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Proceedings Paper

The filter wheel and filters development for the X-IFU instruments onboard Athena
Author(s): E. Bozzo; M. Barbera; L. Genolet; S. Paltani; M. Sordet; G. Branduardi-Raymont; G. Rauw; S. Sciortino; D. Barret; J. W. Den Herder
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Paper Abstract

Athena is the large mission selected by ESA in 2013 to investigate the science theme “Hot and Energetic Universe” and presently scheduled for launch in 2028. One of the two instruments located at the focus of the 12 m-long Athena telescope is the X-ray Integral Field Unit (X-IFU). This is an array of TES microcalorimeters that will be operated at temperatures of 50 mK in order to perform high resolution spectroscopy with an energy resolution down to 2.5 eV at energies < 7 keV. In order to cope with the large dynamical range of X-ray fluxes spanned by the celestial objects Athena will be observing, the X-IFU will be equipped with a filter wheel. This will allow the user to fine tune the instrument set-up based on the nature of the target, thus optimizing the scientific outcomes of the observation. A few positions of the filter wheel will also be used to host a calibration source and to allow the measurement of the instrument intrinsic background.

Paper Details

Date Published: 18 July 2016
PDF: 8 pages
Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 990561 (18 July 2016); doi: 10.1117/12.2232328
Show Author Affiliations
E. Bozzo, Univ. of Geneva (Switzerland)
M. Barbera, UNIPA (Italy)
L. Genolet, Univ. of Geneva (Switzerland)
S. Paltani, Univ. of Geneva (Switzerland)
M. Sordet, Univ. of Geneva (Switzerland)
G. Branduardi-Raymont, Univ. College London (United Kingdom)
G. Rauw, Univ. de Liège (Belgium)
S. Sciortino, INAF-Osservatorio Astronomico di Palermo (Italy)
D. Barret, Univ. de Toulouse (France)
CNRS, IRAP (France)
J. W. Den Herder, SRON, Netherlands Institute for Space Research (Netherlands)

Published in SPIE Proceedings Vol. 9905:
Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray
Jan-Willem A. den Herder; Tadayuki Takahashi; Marshall Bautz, Editor(s)

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