Characterization of laser-irradiated co-deposited layers on plasma facing components from a tokamak
2006 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. T123, 99-103 p.Article in journal (Refereed) Published
An experimental setup and ion diagnostic method for laser-induced fuel removal and decomposition of co-deposited layers on plasma facing components from tokamaks are described. Nd:YAG 3.5 ns pulse laser with a repetition rate of 10 Hz and single-pulse energy of up to 0.8J at 1.06 mu m has been used for irradiation of a graphite limiter tile from the TEXTOR tokamak. Comparative studies have been performed for a pure graphite plate as a reference target. Energy of emitted ions has been measured using a time-of-flight method. Early results show that laser pulses efficiently ablate the co-deposit removing both fuel species and heavy components such as Si, Ni, Cr, Fe and W present in the layers. Surface topography of the irradiated targets is also presented.
Place, publisher, year, edition, pages
2006. Vol. T123, 99-103 p.
tritium retention, jet, removal, tftr, codeposits, composite, divertor, tiles
IdentifiersURN: urn:nbn:se:kth:diva-15618DOI: 10.1088/0031-8949/2006/T123/013ISI: 000236918600014ScopusID: 2-s2.0-33750701403OAI: oai:DiVA.org:kth-15618DiVA: diva2:333660
QC 20100525 QC 20111003. Conference: 5th International Workshop and Summer School on Plasma Physics. POLAND. JUN 06-10, 2005 2010-08-052010-08-052011-10-03Bibliographically approved