ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
A segmented disk electrode is described that produces and controls both relative drift parallel to the magnetic field and localized flow perpendicular to the magnetic field in a Q machine plasma. Measurements of the electron drift velocity vd with respect to the ions, and the electric field E for many bias-voltage combinations are used to demonstrate the controllability of the ratio vE/vd, where vE=E×B/B2, in a narrow channel between the regions that magnetically map to the segments. Radial electric fields of magnitudes ranging from 0 to ±3 V/cm localized within a current channel with parallel electron drift velocities up to half the electron thermal velocity have been produced with the segmented disk electrode.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1144590
