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Proceedings Paper

Optimization of detectors positioning with respect to flying dynamics for future formation flight missions
Author(s): Marta Civitani; Sophie Djalal; Remi Chipaux
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Paper Abstract

In a X-ray telescope in formation flight configuration, the optics and the focal-plane detectors reside in two different spacecraft. The dynamics of the detector spacecraft (DSC) with respect to the mirror spacecraft (MSC, carrying the mirrors of the telescope) changes continuously the arrival positions of the photons on the detectors. In this paper we analyze this issue for the case of the SIMBOL-X hard X-ray mission, extensively studied by CNES and ASI until 2009 spring. Due to the existing gaps between pixels and between detector modules, the dynamics of the system may produce a relevant photometric effect. The aim of this work is to present the optimization study of the control-law algorithm with respect to the detector's geometry. As the photometric effect may vary depending upon position of the source image on the detector, the analysis-carried out using the simuLOS (INAF, CNES, CEA) simulation tool-is extended over the entire SIMBOL-X field of view.

Paper Details

Date Published: 31 August 2009
PDF: 12 pages
Proc. SPIE 7437, Optics for EUV, X-Ray, and Gamma-Ray Astronomy IV, 74370E (31 August 2009); doi: 10.1117/12.827974
Show Author Affiliations
Marta Civitani, INAF-OAB (Italy)
Sophie Djalal, CNES (France)
Remi Chipaux, CE-Saclay, CEA (France)

Published in SPIE Proceedings Vol. 7437:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy IV
Stephen L. O'Dell; Giovanni Pareschi, Editor(s)

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