Image analysis of the AXAF VETA-I x-ray mirror
Abstract
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 raytraced 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.
- Publication:
-
Multilayer and Grazing Incidence X-Ray/EUV Optics for Astronomy and Projection Lithography
- Pub Date:
- January 1993
- DOI:
- 10.1117/12.140548
- Bibcode:
- 1993SPIE.1742..136F
- Keywords:
-
- Image Analysis;
- Paraboloid Mirrors;
- Test Facilities;
- X Ray Astrophysics Facility;
- X Ray Imagery;
- Grazing Incidence;
- High Resolution;
- Point Spread Functions;
- X Ray Detectors;
- Optics