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Conference Paper

High-reflectance, high-durability coatings for IACT mirrors

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons30481

Foerster,  Andreas
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

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Foerster, A., Canestrari, R., Chadwick, P., Knappy, A., & CTA Consortium (2011). High-reflectance, high-durability coatings for IACT mirrors. In Proceedings of the 32nd International Cosmic Ray Conference (pp. 133-137). Retrieved from http://www.ihep.ac.cn/english/conference/icrc2011/paper/proc/content_v9.htm.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-4AC9-3
Abstract
Increased reflectance and longterm durability are major goals in the development of mirrors for CTA, the future observatory for very-high energy gamma-ray astronomy. Multilayer protective coatings on top of an aluminium coating and especially purely dielectric coatings show an increase in reflectance by 5 to 10% and a significantly better resistance to environmental impact simulations in the laboratory than aluminium coatings with a single SiO2 protective layer as are used in present day experiments.