Plasma Flow Measurements with Mach Probe

概要

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A lVIach probe is sttrdied as a simple naethod to utueasttre the plasuaua flow velocity ([NIachntrmber) along taaagnetic field litues. Tlae probe XV2tS located behind the separator, which isumovable alor'ng the field line, to avoid a recycling-like phenornenon that occtmrs owing to theplastna striking the separator. Frouaa the ratio of ion ctrrrerats to the probe with to withottttlae separator, the 1VI?tch nutnber was dedtrced by applying a theory proposed by Chung [Plays.Plastauas 1 (1994) 2864]. Bven thotrgh tlue tlaeory is not neccesaril3' satisfactory for approxiraaationof tlte viscosity teruaa in fltrid eqtratiouas, tlae 1VIstcl'x tatrrnber obtairted f'rona the Klach probe isconaapared fairly well xvith the real IVIaclt ntrraaber xvhich XV2lS obtained f'rouaa dispersion relationsof the sluear Alfven XV0X7Cl driftitag alortg or agait'xst tlae plastaaa [lOXV.
社団法人日本物理学会の論文
1998-11-15