The mirrors for the Extreme Ultraviolet ExplorerFlight mirrors for the Extreme Ultraviolet Explorer satellite are currently under fabrication. The grazing incidence metal mirrors are Wolter-Schwarzschild Type I and II and are figured by diamond turning. Imaging performance is excellent, with the figure after polishing for the best mirror being such that the full width-half maximum is 1.0 arc seconds and the half energy width is 8 arc seconds measured at visible wavelengths. Surface finish, as determined from scattering measurements in the extreme ultraviolet, is about 20 A rms.
Document ID
19870055436
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Finley, David S. (California Univ. Berkeley, CA, United States)
Green, James C. (California Univ. Berkeley, CA, United States)
Bowyer, Stuart (California Univ. Berkeley, CA, United States)
Malina, Roger F. (California, University Berkeley, United States)