论文信息 - Fresnel zone-plate based X-ray microscopy in Zernike phase contrast with sub-50 nm resolution at NSRL

Fresnel zone-plate based X-ray microscopy in Zernike phase contrast with sub-50 nm resolution at NSRL

A transmission X-ray microscope using Fresnel zone-plates (FZPs) has been installed at U7A beamline of National Synchrotron Radiation Laboratory (NSRL). The objective FZP with 45 nm outermost zone width delivers a sub-50 nm resolution. A gold phase ring with 2.5 μm thickness and 4 μm width was placed at the focal plane of the objective FZP at 8 keV to produce a negative Zernike phase contrast. A series of samples were used to test the performance of the Zernike phase contrast X-ray microscopy.

[1] J. Gelb,et al. High resolution hard x-ray microscope on a second generation synchrotron source. , 2008, The Review of scientific instruments.

[2] Yangchao Tian,et al. Three-dimensional imaging of a complex concaved cuboctahedron copper sulfide crystal by x-ray nanotomography , 2008 .

[3] S. Xie,et al. Direct Synthesis of a Macroscale Single‐Walled Carbon Nanotube Non‐Woven Material , 2004 .

[4] Gerd Schneider,et al. Phase contrast studies of biological specimens with the x‐ray microscope at BESSY (invited) , 1995 .

[5] Han-Qing Yu,et al. Microscale analysis of in vitro anaerobic degradation of lignocellulosic wastes by rumen microorganisms. , 2008, Environmental science & technology.