Key points are not available for this paper at this time.
It is shown that a plateau-like scaling gives a good overall fit to energy confinement data of Ohmic and L-regime discharges for devices ranging from Pulsator to JET. Systematic deviations become evident in density scans in single experiments which, at least for neutral injection heated discharges, might be explained by a compensation of confinement trends by penetration effects.
Lackner et al. (1990) studied this question.