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Proceedings Paper

Filters and calibration sources for the soft x-ray spectrometer (SXS) instrument on ASTRO-H
Author(s): C. P. de Vries; J. W. den Herder; E. Costantini; H. Aarts; P. Lowes; J. S. Kaastra; R. Kelley; K. Gendreau; Z. Arzoumanian; R. Koenecke; D. Haas; S. Paltani; K. Mitsuda; N. Y. Yamasaki
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Paper Abstract

The SXS instrument is the Soft X-ray micro-calorimeter Spectrometer planned for the Japanese ASTRO-H satellite, scheduled to be launched in 2014. In this paper, the trade off and modelling for the X-ray absorption and optical blocking filters will be described. The X-ray absorption filter will optimize the efficiency for high spectral resolution observations for bright sources at higher energies (notably around the Fe-K line at 6.4 KeV), given the characteristics of the instrument while the optical blocking filter allows X-ray observations of optically bright sources. For this mission a novel type of on-off-switchable X-ray calibration source, using light sensitive photo-cathodes, is being developed, which will be used for gain calibration and contamination monitoring. These sources will be used by both the SXS and SXI (Soft X-ray Imager) instruments and have the capability to be pulsed at millisecond intervals. Details of these sources will also be discussed.

Paper Details

Date Published: 29 July 2010
PDF: 9 pages
Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 773213 (29 July 2010); doi: 10.1117/12.855880
Show Author Affiliations
C. P. de Vries, SRON Netherlands Institute for Space Research (Netherlands)
J. W. den Herder, SRON Netherlands Institute for Space Research (Netherlands)
E. Costantini, SRON Netherlands Institute for Space Research (Netherlands)
H. Aarts, SRON Netherlands Institute for Space Research (Netherlands)
P. Lowes, SRON Netherlands Institute for Space Research (Netherlands)
J. S. Kaastra, SRON Netherlands Institute for Space Research (Netherlands)
R. Kelley, NASA Goddard Space Flight Ctr. (United States)
K. Gendreau, NASA Goddard Space Flight Ctr. (United States)
Z. Arzoumanian, NASA Goddard Space Flight Ctr. (United States)
R. Koenecke, NASA Goddard Space Flight Ctr. (United States)
D. Haas, ISDC Data Ctr. for Astrophysics (Switzerland)
S. Paltani, ISDC Data Ctr. for Astrophysics (Switzerland)
K. Mitsuda, Japan Aerospace Exploration Agency (Japan)
N. Y. Yamasaki, Japan Aerospace Exploration Agency (Japan)


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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