Material optimization for hard x-ray Fresnel zone plates

John J. Chrzas; Wenbing Yun; Barry P. Lai; Dan G. Legnini; Y. H. Xiao

doi:10.1117/12.167244

1 February 1994 Material optimization for hard x-ray Fresnel zone plates

John J. Chrzas, Wenbing Yun, Barry P. Lai, Dan G. Legnini, Y. H. Xiao

Proceedings Volume 2011, Multilayer and Grazing Incidence X-Ray/EUV Optics II; (1994) https://doi.org/10.1117/12.167244
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

Fresnel zone plates have recently been used as the focusing optic for hard x-ray (5 - 11 keV) microscopy techniques. Fresnel zone plates used in the hard x-ray regime focus by constructive interference effects based on the phase modulation of the incident x-ray beam and have experimentally been shown to focus 20 - 30% of the incident photons to less than a one- micron focal spot. The materials of choice for these zone plates have been Al, Cu, Ni, and Au. The focus of this work is the theoretical optimization of the focusing efficiency of phase- modulating Fresnel zone plates in the hard x-ray regime by appropriate material selection. The optimal materials for three different energy ranges will be examined (1 - 5 keV, 5 - 20 keV, and > 20 keV) and a discussion of the selection criteria involved will be presented.

Citation Download Citation

John J. Chrzas, Wenbing Yun, Barry P. Lai, Dan G. Legnini, and Y. H. Xiao "Material optimization for hard x-ray Fresnel zone plates", Proc. SPIE 2011, Multilayer and Grazing Incidence X-Ray/EUV Optics II, (1 February 1994); https://doi.org/10.1117/12.167244

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