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Abstract

The simultaneous bombardment of a W surface by hydrogen isotopes and carbon impurities leads to synergistic effects with significantly different plasma-wall interaction properties compared to the ones of pure hydrogen or pure carbon bombardment. Simultaneous impact of carbon and hydrogen ions has been realised by irradiation of W targets with CH(+)(3)radicals produced by a high current ion source. For comparison, the same experiment was also carried out with C(+) ions. The measured evolution of the target weight as a function of irradiation fluence and the final amount of deposited carbon are compared to a simple model of erosion-deposition balance. This allows one to derive the dependence of the carbon sputtering yield on both the impacting ion species and the target temperature.

Additional information

Authors: KRIEGER K, Max-Planck-Institut f³r Plasmaphysik, IPP-EURATOM Association, Garching (DE);ROTH J, Max-Planck-Institut f³r Plasmaphysik, IPP-EURATOM Association, Garching (DE)
Bibliographic Reference: An article published in: Elsevier; Journal of Nuclear Materials. 290-293 (2001) pp.107-111
Availability: An article published in: Elsevier; Journal of Nuclear Materials. 290-293 (2001) pp.107-111
Record Number: 200013436 / Last updated on: 2001-06-27
Category: PUBLICATION
Original language: en
Available languages: en