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  • American Institute of Physics (AIP)  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Plasma temperature measurements using a time and spatially resolved x-ray camera : Proceedings of the 9th topical conference on high temperature plasma diagnostics (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 5049-5051 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We have developed a diagnostic for measuring the blackbody temperature of a dense plasma produced in a high power capillary discharge. This diagnostic can be described as a filtered x-ray pinhole framing camera. The camera consists of a stripline microchannel plate and a filtered pinhole array. The camera is capable of producing two-dimensional images with time and spectral resolution. We utilize this camera to measure the temperature of a dense optically thick plasma. The imaging also enables us to determine temperature profiles and spatial effects which cannot be determined with other methods such as filtered x-ray diodes. We will present a complete description of the camera, our procedure for using it, and results from the experiment we carried out.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1143488
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Confinement of translated field-reversed configurations (1986)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 29 (1986), S. 863-870 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The confinement properties of translating field-reversed configurations (FRC) in the FRX-C/T device [Phys. Fluids 29, (square, solid) (square, solid) (square, solid) (square, solid) (1986)] are analyzed and compared to previous data without translation and to available theory. Translation dynamics do not appear to appreciably modify the FRC confinement. Some empirical scaling laws with respect to various plasma parameters are extracted from the data. These are qualitatively similar to those obtained in the TRX-1 device [Phys. Fluids 28, 888 (1985)] without translation and with a different formation method. Translation with a static gas fill offers new opportunities such as improved particle confinement or refueling of the FRC particle inventory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.865888
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Experimental studies of field-reversed configuration translation (1986)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 29 (1986), S. 852-862 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In the FRX-C/T experiment [Proceedings of the 9th Symposium for Engineering Problems of Fusion Research (IEEE, New York, 1981), p. 1751], field-reversed configuration (FRC) plasmas have been formed in, and launched from, a field-reversed theta-pinch source and subsequently trapped in an adjacent confinement region. No destructive instabilities or enhanced losses of poloidal flux, particles, or thermal energy are observed for FRC total trajectories of up to 16 m. The observed translation dynamics agree with two-dimensional magnetohydrodynamic (MHD) simulations. When translated into reduced external magnetic fields, FRC's are observed to accelerate, expand, and cool in partial agreement with adiabatic theory. The plasmas reflect from an external mirror and after each reflection, the axial kinetic energy is reduced by approximately 50%. Because of this reduction, FRC's are readily trapped without the need of pulsed gate magnet coils.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.865887
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