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Design of Grazing-Incidence Broad-Band Multilayers for Hard X-Ray Reflectors |
| ZHANG Zhong;WANG Zhan-Shan;WANG Feng-Li; QIN Shu-Ji;CHEN Ling-Yan |
| Institute of Precision Optical Engineering, Department of Physics, Tongji University, Shanghai 200092 |
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| Cite this article: |
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ZHANG Zhong, WANG Zhan-Shan, WANG Feng-Li et al 2004 Chin. Phys. Lett. 21 2372-2375 |
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Abstract A new method of designing x-ray supermirrors with broad angular or energy response for use as coatings in x-ray optics is presented. The design is based on an analytical method with oversimplified analytical and semi-empirical formulae, and an extensive numerical method is used in the optimization design. A better initial multilayer is obtained with the former method and optimized with the latter method. In the optimization, a good design is achieved with much less computing time. In addition, the saturation effect due to the interfacial roughness in multilayer also emerges in the design of x-ray supermirrors with definite performances. The reflectivity of C/W x-ray supermirrors as a function of photon energy at the fixed grazing incident angle 0.5°is presented.
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07.60.Hv
07.85.Fv
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Published: 01 December 2004
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| PACS: |
07.60.Hv
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(Refractometers and reflectometers)
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07.85.Fv
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(X- and γ-ray sources, mirrors, gratings, and detectors)
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