Effect of mirror curvature on the angular resolution of silicon pore optics

Arne S. Jegers, Desiree Della Monica Ferreira, Erik Bergbäck Knudsen, Sonny Massahi, Sara Svendsen, Peter Lindquist Henriksen, Nis Christian Gellert, Giorgia Sironi, Daniele Spiga, Ivo Ferreira, Brian Shortt, Marcos Bavdaz

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Silicon Pore Optics are a novel technology for focusing high-energy photons, where pairs of mirror plates stacked into mirror modules. This paper presents a study of the angular resolution of SPO mirror assemblies, using a selection of sagittal mirror curvatures. Results were achieved by ray-tracing the different configurations of the mirror with the ray tracing software SPORT, or Silicon Pore Optics Ray Tracer, using an observation of the Crab Nebula originally obtained by Chandra. It is found that a true Wolter geometry most closely reproduces the original image, while geometries with a conic approximation on either their primary or secondary mirrors create the most diffuse image. A geometry with conic approximations on both primary and secondary mirrors falls in between the two extremes.

Original languageEnglish
Title of host publicationProceedings of SPIE : Optics for EUV, X-Ray, and Gamma-Ray Astronomy X
EditorsStephen L. O'Dell, Jessica A. Gaskin, Giovanni Pareschi
Number of pages8
PublisherSPIE - International Society for Optical Engineering
Publication date2021
Article number118220F
ISBN (Electronic)9781510644823
Publication statusPublished - 2021
EventSPIE Optical Engineering + Applications 2021 - San Diego, United States
Duration: 1 Aug 20215 Aug 2021


ConferenceSPIE Optical Engineering + Applications 2021
Country/TerritoryUnited States
CitySan Diego
SeriesProceedings of SPIE - The International Society for Optical Engineering


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