Experimental investigations of high-Z materials in the ASDEX-Upgrade divertorFunded under: EAEC-FUSION 12C
The erosion, plasma penetration and redeposition of divertor plate material such as C, Si, V, Mo and W have been studied in the ASDEX-Upgrade divertor. Long-term erosion and redeposition have been studied using evaporated markers, while time resolved measurements and plasma penetration were studied spectroscopically on W tiles. The expected reduction of erosion due to plasma ion sputtering was confirmed. This reduced erosion is accompanied by largely enhanced deposition for high-Z ions, when the gyroradius exceeds the ionisation length.
Bibliographic Reference: Article: Journal of Nuclear Materials, Vol. 220-222 (1995) pp. 231-234
Record Number: 199510779 / Last updated on: 1995-07-12
Original language: en
Available languages: en