A real-time electronic imaging system for solar X-ray observations from sounding rockets

Details A real-time electronic imaging system for solar X-ray observations from sounding rockets A real-time electronic imaging system for solar X-ray observations from sounding rockets

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ssi.....5...51d&link_type=abstract

Space Science Instrumentation, vol. 5, Dec. 1979, p. 51-71.

Computer Science

Sound

Imaging Techniques, Solar Corona, Solar X-Rays, Sounding Rockets, X Ray Astronomy, X Ray Imagery, Deflection, Design Analysis, Dynamic Response, Far Ultraviolet Radiation, Grazing Incidence Telescopes, Image Processing, Minicomputers, Real Time Operation, Space Shuttle Payloads, Video Equipment, Vidicons

Scientific paper

A real-time imaging system for displaying the solar coronal soft X-ray emission, focussed by a grazing incidence telescope, is described. The design parameters of the system, which is to be used primarily as part of a real-time control system for a sounding rocket experiment, are identified. Their achievement with a system consisting of a microchannel plate, for the conversion of X-rays into visible light, and a slow-scan vidicon, for recording and transmission of the integrated images, is described in detail. The system has a quantum efficiency better than 8 deg above 8 A, a dynamic range of 1000 coupled with a sensitivity to single photoelectrons, and provides a spatial resolution of 15 arc seconds over a field of view of 40 x 40 square arc minutes. The incident radiation is filtered to eliminate wavelengths longer than 100 A. Each image contains 3.93 x 10 to the 5th bits of information and is transmitted to the ground where it is processed by a mini-computer and displayed in real-time on a standard TV monitor.

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