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Abstract

A high power ECH system is currently being installed on TCV. Although Ohmic H-modes are regularly obtained in a wide variety of TCV plasmas, LH transitions have only rarely been observed in low density plasmas. The first goal of these experiments was to find out whether the H-mode was accessible with a low density ECH target plasma. The LH threshold power was found to increase as the plasma density decreased, in contradiction with the ITER threshold power scaling.

Additional information

Authors: CENTRE DE RECHERCHES EN PHYSIQUE DES PLASMAS, ;ECOLE POLYTECHNIQUE FEDERALE, ;LAUSANNE (CH),
Bibliographic Reference: Article: 26th EPS Conference on Controlled Fusion and Plasma Physics, (1999)
Record Number: 199911081 / Last updated on: 1999-08-06
Category: PUBLICATION
Original language: en
Available languages: en