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Proceedings Paper

Improvements of design scheme and fabrication of the hard x-ray supermirror with broad bandwidth and flattop response
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Paper Abstract

We present our design scheme and fabrication of non-periodic multilayer with broad angular or energy bandwidth to demonstrate the potential application of such kind of multilayer for the hard X-ray telescopes. By using a proper optimization process, a non-periodic multilayer with boxcar angular response has been successfully designed. Such structure may provide 16% reflectivity with grazing angle from 1.0 to 1.5deg at energy point of 8.05keV. We also fabricated this structure by using our DC magnetron sputtering machine and tested it in our X-ray measurement system. The result shows a flat and smooth boxcar response in target band with standard deviation of 0.76%, which is convincing that such designing and fabrication processes we established can be applied to the supermirror with a flat boxcar response against the X-ray energy.

Paper Details

Date Published: 26 September 2013
PDF: 7 pages
Proc. SPIE 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI, 886114 (26 September 2013); doi: 10.1117/12.2023758
Show Author Affiliations
Youwei Yao, Nagoya Univ. (Japan)
Hideyo Kunieda, Nagoya Univ. (Japan)

Published in SPIE Proceedings Vol. 8861:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI
Stephen L. O'Dell; Giovanni Pareschi, Editor(s)

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