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  • 1
    Electronic Resource
    Electronic Resource
    Neutral-particle densities outside the TMX-U plasma edge (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 2100-2100 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: Neutral molecular densities just outside the plasma edge are measured at 11 axial locations in tandem mirror experiment-upgrade (TMX-U). These densities are time dependent and vary greatly with different modes of TMX-U plasma operation. The densities are low in the ion-cyclotron resonance heated central cell because of plasma pumping. The density is high in the plug near the sloshing-ion turning point. These densities are measured with a combination of new retractable, and fixed, magnetically unshielded Bayard–Alpert gauges that can be oriented to provide calibrated operation in the high (7 kG) TMX-U magnetic fields. The role of the neutral density in simultaneously fueling and charge exchanging away the plug density is modeled using smoke, a Fokke–Planck code.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138754
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Tandem-Mirror Experiment-Upgrade neutral pressure measurement diagnostic systems (1985)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 56 (1985), S. 978-980 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The Tandem-Mirror Experiment-Upgrade (TMX-U) has a large and complex system of Bayard–Alpert, magnetron, and Penning gauges, in addition to mass spectrometers (RGA), all of which measure neutral pressures in the many internal regions of TMX-U. These pressure measurements are used as part of the confinement physics data base as well as for management of the TMX-U vacuum system. Dynamic pressures are modeled by a coupled-volumes simulation code, which includes wall reflux, getter pumping, and plasma pumping.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138010
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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