Change search
ReferencesLink to record
Permanent link

Direct link
Wall conditioning by microwave generated plasmas in a toroidal magnetic field
KTH, Superseded Departments, Alfvén Laboratory.ORCID iD: 0000-0001-9901-6296
Show others and affiliations
2001 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 290, 1180-1184 p.Article in journal (Refereed) Published
Abstract [en]

The suitability of microwave generated plasmas for the purpose of wall coating in purr toroidal magnetic fields is investigated in a special test bench. We report on the results of layer deposition using methane plasmas as a systematic case study for future boron or silicon deposition by other gases (B2H6, SiH4). The produced coatings can be characterized as polymer-like soft a-C:D-films with a high DIG-ratio due to the low energy of particles hitting the wall. Neutral hydrocarbon radicals could be identified to play the major role for film deposition. On the other hand, strong re-erosion induced by deuterium ions is observed in regions with plasma-wall contact. The spatial homogeneity and the characteristics of produced coatings are presented and observations are correlated with measured plasma parameters. The use of pulsed plasmas for wall conditioning is compared with steady-state discharges,

Place, publisher, year, edition, pages
2001. Vol. 290, 1180-1184 p.
Keyword [en]
a-C : D, wall coating, ECR, future fusion devices, erosion, films
URN: urn:nbn:se:kth:diva-20475DOI: 10.1016/S0022-3115(00)00671-1ISI: 000167676700235OAI: diva2:339170
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Rubel, Marek J.
By organisation
Alfvén Laboratory
In the same journal
Journal of Nuclear Materials

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 24 hits
ReferencesLink to record
Permanent link

Direct link