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http://hdl.handle.net/20.500.12386/27402
Titolo: | Thin fused silica shells for high-resolution and large collecting area x-ray telescopes (like Lynx/XRS) | Autori: | CIVITANI, Marta Maria Hołyszko, J. VECCHI, Gabriele BASSO, Stefano Citterio, O. GHIGO, Mauro PARESCHI, Giovanni Parodi, G. Incorvaia, S. |
Data pubblicazione: | 2017 | Titolo del volume in cui è pubblicato il poster: | Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII | Curatore/i del volume in cui è pubblicato il contributo: | O'Dell, Stephen; Pareschi, Giovanni | Serie: | PROCEEDINGS OF SPIE | Numero: | 10399 | Da pagina:: | 103990W | Abstract: | The implementation of an X-ray mission with high imaging capabilities, similar to those achieved with Chandra (< 1 arc second Half Energy Width, HEW), but with a much larger throughput (2.5 m<SUP>2</SUP> effective area @1 keV), represents a compelling request by the scientific community. To this end the Lynx/XRS mission is being studied in USA, with the participation of international partners. In order to figure out the challenging technological task of the mirror fabrication, different approaches are considered, based on monolithic and segmented shells. Starting from the experience done on the glass prototypal shell realized in the past years, the direct polishing of thin (2 mm thick) fused silica monolithic shells is being investigated as a possible solution. A temporary stiffening structure is designed to support the shell during the figuring and polishing operations and to manage the handling up to its integration in the telescope structure. After the grinding and the polishing phases, in order to achieve the required surface accuracy, a final ion beam figuring correction is foreseen. In this paper, we present the technological process and the results achieved so far on a prototypal shell under development. | Titolo del convegno: | Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII | Luogo del convegno: | San Diego, California, United States | Periodo del convegno: | 6-10 agosto, 2017 | URI: | http://hdl.handle.net/20.500.12386/27402 | ISSN: | 0277-786X | ISBN: | 9781510612556 9781510612563 |
DOI: | 10.1117/12.2275263 | Bibcode ADS: | 2017SPIE10399E..0WC | Fulltext: | open |
È visualizzato nelle collezioni: | 3.01 Contributi in Atti di convegno |
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