Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989sxra.nasar....d&link_type=abstract
In its Solar X-ray Astronomy Sounding Rocket Program 6 p (SEE N90-10796 01-88)
Astronomy and Astrophysics
Astronomy
Grazing Incidence Telescopes, Image Analysis, Solar Corona, X Ray Astronomy, Focal Plane Devices, High Resolution, Solar Physics, Space Observations (From Earth), Spatial Resolution
Scientific paper
X-ray astronomy, both solar and celestial, has many needs for high spatial resolution observations which have to be performed with electronic detectors. If the resolution is not to be detector limited, plate scales in excess of 25 microns arc/sec, corresponding to focal lengths greater than 5 m, are required. In situations where the physical size is restricted, the problem can be solved by the use of grazing incidence relay optics. A system was developed which employs externally polished hyperboloid-hyperboloid surfaces to be used in conjunction with a Wolter-Schwarzschild primary. The secondary is located in front of the primary focus and provides a magnification of 4, while the system has a plate scale of 28 microns arc/sec and a length of 1.9 m. The design, tolerance specification, fabrication and performance at visible and X-ray wavelengths of this optical system are described.
Chase Richard C.
Davis John M.
Krieger Allen S.
Silk Kevin J.
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