Multiplex Coding Imaging Spectrometers For X-Ray Astronomy

R. Rocchia; J. Y. Deachamps; L. Koch-Miramond; A. Tarrius; N. Coron; G. Artzner; G. Dambier; G. Jegoudez; J. Leblanc

doi:10.1117/12.966565

14 July 1986 Multiplex Coding Imaging Spectrometers For X-Ray Astronomy

R. Rocchia, J. Y. Deachamps, L. Koch-Miramond, A. Tarrius, N. Coron, G. Artzner, G. Dambier, G. Jegoudez, J. Leblanc

Proceedings Volume 0597, X-Ray Instrumentation in Astronomy; (1986) https://doi.org/10.1117/12.966565
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France

Abstract

This paper describes a multiplex image coding system designed to be associated with a non-imaging spectrometer (Si(Li) or thermal spectrometer). The resulting instrument, an imaging spectrometer, could be used as a focal instrument for an astronomical grazing incidence telescope. The coding system consists in a movable mask with pseudo randomly distributed holes, located in the telescope focal plane. The pixel size lies in the range 100-200 microns. The close association of the coder with a Si(Li) spectrometer or with an X-ray bolometer gives an imaging spectrometer combining the good efficiency ( >50% between 0.1 and 10 keV) and energy resolution ( ΔE~100 eV for Si(Li),~ 10 eV (expected) for a bolometer) of these energy dispersive devices, with the spatial resolution of the mask.

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R. Rocchia, J. Y. Deachamps, L. Koch-Miramond, A. Tarrius, N. Coron, G. Artzner, G. Dambier, G. Jegoudez, and J. Leblanc "Multiplex Coding Imaging Spectrometers For X-Ray Astronomy", Proc. SPIE 0597, X-Ray Instrumentation in Astronomy, (14 July 1986); https://doi.org/10.1117/12.966565

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