He+ ions damage on optical coatings for solar missions

D. Bacco; A. J. Corso; P. Zuppella; F. Gerlin; R. Böttger; E. Napolitani; E. Tessarolo; M. Nardello; S. Zuccon; M. G. Pelizzo

doi:10.1117/12.2178496

12 May 2015 He+ ions damage on optical coatings for solar missions

D. Bacco, A. J. Corso, P. Zuppella, F. Gerlin, R. Böttger, E. Napolitani, E. Tessarolo, M. Nardello, S. Zuccon, M. G. Pelizzo

Author Affiliations +

Proceedings Volume 9510, EUV and X-ray Optics: Synergy between Laboratory and Space IV; 95100B (2015) https://doi.org/10.1117/12.2178496
Event: SPIE Optics + Optoelectronics, 2015, Prague, Czech Republic

Abstract

Single layer thin films have been exposed to low energy alpha particles (4keV). Implanted doses are equivalent to those accumulated in 1, 2, 4 and 6 years of ESA Solar Orbiter mission operation. Two ions fluences have been considered. In order to change the total dose accumulated, for each ion flux the time of exposure was varied. Reflectance in the visible spectral range has been measured prior and after implantation. Results show no significant change in performances in gold and palladium, while a small decrease in performances is observed in iridium. The implantation rate does not seem to affect the experiment.

Citation Download Citation

D. Bacco, A. J. Corso, P. Zuppella, F. Gerlin, R. Böttger, E. Napolitani, E. Tessarolo, M. Nardello, S. Zuccon, and M. G. Pelizzo "He+ ions damage on optical coatings for solar missions", Proc. SPIE 9510, EUV and X-ray Optics: Synergy between Laboratory and Space IV, 95100B (12 May 2015); https://doi.org/10.1117/12.2178496

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