Image analysis of the AXAF VETA-I x ray mirror

Details Image analysis of the AXAF VETA-I x ray mirror Image analysis of the AXAF VETA-I x ray mirror

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992veta.nasa.....f&link_type=abstract

In its VETA-I X Ray Test Analysis 16 p (SEE N93-26183 09-74)

Astronomy and Astrophysics

Astrophysics

Image Analysis, Mirrors, X Ray Astrophysics Facility, Astigmatism, Distortion, Pinholes, Scanners

Scientific paper

Initial core scan data of the VETA-I x-ray mirror proved disappointing, showing considerable unpredicted image structure and poor measured FWHM. 2-D core scans were performed, providing important insight into the nature of the distortion. Image deconvolutions using a ray traced model PSF was performed successfully to reinforce our conclusion regarding the origin of the astigmatism. A mechanical correction was made to the optical structure, and the mirror was tested successfully (FWHM 0.22 arcsec) as a result.

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