Sensitivity of a coded-aperture telescope when used with a detector that under-samples the shadowgram

Details Sensitivity of a coded-aperture telescope when used with a detector that under-samples the shadowgram Sensitivity of a coded-aperture telescope when used with a detector that under-samples the shadowgram

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1948...36b&link_type=abstract

Proc. SPIE Vol. 1948, p. 36-43, Astroparticle Physics and Novel Gamma-Ray Telescopes, David B. Cline; Ed.

Physics

Scientific paper

The imaging properties of a gamma-ray telescope which employs a coded aperture in conjunction with a modular detection plane have been investigated. Gaps in the detection plane, which arise as a consequence of the design of the position sensitive detector used, produce artifacts in the deconvolved images. The effect is generally to reduce the signal to noise ratio for the detection of point sources. The application of an iterative image processing algorithm is shown to restore the image quality to that expected from an ideal detector.

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