Fiber laser cleaning of metal mirror surfaces for optical diagnostic systems of the ITER
Journal Article
·
· Physics of Atomic Nuclei
- National Research Nuclear University MEPhI (Russian Federation)
- State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research (Russian Federation)
The results of experimental studies into efficiency of removal of films with a complex composition from metal mirrors by pulsed fiber laser irradiation are presented. It is shown that the initial reflectivity of optical elements can be restored by the selection of modes of irradiation impacting the surface with the sputtered film. Effective cleaning is performed by radiation with a power density lower than 10{sup 7} W/cm{sup 2}. The removal of contaminations at such a relatively low power density occurs in a solid phase, owing to which the thermal effect on the mirror is insignificant.
- OSTI ID:
- 22471969
- Journal Information:
- Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 10 Vol. 78; ISSN 1063-7788; ISSN PANUEO
- Country of Publication:
- United States
- Language:
- English
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