Imaging at soft X-ray wavelengths with high-gain microchannel plate detector systems

Details Imaging at soft X-ray wavelengths with high-gain microchannel plate detector systems Imaging at soft X-ray wavelengths with high-gain microchannel plate detector systems

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spie..691...35t&link_type=abstract

IN: X-ray imaging II; Proceedings of the Meeting, San Diego, CA, Aug. 21, 22, 1986 (A88-12711 02-74). Bellingham, WA, Society of

Computer Science

Performance

Astronomical Spectroscopy, Hubble Space Telescope, Microchannel Plates, X Ray Imagery, Cesium Iodides, Image Resolution, Pixels, Quantum Efficiency

Scientific paper

Multianode microchannel array (MAMA) detector systems with formats of 256 x 1024 pixels and active areas of 6 x 26 mm are now under evaluation at visible, UV and soft X-ray wavelengths. Very-large-format versions of the MAMA detectors with formats of 2048 x 2048 pixels and active areas of 52 x 52 mm are under development for use in the NASA Goddard Space Telescope Imaging Spectrograph (STIS). Open-structure versions of these detectors with Cs I photocathodes can provide a high-resolution imaging capability at EUV and soft X-ray wavelengths and can deliver a maximum count rate from each array in excess of 10 to the 6th counts/s. In addition, these detector systems have the unique capability to determine the arrival time of a detected photon to an accuracy of 100 ns or better. The construction, mode of operation, and performance characteristics of the MAMA detectors are described, and the program for the development of the very-large-format detectors is outlined.

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