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  Manufacturing and testing of the X-ray collimating mirror for the BEaTriX facility

Vecchi, G., Cotroneo, V., Ghigo, M., Basso, S., Salmaso, B., Sironi, G., et al. (2021). Manufacturing and testing of the X-ray collimating mirror for the BEaTriX facility. In Optics for EUV, X-Ray, and Gamma-Ray Astronomy X. doi:10.1117/12.2594581.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000A-9DCA-2 Version Permalink: https://hdl.handle.net/21.11116/0000-000A-9DCB-1
Genre: Conference Paper

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 Creators:
Vecchi, G., Author
Cotroneo, V., Author
Ghigo, M., Author
Basso, S., Author
Salmaso, B., Author
Sironi, G., Author
Spiga, D., Author
Conconi, P., Author
Pareschi, G., Author
Tagliaferri, G., Author
Burwitz, V.1, Author           
Hartner, G.1, Author           
Müller, T.2, Author           
Rukdee, S.3, Author           
Schmidt, T.1, Author           
Christensen, F., Author
Ferreira, D. D. M., Author
Gellert, N. C., Author
Massahi, S., Author
Bavdaz, M., Author
Ferreira, I., Author more..
Affiliations:
1High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society, ou_159890              
2Center for Astrochemical Studies at MPE, MPI for Extraterrestrial Physics, Max Planck Society, ou_1950287              
3Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society, ou_159895              

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 Abstract: The BEaTriX (Beam Expander Testing X-ray) facility under construction at INAF-Brera Astronomical Observatory aims at performing the acceptance tests of the Silicon Pore Optics mirror modules of the ATHENA (Advanced Telescope for High-ENergy Astrophysics) X-ray observatory. The facility implements a grazing-incidence collimating mirror that, together with a monochromator and a beam expander stages based on crystals, enables the full X-ray illumination of the mirror modules under test. We present the development and test of the collimating mirror, a paraboloid sector having an optical surface of 400 mm ´ 60 mm and sagittal radii of about 155 mm. The ground and lapped optics made of HOQ 310 fused quartz was corrected by bonnet polishing. In this paper, we report on the smoothing of mid-to-high spatial frequency error by pitch-tool polishing process, and on the correction of residual surface shape errors by ion-beam figuring process, both performed at INAF-Brera Astronomical Observatory. We present the X-ray test campaigns carried out on the mirror at PANTER facility, before and after coating it with a Pt layer via magnetron sputtering at DTU Space. The results provide an overview of the mirror performance in terms of angular resolution pre- and post-coating deposition.

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 Dates: 2021-08-23
 Publication Status: Published online
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 Identifiers: DOI: 10.1117/12.2594581
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Title: SPIE OPTICAL ENGINEERING + APPLICATIONS
Place of Event: San Diego, CA
Start-/End Date: 2021-08-01 - 2021-08-05

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Title: Optics for EUV, X-Ray, and Gamma-Ray Astronomy X
Source Genre: Proceedings
 Creator(s):
O'Dell, Stephen L. , Author
Gaskin, Jessica A., Author
Pareschi, Giovanni , Author
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Pages: - Volume / Issue: 11822 Sequence Number: - Start / End Page: - Identifier: -

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Title: Proceedings of SPIE
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Publ. Info: SPIE-INT SOC OPTICAL ENGINEERING
Pages: - Volume / Issue: - Sequence Number: 118220N Start / End Page: - Identifier: ISSN: 0277-786X