MARGIE -- A Balloon-Borne Instrument for High Angular Resolution Hard X-Ray Astronomy

Details MARGIE -- A Balloon-Borne Instrument for High Angular Resolution Hard X-Ray Astronomy MARGIE -- A Balloon-Borne Instrument for High Angular Resolution Hard X-Ray Astronomy

May 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...186.1702c&link_type=abstract

American Astronomical Society, 186th AAS Meeting, #17.02; Bulletin of the American Astronomical Society, Vol. 27, p.831

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MARGIE (Minute-of-Arc Resolution Gamma ray Imaging Experiment) will be a new balloon-borne telescope to observe 30 - 300 keV gamma ray sources with excellent angular resolution (1(/prime) ). The instrument will use a coded aperture mask and a fine-grained position-sensitive central detector. The mask will be 0.5 mm thick tungsten, with 0.5 mm pixels at a distance of 1.5 m from the central detector, giving an angular resolution of 1(/prime) and a fully coded field of view of 12(/circ) . The central detector will be based on either cesium iodide microfiber arrays coupled to a large area silicon CCD readout array, or cadmium zinc telluride. Prototype testing of both CZT and the CsI/CCD combination have been carried out, and results will be shown, together with expected sensitivity and instrument performance.

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