Physics
Scientific paper
Oct 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1948...75d&link_type=abstract
Proc. SPIE Vol. 1948, p. 75-81, Astroparticle Physics and Novel Gamma-Ray Telescopes, David B. Cline; Ed.
Physics
6
Scientific paper
Soft (gamma) -ray imaging instruments onboard currently operating astrophysical observatories attain angular resolutions on the order of 10 arc minutes using coded apertures with uniformly redundant arrays. In crowded regions, e.g. the galactic plane and center regions, unambiguous association with candidates at other wavelengths will often require improved localizations. We discuss a (gamma) -ray telescope design using 'chirp-Z' function codes and coarse position-sensitive image plane detectors. Image plane detector systems consisting of CsI scintillators and avalanche photodiodes are evaluated. Position sensitivity is achieved by either using a matrix of individual CsI/APD detectors or CsI scintillator rods. The aim is to design a narrow field-of-view telescope with sub-arcminute resolution to be flown on a small spacecraft.
Desai Upendra D.
Nemiroff Robert J.
Norris Jay P.
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