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Proceedings Paper

Onboard data-processing architecture of the soft X-ray imager (SXI) on NeXT satellite
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Paper Abstract

NeXT is the X-ray satellite proposed for the next Japanese space science mission. While the satellite total mass and the launching vehicle are similar to the prior satellite Astro-E2, the sensitivity is much improved; it requires all the components to be lighter and faster than previous architecture. This paper shows the data processing architecture of the X-ray CCD camera system SXI (Soft X-ray Imager), which is the top half of the WXI (Wide-band X-ray Imager) of the sensitivity in 0.2-80keV. The system is basically a variation of Astro-E2 XIS, but event extraction speed is much faster than it to fulfill the requirements coming from the large effective area and fast exposure period. At the same time, data transfer lines between components are redesigned in order to reduce the number and mass of the wire harnesses that limit the flexibility of the component distribution.

Paper Details

Date Published: 29 September 2004
PDF: 8 pages
Proc. SPIE 5501, High-Energy Detectors in Astronomy, (29 September 2004); doi: 10.1117/12.551136
Show Author Affiliations
Masanobu Ozaki, Institute of Space and Astronautical Science/JAXA (Japan)
Tadayasu Dotani, Institute of Space and Astronautical Science/JAXA (Japan)
Hiroshi Tsunemi, Osaka Univ. (Japan)
Kiyoshi Hayashida, Osaka Univ. (Japan)
Takeshi Go Tsuru, Kyoto Univ. (Japan)

Published in SPIE Proceedings Vol. 5501:
High-Energy Detectors in Astronomy
Andrew D. Holland, Editor(s)

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