Imaging photon-counting detector systems for ground-based and space applications

J. Gethyn Timothy

doi:10.1117/12.142012

1 April 1993 Imaging photon-counting detector systems for ground-based and space applications

J. Gethyn Timothy

Proceedings Volume 1982, Photoelectronic Detection and Imaging: Technology and Applications '93; (1993) https://doi.org/10.1117/12.142012
Event: Photoelectronic Detection and Imaging: Technology and Applications '93, 1993, Beijing, China

Abstract

A family of imaging photon-counting detector systems, the multi-anode microchannel arrays (MAMAs), are now under active development for use on a number of space astrophysics missions at far-ultraviolet and extreme-ultraviolet wavelengths. MAMA detector systems are currently being fabricated for use in instruments on the European Space Agency (ESA)/NASA Solar Heliospheric Observatory (SOHO) spacecraft and for a second generation instrument on the NASA/ESA Hubble Space Telescope. The components of the MAMA detector system consist of, (1) the open or sealed tube assembly containing the photocathode, the high-gain curved-channel microchannel plate, and the readout electrode array, and (2) the associated analog and digital electronics circuits. The configurations of the different MAMA detector systems are described in some detail and the use of custom application specific integrated circuits in the electronics is discussed. The performance characteristics of the MAMA detectors are described and compared with those of alternative imaging photon-counting detector systems. Examples of both ground-based data and flight data from sounding rockets are shown.

Citation Download Citation

J. Gethyn Timothy "Imaging photon-counting detector systems for ground-based and space applications", Proc. SPIE 1982, Photoelectronic Detection and Imaging: Technology and Applications '93, (1 April 1993); https://doi.org/10.1117/12.142012

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