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Proceedings Paper

Payload study activities on the International X-ray Observatory
Author(s): D. Martin; N. Rando; D. Lumb; P. Verhoeve; T. Oosterbroek; L. Puig; G. Saavedra; M. Bavdaz; P. Gondoin
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Paper Abstract

The International X-ray Observatory (IXO) is an L class mission candidate within the science programme Cosmic Vision 2015-2025 of the European Space Agency, with a planned launch by 2020. IXO is an international cooperative project, pursued by ESA, JAXA and NASA. By allowing astrophysical observations between 100 eV and 40 keV using a very large effective collecting area mirror and state-of-the art instruments, IXO would represent the new generation X-ray observatory, following the XMM-Newton, Astro-H and Chandra heritage. The IXO mission concept is based on a single aperture telescope with an external diameter of about 3.5 m and a focal length of 20 m. The focal plane consists of a fixed and a moveable instrument platform (FIP and MIP respectively). The model payload consists of a suite of five instruments which can each be located at the telescope's focus by the MIP, these are: 1. a wide field imager (WFI) based on a silicon DEPFET array; 2. a Hard-X-ray Imager (HXI), which will be integrated together with the WFI; 3. an X-ray microcalorimeter spectrometer (XMS); 4. an X-ray Polarimeter camera (X-POL) based on a gas cell with integrated anode array; 5. a High-Time Resolution Spectrometer (HTRS) based on a silicon drift detector array. In addition, the FIP will carry a grating spectrometer (XGS) mounted in a fixed position and which will allow simultaneous observations with the on-axis instrument. This paper provides a summary of the preliminary results achieved during the assessment activities presently ongoing at ESA. Whereas we will provide a brief overview on the overall spacecraft design, we will focus on the payload description, characteristics, the technology used and the accommodation on the instrument platform.

Paper Details

Date Published: 29 July 2010
PDF: 12 pages
Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77321D (29 July 2010); doi: 10.1117/12.857549
Show Author Affiliations
D. Martin, European Space Research and Technology Ctr. (Netherlands)
N. Rando, European Space Research and Technology Ctr. (Netherlands)
D. Lumb, European Space Research and Technology Ctr. (Netherlands)
P. Verhoeve, European Space Research and Technology Ctr. (Netherlands)
T. Oosterbroek, European Space Research and Technology Ctr. (Netherlands)
L. Puig, European Space Research and Technology Ctr. (Netherlands)
G. Saavedra, European Space Research and Technology Ctr. (Netherlands)
M. Bavdaz, European Space Research and Technology Ctr. (Netherlands)
P. Gondoin, European Space Research and Technology Ctr. (Netherlands)


Published in SPIE Proceedings Vol. 7732:
Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray
Monique Arnaud; Stephen S. Murray; Tadayuki Takahashi, Editor(s)

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