JIM: a joint integrated module of glass x-ray optics for astronomical telescopes

Proserpio, L.; Breunig, Elias; Friedrich, Péter; Winter, Anita; Rohé, Christian; Eder, Josef; Burwitz, V.; Hartner, Gisela; Menz, Benedikt; Civitani, M.; Basso, S.; Buratti, Enrico

doi:10.1117/12.2187995

Cited by 1 publication

(1 citation statement)

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“…Lightweight modular optics are being developed at ESA/ESTEC and Cosine 3 since 2004 on the basis of the SPO (Silicon Pore Optics) technology, 4 currently the baseline for the ATHENA optics. SGO (Slumped Glass Optics) are also developed in parallel at INAF/OAB 5 and MPE 6 (Max Planck Institute for Extraterrestrial Physics, Garching) as a possible backup technology. However, in both cases a very high number of XOUs (>1000 for the SPO case) have to be produced in an industrial environment, and accounting for unavoidable alignment errors, the individual XOUs must have an individual HEW that is better than 5 arcsec.…”

Section: Introductionmentioning

confidence: 99%

BEaTriX, expanded x-ray beam facility for testing modular elements of telescope optics: an update

et al. 2015

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We present in this paper an update on the design of BEaTriX (Beam Expander Testing X-ray facility), an X-ray apparatus to be realized at INAF/OAB and that will generate an expanded, uniform and parallel beam of soft X-rays. BEaTriX will be used to perform the functional tests of X-ray focusing modules of large X-ray optics such as those for the ATHENA X-ray observatory, using the Silicon Pore Optics (SPO) as a baseline technology, and Slumped Glass Optics (SGO) as a possible alternative. Performing the tests in X-rays provides the advantage of an in-situ, at-wavelength quality control of the optical modules produced in series by the industry, performing a selection of the modules with the best angular resolution, and, in the case of SPOs, there is also the interesting possibility to align the parabolic and the hyperbolic stacks directly under X-rays, to minimize the aberrations. However, a parallel beam with divergence below 2 arcsec is necessary in order to measure mirror elements that are expected to reach an angular resolution of about 4 arcsec, since the ATHENA requirement for the entire telescope is 5 arcsec. Such a low divergence over the typical aperture of modular optics would require an X-ray source to be located in a several kilometers long vacuum tube. In contrast, BEaTriX will be compact enough (5 m x 14 m) to be housed in a small laboratory, will produce an expanded X-ray beam 60 mm x 200 mm broad, characterized by a very low divergence (1.5 arcsec HEW), strong polarization, high uniformity, and X-ray energy selectable between 1.5 keV and 4.5 keV. In this work we describe the BEaTriX layout and show a performance simulation for the X-ray energy of 4.5 keV.

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Section: Introductionmentioning

confidence: 99%