Change search
ReferencesLink to record
Permanent link

Direct link
Theoretical and experimental studies on molybdenum and stainless steel mirrors cleaning by high repetition rate laser beam
Show others and affiliations
2011 (English)In: Fusion engineering and design, ISSN 0920-3796, Vol. 86, no 9-11, 1728-1731 p.Article in journal (Refereed) Published
Abstract [en]

Our studies were aimed to determine the damage threshold of molybdenum (Mo) and stainless steel (SS) mirrors to provide the maximum fluence which the mirror surfaces could withstand without affecting their reflectivity properties. A high repetition rate ytterbium fiber laser (20 kHz, 1.06 mu m, 120 ns) was applied. The experimental single-pulse and multiple-pulse damage thresholds were obtained. To calculate damage thresholds, a 1D analytical model which takes into account the temperature dependent absorptance and multiple-pulse damage based on plastic deformations accumulation was applied. The experimental damage thresholds and the theoretical ones are in a good agreement. Cleaning tests with the contaminated mirrors exposed in JET have been performed.

Place, publisher, year, edition, pages
2011. Vol. 86, no 9-11, 1728-1731 p.
Keyword [en]
Laser cleaning, Damage thresholds, Molybdenum, Stainless steel, Diagnostic mirror
National Category
Fusion, Plasma and Space Physics
URN: urn:nbn:se:kth:diva-58824DOI: 10.1016/j.fusengdes.2010.12.068ISI: 000297824000037ScopusID: 2-s2.0-80054050558OAI: diva2:474156
QC 20120109Available from: 2012-01-09 Created: 2012-01-09 Last updated: 2012-01-09Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Rubel, Marek
By organisation
Fusion Plasma Physics
In the same journal
Fusion engineering and design
Fusion, Plasma and Space Physics

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: 21 hits
ReferencesLink to record
Permanent link

Direct link