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Proceedings Paper

The focal plane assembly for the Athena X-ray Integral Field Unit instrument
Author(s): B. D. Jackson; H. van Weers; J. van der Kuur; R. den Hartog; H. Akamatsu; A. Argan; S. R. Bandler; M. Barbera; D. Barret; M. P. Bruijn; J. A. Chervenak; J. Dercksen; F. Gatti; L. Gottardi; D. Haas; J.-W. den Herder; C. A. Kilbourne; M. Kiviranta; T. Lam-Trong; B.-J. van Leeuwen; C. Macculi; L. Piro; S. J. Smith
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Paper Abstract

This paper summarizes a preliminary design concept for the focal plane assembly of the X-ray Integral Field Unit on the Athena spacecraft, an imaging microcalorimeter that will enable high spectral resolution imaging and point-source spectroscopy. The instrument's sensor array will be a ~ 3840-pixel transition edge sensor (TES) microcalorimeter array, with a frequency domain multiplexed SQUID readout system allowing this large-format sensor array to be operated within the thermal constraints of the instrument's cryogenic system. A second TES detector will be operated in close proximity to the sensor array to detect cosmic rays and secondary particles passing through the sensor array for off-line coincidence detection to identify and reject events caused by the in-orbit high-energy particle background. The detectors, operating at 55 mK, or less, will be thermally isolated from the instrument cryostat's 2 K stage, while shielding and filtering within the FPA will allow the instrument's sensitive sensor array to be operated in the expected environment during both on-ground testing and in-flight operation, including straylight from the cryostat environment, low-energy photons entering through the X-ray aperture, low-frequency magnetic fields, and high-frequency electric fields.

Paper Details

Date Published: 19 July 2016
PDF: 8 pages
Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 99052I (19 July 2016); doi: 10.1117/12.2232544
Show Author Affiliations
B. D. Jackson, SRON Netherlands Institute for Space Research (Netherlands)
H. van Weers, SRON Netherlands Institute for Space Research (Netherlands)
J. van der Kuur, SRON Netherlands Institute for Space Research (Netherlands)
R. den Hartog, SRON Netherlands Institute for Space Research (Netherlands)
H. Akamatsu, SRON Netherlands Institute for Space Research (Netherlands)
A. Argan, Istituto Nazionale di Astrofisica, Istituto di Astrofisica e Planetologia Spaziali Roma (Italy)
S. R. Bandler, NASA Goddard Space Flight Ctr. (United States)
INAF - Osservatorio Astronomico di Palermo (Italy)
M. Barbera, Univ. degli Studi di Palermo (Italy)
D. Barret, Institut de Recherche en Astrophysique et Planétologie (France)
M. P. Bruijn, SRON Netherlands Institute for Space Research (Netherlands)
J. A. Chervenak, NASA Goddard Space Flight Ctr. (United States)
J. Dercksen, SRON Netherlands Institute for Space Research (Netherlands)
F. Gatti, Univ. di Genova (Italy)
L. Gottardi, SRON Netherlands Institute for Space Research (Netherlands)
D. Haas, SRON Netherlands Institute for Space Research (Netherlands)
J.-W. den Herder, SRON Netherlands Institute for Space Research (Netherlands)
C. A. Kilbourne, NASA Goddard Space Flight Ctr. (United States)
M. Kiviranta, VTT Technical Research Ctr. of Finland Ltd. (Finland)
T. Lam-Trong, Ctr. National d'Etudes Spatiales (France)
B.-J. van Leeuwen, SRON Netherlands Institute for Space Research (Netherlands)
C. Macculi, Istituto di Astrofisica e Planetologia Spaziali (Italy)
L. Piro, Istituto di Astrofisica e Planetologia Spaziali (Italy)
S. J. Smith, NASA Goddard Space Flight Ctr. (United States)


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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