Production and Performance of the InFOC μS 20 -40-keV Graded Multilayer Mirror

Details Production and Performance of the InFOC μS 20 -40-keV Graded Multilayer Mirror Production and Performance of the InFOC μS 20 -40-keV Graded Multilayer Mirror

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003apopt..42.1856b&link_type=abstract

Applied Optics OT, vol. 42, Issue 10, pp.1856-1866

Physics

Optics

1

Astronomical Telescopes, Optical Multilayers, Mirrors, X-Ray Optics, Reflectivity, Artificial Satellites

Scientific paper

The International Focusing Optics Collaboration for μCrab Sensitivity (InFOC μS) balloonborne hard x-ray telescope incorporates graded Pt /C multilayers replicated onto segmented Al foils to obtain the significant effective area at energies previously inaccessible to x-ray optics. Reflectivity measurements of individual foils demonstrate our capability to produce a mass quantity of multilayered foils with a rms roughness of 0.5 nm. The effective area of the completed mirror is 78 and 22 cm2 at 20 and 40 keV, respectively. The measured half-power diameter is 2.0 +/- 0.5 arc min (90% confidence). The successful completion of this mirror demonstrates its applicability to future x-ray telescopes such as Constellation-X.

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