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Feedback-controlled puffing of neon and deuterium has been applied to control the ELM behaviour and the target plate power deposition during high power H-mode discharges in ASDEX-Upgrade. A regime has been found in which more than 90 % of the heating power is lost through radiation and divertor detachment occurs, without deterioration of the energy confinement. The plasma remains in the H-mode, exhibiting small amplitude, high frequency ELMs, which do not penetrate to the target plates in the strike zone region.

Additional information

Authors: GRUBER O ET AL., Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Article: Physical Review Letters, Vol. 74 (1995) No. 21, pp. 4217-4220
Record Number: 199511198 / Last updated on: 1995-10-10
Original language: en
Available languages: en