method code is more or less conventional, emphasis in …
Date:
June 1, 1988
Creator:
Cullen, D.E.; Perkins, S.T.; Plechaty, E.F. & Rathkopf, J.A.
Object Type:
Article
System:
The UNT Digital Library
The Allen American (Allen, Tex.), Vol. 18, No. 110, Ed. 1 Wednesday, June 1, 1988
Semiweekly newspaper from Allen, Texas that includes local, state, and national news along with advertising.
Date:
June 1, 1988
Creator:
Wedgeworth, Wayne
Object Type:
Newspaper
System:
The Portal to Texas History
The Allen American (Allen, Tex.), Vol. 18, No. 111, Ed. 1 Sunday, June 5, 1988
Semiweekly newspaper from Allen, Texas that includes local, state, and national news along with advertising.
Date:
June 5, 1988
Creator:
Wedgeworth, Wayne
Object Type:
Newspaper
System:
The Portal to Texas History
The Allen American (Allen, Tex.), Vol. 18, No. 112, Ed. 1 Wednesday, June 8, 1988
Semiweekly newspaper from Allen, Texas that includes local, state, and national news along with advertising.
Date:
June 8, 1988
Creator:
Wedgeworth, Wayne
Object Type:
Newspaper
System:
The Portal to Texas History