Glass and silicon foils for X-ray space telescope mirrors

0437087 - ASÚ 2015 CZ eng J - Journal Article
Míka, M. - Pína, L. - Landová, M. - Jankovský, O. - Kačerovský, R. - Švéda, L. - Havlíková, R. - Hudec, René - Maršíková, V. - Inneman, A.
Glass and silicon foils for X-ray space telescope mirrors.
Ceramics - Silikáty. Roč. 55, č. 4 (2011), s. 418-424. ISSN 0862-5468. E-ISSN 1804-5847
Institutional research plan: CEZ:AV0Z10030501
Keywords : glass * silicon * X-ray
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 0.382, year: 2011

Unique observations delivered by space X-ray imaging telescopes have been significantly contributing to important discoveries of current astrophysics. The telescopes' most crucial part is a high throughput, heavily nested mirror array reflecting X-rays and focusing them to a detector Future astronomical projects on large X-ray telescopes require novel materials and technologies for the construction of the reflecting mirrors. The future mirrors must be lightweight and precisely shaped to achieve large collecting area with high angular resolution of a few arc sec. The new materials and technologies must be cost-effective as well.Currently, the most promising materials are glass or silicon foils which are commercially produced on a large scale. A thermal forming process was used for the precise shaping of these foils. The forced and free slumping of the foils was studied in the temperature range of hot plastic deformation and the shapes obtained by the different slumping processes were compared.
Permanent Link: http://hdl.handle.net/11104/0240663