Physics – Optics
Scientific paper
Feb 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991spie.1343..359c&link_type=abstract
IN: X-ray/EUV optics for astronomy, microscopy, polarimetry, and projection lithography; Proceedings of the Meeting, San Diego,
Physics
Optics
Solar Flares, Solar X-Rays, Spaceborne Telescopes, X Ray Imagery, X Ray Telescopes, Collimators, Fresnel Diffraction, Image Processing, Point Spread Functions, Solar Instruments
Scientific paper
Several approaches to imaging hard X-rays emitted from solar flares have been proposed. These include the fixed modulation collimator, the rotating modulation collimator, the spiral fresnel zone pattern, and the redundantly coded aperture. These techniques are under consideration for use in the Solar Maximum '91 balloon program, the Japanese Solar-A satellite, the Controls, Astrophysics, and Structures Experiment in Space, and the Pinhole/Occulter Facility and are outlined and discussed in the context of preliminary results from numerical modeling and the requirements derived from current ideas as to the expected hard X-ray structures in the impulsive phase of solar flares. Preliminary indications are that all of the approaches are promising, but each has its own unique set of limitations.
Campbell Jonathan W.
Davis John M.
Emslie Gordon A.
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