A survey of hard X-ray imaging concepts currently proposed for viewing solar flaresSeveral 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.
Document ID
19920042593
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Campbell, Jonathan W. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Davis, John M. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Emslie, A. G. (Alabama, University Huntsville, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: X-ray/EUV Optics for Astronomy, Microscopy, Polarimetry and Projection Lithography