Patent Number: 
Section: claims

1. An X-ray Talbot interferometer comprising:an X-ray diffraction grating capable of diffracting x-ray radiation from an X-ray source to form an interference pattern;an X-ray shield grating capable of partially blocking the X-ray radiation forming the interference pattern; andan X-ray detector capable of detecting X-ray radiation from the X-ray shield grating;wherein the X-ray shield grating includes:a silicon substrate having a plurality of recessed portions, each recessed portion having a bottom and a side wall;silicide layers, each silicide layer disposed in one of the plurality of recessed portions and in contact with the bottom of the one of the plurality of recessed portions; anda metal structure including metal portions, each metal portion disposed in one of the plurality of recessed portions. 2. An X-ray Talbot interferometer comprising:an X-ray shield grating capable of dividing X-ray radiation from an X-ray source;an X-ray diffraction grating capable of diffracting the X-ray radiation from the X-ray shield grating to form an interference pattern; andan X-ray detector capable of detecting at least part of the X-ray radiation forming the interference pattern;wherein the X-ray shield grating includes:a silicon substrate having a plurality of recessed portions, each recessed portion having a bottom and a side wall;silicide layers, each silicide layer disposed in one of the plurality of recessed portions and in contact with the bottom of the one of the plurality of recessed portions; anda metal structure including metal portions, each metal portion disposed in one of the plurality of recessed portions.