Coded aperture imaging in X- and gamma-ray astronomy

Details Coded aperture imaging in X- and gamma-ray astronomy Coded aperture imaging in X- and gamma-ray astronomy

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ssrv...45..349c&link_type=abstract

Space Science Reviews (ISSN 0038-6308), vol. 45, no. 3-4, 1987, p. 349-403.

Astronomy and Astrophysics

Astronomy

98

Astronomical Photography, Gamma Ray Astronomy, X Ray Astronomy, Fourier Transformation, Image Processing, Image Reconstruction, Modulation Transfer Function, Signal To Noise Ratios

Scientific paper

The principles and design considerations of coded aperture imaging systems for high energy astronomy in the X-ray to gamma-ray range are reviewed. A mask consisting of an array of opaque and transparent elements set between the source fluxes and a position-sensitive detection plane is employed for image formation. Direct deconvolution techniques are discussed. Coded aperture mask designs considered include Fresnel zone plates, random pinhole masks, nonredundant and uniformly redundant arrays, and pseudonoise product masks. Various astronomical applications of coded aperture imaging systems are discussed, including the University of Birmingham coded mask X-ray telescope, the Energetic X-ray Imaging and Timing Experiment intended for the XTE satellite, and the ZEBRA coded mask telescope.

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