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Proceedings Paper

The X-ray Integral Field Unit (X-IFU) for Athena
Author(s): Laurent Ravera; Didier Barret; Jan Willem den Herder; Luigi Piro; Rodolphe Clédassou; Etienne Pointecouteau; Philippe Peille; Francois Pajot; Monique Arnaud; Claude Pigot; Lionel Duband; Christophe Cara; Roland H. den Hartog; Luciano Gottardi; Hiroki Akamatsu; Jan van der Kuur; Henk J. van Weers; Jelle de Plaa; Claudia Macculi; Simone Lotti; Guido Torrioli; Flavio Gatti; Luca Valenziano; Marco Barbera; Xavier Barcons; María Teresa Ceballos; Lourdes Fàbrega; José Miguel Mas-Hesse; Mathew J. Page; Phillip R. Guttridge; Richard Willingale; Stéphane Paltani; Ludovic Genolet; Enrico Bozzo; Gregor Rauw; Etienne Renotte; Jörn Wilms; Christian Schmid
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Paper Abstract

Athena is designed to implement the Hot and Energetic Universe science theme selected by the European Space Agency for the second large mission of its Cosmic Vision program. The Athena science payload consists of a large aperture high angular resolution X-ray optics (2 m2 at 1 keV) and twelve meters away, two interchangeable focal plane instruments: the X-ray Integral Field Unit (X-IFU) and the Wide Field Imager. The X-IFU is a cryogenic X-ray spectrometer, based on a large array of Transition Edge Sensors (TES), offering 2:5 eV spectral resolution, with ~5" pixels, over a field of view of 50 in diameter. In this paper, we present the X-IFU detector and readout electronics principles, some elements of the current design for the focal plane assembly and the cooling chain. We describe the current performance estimates, in terms of spectral resolution, effective area, particle background rejection and count rate capability. Finally, we emphasize on the technology developments necessary to meet the demanding requirements of the X-IFU, both for the sensor, readout electronics and cooling chain.

Paper Details

Date Published: 24 July 2014
PDF: 13 pages
Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91442L (24 July 2014); doi: 10.1117/12.2055884
Show Author Affiliations
Laurent Ravera, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
Didier Barret, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
Jan Willem den Herder, SRON Netherlands Institute for Space Research (Netherlands)
Luigi Piro, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Rodolphe Clédassou, Ctr. National d'Études Spatiales (France)
Etienne Pointecouteau, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
Philippe Peille, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
Francois Pajot, Observatoire Midi-Pyrénées, IRAP, CNRS, Univ. de Toulouse (France)
Institut d'Astrophysique Spatiale (France)
Monique Arnaud, CEA-IRFU (France)
Claude Pigot, CEA-IRFU (France)
Lionel Duband, CEA-INAC (France)
Christophe Cara, CEA-IRFU (France)
Roland H. den Hartog, SRON Netherlands Institute for Space Research (Netherlands)
Luciano Gottardi, SRON Netherlands Institute for Space Research (Netherlands)
Hiroki Akamatsu, SRON Netherlands Institute for Space Research (Netherlands)
Jan van der Kuur, SRON Netherlands Institute for Space Research (Netherlands)
Henk J. van Weers, SRON Netherlands Institute for Space Research (Netherlands)
Jelle de Plaa, SRON Netherlands Institute for Space Research (Netherlands)
Claudia Macculi, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Simone Lotti, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Guido Torrioli, Istituto di Fotonica e Nanotecnologie, CNR (Italy)
Flavio Gatti, INFN, Univ. degli Studi di Genova (Italy)
Luca Valenziano, INAF - IASF Bologna (Italy)
Marco Barbera, Univ. degli Studi di Palermo (Italy)
Xavier Barcons, Instituto de Física de Cantabria, CSIC, Univ. de Cantabria (Spain)
María Teresa Ceballos, Instituto de Física de Cantabria, CSIC, Univ. de Cantabria (Spain)
Lourdes Fàbrega, Institut de Ciència de Materials de Barcelona, CSIC (Spain)
José Miguel Mas-Hesse, Instituto Nacional de Técnica Aeroespacial, CSIC (Spain)
Mathew J. Page, Mullard Space Science Lab. (United Kingdom)
Phillip R. Guttridge, Mullard Space Science Lab. (United Kingdom)
Richard Willingale, Univ. of Leicester (United Kingdom)
Stéphane Paltani, Univ. de Genève (Switzerland)
Ludovic Genolet, Univ. de Genève (Switzerland)
Enrico Bozzo, Univ. de Genève (Switzerland)
Gregor Rauw, Univ. de Liège (Belgium)
Etienne Renotte, Univ. de Liège (Belgium)
Jörn Wilms, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
Christian Schmid, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)


Published in SPIE Proceedings Vol. 9144:
Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Jan-Willem A. den Herder; Mark Bautz, Editor(s)

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