The X-ray Integral Field Unit (X-IFU) for Athena

Marco Barbera, Flavio Gatti, Christophe Cara, Henk J. Van Weers, Claude Pigot, Simone Lotti, Ludovic Genolet, Enrico Bozzo, Christian Schmid, Rodolphe Clédassou, Guido Torrioli, Richard Willingale, Philippe Peille, Christian Schmid, Stéphane Paltani, Hiroki Akamatsu, Jörn Wilms, Jörn Wilms, Jelle De Plaa, Etienne RenotteJan Van Der Kuur, Luca Valenziano, Luciano Gottardi, Claudia Macculi, Lionel Duband, Laurent Ravera, Etienne Pointecouteau, Jan Willem Den Herder, María Teresa Ceballos, Roland H. Den Hartog, José Miguel Mas-Hesse, Gregor Rauw, Francois Pajot, Luigi Piro, Didier Barret, Jörn Wilms, Marco Barbera, Monique Arnaud, Phillip R. Guttridge, Mathew J. Page, Xavier Barcons

Risultato della ricerca: Otherpeer review

36 Citazioni (Scopus)


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.
Lingua originaleEnglish
Numero di pagine13
Stato di pubblicazionePublished - 2014

All Science Journal Classification (ASJC) codes

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  • ???subjectarea.asjc.3100.3104???
  • ???subjectarea.asjc.1700.1706???
  • ???subjectarea.asjc.2600.2604???
  • ???subjectarea.asjc.2200.2208???


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