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Measurements of Flow Velocity in the Plasma Generator PSI‐2
Author(s) -
Kiss'ovski Zh.,
Bohmeyer W.,
Reiner H.D.
Publication year - 2001
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/1521-3986(200109)41:5<517::aid-ctpp517>3.0.co;2-c
Subject(s) - plasma , divertor , tokamak , mach number , atomic physics , saturation current , magnetic field , argon , materials science , flow velocity , physics , flow (mathematics) , mechanics , nuclear physics , voltage , quantum mechanics
The plasma flow velocity in the Plasma Generator PSI‐2 has been investigated by using of Mach probe. PSI‐2 is a stationary high‐current arc discharge in which the quasi‐neutral plasma expands along the magnetic field lines. The low‐temperature ( T e < 20 eV), medium density ( n e ∼ 10 18 — 10 19 m —3 ) plasma in the discharge is similar to the plasma in the divertor region of tokamaks. From the ratio of ion saturation currents collected from opposite sides of the probe the flow velocities (Mach numbers) in argon and hydrogen discharges are obtained.