Design and advancement status of the Beam Expander Testing X-ray facility (BEaTriX)

D. Spiga; C. Pelliciari; B. Salmaso; L. Arcangeli; G. Bianucci; C. Ferrari; M. Ghigo; G. Pareschi; M. Rossi; G. Tagliaferri; G. Valsecchi; G. Vecchi; A. Zappettini

doi:10.1117/12.2238952

12 October 2016 Design and advancement status of the Beam Expander Testing X-ray facility (BEaTriX)

D. Spiga, C. Pelliciari, B. Salmaso, L. Arcangeli, G. Bianucci, C. Ferrari, M. Ghigo, G. Pareschi, M. Rossi, G. Tagliaferri, G. Valsecchi, G. Vecchi, A. Zappettini

Author Affiliations +

Proceedings Volume 9963, Advances in X-Ray/EUV Optics and Components XI; 996304 (2016) https://doi.org/10.1117/12.2238952
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

The BEaTriX (Beam Expander Testing X-ray facility) project is an X-ray apparatus under construction at INAF/OAB to generate a broad (200´60 mm2), uniform and low-divergent X-ray beam within a small lab (6´15 m²). BEaTriX will consist of an X-ray source in the focus a grazing incidence paraboloidal mirror to obtain a parallel beam, followed by a crystal monochromation system and by an asymmetrically-cut diffracting crystal to perform the beam expansion to the desired size. Once completed, BEaTriX will be used to directly perform the quality control of focusing modules of large X-ray optics such as those for the ATHENA X-ray observatory, based on either Silicon Pore Optics (baseline) or Slumped Glass Optics (alternative), and will thereby enable a direct quality control of angular resolution and effective area on a number of mirror modules in a short time, in full X-ray illumination and without being affected by the finite distance of the X-ray source. However, since the individual mirror modules for ATHENA will have an optical quality of 3-4 arcsec HEW or better, BEaTriX is required to produce a broad beam with divergence below 1-2 arcsec, and sufficient flux to quickly characterize the PSF of the module without being significantly affected by statistical uncertainties. Therefore, the optical components of BEaTriX have to be selected and/or manufactured with excellent optical properties in order to guarantee the final performance of the system. In this paper we report the final design of the facility and a detailed performance simulation.

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D. Spiga, C. Pelliciari, B. Salmaso, L. Arcangeli, G. Bianucci, C. Ferrari, M. Ghigo, G. Pareschi, M. Rossi, G. Tagliaferri, G. Valsecchi, G. Vecchi, and A. Zappettini "Design and advancement status of the Beam Expander Testing X-ray facility (BEaTriX)", Proc. SPIE 9963, Advances in X-Ray/EUV Optics and Components XI, 996304 (12 October 2016); https://doi.org/10.1117/12.2238952

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