BEaTriX, an expanded and parallel X-ray beam to measure the modular X-ray optic of the ATHENA telescope
-
Bianca Salmaso1
- Stefano Basso1
- Daniele Spiga1
- Mauro Ghigo1
- Gabriele Vecchi1
- Giorgia Sironi1
- Vincenzo Cotroneo1
- Giovanni Pareschi1
- Gianpiero Tagliaferri1
- Davide Sisana1
- Mauro Fiorini2
- Michela Uslenghi2
- Claudio Ferrari3
- Manuel Sanchez del Rio4
- Giancarlo Parodi5
- Vadim Bruwitz6
- Desiree della Monica Ferreira7
- Sonny Massahi7
- Finn Christensen7
- Marcos Bavdaz8
- Ivo Ferreira8
- Max Collon9
- Giuseppe Vacanti9
- Nicolas M. Barriere9
- 1. INAF Osservatorio Astronomico Brera
- 2. INAF-IASF
- 3. IMEM-CNR
- 4. ESRF
- 5. BCV
- 6. MPE
- 7. DTU
- 8. ESA
- 9. cosine
Description
BEaTriX is a unique facility developed at the INAF-Osservatorio Astronomico Brera (Merate, Italy)
to test ATHENA’s X-ray mirror.
It can perform the X-ray acceptance tests (PSF and Aeff) of the ATHENA Silicon Pore Optics Mirror
Modules (MM) at their production rate (2 MM/day), at 4.51 and 1.49 keV. The X-ray beam
approximates the one created by an astronomical source (collimated and large), re-created in a small
lab (about 9 m x 18 m) thanks to an innovative design. A microfocus X-ray source produces a
divergent beam which is conditioned (collimated, monochromatic, and expanded) by a parabolic
mirror and a set of silicon crystals, one of which is asymmetrically cut with respect to the lattice
planes. The first beam line, at the energy of 4.51 keV, has already been developed. The large
monochromatic beam is collimated to < 3 arcsec, with a flux of 60 photons/s/cm2. Its size (170 mm x
60 mm) is sufficiently large to cover the entrance pupil of the MMs. The PSF and Aeff of the first
optically representative MM were successfully measured.
Notes
Files
2022-ATHENA scientific conf-Salmaso-poster.pdf
Files
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