BEaTriX (Beam Expander Testing X-ray facility) for testing ATHENA's SPO modules: advancement status

Salmaso, B.; Basso, S.; Ghigo, M.; Giro, E.; Pareschi, G.; Spiga, D.; Tagliaferri, G.; Vecchi, G.; Pelliciari, Carlo; Burwitz, V.; Río, Manuel Sánchez del; Ferrari, C.; Zappettini, A.; Uslenghi, M.; Fiorini, M.; Parodi, Giancarlo; Ayre, Mark; Bavdaz, Marcos; Ferreira, Ivo; Wille, Eric

doi:10.1117/12.2535997

Cited by 7 publications

(4 citation statements)

References 19 publications

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“…To host the two beam lines, a study for the foundation was carried out by the Italian engineering company BCV Progetti srl. Aim of the investigation was to design a stable foundation that would isolate the facility from vibrations due to the environment, anthropic-noise sources, and vacuum pumps (BCV did a similar study to design the BEaTriX#1 foundation [24,25]), Inputs for this analysis were obtained from a vibration measurement campaign carried out at the cosine premises, where BEaTriX#2 would be operated. The tolerance analysis of the alignment of the optical components drove the requirement.…”

Section: The Foundationsmentioning

confidence: 99%

The BEaTriX x-ray facility at work: activities and future development

Salmaso,

Spiga,

Basso

et al. 2023

Optics for EUV, X-Ray, and Gamma-Ray Astronomy XI

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The BEaTriX (Beam Expander Testing X-ray) facility has completed the commissioning phase. This unique compact facility – that occupies an area of 8 x 14 m2 - provides a large (170 mm × 60 mm) collimated (⪅ 2.5 arcsec) monochromatic beam at the energy of 4.51 keV. Its concept is based on the combination of a microfocus x-ray source, a parabolic mirror, and a set of silicon crystals, one of which is asymmetrically cut with respect to the lattice planes. The tests have proven the BEaTriX capability to perform the acceptance tests for Point Spread Function and Effective Area of the NewAthena Silicon Pore Optics Mirror Modules (MM) with a 3 MM/day throughput. The second BEaTriX beamline at the x-ray of 1.49 keV is currently being developed. The optomechanical design, and simulation of alignment tolerances have been completed. The parabolic mirror is being polished at INAF-OAB, on the basis of the experience matured with producing the parabolic mirror for the 4.51 keV beam line. The crystals for the monochromator (Quartz 10-10) and the beam expander (ADP 101) are being procured. Differently from the 4.51 keV beam line, all three crystals for the 1.49 keV are asymmetrically cut, as a special design has been adopted to guarantee the specifications. Owing to the good results obtained by BEaTriX at the INAF labs in Italy, a feasibility study is also ongoing to replicate the facility with a similar design at cosine B.V. in The Netherlands (where the MMs will be produced) for measuring the MMs SPO at 1.49 and 6.4 keV before and after the vibrational tests.

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Section: The Foundationsmentioning

confidence: 99%

The BEaTriX x-ray facility at work: activities and future development

Salmaso,

Spiga,

Basso

et al. 2023

Optics for EUV, X-Ray, and Gamma-Ray Astronomy XI

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“…A new type of beamline is being built by the Osservatorio Astronomico di Brera (OAB) near Milano in Italy. This facility, BEaTriX [41] (figure 11 mid right), will provide a collimated X-ray beam of sufficient size to illuminate a complete SPO mirror module, and is intended to be used as a mirror acceptance testing and calibration facility.…”

Section: Virtual Conference 30 March-2 April 2021mentioning

confidence: 99%

The Athena x-ray optics development and accommodation

Bavdaz¹,

Wille²,

Ayre³

et al. 2021

International Conference on Space Optics — ICSO 2020

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The ATHENA mission, under study and preparation by ESA as its second Large-class science mis sio n, req u ires t h e largest X-ray optics ever flown, building on a novel optics technology based on mono crystalline silicon. Referred t o as Silicon Pore Optics technology (SPO), the optics is highly modular and benefits from technology s pin-in from the semiconductor industry. The telescope aperture of about 2.5 meters is populated by 600 mirror modules, accurat ely coaligned to produce a common focus.

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“…Following a number of updates over years, [8][9] [10] BEaTriX has been finalized (Figure 1) in its design [11] and, owing to a number of grants (ESA, AHEAD, ASI, INAF), it is now in advanced status of completion at INAF-Brera, Merate. [12] BEaTriX will generate a 17 cm ´ 6 cm parallel (» 2 arcsec) beam at either 1.49 keV or 4.51 keV. The beam will probe the SPO MMs that will be delivered from the production site, generating its X-ray focal spot on a CCD camera at a 12 m distance, and enabling the selection of the most performing modules to be aligned optically and integrated into the mirror assembly at the nearby company Media Lario.…”

Section: Mbar)mentioning

confidence: 99%

Performance simulations for the ground-based, expanded-beam x-ray source BEaTriX

Spiga¹,

Salmaso

Basso

et al. 2021

Advances in X-Ray/Euv Optics and Components XVI

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The BEaTriX (Beam Expander Testing X-ray) facility, being assembled at INAF-Brera Astronomical Observatory, will represent an important step in the acceptance roadmap of Silicon Pore Optics (SPO) mirror modules, and so ensure the final angular resolution of the ATHENA X-ray telescope. A paraboloidal mirror, manufactured at INAF-Brera, will provide a collimated X-ray beam to a monochromating system and to a beam expansion unit, enabling the full illumination of the mirror modules under test with a broad, highly monochromatic, and parallel X-ray beam. Such a beam will be used to directly diagnose SPO modules in their focusing performances. This requires, indeed, the expanded beam to have a divergence smaller than the expected angular resolution of the modules under test. This condition is subject, in turn, to the optical quality and to the alignment of the optical components. Aiming at establishing the final angular resolution that can be reached and the respective fabrication/positioning tolerances, we have been dealing with a comprehensive set of optical simulations. Modeling based on wave optics and ray-tracing was carried out to predict the collimation performances of the paraboloidal mirror, including the effect of surface errors obtained from metrology. Ray-tracing routines were subsequently employed to simulate the full beamline. This paper reports the simulation results and the methodologies we have adopted.

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BEaTriX (Beam Expander Testing X-ray facility) for testing ATHENA's SPO modules: advancement status

Cited by 7 publications

References 19 publications

The BEaTriX x-ray facility at work: activities and future development

The BEaTriX x-ray facility at work: activities and future development

The Athena x-ray optics development and accommodation

Performance simulations for the ground-based, expanded-beam x-ray source BEaTriX

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