Global erosion and deposition patterns in JET with the ITER-like wall
2015 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 463, 157-161 p.Article in journal (Refereed) Published
A set of Be and W tiles removed after the first ITER-like wall campaigns (JET-ILW) from 2011 to 2012 has been analysed. The results indicate that the primary erosion site is in the main chamber (Be) as in previous carbon campaigns (JET-C). In particular the limiters tiles near the mid-plane are eroded probably during the limiter phases of discharges. W is found at low concentrations on all plasma-facing surfaces of the vessel indicating deposition via plasma transport initially from the W divertor and from main chamber W-coated tiles; there are also traces of Mo (used as an interlayer for these coatings). Deposited films in the inner divertor have a layered structure, and every layer is dominated by Be with some W and O content.
Place, publisher, year, edition, pages
2015. Vol. 463, 157-161 p.
Other Materials Engineering
IdentifiersURN: urn:nbn:se:kth:diva-172687DOI: 10.1016/j.jnucmat.2015.01.038ISI: 000358467200024ScopusID: 2-s2.0-84937738794OAI: oai:DiVA.org:kth-172687DiVA: diva2:850231
QC 201509012015-09-012015-08-272015-09-01Bibliographically approved