Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1742...26z&link_type=abstract
In: Multilayer and grazing incidence X-ray/EUV optics for astronomy and projection lithography; Proceedings of the Meeting, San
Astronomy and Astrophysics
Astrophysics
Paraboloid Mirrors, Radiant Flux Density, Radiation Distribution, Test Facilities, X Ray Astrophysics Facility, X Ray Sources, Electron Impact, Microchannel Plates, Pinhole Cameras, Point Spread Functions, X Ray Tubes
Scientific paper
Intensity distribution measurements of the X-ray source for the AXAF VETA-I mirror test are reported. During the VETA-I test, microscope pictures were taken for each used anode immediately after it was brought out of the source chamber. The source sizes and the intensity distribution structures are shown. They are compared and shown to agree with the results from pinhole camera measurements. It is demonstrated that under operating conditions characteristic of the VETA-I test, all the source sizes have an FWHM of less than 0.45 mm. For a source of this size at 528 m away, the angular size to VETA is less than 0.17 arcsec, which is small compared to the on-ground VETA angular resolution. These results were crucial for VETA data analysis and for obtaining the on-ground and predicted in-orbit VETA point response function.
Fulton Melinda A.
Kellogg Edwin M.
Schwartz Daniel A.
Shao Yibo
Zhao Ping
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