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Baseball II-T, a new target plasma startup experiment

Description: A brief description is given of modifications and additions to the existing Baseball II experiment. These changes will make it possible to study target plasma buildup in a steady-state magnetic field. This experiment, now called Baseball II-T$sup +$ will use a pellet generator to deliver ammonia pellets into the center of the magnetic mirror field where they will be heated with a 300-J, 50-ns, CO$sub 2$ laser. The plasma created by this method will have a density of approximately 10$sup 13$ cm$… more
Date: November 14, 1975
Creator: Chargin, A.; Denhoy, B.; Frank, A. & Thomas, S.
Item Type: Refine your search to only Article
open access

Calculation of electromagnetic fields and forces in coil systems of arbitrary geometry

Description: A computer program, EFFI, is described which calculates the electric and magnetic fields due to an arbitrary spatial distribution of current-carrying circular loops, circular arcs, and straight lines. The electric field is assumed to arise solely from the time variation of the magnetic field, and the magnetic field due to the changing electric field is assumed to be negligible. In addition, the conductor bundle elements (loops, arcs, lines) are assumed to be absent. Electric and magnetic flux l… more
Date: November 14, 1975
Creator: Sackett, S.J.
Item Type: Refine your search to only Article
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Calculations of self-generated magnetic fields in parylene disc experiments

Description: Experiments have been planned at Livermore to measure self-generated magnetic fields using the Faraday Rotation of frequency quadrupled 1.1 $mu$m laser light. The LASNEX code was used during the planning of these experiments and has provided valuable information in establishing the conditions under which the thermoelectric fields expected can be measured. Suspected thermoelectric fields have been inferred from experiments that have been carried out at NRL. (auth)
Date: October 14, 1975
Creator: Dahlbacka, G.H.; Mead, W.C.; Max, C.E. & Thomson, J.J.
Item Type: Refine your search to only Article
open access

Computer-controlled sampling system for airborne particulates

Description: A self-contained, mobile, computer-controlled air-sampling system has been designed and fabricated that also collects and records the data from eight meteorological sensors. The air-samplers are activated automatically when the collected meteorological data meet the criteria specified at the beginning of the data-collection run. The filters from the samplers are intended to collect airborne $sup 239$Pu for later radionuclide analysis and correlation with the meteorological data for the study of… more
Date: August 14, 1975
Creator: Hall, C. F.; Anspaugh, L. R.; Koval, J. S.; Phelps, P. L. & Steinhaus, R. J.
Item Type: Refine your search to only Report
open access

Development of a Low Cost Versatile Method for Measurement of HTO and HT in Air

Description: A low cost, highly sensitive method for the measurement of HTO and HT in air has been developed. The air is first passed through an ethylene glycol bubbler to remove the HTO, then through a heated palladium catalyst where the HT gas is oxidized to HTO and collected in a second ethylene glycol bubbler. The tritium collected by the bubblers is measured by liquid scintillation counting. Recoveries of 95 to 100% with air flow up to 750 cm/sup/3 /min are routinely obtained. The sensitivity of the me… more
Date: February 14, 1975
Creator: Sheehan, W.E.; Curtis, M.L. & Carter, D.C.
Item Type: Refine your search to only Report
open access

Durability of adhesive bonds to uranium alloys, tungsten, tantalum, and thorium. [U--Nb; Ta--10 percent W]

Description: Long-term durability of epoxy bonds to alloys of uranium (U-Nb and Mulberry), nickel-plated uranium, thorium, tungsten, tantalum, tantalum--10 percent tungsten, and aluminum was evaluated. Significant strengths remain after ten years of aging; however, there is some evidence of bond deterioration with uranium alloys and thorium stored in ambient laboratory air.
Date: June 14, 1975
Creator: Childress, F. G.
Item Type: Refine your search to only Report
open access

Environmental impact assessment: chemical explosive fracturing project, Petroleum Technology Corporation/Sutton County, Texas

