An optical test and alignment method for the XMM mirror module

Details An optical test and alignment method for the XMM mirror module An optical test and alignment method for the XMM mirror module

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989spie.1159..625s&link_type=abstract

IN: EUV, X-ray, and gamma-ray instrumentation for astronomy and atomic physics; Proceedings of the Meeting, San Diego, CA, Aug.

Astronomy and Astrophysics

Astronomy

Astronomical Photometry, Charge Coupled Devices, Laser Beams, Mirrors, X Ray Astronomy, X Ray Telescopes, Actuators, Cosmic Rays, European Space Agency, Feedback Control, Iterative Solution, Satellite Imagery, X Ray Sources

Scientific paper

The X-ray multimirror (XMM) system, designed by the European Space Agency to perform spectroscopy of cosmic X-ray sources in an energy range from 0.1 keV to 10 keV, is described. It consists of three identical mirror modules of Wolter I type, each containing 58 individual mirrors made of carbon-fiber-reinforced plastic and covered by a thin reflecting Au- or Ir-layer. The mirror shell was optically tested and aligned by means of a scanning laser beam test setup and an on-line evaluation method which determined the focal position and the image quality. The image quality was 88.7 arcsec initially and 30.9 after the final adjustment. The adjustment was done by means of 12 actuators acting radially on roundness errors. The image quality, obtained by means of the adjustment process, is reported to correspond fairly well with the one obtained by means of the mirror shell kept round artificially.

Affiliated with

Also associated with

No associations

Rating

An optical test and alignment method for the XMM mirror module does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with An optical test and alignment method for the XMM mirror module, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An optical test and alignment method for the XMM mirror module will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1618938