q measurements during sawtooth oscillations in a low q tokamak
- 1 November 1989
- journal article
- letter
- Published by AIP Publishing in Physics of Fluids B: Plasma Physics
- Vol. 1 (11) , 2139-2141
- https://doi.org/10.1063/1.859078
Abstract
The central safety factor during a sawtooth oscillation in material limiter tokamak discharges (scrapeoff plates inserted to the separatrix) in the TOKAPOLE II poloidal divertor tokamak [Phys. Rev. Lett. 4 9, 734 (1982)] is measured to be significantly less than 1 (approximately 0.7) during a sawtooth oscillation. This result is identical to that observed earlier in the same device in magnetic limiter discharges. Thus the presence of scrapeoff plasma beyond the divertor separatrix is not responsible for the absence of total reconnection.Keywords
This publication has 3 references indexed in Scilit:
- Measurement of the rotational transform at the axis of a tokamakPhysical Review Letters, 1987
- Discharges with Safety Factor,, <1 in a Noncircular TokamakPhysical Review Letters, 1982
- Internal disruptions in tokamaksNuclear Fusion, 1978