@inproceedings{4115a27c7dd947748b0e64ce4f1c4e8e,
title = "Optical design and performance simulations for the 1.49 keV beamline of the BEaTriX X-ray facility",
abstract = "The BEaTriX (Beam Expander Testing X-ray) facility, now operational at INAF-Brera Astronomical Observatory, will represent a cornerstone in the acceptance roadmap of Silicon Pore Optics (SPO) mirror modules, and will so contribute to the final angular resolution of the ATHENA X-ray telescope. By expansion and collimation of a microfocus X-ray source via a paraboloidal mirror, a monochromation stage, and an asymmetric crystal, BEaTriX enables the full-aperture illumination of an SPO mirror module with a parallel, monochromatic, and broad (140 mm ´ 60 mm) X-ray beam. The beam then propagates in a 12 m vacuum range to image the point spread function of the mirror module, directly on a focal plane camera. Currently the 4.51 keV beamline, based on silicon crystals, is operational in BEaTriX. A second beamline at 1.49 keV, which requires a separate paraboloidal mirror and organic crystals (ADP) for beam expansion, is being realized. As for monochromators, the current design is based on asymmetric quartz crystals. In this paper, we show the current optical design of the 1.49 keV beamline and the optical simulations carried out to predict the achievable performances in terms of beam collimation, intensity, and uniformity. In the next future, the simulation activity will allow us to determine manufacturing and alignment tolerances for the optical components. Additional presentation content can be accessed on the supplemental content page.",
keywords = "BEaTriX, X-ray test facility, Optical design, Optical simulations, Beam expander, ADP",
author = "D. Spiga and B. Salmaso and S. Basso and C. Pelliciari and C. Ferrari and R. Lolli and M. Ghigo and G. Sironi and G. Vecchi and V. Cotroneo and G. Pareschi and G. Tagliaferri and D. Sisana and V. Burwitz and S. Rukdee and G. Hartner and T. M{\"u}ller and T. Schmidt and A. Langmeier and {Della Monica Ferreira}, D. and N. Gellert and S. Massahi and M. Bavdaz and I. Ferreira",
year = "2023",
doi = "10.1117/12.2690353",
language = "English",
volume = "12777",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "Society of Photo-Optical Instrumentation Engineers",
editor = "Minoglou, {Kyriaki } and Karafolas, {Nikos } and Cugny, {Bruno }",
booktitle = "Proceedings of SPIE",
note = "International Conference on Space Optics, ICSO 2022 ; Conference date: 03-10-2022 Through 07-10-2022",
}