Abstract
MkIIGB divertor tiles exposed in JET for the 1998–2001 and 1999–2001
campaigns have been used to assess the amount of beryllium and carbon
deposited at the inner divertor wall. Total amount of Be at the inner
divertor tiles was determined and integrated toroidally. Results were
compared with data obtained with optical spectroscopy and good agreement
was obtained. The amount of deposited C was computed from the amount of
deposited Be assuming that the Be/C ratio arriving in the divertor is
the same as the Be/C ratio in the main chamber. On the basis of this
analysis we would expect there to be ∼0.4 kg of C deposited. This gives an average C deposition rate lower than during the MkIIA phase.
Original language | English |
---|---|
Pages (from-to) | 60 - 64 |
Number of pages | 5 |
Journal | Journal of Nuclear Materials |
Volume | 337-339 |
DOIs | |
Publication status | Published - 2005 |
MoE publication type | A1 Journal article-refereed |
Keywords
- divertor
- beryllium
- carbon based materials
- surface analysis
- JET
- fusion energy
- plasma
- ITER