Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Erosion and redeposition of wall material in controlled fusion devices
KTH, Superseded Departments, Alfvén Laboratory.ORCID iD: 0000-0001-9901-6296
2002 (English)In: Vacuum, ISSN 0042-207X, E-ISSN 1879-2715, Vol. 67, no 04-mar, 399-408 p.Article in journal (Refereed) Published
Abstract [en]

Processes of erosion and redeposition and their impact on plasma facing materials in devices for magnetically confined fusion are discussed. Volatile molecules formed in the erosion process are partly pumped out but the majority of species released from the wall components returns to the surface causing the modification of its morphology. Prompt redeposition and redeposition after global transport reduce the gross erosion at any surface. Detailed analysis shows that erosion and deposition can coexist on otherwise erosion-dominated surfaces due to local inhomogenities. The erosion yield of redeposited material of sub-monolayer thickness significantly differs from that observed for thick targets. On deposition dominated areas one observes the formation of thick co-deposits containing a mixture of trapped fuel atoms (hydrogen isotopes) and species removed originally from the wall. This leads to a large and long-term fuel accumulation (tritium inventory) in a device. Reduced mechanical integrity of such layers stimulates their flaking and peeling-off if a critical thickness has been reached. This, in turn, results in the formation of hydrogen-rich dust particles.

Place, publisher, year, edition, pages
2002. Vol. 67, no 04-mar, 399-408 p.
Keyword [en]
magnetic fusion, erosion, deposition, material transport, textor-94, yields
Identifiers
URN: urn:nbn:se:kth:diva-21991DOI: 10.1016/S0042-207X(02)00238-5ISI: 000178803500017OAI: oai:DiVA.org:kth-21991DiVA: diva2:340689
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Rubel, Marek J.

Search in DiVA

By author/editor
Rubel, Marek J.
By organisation
Alfvén Laboratory
In the same journal
Vacuum

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 20 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf