Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984spie..445..394c&link_type=abstract
IN: Instrumentation in astronomy V; Proceedings of the Fifth Meeting, London, England, September 7-9, 1983 (A85-25360 10-89). Be
Astronomy and Astrophysics
Astronomy
Gamma Ray Astronomy, Gamma Ray Telescopes, Spaceborne Telescopes, Angular Resolution, Energy Spectra, Image Resolution, Proportional Counters, Scintillation Counters, Spectral Sensitivity
Scientific paper
It is pointed out that the design of the gamma-ray imaging astronomical telescope is based on an actively shielded inorganic scintillator which provides the position sensitive detection plane (PSD). An instrument is considered with a sodium iodide PSD which is a space adaptation of the gamma-camera widely used in medical applications. The PSD is surrounded by inorganic (NaI) scintillators which provide the active shielding against the background gamma-ray and particle fluxes encountered in space. The use of a coded aperture mask will enable two dimensional gamma-ray images of the sky to be generated with a resolution of a few arc minutes. Attention is given to the position sensitive detectors, the coded aperture mask, the anticoincidence system, the electronic system, the instrument background, and the sensitivity of the instrument.
Charalambous P. M.
Dean Anthony J.
Engel A. R.
Simnett George
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