A multiplex coding imaging spectrometer for X-ray astronomy

Details A multiplex coding imaging spectrometer for X-ray astronomy A multiplex coding imaging spectrometer for X-ray astronomy

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985esasp.239..277r&link_type=abstract

In ESA Proceedings of ESA Workshop on a Cosmic X-Ray Spectroscopy Mission p 277-281 (SEE N86-22461 12-89)

Astronomy and Astrophysics

Astronomy

Imaging Techniques, Multiplexing, X Ray Astronomy, X Ray Spectroscopy, Focal Plane Devices, Grazing Incidence, Grazing Incidence Telescopes, Systems Simulation, X Ray Telescopes

Scientific paper

A multiplex coding system associated with a solid state spectrometer Si(Li) to be placed at the focus of a grazing incidence telescope is described. The spectrometric and imaging functions are separated. The coding system consists of a movable mask with pseudo randomly distributed holes, located in the focal plane of the telescope. The pixel size lies in the range 100 to 200 microns. The close association of the coding system with an Si (Li) detector gives an imaging spectrometer combining the good efficiency (50% between 0.5 and 10 keV) and energy resolution (90 to 160 eV) of solid state spectrometers with the spatial resolution of the mask. Simulations and results obtained with a laboratory model are presented.

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