Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-06-04
Astronomy and Astrophysics
Astrophysics
5 pages, submitted to the proceedings of the GAMMA 2001 High Energy Astrophysics Symposium (Baltimore, April 4-6, 2001)
Scientific paper
10.1063/1.1419519
The development of CdZnTe detectors with an orthogpnal coplanar anode structure has important implications for future astrophysical instrumentation. As electron-only devices, like pixel detectors, coplanar anode strip detectors can be fabricated in the thickness required to be effective for photons with energies in excess of 500 keV. Unlike conventional double-sided strip detectors, the coplanar anode strip detectors require segmented contacts and signal processing electronics on only one surface. This facilitates the fabrication of closely-packed large area arrays that will be required for the next generation of coded aperture imagers. These detectors provide both very good energy resolution and sub-millimeter spatial resolution (in all three spatial dimensions) with far fewer electronic channels than are required for pixel detectors. Here we summarize results obtained from prototype detectors having a thickness of 5 mm and outline a concept for large area applications.
Hamel Louis-Andre
Macri John R.
McClish Mickel
McConnell Mark L.
Ryan Russell Jr.
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