Description: A proposed two-well stimulation test to be carried out in Sutton County, Texas is described. Work will be performed in the lenticular tight sand formation of the Val Verde-Kerr Basin to demonstrate the technical and economic feasibility of chemical explosive fracturing as a method of increasing gas deliverability in that formation. The purpose of the project's experimental design, which calls for the testing of two separate wells using different techniques, would be to obtain the maximum amount… more
Date: July 14, 1975
Creator: Tonnessen, Kathy A.
Item Type: Refine your search to only Report
open access

FFTF report: FFTF piping installation and welding techniques

Description: The main sodium piping with a diameter of 16'' or 28 '' is being installed at the FFTF construction site starting in December 1974. The supplier and authority demarcations are: Combustion Engineering supplies the reactor vessel, guard vessel and adjoining pipes and uses the machine welding equipment ''Dimetrics''; for the piping system of the primary and secondary loops the pipes manufactured by Rollmet at HUICO, Pasco, were delivered and prefabricated there, as far as compatible with the insta… more
Date: March 14, 1975
Creator: Gilles, J.
Item Type: Refine your search to only Report
open access

Fusion reactors: a remote possibility

Description: The next generation of controlled thermonuclear reactor experiments will be faced with the handling problems of tritium and neutron activation that will dominate the safety and maintenance problems of future fusion reactors. The nuclear industry has been working with highly radioactive systems for many years and has developed the tools and methods to do safely productive work in the presence of high radiation fields. These methods can be applied to CTR work by extending them to the unique probl… more
Date: November 14, 1975
Creator: Doggett, James N.
Item Type: Refine your search to only Article
open access

Gas laser cells: stress analysis of cylindrical cells with radial injection of electrons

Description: The problem is to develop a design procedure for pressurized cylindrical excimer laser cells. Excitation of the pressurized laser gas is by a short pulse of high energy electrons injected through the cell wall. In traversing the wall, the electrons lose energy and heat the wall. Because of rapid gas heating, a shock wave is generated which produces an additional load on the wall. Selected for analysis is a simple, conservative model of a cylindrical cell pressurized to double the shock pressure… more
Date: February 14, 1975
Creator: Lai, W.
Item Type: Refine your search to only Report
open access

Ionization, charge exchange, and secondary electron emission in the extractor of an LBL/LLL neutral beam source

Description: Using a computer code, bombardment of the electrodes resulting from ionization, charge-exchange, and back-ion emission from the neutralizer cell is studied in the positive-ion extractor region of a Lawrence Berkeley Laboratory/ Lawrence Livermore Laboratory (LBL/LLL) neutral beam source. Ion and electron trajectories are presented, grid dissipations estimated, and proposals made for future designs. (auth)
Date: October 14, 1975
Creator: Fink, J. H. & McDowell, C. E.
Item Type: Refine your search to only Article
open access

Lens and mirror design via the principal surface

Description: The problem of optical design is stated as follows: Given a principal surface r($alpha$), and a maximum focal angle $alpha$/sub m/, find the pair of optical surfaces for which diffraction limited focusing is achieved. It is shown that specification of r($alpha$) and $alpha$/sub m/ uniquely determines the lens design to within a scale factor, given the refractive index of the lens. It is further shown that one straightforward Runge-Kutta integration routine generates both surfaces for either a l… more
Date: July 14, 1975
Creator: Greenbaum, A.; Glass, A.J. & Trenholme, J.B.
Item Type: Refine your search to only Article
open access

Mechanical design for neutral beam injection

Description: At the Lawrence Livermore and Berkeley Laboratories two major neutral beam system designs were developed, the High Voltage Test Stand (HVTS) and a conceptual system for the Two Component Tokamak-Toroidal Fusion Test Reactor (TCT- TFTR). The HVTS was designed for flexibility in performing a wide variety of tests, while the TCT-TFTR beam line was designed to satisfy particular requirements for target-plasma operation. Both designs make use of condensation cryopumping to handle very high gas loads… more
Date: November 14, 1975
Creator: Pittenger, L.C.
Item Type: Refine your search to only Article
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