20 September 2007 New fabrication methods of mirror substrate with multistage closed shell for high-throughput x-ray telescope
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Abstract
To improve angular resolution of high-throughput X-ray telescope using aluminum foil substrate, a multi-stage closed shell substrate is the key target of the development. For this purpose we have been developing two new fabrication methods to make very thin aluminum substrate. One is to use electron beam welding and the other is to use direct machining with lathe. By means of these methods, test conical mirror substrates were made and it was found that these had enough accurate shape as substrates to be used for epoxy replication.
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Yuzuru Tawara, Ikuya Sakurai, Tadashi Masuda, Tatsuharu Torii, Kouichi Suzui, Masaki Aoyama, Takuhiko Kondo, Nobuo Mizutani, "New fabrication methods of mirror substrate with multistage closed shell for high-throughput x-ray telescope", Proc. SPIE 6688, Optics for EUV, X-Ray, and Gamma-Ray Astronomy III, 668816 (20 September 2007); doi: 10.1117/12.733884; https://doi.org/10.1117/12.733884
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