Current Density Profile Measurements in the Proto-Cleo Torsatron

Current density profile measurements were obtained in the Proto-Cleo torsatron (R = 40 cm, a = 5 cm, I = 3, BT = 3 kG, nα ~ 1011 cm-3, Te ~ 20 eV) by using a small back-to-back flat double probe. Three different operating circuits used with this probe are presented, along with experimental results,...

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Veröffentlicht in:	IEEE Trans. Plasma Sci.; (United States) 1980-06, Vol.8 (2), p.120-124
Hauptverfasser:	Schaeffer, R. C., Shohet, J. L.
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY Circuits CLOSED PLASMA DEVICES CURRENT DENSITY Current measurement CURRENTS Density measurement ELECTRIC CURRENTS ELECTRIC PROBES Electrons ELEMENTS MAGNETIC FIELD CONFIGURATIONS MAGNETIC SURFACES METALS Plasma confinement Plasma density Plasma measurements Plasma temperature PLATINUM PLATINUM METALS PROBES STELLARATORS THERMONUCLEAR DEVICES TORSATRON STELLARATOR TRANSITION ELEMENTS 700104 > Fusion Energy-- Plasma Research-- Plasma Kinetics-Experimental-- (-1987)
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Zusammenfassung:	Current density profile measurements were obtained in the Proto-Cleo torsatron (R = 40 cm, a = 5 cm, I = 3, BT = 3 kG, nα ~ 1011 cm-3, Te ~ 20 eV) by using a small back-to-back flat double probe. Three different operating circuits used with this probe are presented, along with experimental results, all showing good agreement. Current is seen to flow only within the separatrix, in channels which follow the magnetic surfaces as they move radially inward with time due to changing vertical magnetic flux.
ISSN:	0093-3813 1939-9375
DOI:	10.1109/TPS.1980.4317281