비의류제품

the mirrors for the extreme ultraviolet explorer

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 474
flight 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 aa rms
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