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Abstract

Results of confinement studies on an L mode database covering ten years of operation of ASDEX are presented. During this time, the ASDEX divertor was modified several times. Scaling expressions for closed and open divertor configurations are compared. Strong evidence is found that the confinement time of plasmas in closed divertor configurations scales more weakly with the plasma current and shows weaker degradation with heating power. Furthermore, full profile information is used to evaluate scaling expressions for the thermal energy confinement time. They confirm the scaling differences between the divertors and show a stronger density dependence than the total confinement time.

Additional information

Authors: STROTH U, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);KAISER M, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);RYTER F, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);WAGNER F, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Article: Nuclear Fusion, Vol. 35 (1995) No. 2, pp. 131-142
Record Number: 199510573 / Last updated on: 1995-04-21
Category: PUBLICATION
Original language: en
Available languages: en