Accès ouvert déclaré 2022 article

First light of BEaTriX, the new testing facility for the modular X-ray optics of the ATHENA mission

Stefano Basso, Bianca Salmaso, Daniele Spiga, M. Ghigo, G. Vecchi, Giorgia Sironi, Vincenzo Cotroneo, P. Conconi, Edoardo Maria Alberto Redaelli, Andrea G. Bianco, Giovanni Pareschi, Gianpiero Tagliaferri, Davide Sisana, Carlo Pelliciari, M. Fiorini, Salvatore Incorvaia, Michela C. A. Uslenghi, Lorenzo Paoletti, C. Ferrari, Riccardo Lolli, Andrea Zappettini, Manuel Sánchez del Río, Giancarlo Parodi, Vadim Burwitz, Surangkhana Rukdee, Gisela Hartner, Thomas G. Muller, Thomas Mitchell Schmidt, Andreas Langmeier, Desirée Della Monica Ferreira, Sonny Massahi, Nis C. Gellert, Finn E. Christensen, Marcos Bavdaz, I. S. Ferreira, Maximilien J. Collon, Giuseppe Vacanti, Nicolas M. Barrière

18Citations signalées, ce qui n’est pas une note de qualité

11Institutions déclarées

4Pays d’affiliation déclarés

Rattachement africain : it, fr, de, nl. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

Aims. The Beam Expander Testing X-ray facility (BEaTriX) is a unique X-ray apparatus now operated at the Istituto Nazionale di Astrofisica (INAF), Osservatorio Astronomico di Brera (OAB), in Merate, Italy. It has been specifically designed to measure the point spread function (PSF) and the effective area (EA) of the X-ray mirror modules (MMs) of the Advanced Telescope for High-ENergy Astrophysics (ATHENA), based on silicon pore optics (SPO) technology, for verification before integration into the mirror assembly. To this end, BEaTriX generates a broad, uniform, monochromatic, and collimated X-ray beam at 4.51 keV. The beam collimation is better than a few arcseconds, ensuring reliable tests of the ATHENA MMs, in their focus at a 12 m distance. Methods. In BEaTriX, a micro-focus X-ray source with a titanium anode is placed in the focus of a paraboloidal mirror, which generates a parallel beam. A crystal monochromator selects the 4.51 keV line, which is expanded to the final size by a crystal asymmetrically cut with respect to the crystalline planes. An in-house-built Hartmann plate was used to characterize the X-ray beam divergence, observing the deviation of X-ray beams from the nominal positions, on a 12-m-distant CCD camera. After characterization, the BEaTriX beam has the nominal dimensions of 170 mm × 60 mm, with a vertical divergence of 1.65 arcsec and a horizontal divergence varying between 2.7 and 3.45 arcsec, depending on the monochromator setting: either high collimation or high intensity. The flux per area unit varies from 10 to 50 photons s−1 cm−2 from one configuration to the other. Results. The BEaTriX beam performance was tested using an SPO MM, whose entrance pupil was fully illuminated by the expanded beam, and its focus was directly imaged onto the camera. The first light test returned a PSF and an EA in full agreement with expectations. As of today, the 4.51 keV beamline of BEaTriX is operational and can characterize modular X-ray optics, measuring their PSF and EA with a typical exposure of 30 min. Another beamline at 1.49 keV is under development and will be integrated into the current equipment. We expect BEaTriX to be a crucial facility for the functional test of modular X-ray optics, such as the SPO MMs for ATHENA.

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref: First light of BEaTriX, the new testing facility for the modular X-ray optics of the ATHENA mission
Date Crossref: 01/08/2022
Éditeur: EDP Sciences
Type: journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.

Où se fait cette recherche

Brera Astronomical Observatory pays non établi dans la notice
Institution
National Institute for Astrophysics pays non établi dans la notice
Organisme public
Politecnico di Milano pays non établi dans la notice
Université ou école supérieure
Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano pays non établi dans la notice
Organisme public
Osservatorio Astronomico di Padova pays non établi dans la notice
Structure de recherche
Institute of Materials for Electronics and Magnetism pays non établi dans la notice
Structure de recherche
European Synchrotron Radiation Facility pays non établi dans la notice
Structure de recherche
Arca Progetti (Italy) pays non établi dans la notice
Entreprise
Max Planck Institute for Extraterrestrial Physics pays non établi dans la notice
Structure de recherche
European Space Research and Technology Centre pays non établi dans la notice
Organisme public
Cosine (Netherlands) pays non établi dans la notice
Entreprise
Istituto Nazionale di Astrofisica (INAF) pays non établi dans la notice
Institution

Brera Astronomical Observatory, National Institute for Astrophysics et Politecnico di Milano, avec 9 autres affiliations.

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

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