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Abstract

Erosion and deposition at the vessel walls of the main chamber of JET were measured with long term samples during the whole operation period of the Mark I carbon divertor from April 1994 until March 1995. Assuming toroidal symmetry, about 70g Ni + Cr + Fe was found to be eroded from the inner torus wall and about 55g Be from the outer torus wall due to the sputtering by energetic charge-exchange neutrals. Deposition has been measured on a poloidal section of the Mark I C divertor and on tiles from the inner and outer wall limiters. Eroded material is redeposited in the divertor and in the main chamber where it is foound predominantly at the sides of the poloidal limiters and at the outer vessel wall. At these deposition-dominated areas in total about 25g Ni+Cr+Fe, 28g Be and 370g C are found

Additional information

Authors: MAYER M, Max-Planck-Institut fur Plasmaphysik, Garching bei Munchen (DE);BEHRISCH R, Max-Planck-Institut fur Plasmaphysik, Garching bei Munchen (DE);PLAMANN K, Max-Planck-Institut fur Plasmaphysik, Garching bei Munchen (DE);ANDREW P, Max-Planck-Institut fur Plasmaphysik, Garching bei Munchen (DE);COAD J P, Max-Planck-Institut fur Plasmaphysik, Garching bei Munchen (DE);PEACOCK A T, Max-Planck-Institut fur Plasmaphysik, Garching bei Munchen (DE)
Bibliographic Reference: Article: Journal of Nuclear Materials, 266-269, (1999), 604-610
Record Number: 199910718 / Last updated on: 1999-05-14
Category: PUBLICATION
Original language: en
Available languages: en