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The silicon micro-strip detector plane for the LOFT/Wide Field Monitor
Goldwurm A., Ferrando P., Götz D., Laurent P., Lebrun F. et al
Dans Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray (Proceedings Volume) - Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, Amsterdam : Pays-Bas (2012) - http://hal.archives-ouvertes.fr/hal-00736586
Physique/Astrophysique/Instrumentation et méthodes pour l'astrophysique
Planète et Univers/Astrophysique/Instrumentation et méthodes pour l'astrophysique
The silicon micro-strip detector plane for the LOFT/Wide Field Monitor
A. Goldwurm1, 2, P. Ferrando1, 2, D. Götz1, 3, P. Laurent1, 2, F. Lebrun1, 2, O. Limousin1, 3, S. Basa4, W. Bertoli2, E. Delagnes1, Y. Dolgorouky2, O. Gevin1, A. Gros1, 3, C. Gouiffes1, 3, F. Jeanneau1, C. Lachaud2, M. Llored4, C. Olivetto2, G. Prévôt2, D. Renaud1, 3, J. Rodriguez1, 3, C. Rossin4, S. Schanne1, 3, S. Soldi1, 3, P. Varniere2
1 :  IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
2 :  APC - UMR 7164 - AstroParticule et Cosmologie
CNRS : UMR7164 – IN2P3 – Observatoire de Paris – Université Paris VII - Paris Diderot – CEA : DSM/IRFU
APC - UMR 7164, Université Paris Diderot, 10 rue Alice Domon et Léonie Duquet, case postale 7020, F-75205 Paris Cedex 13
3 :  AIM - UMR 7158 - Astrophysique Interactions Multi-échelles
CNRS : UMR7158 – INSU – Université Paris VII - Paris Diderot – CEA : DSM/IRFU
AIM - UMR 7158, Service d'astrophysique, CEA/Saclay, Orme des Merisiers F-91191 GIF SUR YVETTE CEDEX
4 :  LAM - Laboratoire d'Astrophysique de Marseille
CNRS : UMR7326 – INSU – Aix Marseille Université
Pôle de l'Étoile Site de Château-Gombert 38, rue Frédéric Joliot-Curie 13388 Marseille cedex 13
The main objective of the Wide Field Monitor (WFM) on the LOFT mission is to provide unambiguous detection of the high-energy sources in a large field of view, in order to support science operations of the LOFT primary instrument, the LAD. The monitor will also provide by itself a large number of results on the timing and spectral behaviour of hundreds of galactic compact objects, Active Galactic Nuclei and Gamma-Ray Bursts. The WFM is based on the coded aperture concept where a position sensitive detector records the shadow of a mask projected by the celestial sources. The proposed WFM detector plane, based on Double Sided micro-Strip Silicon Detectors (DSSD), will allow proper 2-dimensional recording of the projected shadows. Indeed the positioning of the photon interaction in the detector with equivalent fine resolution in both directions insures the best imaging capability compatible with the allocated budgets for this telescope on LOFT. We will describe here the overall configuration of this 2D-WFM and the design and characteristics of the DSSD detector plane including its imaging and spectral performances. We will also present a number of simulated results discussing the advantages that this configuration offers to LOFT. A DSSD-based WFM will in particular reduce significantly the source confusion experienced by the WFM in crowded regions of the sky like the Galactic Center and will in general increase the observatory science capability of the mission.

Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray (Proceedings Volume)
Communications avec actes
Tadayuki Takahashi; Stephen S. Murray; Jan-Willem A. den Herder; Shiro Ueno
Proceedings of SPIE

Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray

Astrophysics - Instrumentation and Methods for Astrophysics
ISBN: 9780819491442 Proceedings of SPIE, Vol. 8443, Paper No. 8443-89, 2012

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