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This work investigates graphite erosion in tokamak walls. A model of chemical dry etching of graphite in hydrogen is presented and the use of the model in ASDEX-Upgrade is discussed. Measurements on ASDEX-Upgrade using mass spectrometry show that the extent of graphite erosion exceeds expected levels.

Additional information

Authors: RICHTER T, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Report: IPP 5/55 DE (1994) 10 pp.
Availability: Available from Max-Planck-Institut für Plasmaphysik, 8046 Garching bei München (DE)
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