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  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 56 (1985), S. 1885-1887 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A liquid-He/liquid-N2 cryostat system has been developed to freeze D2 gas and extrude fibers of solid deuterium into a vacuum chamber. Fibers that are 40 μm in diameter and 10 cm long have been successfully and routinely produced. The fibers are observed to remain constant in physical dimensions for several minutes. A fiber will be used as the electrical load for a pulsed power machine in a program investigating the properties of dense, ohmically heated plasmas for controlled thermonuclear fusion.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 5202-5204 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A novel "point-diffraction'' interferometer has been implemented on the Los Alamos solid fiber Z-pinch experiment. The laser beam is split into two legs after passing through the plasma. The reference leg is filtered with a pin-hole aperture and recombined with the other leg to form an interferogram. This allows compact mounting of the optics and relative ease of alignment. The Z-pinch experiment employs a pulsed-power generator that delivers up to 700 kA with a 100 ns rise time through a fiber of deuterium or deuterated polyethylene (CD2) that is 5-cm long and initially solid with radius r≈15 μm. The interferometer, using a Δt≈200 ps pulse from a Nd:YAG laser frequency doubled to λ=532 nm, measures the electron line density and, assuming azimuthal symmetry, the density as a function of radial and axial position. Calculations predict Faraday rotations of order π/2 for plasma and current densities that this experiment was designed to produce. The resulting periodic loss of fringes would provide the current density distribution.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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